Messages in this thread Patch in this message | | | Date | Fri, 16 Apr 2004 22:08:28 +0100 | From | Dave Jones <> | Subject | fix __exit_mm() dereference before check. |
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From a quick look, it appears passing NULL mm's down to mm_release() isn't a good idea.
Dave
--- linux-2.6.5/kernel/exit.c~ 2004-04-16 22:06:00.000000000 +0100 +++ linux-2.6.5/kernel/exit.c 2004-04-16 22:06:51.000000000 +0100 @@ -482,9 +482,10 @@ { struct mm_struct *mm = tsk->mm; - mm_release(tsk, mm); if (!mm) return; + mm_release(tsk, mm); + /* * Serialize with any possible pending coredump. * We must hold mmap_sem around checking core_waiters - 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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