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inotify: Fix fd refcount leak in inotify_add_watch().

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Commit 4d97f7d53d ("inotify: Add flag IN_MASK_CREATE for
inotify_add_watch()") forgot to call fdput() before bailing out.

Fixes: 4d97f7d53d ("inotify: Add flag IN_MASK_CREATE for inotify_add_watch()")
CC: [email protected]
Signed-off-by: Tetsuo Handa <[email protected]>
Reviewed-by: Amir Goldstein <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
This commit is contained in:
Tetsuo Handa 2019-01-01 18:54:26 +09:00 • committed by Jan Kara
commit 125892edfe
1 changed files with 4 additions and 2 deletions
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6
fs/notify/inotify/inotify_user.c
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@ -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)) {