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 Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** 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 -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html