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| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-12-19 15:11:40 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-31 13:33:12 +0100 |
| commit | f9ef51a7055cb1abd4b58d2a8fcb87db0a58ccf2 (patch) | |
| tree | 2ae2f5dfba545178ff02b8742e06b0ff65a0653b /io_uring | |
| parent | b87006265a1649e96e77f454e7dc47c22333635a (diff) | |
| download | linux-stable-f9ef51a7055cb1abd4b58d2a8fcb87db0a58ccf2.tar.gz linux-stable-f9ef51a7055cb1abd4b58d2a8fcb87db0a58ccf2.tar.bz2 linux-stable-f9ef51a7055cb1abd4b58d2a8fcb87db0a58ccf2.zip | |
io_uring/net: fix cleanup after recycle
commit 6c3e8955d4bd9811a6e1761eea412a14fb51a2e6 upstream.
Don't access io_async_msghdr io_netmsg_recycle(), it may be reallocated.
Cc: stable@vger.kernel.org
Fixes: 9bb66906f23e5 ("io_uring: support multishot in recvmsg")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9e326f4ad4046ddadf15bf34bf3fa58c6372f6b5.1671461985.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 'io_uring')
| -rw-r--r-- | io_uring/net.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/io_uring/net.c b/io_uring/net.c index d19763d444a0..bdd2b4e370b3 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -806,10 +806,10 @@ retry_multishot: goto retry_multishot; if (mshot_finished) { - io_netmsg_recycle(req, issue_flags); /* fast path, check for non-NULL to avoid function call */ if (kmsg->free_iov) kfree(kmsg->free_iov); + io_netmsg_recycle(req, issue_flags); req->flags &= ~REQ_F_NEED_CLEANUP; } |