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| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2019-01-01 18:54:26 +0900 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2019-01-02 18:28:37 +0100 |
| commit | 125892edfe69915a227d8d125ff0e1cd713178f4 (patch) | |
| tree | 0293f1361d4c062211c3ce777806ee6c986add4c | |
| parent | 8e143b90e4d45cca3dc53760d3cfab988bc74571 (diff) | |
| download | linux-125892edfe69915a227d8d125ff0e1cd713178f4.tar.gz linux-125892edfe69915a227d8d125ff0e1cd713178f4.tar.bz2 linux-125892edfe69915a227d8d125ff0e1cd713178f4.zip | |
inotify: Fix fd refcount leak in inotify_add_watch().
Commit 4d97f7d53da7dc83 ("inotify: Add flag IN_MASK_CREATE for
inotify_add_watch()") forgot to call fdput() before bailing out.
Fixes: 4d97f7d53da7dc83 ("inotify: Add flag IN_MASK_CREATE for inotify_add_watch()")
CC: stable@vger.kernel.org
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
| -rw-r--r-- | fs/notify/inotify/inotify_user.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index 105576daca4a..798f1253141a 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -724,8 +724,10 @@ SYSCALL_DEFINE3(inotify_add_watch, int, fd, const char __user *, pathname, return -EBADF; /* IN_MASK_ADD and IN_MASK_CREATE don't make sense together */ - if (unlikely((mask & IN_MASK_ADD) && (mask & IN_MASK_CREATE))) - return -EINVAL; + if (unlikely((mask & IN_MASK_ADD) && (mask & IN_MASK_CREATE))) { + ret = -EINVAL; + goto fput_and_out; + } /* verify that this is indeed an inotify instance */ if (unlikely(f.file->f_op != &inotify_fops)) { |