This bug was fixed in the package linux-oem-5.13 - 5.13.0-1012.16
---------------
linux-oem-5.13 (5.13.0-1012.16) focal; urgency=medium
* focal/linux-oem-5.13: 5.13.0-1012.16 -proposed tracker (LP:
#1942861)
* Fix sluggish r8169 by disaling ASPM L1.2 (LP: #1942830)
- SAUCE: r8169: Disable ASPM L1.2
* CVE-2021-3609
- can: bcm: delay release of struct bcm_op after synchronize_rcu()
- can: j1939: j1939_sk_init(): set SOCK_RCU_FREE to call sk_destruct() after
RCU is done
-- Timo Aaltonen <timo.aalto...@canonical.com> Tue, 07 Sep 2021
11:49:54 +0300
** Changed in: linux-oem-5.13 (Ubuntu Focal)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-3609
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https://bugs.launchpad.net/bugs/1938689
Title:
[SRU][H/OEM-5.10/OEM-5.13/U] Fix system hang after unplug tbt dock
Status in HWE Next:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem-5.10 package in Ubuntu:
New
Status in linux-oem-5.13 package in Ubuntu:
Invalid
Status in linux-oem-5.10 source package in Focal:
New
Status in linux-oem-5.13 source package in Focal:
Fix Released
Status in linux source package in Hirsute:
Fix Released
Status in linux source package in Impish:
Incomplete
Bug description:
SRU justification:
[Impact]
System hang after unplug thunderbolt dock with Intel igc lan.
[Fix]
igc driver continue reading and writing MMIO address after PCI device is
unplugged.
This cause system page fault, and system hang.
Add safe check and prevent reading and writing the MMIO.
The patch is in maintainer's tree, but not merged to Linus's tree.
Due to the schedule, send SRU as SAUCE patch.
[Test]
Verified on hardware, after unplug the thunderbolt cable,
system work fine.
[Where problems could occur]
It may break the igc driver.
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