ACK: [SRU][Q][PATCH 0/1] CVE-2026-53049

[Edoardo Canepa]

Acked-by: Edoardo Canepa <edoardo.canepa at canonical.com>

On 7/17/26 01:03, Cengiz Can via kernel-team wrote:
> https://ubuntu.com/security/CVE-2026-53049
>
> [ Impact ]
>
> In gfs2, the log daemon function gfs2_logd() calls the log flushing functions
> gfs2_ail1_start(), gfs2_ail1_wait(), and gfs2_ail1_empty() without holding
> sdp->sd_log_flush_lock. These functions require exclusion against concurrent
> transactions, so calling them without the lock can lead to race conditions and
> filesystem corruption. This missing locking can result in data integrity issues
> on gfs2 filesystems.
>
> [ Fix ]
>
> questing: clean cherry-pick
>
> [ Test Plan ]
>
> Boot tested.
>
> [ Where Problems Could Occur ]
>
> A regression in this fix could introduce lock contention or deadlocks in the
> gfs2 logging path, potentially affecting the performance or stability of gfs2
> filesystems under heavy transaction load.
>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: OpenPGP_0x20F88172E14F6784.asc
Type: application/pgp-keys
Size: 3167 bytes
Desc: OpenPGP public key
URL: <https://lists.ubuntu.com/archives/kernel-team/attachments/20260729/9c1c399e/attachment-0001.key>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: OpenPGP_signature.asc
Type: application/pgp-signature
Size: 840 bytes
Desc: OpenPGP digital signature
URL: <https://lists.ubuntu.com/archives/kernel-team/attachments/20260729/9c1c399e/attachment-0001.sig>