5.5

CVE-2024-40977: wifi: mt76: mt7921s: fix potential hung tasks during chip recovery

Modified
AliasesUBUNTU-CVE-2024-40977DEBIAN-CVE-2024-40977
Published 12-07-2024Last modified 11-05-2026

Vulnerability summary

CVE-2024-40977 is a medium (CVSS 5.5) Improper Locking vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 20 · Related 15
DLA-4008-1DSA-5731-1RHSA-2024:7000RHSA-2024:7001RHSA-2024:8617SUSE-SU-2024:2894-1

Timeline

  1. 12-07-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.25% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu125 products
  • linuxAll versions (No fix recorded) | < 6.8.0-44.44
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1015.16
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 7bc04215a66b60e198aecaee8418f6d79fa19faa, < 0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08 | ≥ 7bc04215a66b60e198aecaee8418f6d79fa19faa, < 85edd783f4539a994d66c4c014d5858f490b7a02 | ≥ 7bc04215a66b60e198aecaee8418f6d79fa19faa, < e974dd4c22a23ec3ce579fb6d31a674ac0435da9 | ≥ 7bc04215a66b60e198aecaee8418f6d79fa19faa, < ecf0b2b8a37c8464186620bef37812a117ff6366 | 4.16
  • linux_kernel< 6.1.96 | ≥ 6.2, < 6.6.36 | ≥ 6.7, < 6.9.7
Debian1 product
  • linux< 6.1.99-1 | < 6.9.7-1

3 vendors · 128 products

References

16 links
Show all 16 references