APPLIED[N:hwe-6.17]: [SRU][Q][PATCH 0/1] CVE-2026-53151

[Edoardo Canepa]

Applied to n:linux/hwe-6.17-next. Thanks.

On 7/17/26 05:33, Cengiz Can via kernel-team wrote:
> https://ubuntu.com/security/CVE-2026-53151
>
> [ Impact ]
>
> AF_RXRPC assumes it can call skb_condense() and then validly access the SACK
> table as a flat buffer directly from skb->data, but skb_condense() can silently
> fail to do anything under some circumstances. This leads to modification of the
> received skbuff in rxrpc_input_soft_acks() and a potential incorrect access of
> the buffer in a fragmented UDP packet when AF_RXRPC extracts the contents of
> the SACK table. A deliberately pre-generated fragmented packet could trigger
> the incorrect buffer access.
>
> [ Fix ]
>
> questing: clean cherry-pick
>
> [ Test Plan ]
>
> Boot tested.
>
> [ Where Problems Could Occur ]
>
> A regression in this fix could affect the rxrpc networking subsystem,
> potentially causing incorrect ACK processing or misparsing of SACK tables in
> AF_RXRPC connections used by AFS clients.
>
-------------- 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/20260730/18a0bd85/attachment.sig>