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authorAl Viro <viro@zeniv.linux.org.uk>2015-05-08 22:53:15 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2015-05-09 00:12:48 -0400
commitf15133df088ecadd141ea1907f2c96df67c729f0 (patch)
tree3819082e853fffcae791d12616967964ca56733a
parent766c4cbfacd8634d7580bac6a1b8456e63de3e84 (diff)
path_openat(): fix double fput()
path_openat() jumps to the wrong place after do_tmpfile() - it has already done path_cleanup() (as part of path_lookupat() called by do_tmpfile()), so doing that again can lead to double fput(). Cc: stable@vger.kernel.org # v3.11+ Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/namei.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/namei.c b/fs/namei.c
index f67cf6c..fe30d3b 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3233,7 +3233,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
if (unlikely(file->f_flags & __O_TMPFILE)) {
error = do_tmpfile(dfd, pathname, nd, flags, op, file, &opened);
- goto out;
+ goto out2;
}
error = path_init(dfd, pathname, flags, nd);
@@ -3263,6 +3263,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
}
out:
path_cleanup(nd);
+out2:
if (!(opened & FILE_OPENED)) {
BUG_ON(!error);
put_filp(file);