Messages in this thread | | | Date | Tue, 23 Aug 2011 14:44:30 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] proc: fix races of /proc/PID/{fd/,fdinfo/,fdinfo/*} |
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On Thu, 4 Aug 2011 20:20:09 +0400 Vasiliy Kulikov <segoon@openwall.com> wrote:
> fd* files are restricted to the task's owner, but keeping opened procfs > file descriptors makes it possible to violate the permission model. > Keeping fdinfo/* may disclosure current position and flags, keeping > fdinfo/ and fd/ may disclosure number of opened files. > > Used existing (un)lock_trace functions to deal with the race.
what race.
When fixing a bug, please completely, utterly and exhaustively describe the bug!
> CC: Stable Tree <stable@kernel.org>
And when cc'ing -stable, please make it very clear why you consider the bug sufficiently serious to warant mackporting the fix into earlier kernels.
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