From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752742Ab2H3R0d (ORCPT ); Thu, 30 Aug 2012 13:26:33 -0400 Received: from www.linutronix.de ([62.245.132.108]:60890 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751997Ab2H3R0c (ORCPT ); Thu, 30 Aug 2012 13:26:32 -0400 From: Sebastian Andrzej Siewior To: ananth@in.ibm.com Cc: x86@kernel.org, linux-kernel@vger.kernel.org, srikar@linux.vnet.ibm.com, oleg@redhat.com, Sebastian Andrzej Siewior Subject: [PATCH] uprobes: don't put NULL pointer in uprobe_register() Date: Thu, 30 Aug 2012 19:26:22 +0200 Message-Id: <1346347582-20945-1-git-send-email-bigeasy@linutronix.de> X-Mailer: git-send-email 1.7.10.4 X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org alloc_uprobe() might return a NULL pointer, put_uprobe() can't deal with this. Signed-off-by: Sebastian Andrzej Siewior --- kernel/events/uprobes.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index 7b3112c..30f3e23 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -897,7 +897,8 @@ int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer * } mutex_unlock(uprobes_hash(inode)); - put_uprobe(uprobe); + if (uprobe) + put_uprobe(uprobe); return ret; } -- 1.7.10.4