ACK: [SRU][Jammy-OEM-5.17/OEM-6.0][PATCH 0/1] CVE-2023-31436

Roxana Nicolescu roxana.nicolescu at canonical.com
Thu Aug 3 11:35:39 UTC 2023


On 31/07/2023 21:26, Yuxuan Luo wrote:
> [Impact]
> When the MTU of the loopback device feeds a large number, net/sched/sch_qfq.c
> allows a out-of-bounds read/write error, detriment system's integrity.
>
> [Backport]
> It is a clean cherry pick.
>
> [Test]
> Compile and smoke tested via modprobe and rmmod the sch_fq module.
>
> [Potential Regression]
> Expecting little regression potential since the patch only adds an additional
> layer of checking without manipulating the memory.
>
> Gwangun Jung (1):
>    net: sched: sch_qfq: prevent slab-out-of-bounds in qfq_activate_agg
>
>   net/sched/sch_qfq.c | 13 +++++++------
>   1 file changed, 7 insertions(+), 6 deletions(-)
>
Acked-by: Roxana Nicolescu <roxana.nicolescu at canonical.com>



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