CVE-2024-26892 (GCVE-0-2024-26892)
Vulnerability from cvelistv5
Published
2024-04-17 10:27
Modified
2026-05-23 15:39
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921e: fix use-after-free in free_irq() From commit a304e1b82808 ("[PATCH] Debug shared irqs"), there is a test to make sure the shared irq handler should be able to handle the unexpected event after deregistration. For this case, let's apply MT76_REMOVED flag to indicate the device was removed and do not run into the resource access anymore. BUG: KASAN: use-after-free in mt7921_irq_handler+0xd8/0x100 [mt7921e] Read of size 8 at addr ffff88824a7d3b78 by task rmmod/11115 CPU: 28 PID: 11115 Comm: rmmod Tainted: G W L 5.17.0 #10 Hardware name: Micro-Star International Co., Ltd. MS-7D73/MPG B650I EDGE WIFI (MS-7D73), BIOS 1.81 01/05/2024 Call Trace: <TASK> dump_stack_lvl+0x6f/0xa0 print_address_description.constprop.0+0x1f/0x190 ? mt7921_irq_handler+0xd8/0x100 [mt7921e] ? mt7921_irq_handler+0xd8/0x100 [mt7921e] kasan_report.cold+0x7f/0x11b ? mt7921_irq_handler+0xd8/0x100 [mt7921e] mt7921_irq_handler+0xd8/0x100 [mt7921e] free_irq+0x627/0xaa0 devm_free_irq+0x94/0xd0 ? devm_request_any_context_irq+0x160/0x160 ? kobject_put+0x18d/0x4a0 mt7921_pci_remove+0x153/0x190 [mt7921e] pci_device_remove+0xa2/0x1d0 __device_release_driver+0x346/0x6e0 driver_detach+0x1ef/0x2c0 bus_remove_driver+0xe7/0x2d0 ? __check_object_size+0x57/0x310 pci_unregister_driver+0x26/0x250 __do_sys_delete_module+0x307/0x510 ? free_module+0x6a0/0x6a0 ? fpregs_assert_state_consistent+0x4b/0xb0 ? rcu_read_lock_sched_held+0x10/0x70 ? syscall_enter_from_user_mode+0x20/0x70 ? trace_hardirqs_on+0x1c/0x130 do_syscall_64+0x5c/0x80 ? trace_hardirqs_on_prepare+0x72/0x160 ? do_syscall_64+0x68/0x80 ? trace_hardirqs_on_prepare+0x72/0x160 entry_SYSCALL_64_after_hwframe+0x44/0xae
References
Impacted products
Vendor Product Version
Linux Linux Version: 9270270d62191b7549296721e8d5f3dc0df01563
Version: 9270270d62191b7549296721e8d5f3dc0df01563
Version: 9270270d62191b7549296721e8d5f3dc0df01563
Version: 9270270d62191b7549296721e8d5f3dc0df01563
Version: a76eaaaafd8b408238d7865bbbbd311f08988f3d
Version: 95e41ac30a0d0b3637f0b3c93235a7a107a2fb7f
Version: 6.2.15   ≤
Version: 6.3.2   ≤
Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:21:05.703Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/c7dd42fbebcfb02bef070fd48f774d6412d0b49d"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/bfe1adf1606f76c180324e53b130f0e76d5cc6c3"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/bfeaef901194c5923ce3330272786eff2fac513a"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/c957280ef6ab6bdf559a91ae693a6b34310697e3"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-26892",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:48:16.046141Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:24.499Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7921/pci.c",
            "drivers/net/wireless/mediatek/mt76/mt792x_dma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c7dd42fbebcfb02bef070fd48f774d6412d0b49d",
              "status": "affected",
              "version": "9270270d62191b7549296721e8d5f3dc0df01563",
              "versionType": "git"
            },
            {
              "lessThan": "bfe1adf1606f76c180324e53b130f0e76d5cc6c3",
              "status": "affected",
              "version": "9270270d62191b7549296721e8d5f3dc0df01563",
              "versionType": "git"
            },
            {
              "lessThan": "bfeaef901194c5923ce3330272786eff2fac513a",
              "status": "affected",
              "version": "9270270d62191b7549296721e8d5f3dc0df01563",
              "versionType": "git"
            },
            {
              "lessThan": "c957280ef6ab6bdf559a91ae693a6b34310697e3",
