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Message-ID: <CALCETrWTS=z7ZD78JppwbXJKo7HA3xTJYQS=DXLbw5bNyUA_3g@mail.gmail.com> Date: Tue, 22 Jul 2014 15:27:59 -0700 From: Andy Lutomirski <luto@...capital.net> To: Kamal Mostafa <kamal@...onical.com> Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, stable <stable@...r.kernel.org>, kernel-team@...ts.ubuntu.com, Roland McGrath <roland@...hat.com>, "H. Peter Anvin" <hpa@...ux.intel.com> Subject: Re: [PATCH 3.8 106/116] x86_32, entry: Do syscall exit work on badsys (CVE-2014-4508) On Tue, Jul 22, 2014 at 3:21 PM, Kamal Mostafa <kamal@...onical.com> wrote: > 3.8.13.27 -stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Andy Lutomirski <luto@...capital.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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