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Message-Id: <1398650449-4587-5-git-send-email-green@linuxhacker.ru> Date: Sun, 27 Apr 2014 22:00:49 -0400 From: Oleg Drokin <green@...uxhacker.ru> To: linux-kernel@...r.kernel.org Cc: Oleg Drokin <green@...uxhacker.ru>, Oleg Drokin <oleg.drokin@...el.com>, Dmitry Eremin <dmitry.eremin@...el.com>, Liang Zhen <liang.zhen@...el.com> Subject: [PATCH v2 4/4] staging/lustre/lnet: fix potential null pointer dereference Pointer 'ni' checked for NULL at line 1569 may be passed to function and may be dereferenced there by passing argument 1 to function 'lnet_ni_notify_locked' at line 1621. found by Klocwork Insight tool Signed-off-by: Oleg Drokin <oleg.drokin@...el.com> CC: Dmitry Eremin <dmitry.eremin@...el.com> CC: Liang Zhen <liang.zhen@...el.com> --- drivers/staging/lustre/lnet/lnet/router.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/lustre/lnet/lnet/router.c b/drivers/staging/lustre/lnet/lnet/router.c index 995f509..926923a 100644 --- a/drivers/staging/lustre/lnet/lnet/router.c +++ b/drivers/staging/lustre/lnet/lnet/router.c @@ -145,7 +145,7 @@ lnet_ni_notify_locked(lnet_ni_t *ni, lnet_peer_t *lp) * NB individual events can be missed; the only guarantee is that you * always get the most recent news */ - if (lp->lp_notifying) + if (lp->lp_notifying || ni == NULL) return; lp->lp_notifying = 1; -- 1.9.0 -- 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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