Bug 2297561 (CVE-2024-40977) - CVE-2024-40977 kernel: wifi: mt76: mt7921s: fix potential hung tasks during chip recovery
Summary: CVE-2024-40977 kernel: wifi: mt76: mt7921s: fix potential hung tasks during c...
Keywords:
Status: NEW
Alias: CVE-2024-40977
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-07-12 13:44 UTC by OSIDB Bzimport
Modified: 2024-11-07 15:10 UTC (History)
4 users (show)

Fixed In Version: kernel 6.1.96, kernel 6.6.36, kernel 6.9.7, kernel 6.10-rc1
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2024:7043 0 None None None 2024-09-24 09:43:09 UTC
Red Hat Product Errata RHBA-2024:7198 0 None None None 2024-09-26 09:50:49 UTC
Red Hat Product Errata RHBA-2024:7236 0 None None None 2024-09-26 14:33:22 UTC
Red Hat Product Errata RHBA-2024:7637 0 None None None 2024-10-03 14:45:56 UTC
Red Hat Product Errata RHBA-2024:8227 0 None None None 2024-10-17 06:46:00 UTC
Red Hat Product Errata RHBA-2024:9014 0 None None None 2024-11-07 15:10:49 UTC
Red Hat Product Errata RHSA-2024:7000 0 None None None 2024-09-24 02:34:33 UTC
Red Hat Product Errata RHSA-2024:7001 0 None None None 2024-09-24 00:39:15 UTC
Red Hat Product Errata RHSA-2024:8617 0 None None None 2024-10-30 01:26:41 UTC

Description OSIDB Bzimport 2024-07-12 13:44:43 UTC
In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7921s: fix potential hung tasks during chip recovery

During chip recovery (e.g. chip reset), there is a possible situation that
kernel worker reset_work is holding the lock and waiting for kernel thread
stat_worker to be parked, while stat_worker is waiting for the release of
the same lock.
It causes a deadlock resulting in the dumping of hung tasks messages and
possible rebooting of the device.

This patch prevents the execution of stat_worker during the chip recovery.

Comment 12 errata-xmlrpc 2024-09-24 00:39:14 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:7001 https://access.redhat.com/errata/RHSA-2024:7001

Comment 13 errata-xmlrpc 2024-09-24 02:34:32 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:7000 https://access.redhat.com/errata/RHSA-2024:7000

Comment 14 errata-xmlrpc 2024-10-30 01:26:39 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:8617 https://access.redhat.com/errata/RHSA-2024:8617


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