From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jes.Sorensen@redhat.com Subject: [PATCH 04/19] sysfs_unique_holder(): Check read() return value before using as buffer index Date: Tue, 1 Nov 2011 16:09:20 +0100 Message-ID: <1320160175-18976-5-git-send-email-Jes.Sorensen@redhat.com> References: <1320160175-18976-1-git-send-email-Jes.Sorensen@redhat.com> Return-path: In-Reply-To: <1320160175-18976-1-git-send-email-Jes.Sorensen@redhat.com> Sender: linux-raid-owner@vger.kernel.org To: neilb@suse.de Cc: linux-raid@vger.kernel.org, dledford@redhat.com List-Id: linux-raid.ids From: Jes Sorensen Signed-off-by: Jes Sorensen --- sysfs.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/sysfs.c b/sysfs.c index 05f0118..10e1597 100644 --- a/sysfs.c +++ b/sysfs.c @@ -804,6 +804,8 @@ int sysfs_unique_holder(int devnum, long rdev) } n = read(fd, buf, sizeof(buf)-1); close(fd); + if (n < 0) + continue; buf[n] = 0; if (sscanf(buf, "%d:%d%c", &mj, &mn, &c) != 3 || c != '\n') { -- 1.7.6.4