ACK: [SRU H/I/OEM-5.10 0/1] CVE-2021-41073

Tim Gardner tim.gardner at canonical.com
Mon Sep 20 13:47:21 UTC 2021


Acked-by: Tim Gardner <tim.gardner at canonical.com>

On 9/20/21 7:33 AM, Thadeu Lima de Souza Cascardo wrote:
> [Impact]
> A vulnerability on io_uring was found and it might lead to local
> privilege escalation.
> 
> [Test case]
> A small test case that leads to a crashed kernel was tested and the fixed
> versions did not crash after many runs on a loop.
> 
> 5.11 and 5.13 were tested.
> 
> [Potential regressions]
> Programs that use io_uring might fail to read or write some files.
> 
> Jens Axboe (1):
>    io_uring: ensure symmetry in handling iter types in loop_rw_iter()
> 
>   fs/io_uring.c | 9 ++++++---
>   1 file changed, 6 insertions(+), 3 deletions(-)
> 

-- 
-----------
Tim Gardner
Canonical, Inc



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