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CVE-2024-40977· NVD / CVE Program· CNA Linux

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

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.24% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08, 85edd783f4539a994d66c4c014d5858f490b7a02, e974dd4c22a23ec3ce579fb6d31a674ac0435da9.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08, 85edd783f4539a994d66c4c014d5858f490b7a02, e974dd4c22a23ec3ce579fb6d31a674ac0435da9 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jul 12, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 14th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-40977

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernelbefore 6.1.96
  • linux linux kernel6.2 and later · before 6.6.36
  • linux linux kernel6.7 and later · before 6.9.7

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.16affected
    • 7bc04215a66b60e198aecaee8418f6d79fa19faa and later · before 0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08affected · git
    • 7bc04215a66b60e198aecaee8418f6d79fa19faa and later · before 85edd783f4539a994d66c4c014d5858f490b7a02affected · git
    • 7bc04215a66b60e198aecaee8418f6d79fa19faa and later · before e974dd4c22a23ec3ce579fb6d31a674ac0435da9affected · git
    • 7bc04215a66b60e198aecaee8418f6d79fa19faa and later · before ecf0b2b8a37c8464186620bef37812a117ff6366affected · git
    • before 4.16not affected · semver
    • 6.1.96 and later · up to and including 6.1.*not affected · semver
    • 6.6.36 and later · up to and including 6.6.*not affected · semver
    • 6.9.7 and later · up to and including 6.9.*not affected · semver
    • 6.10 and laternot affected · original_commit_for_fix

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:9bpftoolbefore 7.3.0-427.42.1.el9_47.3.0-427.42.1.el9_4
AlmaLinux:9kernelbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64kbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-corebefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-debugbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-debug-corebefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-debug-develbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-debug-devel-matchedbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-debug-modulesbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-debug-modules-corebefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-debug-modules-extrabefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-develbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-devel-matchedbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-modulesbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-modules-corebefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-64k-modules-extrabefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-abi-stablelistsbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-corebefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-cross-headersbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-debugbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-debug-corebefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-debug-develbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-debug-devel-matchedbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4
AlmaLinux:9kernel-debug-modulesbefore 5.14.0-427.42.1.el9_45.14.0-427.42.1.el9_4

+96

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-40975Jul 12, 2024 · platform/x86: x86-android-tablets: Unregister devices in reverse order
    22Monitor
  • ← EarlierCVE-2024-40976Jul 12, 2024 · drm/lima: mask irqs in timeout path before hard reset
    22Monitor
  • Later →CVE-2024-40981Jul 12, 2024 · batman-adv: bypass empty buckets in batadv_purge_orig_ref()
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08Vendor (CNA)
Linux Linux85edd783f4539a994d66c4c014d5858f490b7a02Vendor (CNA)
Linux Linuxe974dd4c22a23ec3ce579fb6d31a674ac0435da9Vendor (CNA)
Linux Linuxecf0b2b8a37c8464186620bef37812a117ff6366Vendor (CNA)
almalinux:bpftool7.3.0-427.42.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel5.14.0-427.42.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k5.14.0-427.42.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-core5.14.0-427.42.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug5.14.0-427.42.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-core5.14.0-427.42.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel5.14.0-427.42.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched5.14.0-427.42.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules5.14.0-427.42.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-core5.14.0-427.42.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra5.14.0-427.42.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel5.14.0-427.42.1.el9_4 · AlmaLinux:9Package registry (OSV)
debian:linux6.1.99-1 · Debian:12Package registry (OSV)
red hat:bpftool-debuginfo0:7.3.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-aarch640:5.14.0-427.42.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
rocky linux:kernel0:5.14.0-427.42.1.el9_4 · Rocky Linux:9Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-667 · Improper Locking

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records