sys/linux: add syz_execute_func

The function executes random code.

Update #310

26 files changed, 141 insertions, 78 deletions

diff --git a/sys/akaros/gen/amd64.go b/sys/akaros/gen/amd64.go
index 52089bc66..36f528698 100644
--- a/sys/akaros/gen/amd64.go
+++ b/sys/akaros/gen/amd64.go
@@ -1305,6 +1305,9 @@ var syscalls_amd64 = []*Syscall{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "new", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "filename", IsVarlen: true}, Kind: 3}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "new_l", TypeSize: 8}}, Buf: "new"},
 	}},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{NR: 126, Name: "tap_fds", CallName: "tap_fds", Args: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "tap_reqs", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array", IsVarlen: true}, Type: &StructType{Key: StructKey{Name: "fd_tap_req"}}}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "nr_reqs", TypeSize: 8}}, Buf: "tap_reqs"},
@@ -1526,4 +1529,4 @@ var consts_amd64 = []ConstValue{
 	{Name: "WUNTRACED", Value: 2},
 }
 
-const revision_amd64 = "44785e2dac3e0f922841ab905a8c4e7838585083"
+const revision_amd64 = "f9824f5b26bc0ee36bc1e6debd6e8a8d6eee33ab"
diff --git a/sys/akaros/sys.txt b/sys/akaros/sys.txt
index 07fe3609d..c7a02faab 100644
--- a/sys/akaros/sys.txt
+++ b/sys/akaros/sys.txt
@@ -16,6 +16,8 @@ include <termios.h>
 resource fd[int32]: 0xffffffffffffffff, AT_FDCWD
 resource pid[int32]: 0, 0xffffffffffffffff
 
+syz_execute_func(text ptr[in, text[target]])
+
 openat(fromfd fd[opt], path ptr[in, filename], path_l len[path], oflag flags[open_flags], mode flags[open_mode]) fd
 read(fd fd, buf buffer[out], count len[buf])
 write(fd fd, buf buffer[in], count len[buf])
diff --git a/sys/freebsd/gen/amd64.go b/sys/freebsd/gen/amd64.go
index 192053c73..5de2ea7bd 100644
--- a/sys/freebsd/gen/amd64.go
+++ b/sys/freebsd/gen/amd64.go
@@ -1876,6 +1876,9 @@ var syscalls_amd64 = []*Syscall{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "new", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "filename", IsVarlen: true}, Kind: 3}},
 	}},
 	{NR: 36, Name: "sync", CallName: "sync"},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{NR: 479, Name: "truncate", CallName: "truncate", Args: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "file", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "filename", IsVarlen: true}, Kind: 3}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "len", TypeSize: 8}}},
@@ -2443,4 +2446,4 @@ var consts_amd64 = []ConstValue{
 	{Name: "WUNTRACED", Value: 2},
 }
 
-const revision_amd64 = "89eac40a68a14ffc0af9fc9b181147236b82d00b"
+const revision_amd64 = "06d50288c46275b56218cab0097fcb71a7f0f80e"
diff --git a/sys/freebsd/sys.txt b/sys/freebsd/sys.txt
index 28b486dcd..cf1dd960e 100644
--- a/sys/freebsd/sys.txt
+++ b/sys/freebsd/sys.txt
@@ -19,6 +19,8 @@ include <sys/wait.h>
 include <linux/linux.h>
 include <compat/linux/linux_event.h>
 
+syz_execute_func(text ptr[in, text[target]])
+
 pipe(pipefd ptr[out, pipefd])
 
 sendfile(fdout fd, fdin fd, off ptr[inout, fileoff[int64], opt], count int64)
diff --git a/sys/fuchsia/gen/amd64.go b/sys/fuchsia/gen/amd64.go
index d489c9238..421955818 100644
--- a/sys/fuchsia/gen/amd64.go
+++ b/sys/fuchsia/gen/amd64.go
@@ -1647,6 +1647,9 @@ var syscalls_amd64 = []*Syscall{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "new", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "filename", IsVarlen: true}, Kind: 3}},
 	}},
 	{Name: "sync", CallName: "sync"},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "syz_future_time", CallName: "syz_future_time", Args: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "when", TypeSize: 8}}, Kind: 2, RangeEnd: 1},
 	}, Ret: &ResourceType{TypeCommon: TypeCommon{TypeName: "zx_time", FldName: "ret", TypeSize: 8, ArgDir: 1}}},
@@ -2571,8 +2574,8 @@ var syscalls_amd64 = []*Syscall{
 	{Name: "zx_process_start", CallName: "zx_process_start", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "zx_process", FldName: "process", TypeSize: 4}},
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "zx_thread", FldName: "thread", TypeSize: 4}},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "entry", TypeSize: 8}}},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "stack", TypeSize: 8}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "entry", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "stack", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array", ArgDir: 1, IsVarlen: true}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "arg1", TypeSize: 8}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "arg2", TypeSize: 8}}},
 	}},
@@ -2643,8 +2646,8 @@ var syscalls_amd64 = []*Syscall{
 	}},
 	{Name: "zx_thread_start", CallName: "zx_thread_start", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "zx_thread", FldName: "handle", TypeSize: 4}},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "entry", TypeSize: 8}}},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "stack", TypeSize: 8}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "entry", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "stack", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array", ArgDir: 1, IsVarlen: true}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "arg1", TypeSize: 8}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "arg2", TypeSize: 8}}},
 	}},
@@ -2985,4 +2988,4 @@ var consts_amd64 = []ConstValue{
 	{Name: "fuchsia_io_SeekOrigin_Start"},
 }
 
-const revision_amd64 = "2a5cb64c987696cb8bdf1d6d9561c04993cf3299"
+const revision_amd64 = "ee62749ce0e69fd29de1864a220e909a18613438"
diff --git a/sys/fuchsia/gen/arm64.go b/sys/fuchsia/gen/arm64.go
index 460544bab..e6eb6fdb6 100644
--- a/sys/fuchsia/gen/arm64.go
+++ b/sys/fuchsia/gen/arm64.go
@@ -1647,6 +1647,9 @@ var syscalls_arm64 = []*Syscall{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "new", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "filename", IsVarlen: true}, Kind: 3}},
 	}},
 	{Name: "sync", CallName: "sync"},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "syz_future_time", CallName: "syz_future_time", Args: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "when", TypeSize: 8}}, Kind: 2, RangeEnd: 1},
 	}, Ret: &ResourceType{TypeCommon: TypeCommon{TypeName: "zx_time", FldName: "ret", TypeSize: 8, ArgDir: 1}}},
@@ -2571,8 +2574,8 @@ var syscalls_arm64 = []*Syscall{
 	{Name: "zx_process_start", CallName: "zx_process_start", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "zx_process", FldName: "process", TypeSize: 4}},
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "zx_thread", FldName: "thread", TypeSize: 4}},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "entry", TypeSize: 8}}},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "stack", TypeSize: 8}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "entry", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "stack", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array", ArgDir: 1, IsVarlen: true}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "arg1", TypeSize: 8}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "arg2", TypeSize: 8}}},
 	}},
@@ -2643,8 +2646,8 @@ var syscalls_arm64 = []*Syscall{
 	}},
 	{Name: "zx_thread_start", CallName: "zx_thread_start", Args: []Type{
 		&ResourceType{TypeCommon: TypeCommon{TypeName: "zx_thread", FldName: "handle", TypeSize: 4}},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "entry", TypeSize: 8}}},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "stack", TypeSize: 8}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "entry", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "stack", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "array", ArgDir: 1, IsVarlen: true}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "arg1", TypeSize: 8}}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "arg2", TypeSize: 8}}},
 	}},
@@ -2985,4 +2988,4 @@ var consts_arm64 = []ConstValue{
 	{Name: "fuchsia_io_SeekOrigin_Start"},
 }
 
-const revision_arm64 = "974ef513ae535d2b92308edd342169a59b596cd4"
+const revision_arm64 = "80d5b2ce01d8c9deca31efaa1a61da313eaa44e6"
diff --git a/sys/fuchsia/processes.txt b/sys/fuchsia/processes.txt
index c6f51c3d2..835edbb1e 100644
--- a/sys/fuchsia/processes.txt
+++ b/sys/fuchsia/processes.txt
@@ -6,7 +6,7 @@ include <zircon/syscalls.h>
 resource zx_process[zx_task]
 
 zx_process_create(job zx_job, name ptr[in, string], name_len len[name], options const[0], proc_handle ptr[out, zx_process], vmar_handle ptr[out, zx_vmar])
-zx_process_start(process zx_process, thread zx_thread, entry intptr, stack intptr, arg1 const[0], arg2 const[0])
+zx_process_start(process zx_process, thread zx_thread, entry ptr[in, text[target]], stack ptr[out, array[int8]], arg1 const[0], arg2 const[0])
 zx_process_read_memory(process zx_process, vaddr ptr[out, int8], buffer ptr[out, array[int8]], len len[buffer], actual ptr[out, intptr])
 # TODO: temporary disabled as it crashes kernel left and right.
 # zx_process_write_memory(process zx_process, vaddr ptr[out, int8], buffer ptr[in, array[int8]], len len[buffer], actual ptr[out, intptr])
diff --git a/sys/fuchsia/sys.txt b/sys/fuchsia/sys.txt
index 3ed323799..1fb885f03 100644
--- a/sys/fuchsia/sys.txt
+++ b/sys/fuchsia/sys.txt
@@ -6,6 +6,8 @@
 include <zircon/syscalls.h>
 include <ddk/driver.h>
 
