ACK: [UBUNTU OEM-5.7 0/1] CVE-2022-2590

[Andrei Gherzan]

On 23/04/04 10:55AM, Thadeu Lima de Souza Cascardo wrote:
> [Impact]
> Attackers can write to shmem files (on tmpfs, for example) without having write permissions.
> 
> [Fix]
> The upstream fix is not appropriate to 5.17 and the suggestion was to revert the offending commit.
> 
> [Test case]
> PoC was tested and stopped working with the revert applied.
> 
> Thadeu Lima de Souza Cascardo (1):
>   UBUNTU: SAUCE: Revert "mm/shmem: unconditionally set pte dirty in
>     mfill_atomic_install_pte"
> 
>  mm/shmem.c       | 1 +
>  mm/userfaultfd.c | 3 ++-
>  2 files changed, 3 insertions(+), 1 deletion(-)
> 
> -- 
> 2.34.1
> 
> 
> -- 
> kernel-team mailing list
> kernel-team at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team

Acked-by: Andrei Gherzan <andrei.gherzan at canonical.com>

-- 
Andrei Gherzan
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <https://lists.ubuntu.com/archives/kernel-team/attachments/20230405/973985cc/attachment.sig>