* Re: Possible bug kernel/seccomp.c [not found] <83ebb916-20de-dba5-a5a2-c7f120ba7b21@illinois.edu> @ 2021-03-04 19:14 ` Hsuan-Chi Kuo 2021-03-04 20:00 ` Kees Cook 0 siblings, 1 reply; 2+ messages in thread From: Hsuan-Chi Kuo @ 2021-03-04 19:14 UTC (permalink / raw) To: keescook; +Cc: linux-kernel cc mailing list. On 3/4/21 1:10 PM, Hsuan-Chi Kuo wrote: > Hello, > > Should this line be atomic_read(&caller->seccomp.filter_count)); > > https://elixir.bootlin.com/linux/latest/source/kernel/seccomp.c#L600 > > I think the desired behavior is to synchronize the filter count. > > Thank you > ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Possible bug kernel/seccomp.c 2021-03-04 19:14 ` Possible bug kernel/seccomp.c Hsuan-Chi Kuo @ 2021-03-04 20:00 ` Kees Cook 0 siblings, 0 replies; 2+ messages in thread From: Kees Cook @ 2021-03-04 20:00 UTC (permalink / raw) To: Hsuan-Chi Kuo; +Cc: linux-kernel On Thu, Mar 04, 2021 at 01:14:16PM -0600, Hsuan-Chi Kuo wrote: > cc mailing list. > > On 3/4/21 1:10 PM, Hsuan-Chi Kuo wrote: > > Hello, > > > > Should this line be atomic_read(&caller->seccomp.filter_count)); > > > > https://elixir.bootlin.com/linux/latest/source/kernel/seccomp.c#L600 > > > > I think the desired behavior is to synchronize the filter count. Yecch. Yeah, that's a bug. Thanks for noticing that! Can you send a patch to fix it? -- Kees Cook ^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-03-04 19:14 ` Possible bug kernel/seccomp.c Hsuan-Chi Kuo
2021-03-04 20:00 ` Kees Cook
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