APPLIED[HWE-6.17/J]/Cmnt: [SRU][Q/J][PATCH 0/2] CVE-2026-53086

[Stefan Bader]

On 17/07/2026 13:10, Cengiz Can via kernel-team wrote:
> https://ubuntu.com/security/CVE-2026-53086
> 
> [ Impact ]
> 
> The bcmgenet_timeout handler in the Broadcom GENET Ethernet driver attempts to
> take down all TX queues when a single queue times out. This over zealous
> behavior causes many race conditions with queues that are still actively
> processing traffic. The resulting races can lead to instability in the network
> driver's transmit path.
> 
> [ Fix ]
> 
> questing: clean cherry-pick
> jammy: backported with AI-assisted adaptation
> bionic: backported with AI-assisted adaptation
> 
> [ Test Plan ]
> 
> Boot tested.
> 
> [ Where Problems Could Occur ]
> 
> An incorrect fix could affect the TX path of the bcmgenet Ethernet driver,
> potentially causing dropped packets, stalled transmit queues, or failure to
> recover from a genuine queue timeout.
> 

Applied to noble:linux-hwe-6.17/hwe-6.17-next and 
jammy:linux/master-next. Thanks.

-Stefan
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