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| author |   tedu <tedu@openbsd.org> | 2016-07-11 22:36:25 +0000 |
|---|---|---|
| committer | tedu <tedu@openbsd.org> | 2016-07-11 22:36:25 +0000 |
| commit | 77ad037f655f6abb576b1758f10b8096a7f29d57 (patch) | |
| tree | ddf0dbeaa94c59a26ff92d41ac7bcdc50ef8b773 /sys/tmpfs/tmpfs_vfsops.c | |
| parent | Add missing "recvfd" pledge promise: Raf Czlonka reported ssh coredumps (diff) | |
| download | wireguard-openbsd-77ad037f655f6abb576b1758f10b8096a7f29d57.tar.xz wireguard-openbsd-77ad037f655f6abb576b1758f10b8096a7f29d57.zip | |
don't allow mounting with noval owner. panics later.
reported by Tim Newsham at NCC.
ok millert natano
Diffstat (limited to 'sys/tmpfs/tmpfs_vfsops.c')
| -rw-r--r-- | sys/tmpfs/tmpfs_vfsops.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/tmpfs/tmpfs_vfsops.c b/sys/tmpfs/tmpfs_vfsops.c index b0f0e53d799..ff49be01dd8 100644 --- a/sys/tmpfs/tmpfs_vfsops.c +++ b/sys/tmpfs/tmpfs_vfsops.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tmpfs_vfsops.c,v 1.8 2016/01/13 13:01:40 gsoares Exp $ */ +/* $OpenBSD: tmpfs_vfsops.c,v 1.9 2016/07/11 22:36:25 tedu Exp $ */ /* $NetBSD: tmpfs_vfsops.c,v 1.52 2011/09/27 01:10:43 christos Exp $ */ /* @@ -125,6 +125,9 @@ tmpfs_mount(struct mount *mp, const char *path, void *data, error = copyin(data, &args, sizeof(struct tmpfs_args)); if (error) return error; + if (args.ta_root_uid == VNOVAL || args.ta_root_gid == VNOVAL || + args.ta_root_mode == VNOVAL) + return EINVAL; /* Get the memory usage limit for this file-system. */ if (args.ta_size_max < PAGE_SIZE) { |