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

Type: advisorySources: OSV

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.

Products
Kernel
Affected versions
Not specified
Fixed versions
6.1.96, 6.6.36, 6.9.7
CVEs
CVE-2024-40977
Confirmed fixed CVEs
Not specified
Updated in this feed
8 Nov 2026, 02:58 UTC · Revision 1

Source evidence

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

core-osv · Original source

Published 12 Jul 2024, 12:32 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.

osv:CVE-2024-40977

Kernel

Fixed versions: 6.1.96, 6.6.36, 6.9.7

Complete source record
{
  "id": "2f387acdd50424b075d5d4f26bf129f43816201ace2453f8e5c01231a41fa981",
  "url": "https://osv.dev/vulnerability/CVE-2024-40977",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: mt76: mt7921s: fix potential hung tasks during chip recovery",
    "summary": "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.",
    "evidence": "osv:CVE-2024-40977",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.96",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.36",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.9.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-40977",
      "aliases": [
        "CVE-2024-40977"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "7bc04215a66b60e198aecaee8418f6d79fa19faa"
                },
                {
                  "fixed": "0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08"
                },
                {
                  "fixed": "85edd783f4539a994d66c4c014d5858f490b7a02"
                },
                {
                  "fixed": "e974dd4c22a23ec3ce579fb6d31a674ac0435da9"
                },
                {
                  "fixed": "ecf0b2b8a37c8464186620bef37812a117ff6366"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-40977.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.16.0"
                },
                {
                  "fixed": "6.1.96"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.36"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.9.7"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-40977.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:53.500571568Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08",
        "https://git.kernel.org/stable/c/85edd783f4539a994d66c4c014d5858f490b7a02",
        "https://git.kernel.org/stable/c/e974dd4c22a23ec3ce579fb6d31a674ac0435da9",
        "https://git.kernel.org/stable/c/ecf0b2b8a37c8464186620bef37812a117ff6366",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40977.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-40977",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40977.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-40977",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 522006,
  "published_at": "2024-07-12T12:32:13.447+00:00"
}