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(parent: 3c02192) | patch
io_uring: fix races with file table unregister
authorPavel Begunkov <asml.silence@gmail.com>
Mon, 13 Jun 2022 05:32:44 +0000 (06:32 +0100)
committerPavel Begunkov <asml.silence@gmail.com>
Mon, 13 Jun 2022 08:53:07 +0000 (09:53 +0100)
commit0e73b5f47f09d8cbadc6086aec7afc078e166782
treee13709f00bfd244cca8707cd9475d8be2f697e23tree | snapshot
parent3c02192c8665d03253d7881ec9a7ce59ea141ba7commit | diff
io_uring: fix races with file table unregister

Fixed file table quiesce might unlock ->uring_lock, potentially letting
new requests to be submitted, don't allow those requests to use the
table as they will race with unregistration.

Reported-and-tested-by: van fantasy <g1042620637@gmail.com>
Fixes: 320ac128219a2 ("io_uring: avoid ring quiesce for fixed file set unregister and update")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
fs/io_uring.c diff | blob | history
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