+syz_execute_func(text ptr[in, text[target]])
+
 # Provided by sysroot (include/ddk/driver.h)
 resource zx_root_resource[zx_handle]
 get_root_resource() zx_root_resource
diff --git a/sys/fuchsia/threads.txt b/sys/fuchsia/threads.txt
index ef4831e03..7947703d9 100644
--- a/sys/fuchsia/threads.txt
+++ b/sys/fuchsia/threads.txt
@@ -7,7 +7,7 @@ include <zircon/syscalls/debug.h>
 resource zx_thread[zx_task]
 
 zx_thread_create(process zx_process, name ptr[in, string], name_len len[name], options const[0], out ptr[out, zx_thread])
-zx_thread_start(handle zx_thread, entry intptr, stack intptr, arg1 const[0], arg2 const[0])
+zx_thread_start(handle zx_thread, entry ptr[in, text[target]], stack ptr[out, array[int8]], arg1 const[0], arg2 const[0])
 zx_thread_exit()
 # Note: kind corresponds to ZX_THREAD_STATE_REGSET0..9 constants.
 zx_thread_read_state(handle zx_thread, kind int32[0:9], buffer ptr[out, array[int64]], len bytesize[buffer], actual ptr[out, int32])
diff --git a/sys/linux/gen/386.go b/sys/linux/gen/386.go
index c9b1148c4..56fc496f4 100644
--- a/sys/linux/gen/386.go
+++ b/sys/linux/gen/386.go
@@ -8026,7 +8026,7 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "kvm_text_arm64"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_arm64", TypeSize: 12}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 4}}},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 5}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 4}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86", TypeSize: 12}, Fields: []Type{
@@ -8037,22 +8037,22 @@ var structDescs_386 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_16"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_16", TypeSize: 12}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 4}}, Val: 16},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 1}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 2}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 4}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_32"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_32", TypeSize: 12}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 4}}, Val: 32},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 2}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 3}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 4}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_64"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_64", TypeSize: 12}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 4}}, Val: 64},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 3}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 4}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 4}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_real"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_real", TypeSize: 12}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 4}}, Val: 8},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 1}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 4}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_tpr_access_ctl"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_tpr_access_ctl", TypeSize: 40}, Fields: []Type{
@@ -16399,18 +16399,18 @@ var structDescs_386 = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "dxferp", TypeSize: 4}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array", IsVarlen: true}, Type: &StructType{Key: StructKey{Name: "iovec[out, array[int8]]"}}}},
 	}}},
 	{Key: StructKey{Name: "sigaction"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigaction", TypeSize: 24}, Fields: []Type{
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "handler", TypeSize: 4}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "handler", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 		&StructType{Key: StructKey{Name: "sigset"}, FldName: "mask"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sigaction_flags", FldName: "flags", TypeSize: 4}}, Vals: []uint64{1, 2, 1073741824, 134217728, 2147483648, 268435456, 4}, BitMask: true},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "restor", TypeSize: 4}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "restor", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 	}}},
 	{Key: StructKey{Name: "sigaction", Dir: 1}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigaction", TypeSize: 24, ArgDir: 1}, Fields: []Type{
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "handler", TypeSize: 4, ArgDir: 1}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "handler", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 		&StructType{Key: StructKey{Name: "sigset", Dir: 1}, FldName: "mask"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sigaction_flags", FldName: "flags", TypeSize: 4, ArgDir: 1}}, Vals: []uint64{1, 2, 1073741824, 134217728, 2147483648, 268435456, 4}, BitMask: true},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "restor", TypeSize: 4, ArgDir: 1}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "restor", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 	}}},
 	{Key: StructKey{Name: "sigevent"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigevent", TypeSize: 64}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "val", TypeSize: 4}}},
@@ -32865,6 +32865,9 @@ var syscalls_386 = []*Syscall{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "packet", TypeSize: 4}, Type: &StructType{Key: StructKey{Name: "eth_packet"}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "frags", TypeSize: 4, IsOptional: true}, Type: &StructType{Key: StructKey{Name: "vnet_fragmentation"}}},
 	}},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "syz_extract_tcp_res", CallName: "syz_extract_tcp_res", Args: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "res", TypeSize: 4}, Type: &StructType{Key: StructKey{Name: "tcp_resources", Dir: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "seq_inc", TypeSize: 4}}},
@@ -40480,4 +40483,4 @@ var consts_386 = []ConstValue{
 	{Name: "bpf_insn_load_imm_dw", Value: 24},
 }
 
