Module Name: src Committed By: christos Date: Thu Apr 17 15:57:41 UTC 2014
Modified Files: src/sys/ufs/lfs: lfs_syscalls.c Log Message: CID/1203190: Fix NULL deref To generate a diff of this commit: cvs rdiff -u -r1.153 -r1.154 src/sys/ufs/lfs/lfs_syscalls.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/ufs/lfs/lfs_syscalls.c diff -u src/sys/ufs/lfs/lfs_syscalls.c:1.153 src/sys/ufs/lfs/lfs_syscalls.c:1.154 --- src/sys/ufs/lfs/lfs_syscalls.c:1.153 Wed Apr 9 18:44:15 2014 +++ src/sys/ufs/lfs/lfs_syscalls.c Thu Apr 17 11:57:41 2014 @@ -1,4 +1,4 @@ -/* $NetBSD: lfs_syscalls.c,v 1.153 2014/04/09 22:44:15 riastradh Exp $ */ +/* $NetBSD: lfs_syscalls.c,v 1.154 2014/04/17 15:57:41 christos Exp $ */ /*- * Copyright (c) 1999, 2000, 2001, 2002, 2003, 2007, 2007, 2008 @@ -61,7 +61,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: lfs_syscalls.c,v 1.153 2014/04/09 22:44:15 riastradh Exp $"); +__KERNEL_RCSID(0, "$NetBSD: lfs_syscalls.c,v 1.154 2014/04/17 15:57:41 christos Exp $"); #ifndef LFS # define LFS /* for prototypes in syscallargs.h */ @@ -754,7 +754,8 @@ lfs_bmapv(struct proc *p, fsid_t *fsidp, } numrefed++; } else { - mutex_exit(vp->v_interlock); + if (vp != null) + mutex_exit(vp->v_interlock); mutex_exit(&ulfs_ihash_lock); /* * Don't VFS_VGET if we're being unmounted,