APPLIED: [SRU][O/N/J/F][PATCH 0/1] CVE-2024-53164

[Mehmet Basaran]

Ian Whitfield <ian.whitfield at canonical.com> writes:

> [Impact]
>
> Changes to sch->q.qlen around qdisc_tree_reduce_backlog() need to happen
> _before_ a call to said function because otherwise it may fail to notify
> parent qdiscs when the child is about to become empty.
>
> [Backport]
>
> The patch was applied cleanly.
>
> [Fix]
>
> Oracular:	backport
> Noble:		backport
> Jammy:		backport
> Focal:		backport
> Bionic: 	sent to ESM ML
> Xenial:		not affected
>
> [Test Case]
>
> Compile and boot tested
>
> [Where problems could occur]
>
> This fix affects those who use CAKE or CHOKe for network scheduling. An
> issue with this fix would be visible to the user via unexpected network
> behavior or potentially a use-after-free.
>
> Lion Ackermann (1):
>   net: sched: fix ordering of qlen adjustment
>
>  net/sched/sch_cake.c  | 2 +-
>  net/sched/sch_choke.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> -- 
> 2.43.0
>
>
> -- 
> kernel-team mailing list
> kernel-team at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team
Applied to oracular:linux, noble:linux, jammy:linux, focal:linux master-next branches. Thanks!
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