Date: Thu, 22 Mar 2012 09:42:28 +0000 (UTC) From: Sergey Kandaurov <pluknet@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r233296 - head/lib/libc/gen Message-ID: <201203220942.q2M9gSvv017339@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: pluknet Date: Thu Mar 22 09:42:27 2012 New Revision: 233296 URL: http://svn.freebsd.org/changeset/base/233296 Log: Prevent fs_file NULL pointer dereference in fixfsfile() uncovered after r1.5 when passing damaged user-supplied fstab file data. MFC after: 1 week Modified: head/lib/libc/gen/fstab.c Modified: head/lib/libc/gen/fstab.c ============================================================================== --- head/lib/libc/gen/fstab.c Thu Mar 22 09:29:07 2012 (r233295) +++ head/lib/libc/gen/fstab.c Thu Mar 22 09:42:27 2012 (r233296) @@ -91,7 +91,7 @@ fixfsfile() struct stat sb; struct statfs sf; - if (strcmp(_fs_fstab.fs_file, "/") != 0) + if (_fs_fstab.fs_file != NULL &&strcmp(_fs_fstab.fs_file, "/") != 0) return; if (statfs("/", &sf) != 0) return;
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201203220942.q2M9gSvv017339>