The patch titled
autofs4: detect invalid direct mount requests
has been added to the -mm tree. Its filename is
autofs4-detect-invalid-direct-mount-requests.patch
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See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: autofs4: detect invalid direct mount requests
From: Ian Kent <raven@xxxxxxxxxx>
autofs v5 direct and offset mounts within an autofs filesystem are
triggered by existing autofs triger mounts so the mount point dentry must
be positive. If the mount point dentry is negative then the trigger
doesn't exist so we can return fail immediately.
Signed-off-by: Ian Kent <raven@xxxxxxxxxx>
Cc: Jeff Moyer <jmoyer@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/autofs4/waitq.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN fs/autofs4/waitq.c~autofs4-detect-invalid-direct-mount-requests fs/autofs4/waitq.c
--- a/fs/autofs4/waitq.c~autofs4-detect-invalid-direct-mount-requests
+++ a/fs/autofs4/waitq.c
@@ -328,6 +328,10 @@ int autofs4_wait(struct autofs_sb_info *
if (sbi->catatonic)
return -ENOENT;
+ if (!dentry->d_inode &&
+ (sbi->type & (AUTOFS_TYPE_DIRECT | AUTOFS_TYPE_OFFSET)))
+ return -ENOENT;
+
name = kmalloc(NAME_MAX + 1, GFP_KERNEL);
if (!name)
return -ENOMEM;
_
Patches currently in -mm which might be from raven@xxxxxxxxxx are
autofs4-dont-make-expiring-dentry-negative.patch
autofs4-dont-make-expiring-dentry-negative-fix.patch
autofs4-revert-redo-lookup-in-ttfd.patch
autofs4-use-look-aside-list-for-lookups.patch
autofs4-use-look-aside-list-for-lookups-autofs4-fix-symlink-name-allocation.patch
autofs4-dont-release-directory-mutex-if-called-in-oz_mode.patch
autofs4-use-lookup-intent-flags-to-trigger-mounts.patch
autofs4-use-struct-qstr-in-waitqc.patch
autofs4-fix-waitq-locking.patch
autofs4-fix-pending-mount-race.patch
autofs4-fix-pending-mount-race-fix.patch
autofs4-check-kernel-communication-pipe-is-valid-for-write.patch
autofs4-fix-waitq-memory-leak.patch
autofs4-detect-invalid-direct-mount-requests.patch
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