Module Name: src
Committed By: hannken
Date: Fri Jul 8 07:44:18 UTC 2022
Modified Files:
src/sys/miscfs/deadfs: dead_vfsops.c
Log Message:
Make dead vfs ops "vfs_statvfs" and "vfs_vptofh" return EOPNOTSUPP.
Both operations may originate from (possible dead) vnodes.
Reported-by: syzbot+eceb203d44457742b...@syzkaller.appspotmail.com
To generate a diff of this commit:
cvs rdiff -u -r1.11 -r1.12 src/sys/miscfs/deadfs/dead_vfsops.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/miscfs/deadfs/dead_vfsops.c
diff -u src/sys/miscfs/deadfs/dead_vfsops.c:1.11 src/sys/miscfs/deadfs/dead_vfsops.c:1.12
--- src/sys/miscfs/deadfs/dead_vfsops.c:1.11 Sat Mar 19 13:53:32 2022
+++ src/sys/miscfs/deadfs/dead_vfsops.c Fri Jul 8 07:44:17 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: dead_vfsops.c,v 1.11 2022/03/19 13:53:32 hannken Exp $ */
+/* $NetBSD: dead_vfsops.c,v 1.12 2022/07/08 07:44:17 hannken Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: dead_vfsops.c,v 1.11 2022/03/19 13:53:32 hannken Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dead_vfsops.c,v 1.12 2022/07/08 07:44:17 hannken Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -60,13 +60,13 @@ struct vfsops dead_vfsops = {
.vfs_unmount = (void *)dead_panic,
.vfs_root = (void *)dead_panic,
.vfs_quotactl = (void *)dead_panic,
- .vfs_statvfs = (void *)dead_panic,
+ .vfs_statvfs = (void *)eopnotsupp,
.vfs_sync = (void *)dead_panic,
.vfs_vget = (void *)dead_panic,
.vfs_loadvnode = (void *)dead_panic,
.vfs_newvnode = dead_newvnode,
.vfs_fhtovp = (void *)dead_panic,
- .vfs_vptofh = (void *)dead_panic,
+ .vfs_vptofh = (void *)eopnotsupp,
.vfs_init = (void *)dead_panic,
.vfs_reinit = (void *)dead_panic,
.vfs_done = (void *)dead_panic,
