diff options
| author | Timothy E Baldwin <T.E.Baldwin99@members.leeds.ac.uk> | 2018-10-08 19:26:48 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2018-10-10 13:53:12 +0100 |
| commit | f18aef742c8fbd68e280dff0a63ba0ca6ee8ad85 (patch) | |
| tree | 9946ae6b6af6895339aaa19ddcf0347bdff7d962 /arch/arm/include/asm/thread_info.h | |
| parent | 8403bcb779a0be4080510c59b1a582e6ab7a748c (diff) | |
| download | lwn-f18aef742c8fbd68e280dff0a63ba0ca6ee8ad85.tar.gz lwn-f18aef742c8fbd68e280dff0a63ba0ca6ee8ad85.zip | |
ARM: 8802/1: Call syscall_trace_exit even when system call skipped
On at least x86 and ARM64, and as documented in the ptrace man page
a skipped system call will still cause a syscall exit ptrace stop.
Previous to this commit 32-bit ARM did not, resulting in strace
being confused when seccomp skips system calls.
This change also impacts programs that use ptrace to skip system calls.
Fixes: ad75b51459ae ("ARM: 7579/1: arch/allow a scno of -1 to not cause a SIGILL")
Signed-off-by: Timothy E Baldwin <T.E.Baldwin99@members.leeds.ac.uk>
Signed-off-by: Eugene Syromyatnikov <evgsyr@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Kees Cook <keescook@chromium.org>
Tested-by: Eugene Syromyatnikov <evgsyr@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/thread_info.h')
0 files changed, 0 insertions, 0 deletions