-const revision_386 = "73c32691841967fea34cade58340298a0a6e34a3"
+const revision_386 = "cf409e12bbb8bef7899f39295b0b6d69d318af8d"
diff --git a/sys/linux/gen/amd64.go b/sys/linux/gen/amd64.go
index a2f69b322..89311786a 100644
--- a/sys/linux/gen/amd64.go
+++ b/sys/linux/gen/amd64.go
@@ -8141,7 +8141,7 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "kvm_text_arm64"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_arm64", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 5}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86", TypeSize: 24}, Fields: []Type{
@@ -8152,22 +8152,22 @@ var structDescs_amd64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_16"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_16", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}, Val: 16},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 1}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 2}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_32"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_32", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}, Val: 32},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 2}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 3}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_64"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_64", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}, Val: 64},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 3}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 4}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_real"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_real", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}, Val: 8},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 1}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_tpr_access_ctl"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_tpr_access_ctl", TypeSize: 40}, Fields: []Type{
@@ -16663,16 +16663,16 @@ var structDescs_amd64 = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "unused2", TypeSize: 8}}},
 	}}},
 	{Key: StructKey{Name: "sigaction"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigaction", TypeSize: 32}, Fields: []Type{
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "handler", TypeSize: 8}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "handler", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 		&StructType{Key: StructKey{Name: "sigset"}, FldName: "mask"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sigaction_flags", FldName: "flags", TypeSize: 8}}, Vals: []uint64{1, 2, 1073741824, 134217728, 2147483648, 268435456, 4}, BitMask: true},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "restor", TypeSize: 8}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "restor", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 	}}},
 	{Key: StructKey{Name: "sigaction", Dir: 1}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigaction", TypeSize: 32, ArgDir: 1}, Fields: []Type{
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "handler", TypeSize: 8, ArgDir: 1}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "handler", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 		&StructType{Key: StructKey{Name: "sigset", Dir: 1}, FldName: "mask"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sigaction_flags", FldName: "flags", TypeSize: 8, ArgDir: 1}}, Vals: []uint64{1, 2, 1073741824, 134217728, 2147483648, 268435456, 4}, BitMask: true},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "restor", TypeSize: 8, ArgDir: 1}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "restor", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 	}}},
 	{Key: StructKey{Name: "sigevent"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigevent", TypeSize: 64}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "val", TypeSize: 8}}},
@@ -33534,6 +33534,9 @@ var syscalls_amd64 = []*Syscall{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "packet", TypeSize: 8}, Type: &StructType{Key: StructKey{Name: "eth_packet"}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "frags", TypeSize: 8, IsOptional: true}, Type: &StructType{Key: StructKey{Name: "vnet_fragmentation"}}},
 	}},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "syz_extract_tcp_res", CallName: "syz_extract_tcp_res", Args: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "res", TypeSize: 8}, Type: &StructType{Key: StructKey{Name: "tcp_resources", Dir: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "seq_inc", TypeSize: 4}}},
@@ -41174,4 +41177,4 @@ var consts_amd64 = []ConstValue{
 	{Name: "bpf_insn_load_imm_dw", Value: 24},
 }
 
-const revision_amd64 = "26712f7e003ed8690f47cf5edb70bd3eb94766c1"
+const revision_amd64 = "3efd822501eed7b0536ca7f8ba2b7720b9f6bab3"
diff --git a/sys/linux/gen/arm.go b/sys/linux/gen/arm.go
index 154b05117..270ec0ceb 100644
--- a/sys/linux/gen/arm.go
+++ b/sys/linux/gen/arm.go
@@ -7901,7 +7901,7 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "kvm_text_arm64"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_arm64", TypeSize: 12}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 4}}},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 5}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 4}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86", TypeSize: 12}, Fields: []Type{
@@ -7912,22 +7912,22 @@ var structDescs_arm = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_16"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_16", TypeSize: 12}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 4}}, Val: 16},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 1}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 2}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 4}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_32"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_32", TypeSize: 12}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 4}}, Val: 32},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 2}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 3}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 4}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_64"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_64", TypeSize: 12}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 4}}, Val: 64},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 3}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 4}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 4}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_real"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_real", TypeSize: 12}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 4}}, Val: 8},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 1}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 4}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_tpr_access_ctl"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_tpr_access_ctl", TypeSize: 40}, Fields: []Type{
@@ -16280,18 +16280,18 @@ var structDescs_arm = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "unused2", TypeSize: 4}}},
 	}}},
 	{Key: StructKey{Name: "sigaction"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigaction", TypeSize: 24}, Fields: []Type{
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "handler", TypeSize: 4}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "handler", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 		&StructType{Key: StructKey{Name: "sigset"}, FldName: "mask"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sigaction_flags", FldName: "flags", TypeSize: 4}}, Vals: []uint64{1, 2, 1073741824, 134217728, 2147483648, 268435456, 4}, BitMask: true},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "restor", TypeSize: 4}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "restor", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 	}}},
 	{Key: StructKey{Name: "sigaction", Dir: 1}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigaction", TypeSize: 24, ArgDir: 1}, Fields: []Type{
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "handler", TypeSize: 4, ArgDir: 1}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "handler", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "pad", TypeSize: 4}}, IsPad: true},
 		&StructType{Key: StructKey{Name: "sigset", Dir: 1}, FldName: "mask"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sigaction_flags", FldName: "flags", TypeSize: 4, ArgDir: 1}}, Vals: []uint64{1, 2, 1073741824, 134217728, 2147483648, 268435456, 4}, BitMask: true},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "restor", TypeSize: 4, ArgDir: 1}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "restor", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 	}}},
 	{Key: StructKey{Name: "sigevent"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigevent", TypeSize: 64}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "val", TypeSize: 4}}},
@@ -32792,6 +32792,9 @@ var syscalls_arm = []*Syscall{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "packet", TypeSize: 4}, Type: &StructType{Key: StructKey{Name: "eth_packet"}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "frags", TypeSize: 4, IsOptional: true}, Type: &StructType{Key: StructKey{Name: "vnet_fragmentation"}}},
 	}},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "syz_extract_tcp_res", CallName: "syz_extract_tcp_res", Args: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "res", TypeSize: 4}, Type: &StructType{Key: StructKey{Name: "tcp_resources", Dir: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "seq_inc", TypeSize: 4}}},
@@ -40346,4 +40349,4 @@ var consts_arm = []ConstValue{
 	{Name: "bpf_insn_load_imm_dw", Value: 24},
 }
 
