diff options
| author | Todd C. Miller <millert@cvs.openbsd.org> | 2016-07-12 20:53:05 +0000 |
|---|---|---|
| committer | Todd C. Miller <millert@cvs.openbsd.org> | 2016-07-12 20:53:05 +0000 |
| commit | 22620b9e9e7760953f3ae0e04859aa8ca22803f0 (patch) | |
| tree | 714f6a63c1747457e44f2c8699bc6b65d6cc16ee /sys | |
| parent | 704bc3c73befbc19842e024a57a8a769a869315e (diff) | |
The only valid flag for unmount(2) is MNT_FORCE, ignore any others.
Fixes a crash when MNT_DOOMED is passed in the flags to unmount(2)
found by NCC Group. OK bluhm@
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/kern/vfs_syscalls.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c index 1b01622dbac..0bb23b084a0 100644 --- a/sys/kern/vfs_syscalls.c +++ b/sys/kern/vfs_syscalls.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vfs_syscalls.c,v 1.261 2016/07/06 19:26:35 millert Exp $ */ +/* $OpenBSD: vfs_syscalls.c,v 1.262 2016/07/12 20:53:04 millert Exp $ */ /* $NetBSD: vfs_syscalls.c,v 1.71 1996/04/23 10:29:02 mycroft Exp $ */ /* @@ -412,7 +412,7 @@ sys_unmount(struct proc *p, void *v, register_t *retval) if (vfs_busy(mp, VB_WRITE|VB_WAIT)) return (EBUSY); - return (dounmount(mp, SCARG(uap, flags), p, vp)); + return (dounmount(mp, SCARG(uap, flags) & MNT_FORCE, p, vp)); } /* |