Messages in this thread | | | Date | Fri, 3 Aug 2012 14:36:55 +1000 (EST) | From | James Morris <> | Subject | Re: [PATCH v2] seccomp: Make syscall skipping and nr changes more consistent |
| |
On Wed, 1 Aug 2012, Andy Lutomirski wrote:
> This fixes two issues that could cause incompatibility between > kernel versions: > > - If a tracer uses SECCOMP_RET_TRACE to select a syscall number > higher than the largest known syscall, emulate the unknown > vsyscall by returning -ENOSYS. (This is unlikely to make a > noticeable difference on x86-64 due to the way the system call > entry works.) > > - On x86-64 with vsyscall=emulate, skipped vsyscalls were buggy. > > This updates the documentation accordingly. > > Signed-off-by: Andy Lutomirski <luto@amacapital.net> > Acked-by: Will Drewry <wad@chromium.org>
Please rebase this to git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git next
or wait until the next -rc, where I'll sync with Linus.
-- James Morris <jmorris@namei.org>
| |