From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: =?UTF-8?q?Micka=C3=ABl=20Sala=C3=BCn?= Date: Wed, 23 Dec 2015 14:17:07 +0100 Message-Id: <1450876627-4814-1-git-send-email-mic@digikod.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Sender: linux-kernel-owner@vger.kernel.org Subject: [PATCH v2] um: Fix pointer cast 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, Al Viro List-ID: =46ix a pointer cast typo introduced in v4.4-rc5 especially visible for the i386 subarchitecture where it results in a kernel crash. =46ixes: 8090bfd2bb9a ("um: Fix fpstate handling") Signed-off-by: Micka=C3=ABl Sala=C3=BCn Cc: Jeff Dike Cc: Richard Weinberger Cc: Linus Torvalds Cc: Al Viro --- 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..14fcd01ed992 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 =3D &frame->sc; int sig_size =3D (_NSIG_WORDS - 1) * sizeof(unsigned long); =20 - if (copy_from_user(&set.sig[0], (void *)sc->oldmask, sizeof(set.sig[0= ])) || + if (copy_from_user(&set.sig[0], &sc->oldmask, sizeof(set.sig[0])) || copy_from_user(&set.sig[1], frame->extramask, sig_size)) goto segfault; =20 --=20 2.6.4 -- 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/