-const revision_arm = "f155a0335de7dec3226189d25e230ba9889ff0ef"
+const revision_arm = "d64ccba4ff5f75614cce9e04b971a39e735578b2"
diff --git a/sys/linux/gen/arm64.go b/sys/linux/gen/arm64.go
index 1cb4587bb..d37ef5ba9 100644
--- a/sys/linux/gen/arm64.go
+++ b/sys/linux/gen/arm64.go
@@ -7999,7 +7999,7 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "kvm_text_arm64"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_arm64", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 5}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86", TypeSize: 24}, Fields: []Type{
@@ -8010,22 +8010,22 @@ var structDescs_arm64 = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_16"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_16", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}, Val: 16},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 1}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 2}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_32"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_32", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}, Val: 32},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 2}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 3}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_64"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_64", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}, Val: 64},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 3}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 4}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_real"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_real", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}, Val: 8},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 1}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_tpr_access_ctl"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_tpr_access_ctl", TypeSize: 40}, Fields: []Type{
@@ -16480,16 +16480,16 @@ var structDescs_arm64 = []*KeyedStruct{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "unused2", TypeSize: 8}}},
 	}}},
 	{Key: StructKey{Name: "sigaction"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigaction", TypeSize: 32}, Fields: []Type{
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "handler", TypeSize: 8}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "handler", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 		&StructType{Key: StructKey{Name: "sigset"}, FldName: "mask"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sigaction_flags", FldName: "flags", TypeSize: 8}}, Vals: []uint64{1, 2, 1073741824, 134217728, 2147483648, 268435456, 4}, BitMask: true},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "restor", TypeSize: 8}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "restor", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 	}}},
 	{Key: StructKey{Name: "sigaction", Dir: 1}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigaction", TypeSize: 32, ArgDir: 1}, Fields: []Type{
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "handler", TypeSize: 8, ArgDir: 1}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "handler", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 		&StructType{Key: StructKey{Name: "sigset", Dir: 1}, FldName: "mask"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sigaction_flags", FldName: "flags", TypeSize: 8, ArgDir: 1}}, Vals: []uint64{1, 2, 1073741824, 134217728, 2147483648, 268435456, 4}, BitMask: true},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "restor", TypeSize: 8, ArgDir: 1}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "restor", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 	}}},
 	{Key: StructKey{Name: "sigevent"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigevent", TypeSize: 64}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "val", TypeSize: 8}}},
@@ -33037,6 +33037,9 @@ var syscalls_arm64 = []*Syscall{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "packet", TypeSize: 8}, Type: &StructType{Key: StructKey{Name: "eth_packet"}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "frags", TypeSize: 8, IsOptional: true}, Type: &StructType{Key: StructKey{Name: "vnet_fragmentation"}}},
 	}},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "syz_extract_tcp_res", CallName: "syz_extract_tcp_res", Args: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "res", TypeSize: 8}, Type: &StructType{Key: StructKey{Name: "tcp_resources", Dir: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "seq_inc", TypeSize: 4}}},
@@ -40568,4 +40571,4 @@ var consts_arm64 = []ConstValue{
 	{Name: "bpf_insn_load_imm_dw", Value: 24},
 }
 
