Messages in this thread | | | Date | Sat, 9 Aug 2003 03:46:55 +0200 (CEST) | From | Andreas Gruenbacher <> | Subject | Re: [PATCH] 2.4: Fix steal_locks race |
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Hello,
thanks a lot for analyzing this. Please see the patch I just posted unter the subject:
[PATCH] 2.4.22-rc2 steal_locks and load_elf_binary cleanups
That patch fixes the bug in a slightly cleaner way.
On Sat, 9 Aug 2003, Herbert Xu wrote:
> On Fri, Aug 08, 2003 at 08:53:21PM +1000, herbert wrote: > > > > The steal_locks() call in binfmt_elf.c is buggy. It steals locks from > > a files entry whose reference was dropped much earlier. This allows it > > to steal other process's locks.
This makes sense.
> > The following patch calls steal_locks() earlier so that this does not > > happen. > > My patch is buggy too. If a file is closed by another clone between > the two steal_locks calls the lock will again be lost. Fortunately > this much harder to trigger than the previous bug. > > The following patch fixes that. > - 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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