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| author | Ian Kent <raven@themaw.net> | 2008-05-01 04:35:07 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-01 08:04:01 -0700 |
| commit | cab0936aac8aa907c6bb814c2cf26385478f254b (patch) | |
| tree | 7f0bcb8838f9cc2fd461a6468464042c6b94e987 /fs | |
| parent | afec570c32a0d116e3c68af583ed1d11110f12fc (diff) | |
| download | lwn-cab0936aac8aa907c6bb814c2cf26385478f254b.tar.gz lwn-cab0936aac8aa907c6bb814c2cf26385478f254b.zip | |
autofs4: check for invalid dentry in getpath
Catch invalid dentry when calculating its path.
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/autofs4/waitq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c index 1fe28e4754c2..75e5955c3f6d 100644 --- a/fs/autofs4/waitq.c +++ b/fs/autofs4/waitq.c @@ -171,7 +171,7 @@ static int autofs4_getpath(struct autofs_sb_info *sbi, for (tmp = dentry ; tmp != root ; tmp = tmp->d_parent) len += tmp->d_name.len + 1; - if (--len > NAME_MAX) { + if (!len || --len > NAME_MAX) { spin_unlock(&dcache_lock); return 0; } |