On 08/27/2015 10:41 AM, Joseph Myers wrote: > On Thu, 27 Aug 2015, Markos Chandras wrote: > >>>> OK. CC to linux-mips because I see that the MIPS implementation of >>>> copy_siginfo_to_user32 doesn't handle __SI_SYS, unlike arm64 at least, so >>>> I suspect this won't in fact work for n32 or for o32 with a 64-bit kernel. >>> >>> i'm getting reports of seccomp misbehavior on mips already which is what >>> started me down this glibc path. i suspect the original port was tested >>> against o32 kernels only. >>> -mike >>> >> >> I have recently tested mips64 n64/n32 with the testsuite from libseccomp >> and that led me to this fix >> >> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9f161439e4104b641a7bfb9b89581d801159fec8 >> >> if you are aware of other problems (and perhaps a test to trigger them) >> that could be kernel related let me know > > My observation about copy_siginfo_to_user32 missing a case was purely > based on the kernel source code. I've no reason to think it has anything > to do with seccomp problems. > Yeah, my email was directed to Mike who said he is getting reports that seccomp on MIPS has issues and that led him to his glibc patch. -- markos
