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| author |   Jens Axboe <axboe@kernel.dk> | 2020-08-10 10:55:56 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-08-10 15:19:25 -0600 |
| commit | 51a4cc112c7a42b62a91bcccdfac42e7c4561729 (patch) | |
| tree | fbfda9835f2911513296c0f11ad532b3ee2de599 /net/unix/af_unix.c | |
| parent | io_uring: add missing REQ_F_COMP_LOCKED for nested requests (diff) | |
| download | wireguard-linux-51a4cc112c7a42b62a91bcccdfac42e7c4561729.tar.xz wireguard-linux-51a4cc112c7a42b62a91bcccdfac42e7c4561729.zip | |
io_uring: defer file table grabbing request cleanup for locked requests
If we're in the error path failing links and we have a link that has
grabbed a reference to the fs_struct, then we cannot safely drop our
reference to the table if we already hold the completion lock. This
adds a hardirq dependency to the fs_struct->lock, which it currently
doesn't have.
Defer the final cleanup and free of such requests to avoid adding this
dependency.
Reported-by: syzbot+ef4b654b49ed7ff049bf@syzkaller.appspotmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions