APPLIED: [PATCH 0/1] [SRU][Jammy] Revert "net/sched: taprio: make qdisc_leaf() see the per-netdev-queue pfifo child qdiscs"

[Philip Cox]

On Fri, Mar 17, 2023 at 3:15 PM Philip Cox <philip.cox at canonical.com> wrote:

>
> BugLink: https://bugs.launchpad.net/bugs/2009325
>
> SRU Justification:
>
> [Impact]
> This reverts a patch that introduced a possible null pointer dereference.
>
> [Fix]
> The fix is to revert the patch that introduced the error.  This has been
> backported to the 5.15 stable branch upstream, and should be included in
> our jammy build as well.
>
> The upstream commit that does this revert is:
> af7b29b1deaac6da3bb7637f0e263dfab7bfc7a3
>
>
> https://lore.kernel.org/all/20221004220100.1650558-1-vladimir.oltean@nxp.com/
>
> [Test Plan]
> I have tested the scenario listed in the commit message, and verified the
> results.
>
> [Where problems could occur]
> This change reverts a previous commit, and prevents a null pointer
> dereference.  The impact of this should be low.
>
> Vladimir Oltean (1):
>   Revert "net/sched: taprio: make qdisc_leaf() see the per-netdev-queue
>     pfifo child qdiscs"
>
>  net/sched/sch_taprio.c | 8 +++-----
>  1 file changed, 3 insertions(+), 5 deletions(-)
>
> --
> 2.34.1
>
>
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