-const revision_arm64 = "1fd22f27ba905dec42b576344dd6c58c011de140"
+const revision_arm64 = "33b760e03637540176d75bef5357cc5b147afabe"
diff --git a/sys/linux/gen/ppc64le.go b/sys/linux/gen/ppc64le.go
index cbfc8f3ec..384002896 100644
--- a/sys/linux/gen/ppc64le.go
+++ b/sys/linux/gen/ppc64le.go
@@ -7977,7 +7977,7 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "kvm_text_arm64"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_arm64", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 5}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86", TypeSize: 24}, Fields: []Type{
@@ -7988,22 +7988,22 @@ var structDescs_ppc64le = []*KeyedStruct{
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_16"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_16", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}, Val: 16},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 1}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 2}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_32"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_32", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}, Val: 32},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 2}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 3}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_64"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_64", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}, Val: 64},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 3}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 4}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_text_x86_real"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_text_x86_real", TypeSize: 24}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "typ", TypeSize: 8}}, Val: 8},
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 1}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "size", TypeSize: 8}}, Buf: "text"},
 	}}},
 	{Key: StructKey{Name: "kvm_tpr_access_ctl"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "kvm_tpr_access_ctl", TypeSize: 40}, Fields: []Type{
@@ -16362,16 +16362,16 @@ var structDescs_ppc64le = []*KeyedStruct{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "dxferp", TypeSize: 8}, Type: &ArrayType{TypeCommon: TypeCommon{TypeName: "array", IsVarlen: true}, Type: &StructType{Key: StructKey{Name: "iovec[out, array[int8]]"}}}},
 	}}},
 	{Key: StructKey{Name: "sigaction"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigaction", TypeSize: 32}, Fields: []Type{
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "handler", TypeSize: 8}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "handler", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 		&StructType{Key: StructKey{Name: "sigset"}, FldName: "mask"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sigaction_flags", FldName: "flags", TypeSize: 8}}, Vals: []uint64{1, 2, 1073741824, 134217728, 2147483648, 268435456, 4}, BitMask: true},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "restor", TypeSize: 8}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "restor", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 	}}},
 	{Key: StructKey{Name: "sigaction", Dir: 1}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigaction", TypeSize: 32, ArgDir: 1}, Fields: []Type{
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "handler", TypeSize: 8, ArgDir: 1}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "handler", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 		&StructType{Key: StructKey{Name: "sigset", Dir: 1}, FldName: "mask"},
 		&FlagsType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "sigaction_flags", FldName: "flags", TypeSize: 8, ArgDir: 1}}, Vals: []uint64{1, 2, 1073741824, 134217728, 2147483648, 268435456, 4}, BitMask: true},
-		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "restor", TypeSize: 8, ArgDir: 1}}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "restor", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
 	}}},
 	{Key: StructKey{Name: "sigevent"}, Desc: &StructDesc{TypeCommon: TypeCommon{TypeName: "sigevent", TypeSize: 64}, Fields: []Type{
 		&ConstType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "const", FldName: "val", TypeSize: 8}}},
@@ -31411,6 +31411,9 @@ var syscalls_ppc64le = []*Syscall{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "packet", TypeSize: 8}, Type: &StructType{Key: StructKey{Name: "eth_packet"}}},
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "frags", TypeSize: 8, IsOptional: true}, Type: &StructType{Key: StructKey{Name: "vnet_fragmentation"}}},
 	}},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "syz_extract_tcp_res", CallName: "syz_extract_tcp_res", Args: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "res", TypeSize: 8}, Type: &StructType{Key: StructKey{Name: "tcp_resources", Dir: 1}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "seq_inc", TypeSize: 4}}},
@@ -37924,4 +37927,4 @@ var consts_ppc64le = []ConstValue{
 	{Name: "bpf_insn_load_imm_dw", Value: 24},
 }
 
-const revision_ppc64le = "cfee5c1892c53b104910906c54ef416def23581b"
+const revision_ppc64le = "17f888e873bc99a49d971c80b87ddad7d8291e82"
diff --git a/sys/linux/sys.txt b/sys/linux/sys.txt
index def19a7bd..cbb9ecbc5 100644
--- a/sys/linux/sys.txt
+++ b/sys/linux/sys.txt
@@ -60,6 +60,8 @@ resource fd_dir[fd]
 
 type signalno int32[0:65]
 
+syz_execute_func(text ptr[in, text[target]])
+
 open(file ptr[in, filename], flags flags[open_flags], mode flags[open_mode]) fd
 # Just so that we have something that creates fd_dir resources.
 open$dir(file ptr[in, filename], flags flags[open_flags], mode flags[open_mode]) fd_dir
@@ -734,11 +736,10 @@ rlimit {
 }
 
 sigaction {
-# TODO: function pointers need special support
-	handler	intptr
+	handler	ptr[in, text[target]]
 	mask	sigset
 	flags	flags[sigaction_flags, intptr]
-	restor	intptr
+	restor	ptr[in, text[target]]
 }
 
 tms {
diff --git a/sys/netbsd/gen/amd64.go b/sys/netbsd/gen/amd64.go
index cd7cdcd03..ece51bee1 100644
--- a/sys/netbsd/gen/amd64.go
+++ b/sys/netbsd/gen/amd64.go
@@ -1251,6 +1251,9 @@ var syscalls_amd64 = []*Syscall{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "new", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "filename", IsVarlen: true}, Kind: 3}},
 	}},
 	{NR: 36, Name: "sync", CallName: "sync"},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{NR: 200, Name: "truncate", CallName: "truncate", Args: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "file", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "filename", IsVarlen: true}, Kind: 3}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "intptr", FldName: "len", TypeSize: 8}}},
@@ -1677,4 +1680,4 @@ var consts_amd64 = []ConstValue{
 	{Name: "WUNTRACED", Value: 2},
 }
 
-const revision_amd64 = "c05720ceb16e651f6ae9addd1f5be83497d861e3"
+const revision_amd64 = "741d8f94955b7b371dee88f03db02ab85d5a9384"
diff --git a/sys/netbsd/sys.txt b/sys/netbsd/sys.txt
index fd02a09e8..aff757d26 100644
--- a/sys/netbsd/sys.txt
+++ b/sys/netbsd/sys.txt
@@ -16,6 +16,8 @@ include <time.h>
 include <signal.h>
 include <sys/wait.h>
 
