[ubuntu/focal-security] linux 5.4.0-163.180 (Accepted)

[Andy Whitcroft]

linux (5.4.0-163.180) focal; urgency=medium

  * focal/linux: 5.4.0-163.180 -proposed tracker (LP: #2034247)

  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts

  * CVE-2023-40283
    - Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_ready_cb

  * CVE-2023-20588
    - x86/bugs: Increase the x86 bugs vector size to two u32s
    - x86/CPU/AMD: Do not leak quotient data after a division by 0
    - x86/CPU/AMD: Fix the DIV(0) initial fix attempt

  * CVE-2023-4128
    - net/sched: cls_u32: No longer copy tcf_result on update to avoid use-after-
      free
    - net/sched: cls_fw: No longer copy tcf_result on update to avoid use-after-
      free
    - net/sched: cls_route: No longer copy tcf_result on update to avoid use-
      after-free

Date: 2023-09-05 13:16:15.854885+00:00
Changed-By: Thadeu Lima de Souza Cascardo <thadeu.cascardo at canonical.com>
Signed-By: Andy Whitcroft <apw at canonical.com>
https://launchpad.net/ubuntu/+source/linux/5.4.0-163.180
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