Does it abort or silently fail? The latter is CVE-worthy.
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Silently fail. The docs say no errors defined, and my mental model was just a wrapper around pushad, etc, etc. I didn't expect it to go wrong, so tracking down the bug was a nightmare

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Sigprocmask is deprecated, therefore denied by the seccomp policy. The 64 bit version uses the newer rt_sigprocmask.
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It may be deprecated, but it's still used by glibc. I don't think it's okay to break glibc.
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Amazing all the finds you find. A really big thank you from a software user who approves of getting security patches. You're an invisible hero for a lot of users!
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It sounds like a silently fail, but hope there is a comment like ‘to be fixed’, otherwise it will be a real fail
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If it is not verifiable open source it may contain planted bugs on purpose.
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vDSOs are only really used for time-related "syscalls". Signal-related syscalls are definitely "real". Looks much more likely that the default Docker seccomp profile has a bug.
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