+syz_execute_func(text ptr[in, text[target]])
+
 pipe(pipefd ptr[out, pipefd])
 
 stat(file ptr[in, filename], statbuf ptr[out, stat])
diff --git a/sys/openbsd/gen/amd64.go b/sys/openbsd/gen/amd64.go
index 3ecb31c0a..4e7acb920 100644
--- a/sys/openbsd/gen/amd64.go
+++ b/sys/openbsd/gen/amd64.go
@@ -1456,6 +1456,9 @@ var syscalls_amd64 = []*Syscall{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "new", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "filename", IsVarlen: true}, Kind: 3}},
 	}},
 	{NR: 36, Name: "sync", CallName: "sync"},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "syz_open_pts", CallName: "syz_open_pts", Ret: &ResourceType{TypeCommon: TypeCommon{TypeName: "fd_tty", FldName: "ret", TypeSize: 4, ArgDir: 1}}},
 	{NR: 200, Name: "truncate", CallName: "truncate", Args: []Type{
 		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "file", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "filename", IsVarlen: true}, Kind: 3}},
@@ -1877,4 +1880,4 @@ var consts_amd64 = []ConstValue{
 	{Name: "WUNTRACED", Value: 2},
 }
 
-const revision_amd64 = "f1bde02bbb60bf849ed61dda9a552900891199ef"
+const revision_amd64 = "b7a0cb1d6df43d07bd4ab11d2c4b1a2e1c046ac1"
diff --git a/sys/openbsd/sys.txt b/sys/openbsd/sys.txt
index e071ea9c4..c05a17acf 100644
--- a/sys/openbsd/sys.txt
+++ b/sys/openbsd/sys.txt
@@ -16,6 +16,8 @@ include <time.h>
 include <signal.h>
 include <sys/wait.h>
 
+syz_execute_func(text ptr[in, text[target]])
+
 pipe(pipefd ptr[out, pipefd])
 
 stat(file ptr[in, filename], statbuf ptr[out, stat])
diff --git a/sys/test/gen/32_fork_shmem.go b/sys/test/gen/32_fork_shmem.go
index 4b6fd369e..55a629b00 100644
--- a/sys/test/gen/32_fork_shmem.go
+++ b/sys/test/gen/32_fork_shmem.go
@@ -38,6 +38,9 @@ var syscalls_32_fork_shmem = []*Syscall{
 	{Name: "syz_errno", CallName: "syz_errno", Args: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "v", TypeSize: 4}}},
 	}},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "syz_mmap", CallName: "syz_mmap", Args: []Type{
 		&VmaType{TypeCommon: TypeCommon{TypeName: "vma", FldName: "addr", TypeSize: 4}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "len", TypeSize: 4}}, Buf: "addr"},
@@ -51,4 +54,4 @@ var consts_32_fork_shmem = []ConstValue{
 	{Name: "ONLY_32BITS_CONST", Value: 1},
 }
 
-const revision_32_fork_shmem = "d09983a8bb4f2ccd0e303191862d170b5b636bd8"
+const revision_32_fork_shmem = "4225c1e93671306efa6a41958a6d553aed7e8cf7"
diff --git a/sys/test/gen/32_shmem.go b/sys/test/gen/32_shmem.go
index 2e26dbb58..dfa8a8398 100644
--- a/sys/test/gen/32_shmem.go
+++ b/sys/test/gen/32_shmem.go
@@ -38,6 +38,9 @@ var syscalls_32_shmem = []*Syscall{
 	{Name: "syz_errno", CallName: "syz_errno", Args: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "v", TypeSize: 4}}},
 	}},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 4}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "syz_mmap", CallName: "syz_mmap", Args: []Type{
 		&VmaType{TypeCommon: TypeCommon{TypeName: "vma", FldName: "addr", TypeSize: 4}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "len", TypeSize: 4}}, Buf: "addr"},
@@ -51,4 +54,4 @@ var consts_32_shmem = []ConstValue{
 	{Name: "ONLY_32BITS_CONST", Value: 1},
 }
 
-const revision_32_shmem = "8d0f255b4d310c70d0e7d65ac8e5c6c3032a9e14"
+const revision_32_shmem = "ae161a1d8e44b101412b6f8d8fdde3a6ce553e55"
diff --git a/sys/test/gen/64.go b/sys/test/gen/64.go
index 017ad5bda..08fcdd966 100644
--- a/sys/test/gen/64.go
+++ b/sys/test/gen/64.go
@@ -601,6 +601,9 @@ var syscalls_64 = []*Syscall{
 	{Name: "syz_errno", CallName: "syz_errno", Args: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "v", TypeSize: 4}}},
 	}},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "syz_mmap", CallName: "syz_mmap", Args: []Type{
 		&VmaType{TypeCommon: TypeCommon{TypeName: "vma", FldName: "addr", TypeSize: 8}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "len", TypeSize: 8}}, Buf: "addr"},
@@ -843,19 +846,19 @@ var syscalls_64 = []*Syscall{
 		&UnionType{Key: StructKey{Name: "union_arg"}, FldName: "a0"},
 	}},
 	{Name: "test$text_x86_16", CallName: "test", Args: []Type{
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "a0", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 1}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "a0", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 2}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "a1", TypeSize: 8}}, Buf: "a0"},
 	}},
 	{Name: "test$text_x86_32", CallName: "test", Args: []Type{
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "a0", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 2}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "a0", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 3}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "a1", TypeSize: 8}}, Buf: "a0"},
 	}},
 	{Name: "test$text_x86_64", CallName: "test", Args: []Type{
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "a0", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 3}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "a0", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 4}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "a1", TypeSize: 8}}, Buf: "a0"},
 	}},
 	{Name: "test$text_x86_real", CallName: "test", Args: []Type{
-		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "a0", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "a0", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4, Text: 1}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "a1", TypeSize: 8}}, Buf: "a0"},
 	}},
 	{Name: "test$type_confusion1", CallName: "test", Args: []Type{
@@ -908,4 +911,4 @@ var consts_64 = []ConstValue{
 	{Name: "SYS_unsupported"},
 }
 
