Messages in this thread | | | Date | Wed, 3 Oct 2007 15:26:01 +0100 | From | Al Viro <> | Subject | Re: [bug] crash when reading /proc/mounts (was: Re: Linux 2.6.23-rc9 and a heads-up for the 2.6.24 series..) |
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On Wed, Oct 03, 2007 at 04:08:42PM +0200, Ingo Molnar wrote: > > Charming... So we get d_path() either returning junk or we get > > something that isn't NUL-terminated. Which one it is? I.e. what does > > p look like and what's in s? > > could be use-after-free as well, as CONFIG_PAGEALLOC was enabled.
Umm... d_path() had just written there, so use-after-free is not too likely to trigger page fault on read immediately afterwards - you'd need a pretty tight race to hit it. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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