Messages in this thread | | | Date | Wed, 22 Feb 2023 16:25:07 +0200 | From | Vladimir Oltean <> | Subject | Re: [PATCH v2 net 2/2] net/sched: taprio: make qdisc_leaf() see the per-netdev-queue pfifo child qdiscs |
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+Greg, Sasha.
Hi Kurt,
On Wed, Feb 22, 2023 at 03:03:04PM +0100, Kurt Kanzenbach wrote: > This commit was backported to v5.15-LTS which results in NULL pointer > dereferences e.g., when attaching an ETF child qdisc to taprio. > > From what I can see is, that the issue was reported back then and this > commit was reverted [1]. However, the revert didn't make it into > v5.15-LTS? Is there a reason for it? I'm testing 5.15.94-rt59 here. > > Thanks, > Kurt > > [1] - https://lore.kernel.org/all/20221004220100.1650558-1-vladimir.oltean@nxp.com/
You are right; the patchwork-bot clearly says that the revert was applied to net.git as commit af7b29b1deaa ("Revert "net/sched: taprio: make qdisc_leaf() see the per-netdev-queue pfifo child qdiscs""), but the revert never made it to stable.
OTOH, the original patch did make it to, and still is in, linux-stable. I have backport notification emails of the original to 5.4, 5.10, 5.15, 5.19.
Greg, Sasha, can you please pick up and backport commit af7b29b1deaa ("Revert "net/sched: taprio: make qdisc_leaf() see the per-netdev-queue pfifo child qdiscs"") to the currently maintained stable kernels?
Thanks.
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