-const revision_64 = "3a71e90e1d9f2ae8b0cbfa9e76a429a74ca2ce90"
+const revision_64 = "6ffded136a7c445ee912402759cc9f71c3add37a"
diff --git a/sys/test/gen/64_fork.go b/sys/test/gen/64_fork.go
index 95171623b..cf1b5beb9 100644
--- a/sys/test/gen/64_fork.go
+++ b/sys/test/gen/64_fork.go
@@ -38,6 +38,9 @@ var syscalls_64_fork = []*Syscall{
 	{Name: "syz_errno", CallName: "syz_errno", Args: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "v", TypeSize: 4}}},
 	}},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "syz_mmap", CallName: "syz_mmap", Args: []Type{
 		&VmaType{TypeCommon: TypeCommon{TypeName: "vma", FldName: "addr", TypeSize: 8}},
 		&LenType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "len", FldName: "len", TypeSize: 8}}, Buf: "addr"},
@@ -50,4 +53,4 @@ var consts_64_fork = []ConstValue{
 	{Name: "IPPROTO_UDP", Value: 17},
 }
 
-const revision_64_fork = "39c2288dd1c825ce7a587f946cfc91e0e453cf5e"
+const revision_64_fork = "ef850b63cd75f943301e586db069812cc63ac259"
diff --git a/sys/test/test.txt b/sys/test/test.txt
index 2fef80acb..8a79d5935 100644
--- a/sys/test/test.txt
+++ b/sys/test/test.txt
@@ -3,6 +3,8 @@
 
 # Syscalls used in syzkaller tests.
 
+syz_execute_func(text ptr[in, text[target]])
+
 test()
 
 # Integer types.
diff --git a/sys/windows/gen/amd64.go b/sys/windows/gen/amd64.go
index 445fc3d01..04f6ba6bf 100644
--- a/sys/windows/gen/amd64.go
+++ b/sys/windows/gen/amd64.go
@@ -14272,6 +14272,9 @@ var syscalls_amd64 = []*Syscall{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "type", TypeSize: 4}}},
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "protocol", TypeSize: 4}}},
 	}},
+	{Name: "syz_execute_func", CallName: "syz_execute_func", Args: []Type{
+		&PtrType{TypeCommon: TypeCommon{TypeName: "ptr", FldName: "text", TypeSize: 8}, Type: &BufferType{TypeCommon: TypeCommon{TypeName: "text", IsVarlen: true}, Kind: 4}},
+	}},
 	{Name: "timeBeginPeriod", CallName: "timeBeginPeriod", Args: []Type{
 		&IntType{IntTypeCommon: IntTypeCommon{TypeCommon: TypeCommon{TypeName: "int32", FldName: "uPeriod", TypeSize: 4}}},
 	}},
@@ -14615,4 +14618,4 @@ var consts_amd64 = []ConstValue{
 	{Name: "WRITE_OWNER", Value: 524288},
 }
 
-const revision_amd64 = "f2b48fb82a68b0cb24b2ab9638add66deb9542dd"
+const revision_amd64 = "7f58e6832b5d8674b8a77505e6eb0fa213781c23"
diff --git a/sys/windows/sys.txt b/sys/windows/sys.txt
index 2bbb492ad..a25b3b9c3 100644
--- a/sys/windows/sys.txt
+++ b/sys/windows/sys.txt
@@ -6,6 +6,8 @@ include <windows.h>
 resource HANDLE[intptr]: INVALID_HANDLE_VALUE
 resource hFile[HANDLE]
 
+syz_execute_func(text ptr[in, text[target]])
+
 CloseHandle(hObject HANDLE)
 CreateFileA(lpFileName ptr[in, filename], dwDesiredAccess flags[file_access_rights], dwShareMode flags[file_share_mode], lpSecurityAttributes ptr[in, SECURITY_ATTRIBUTES, opt], dwCreationDisposition flags[file_create_disposition], dwFlagsAndAttributes flags[file_attributes], hTemplateFile HANDLE[opt]) hFile
 VirtualAlloc(lpAddress vma, dwSize len[lpAddress], flAllocationType flags[allocation_type], flProtect flags[protect_flags])