From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933939AbbLVWD1 (ORCPT ); Tue, 22 Dec 2015 17:03:27 -0500 Received: from 4.mo4.mail-out.ovh.net ([178.32.98.131]:39398 "EHLO 4.mo4.mail-out.ovh.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752903AbbLVWD0 (ORCPT ); Tue, 22 Dec 2015 17:03:26 -0500 From: =?UTF-8?q?Micka=C3=ABl=20Sala=C3=BCn?= To: linux-kernel@vger.kernel.org Cc: =?UTF-8?q?Micka=C3=ABl=20Sala=C3=BCn?= , Jeff Dike , Richard Weinberger , Linus Torvalds , user-mode-linux-devel@lists.sourceforge.net Subject: [PATCH] um: Fix pointer cast Date: Tue, 22 Dec 2015 21:44:01 +0100 Message-Id: <1450817041-21236-1-git-send-email-mic@digikod.net> X-Mailer: git-send-email 2.6.4 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Ovh-Tracer-Id: 13120956041116035353 X-Ovh-Remote: 94.23.54.103 (ns3096276.ip-94-23-54.eu) X-Ovh-Local: 213.186.33.20 (ns0.ovh.net) X-OVH-SPAMSTATE: OK X-OVH-SPAMSCORE: -100 X-OVH-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeekiedrgeeiucetufdoteggodftvfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeekiedrgeeigddutdelucetufdoteggodftvfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fix a pointer cast typo introduced in v4.4-rc5 especially visible for the i386 subarchitecture where it results in a kernel crash. Fixes: 8090bfd2bb9a ("um: Fix fpstate handling") Signed-off-by: Mickaël Salaün Cc: Jeff Dike Cc: Richard Weinberger Cc: Linus Torvalds --- arch/x86/um/signal.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/um/signal.c b/arch/x86/um/signal.c index e5f854ce2d72..cbb541b80358 100644 --- a/arch/x86/um/signal.c +++ b/arch/x86/um/signal.c @@ -470,7 +470,7 @@ long sys_sigreturn(void) struct sigcontext __user *sc = &frame->sc; int sig_size = (_NSIG_WORDS - 1) * sizeof(unsigned long); - if (copy_from_user(&set.sig[0], (void *)sc->oldmask, sizeof(set.sig[0])) || + if (copy_from_user(&set.sig[0], (void *)&sc->oldmask, sizeof(set.sig[0])) || copy_from_user(&set.sig[1], frame->extramask, sig_size)) goto segfault; -- 2.6.4