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| author |   millert <millert@openbsd.org> | 2016-07-12 20:53:04 +0000 |
|---|---|---|
| committer | millert <millert@openbsd.org> | 2016-07-12 20:53:04 +0000 |
| commit | af6e7e676d78fe5bfc2de55f9855af03ae424149 (patch) | |
| tree | 4f4110330863764919067915f455a5ab1f3a73ab | |
| parent | Turn ahci(4) glue code for the i.MX6 platform into its own imxahci(4) driver (diff) | |
| download | wireguard-openbsd-af6e7e676d78fe5bfc2de55f9855af03ae424149.tar.xz wireguard-openbsd-af6e7e676d78fe5bfc2de55f9855af03ae424149.zip | |
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@
| -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)); } /* |