diff options
| author |   kettenis <kettenis@openbsd.org> | 2016-07-22 09:54:09 +0000 |
|---|---|---|
| committer | kettenis <kettenis@openbsd.org> | 2016-07-22 09:54:09 +0000 |
| commit | e4b56cf059f99a955f4d97ca2e693a5563d26163 (patch) | |
| tree | 9a0aae937ffdb9074982b71ded955660a5725564 /sys/kern/vfs_subr.c | |
| parent | add a regression test (diff) | |
| download | wireguard-openbsd-e4b56cf059f99a955f4d97ca2e693a5563d26163.tar.xz wireguard-openbsd-e4b56cf059f99a955f4d97ca2e693a5563d26163.zip | |
Prevent NULL-pointer call for filesystems that don't provide vfs_sysctl
in their vfsops.
Issue reported by Tim Newsham.
ok claudio@, natano@
Diffstat (limited to 'sys/kern/vfs_subr.c')
| -rw-r--r-- | sys/kern/vfs_subr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c index 7411a924724..661b5de0597 100644 --- a/sys/kern/vfs_subr.c +++ b/sys/kern/vfs_subr.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vfs_subr.c,v 1.248 2016/06/19 11:54:33 natano Exp $ */ +/* $OpenBSD: vfs_subr.c,v 1.249 2016/07/22 09:54:09 kettenis Exp $ */ /* $NetBSD: vfs_subr.c,v 1.53 1996/04/22 01:39:13 christos Exp $ */ /* @@ -1290,7 +1290,7 @@ vfs_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, if (vfsp->vfc_typenum == name[0]) break; - if (vfsp == NULL) + if (vfsp == NULL || vfsp->vfc_vfsops->vfs_sysctl == NULL) return (EOPNOTSUPP); return ((*vfsp->vfc_vfsops->vfs_sysctl)(&name[1], namelen - 1, |