The patch below does not apply to the 3.14-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From f15133df088ecadd141ea1907f2c96df67c729f0 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: Fri, 8 May 2015 22:53:15 -0400
Subject: [PATCH] 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@xxxxxxxxxxxxxxx # v3.11+
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
diff --git a/fs/namei.c b/fs/namei.c
index f67cf6cef986..fe30d3be43a8 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);
--
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