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| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-03-25 19:36:31 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 15:24:12 +0300 |
| commit | 0853bd6885c2f293d88aaa7f7f1702c959b31680 (patch) | |
| tree | 1adf4c9d9c6857251bfe475d6bb05259ac006d4c /fs | |
| parent | 5b9ac3727e4abb11c9cfbe9c0781fc05dfdd7cfb (diff) | |
| download | linux-0853bd6885c2f293d88aaa7f7f1702c959b31680.tar.xz | |
io_uring: fix memory leak of uid in files registration
commit c86d18f4aa93e0e66cda0e55827cd03eea6bc5f8 upstream.
When there are no files for __io_sqe_files_scm() to process in the
range, it'll free everything and return. However, it forgets to put uid.
Fixes: 08a451739a9b5 ("io_uring: allow sparse fixed file sets")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/accee442376f33ce8aaebb099d04967533efde92.1648226048.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/io_uring.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index ec0b50940405..5fc3a62eae72 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -8130,6 +8130,7 @@ static int __io_sqe_files_scm(struct io_ring_ctx *ctx, int nr, int offset) fput(fpl->fp[i]); } else { kfree_skb(skb); + free_uid(fpl->user); kfree(fpl); } |