sys/linux: add syz_execute_func

The function executes random code.

Update #310

6 files changed, 69 insertions, 53 deletions

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 {