              "status": "affected",
              "version": "9270270d62191b7549296721e8d5f3dc0df01563",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a76eaaaafd8b408238d7865bbbbd311f08988f3d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "95e41ac30a0d0b3637f0b3c93235a7a107a2fb7f",
              "versionType": "git"
            },
            {
              "lessThan": "6.3",
              "status": "affected",
              "version": "6.2.15",
              "versionType": "semver"
            },
            {
              "lessThan": "6.4",
              "status": "affected",
              "version": "6.3.2",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7921/pci.c",
            "drivers/net/wireless/mediatek/mt76/mt792x_dma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.23",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7.11",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8.2",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.9",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.2.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.3.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921e: fix use-after-free in free_irq()\n\nFrom commit a304e1b82808 (\"[PATCH] Debug shared irqs\"), there is a test\nto make sure the shared irq handler should be able to handle the unexpected\nevent after deregistration. For this case, let\u0027s apply MT76_REMOVED flag to\nindicate the device was removed and do not run into the resource access\nanymore.\n\nBUG: KASAN: use-after-free in mt7921_irq_handler+0xd8/0x100 [mt7921e]\nRead of size 8 at addr ffff88824a7d3b78 by task rmmod/11115\nCPU: 28 PID: 11115 Comm: rmmod Tainted: G        W    L    5.17.0 #10\nHardware name: Micro-Star International Co., Ltd. MS-7D73/MPG B650I\nEDGE WIFI (MS-7D73), BIOS 1.81 01/05/2024\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x6f/0xa0\n print_address_description.constprop.0+0x1f/0x190\n ? mt7921_irq_handler+0xd8/0x100 [mt7921e]\n ? mt7921_irq_handler+0xd8/0x100 [mt7921e]\n kasan_report.cold+0x7f/0x11b\n ? mt7921_irq_handler+0xd8/0x100 [mt7921e]\n mt7921_irq_handler+0xd8/0x100 [mt7921e]\n free_irq+0x627/0xaa0\n devm_free_irq+0x94/0xd0\n ? devm_request_any_context_irq+0x160/0x160\n ? kobject_put+0x18d/0x4a0\n mt7921_pci_remove+0x153/0x190 [mt7921e]\n pci_device_remove+0xa2/0x1d0\n __device_release_driver+0x346/0x6e0\n driver_detach+0x1ef/0x2c0\n bus_remove_driver+0xe7/0x2d0\n ? __check_object_size+0x57/0x310\n pci_unregister_driver+0x26/0x250\n __do_sys_delete_module+0x307/0x510\n ? free_module+0x6a0/0x6a0\n ? fpregs_assert_state_consistent+0x4b/0xb0\n ? rcu_read_lock_sched_held+0x10/0x70\n ? syscall_enter_from_user_mode+0x20/0x70\n ? trace_hardirqs_on+0x1c/0x130\n do_syscall_64+0x5c/0x80\n ? trace_hardirqs_on_prepare+0x72/0x160\n ? do_syscall_64+0x68/0x80\n ? trace_hardirqs_on_prepare+0x72/0x160\n entry_SYSCALL_64_after_hwframe+0x44/0xae"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:39:42.001Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c7dd42fbebcfb02bef070fd48f774d6412d0b49d"
        },
        {
          "url": "https://git.kernel.org/stable/c/bfe1adf1606f76c180324e53b130f0e76d5cc6c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/bfeaef901194c5923ce3330272786eff2fac513a"
        },
        {
          "url": "https://git.kernel.org/stable/c/c957280ef6ab6bdf559a91ae693a6b34310697e3"
        }
      ],
      "title": "wifi: mt76: mt7921e: fix use-after-free in free_irq()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26892",
    "datePublished": "2024-04-17T10:27:44.697Z",
    "dateReserved": "2024-02-19T14:20:24.186Z",
    "dateUpdated": "2026-05-23T15:39:42.001Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.