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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2015-05-08 22:53:15 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-05-09 00:12:48 -0400 |
| commit | f15133df088ecadd141ea1907f2c96df67c729f0 (patch) | |
| tree | 3819082e853fffcae791d12616967964ca56733a /fs | |
| parent | namei: d_is_negative() should be checked before ->d_seq validation (diff) | |
| download | linux-dev-f15133df088ecadd141ea1907f2c96df67c729f0.tar.xz linux-dev-f15133df088ecadd141ea1907f2c96df67c729f0.zip | |
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/namei.c | 3 |
1 files changed, 2 insertions, 1 deletions
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); |