diff options
Diffstat (limited to 'sys/linux')
| -rw-r--r-- | sys/linux/sys.txt | 11 | ||||
| -rw-r--r-- | sys/linux/test/landlock_ptrace | 7 | ||||
| -rw-r--r-- | sys/linux/test/syz_clone | 1 | ||||
| -rw-r--r-- | sys/linux/test/syz_clone3 | 3 |
4 files changed, 14 insertions, 8 deletions
diff --git a/sys/linux/sys.txt b/sys/linux/sys.txt index fd934f976..8664e09a8 100644 --- a/sys/linux/sys.txt +++ b/sys/linux/sys.txt @@ -293,9 +293,14 @@ utimes(filename ptr[in, filename], times ptr[in, itimerval]) futimesat(dir fd_dir, pathname ptr[in, filename], times ptr[in, itimerval]) utimensat(dir fd_dir, pathname ptr[in, filename], times ptr[in, itimerval], flags flags[utimensat_flags]) -fork() pid (breaks_returns) -clone(flags flags[clone_flags], sp buffer[in], parentid ptr[out, int32], childtid ptr[out, int32], tls buffer[in]) (breaks_returns) -clone3(args ptr[in, clone_args], size bytesize[args]) pid (breaks_returns) +# Small trick - syzkaller cannot give the proper stack pointer to clone(), but we can do it with the aid of pseudo syscalls. +syz_clone(flags flags[clone_flags], stack buffer[in], stack_len bytesize[stack], parentid ptr[out, int32], childtid ptr[out, int32], tls buffer[in]) pid + +syz_clone3(args ptr[in, clone_args], size bytesize[args]) pid + +# We need these disabled definitions to simplify the presence and the NR checking. +clone(flags flags[clone_flags], sp buffer[in], parentid ptr[out, int32], childtid ptr[out, int32], tls buffer[in]) (breaks_returns, disabled) +clone3(args ptr[in, clone_args], size bytesize[args]) pid (breaks_returns, disabled) clone_args { flags flags[clone3_flags, int64] diff --git a/sys/linux/test/landlock_ptrace b/sys/linux/test/landlock_ptrace index e3037386d..ad63f3e5c 100644 --- a/sys/linux/test/landlock_ptrace +++ b/sys/linux/test/landlock_ptrace @@ -1,13 +1,10 @@ # Creates independent Landlock hierarchies and try different tracer/tracee # schemas (without scheduling control). -# -# fork() is not available for the following architectures: -# requires: -arch=arm64 -arch=riscv64 capset(&AUTO={0x20080522, 0x0}, &AUTO={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) prctl$PR_SET_NO_NEW_PRIVS(0x26, 0x1) -r0 = fork() +r0 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) # PTRACE_ATTACH and PTRACE_DETACH @@ -17,7 +14,7 @@ ptrace(0x11, r0) r1 = landlock_create_ruleset(&AUTO={0x100}, AUTO, 0x0) landlock_restrict_self(r1, 0x0) -r2 = fork() +r2 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) ptrace(0x10, r0) ptrace(0x11, r0) diff --git a/sys/linux/test/syz_clone b/sys/linux/test/syz_clone new file mode 100644 index 000000000..23022429c --- /dev/null +++ b/sys/linux/test/syz_clone @@ -0,0 +1 @@ +syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) diff --git a/sys/linux/test/syz_clone3 b/sys/linux/test/syz_clone3 new file mode 100644 index 000000000..5539d7f86 --- /dev/null +++ b/sys/linux/test/syz_clone3 @@ -0,0 +1,3 @@ +# requires: arch=amd64 + +syz_clone3(&AUTO={0x11, 0x0, 0x0, 0x0, {0x11}, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0}}, AUTO) |