A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-25 22:23:14 -04:00
Code Issues Projects Releases Packages Wiki Activity

io_uring: Fix corrupted user_data

Browse source 
There is a bug, where failed linked requests are returned not with
specified @user_data, but with garbage from a kernel stack.

The reason is that io_fail_links() uses req->user_data, which is
uninitialised when called from io_queue_sqe() on fail path.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2019-10-25 12:31:29 +03:00 • committed by Jens Axboe
commit 84d55dc5b9
1 changed files with 2 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

2
fs/io_uring.c
View file

@ -2448,6 +2448,8 @@ err:
return;
}
req->user_data = s->sqe->user_data;
/*
* If we already have a head request, queue this one for async
* submittal once the head completes. If we don't have a head but