| From | Andy Lutomirski <> | Date | Tue, 22 Jul 2014 15:27:59 -0700 | Subject | Re: [PATCH 3.8 106/116] x86_32, entry: Do syscall exit work on badsys (CVE-2014-4508) |
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On Tue, Jul 22, 2014 at 3:21 PM, Kamal Mostafa <kamal@canonical.com> wrote: > 3.8.13.27 -stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Andy Lutomirski <luto@amacapital.net> > > commit 554086d85e71f30abe46fc014fea31929a7c6a8a upstream. > > The bad syscall nr paths are their own incomprehensible route > through the entry control flow. Rearrange them to work just like > syscalls that return -ENOSYS. > > This fixes an OOPS in the audit code when fast-path auditing is > enabled and sysenter gets a bad syscall nr (CVE-2014-4508). > > This has probably been broken since Linux 2.6.27: > af0575bba0 i386 syscall audit fast-path
Don't apply this without:
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?h=x86/urgent&id=8142b215501f8b291a108a202b3a053a265b03dd
Sorry!
--Andy
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