Date: Thu, 05 Jan 2012 05:33:47 -1000 From: akuster <akuster@...sta.com> To: Petr Matousek <pmatouse@...hat.com> CC: oss-security@...ts.openwall.com Subject: Re: CVE Request -- kernel: futex: clear robust_list on execve Could it be said that this issue was introduced by these two commits in 2.6.16 ? 0771dfefc9e538f077d0b43b6dec19a5a67d0e70 34f192c6527f20c47ccec239e7d51a27691b93fc - Armin On 01/04/2012 12:10 PM, Petr Matousek wrote: > Move "exit_robust_list" into mm_release() and clear them > > We don't want to get rid of the futexes just at exit() time, we want to > drop them when doing an execve() too, since that gets rid of the > previous VM image too. > > Doing it at mm_release() time means that we automatically always do it > when we disassociate a VM map from the task. > > Upstream patches: > 8141c7f3e7aee618312fa1c15109e1219de784a7 > fc6b177dee33365ccb29fe6d2092223cf8d679f9 > > Reference: > https://bugzilla.redhat.com/show_bug.cgi?id=771764 >
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