CVE-2022-50498 (GCVE-0-2022-50498)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:43 – Updated: 2025-10-04 15:43
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: eth: alx: take rtnl_lock on resume Zbynek reports that alx trips an rtnl assertion on resume: RTNL: assertion failed at net/core/dev.c (2891) RIP: 0010:netif_set_real_num_tx_queues+0x1ac/0x1c0 Call Trace: <TASK> __alx_open+0x230/0x570 [alx] alx_resume+0x54/0x80 [alx] ? pci_legacy_resume+0x80/0x80 dpm_run_callback+0x4a/0x150 device_resume+0x8b/0x190 async_resume+0x19/0x30 async_run_entry_fn+0x30/0x130 process_one_work+0x1e5/0x3b0 indeed the driver does not hold rtnl_lock during its internal close and re-open functions during suspend/resume. Note that this is not a huge bug as the driver implements its own locking, and does not implement changing the number of queues, but we need to silence the splat.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4a5fe57e775188be96359a1934501be45fe5f705 , < 6f1991a940b90753b34570f093a21dba366e8cc0 (git)
Affected: 4a5fe57e775188be96359a1934501be45fe5f705 , < a845a0c4bdece2c0073ecea2fca7c4d5f0550f78 (git)
Affected: 4a5fe57e775188be96359a1934501be45fe5f705 , < c0323c0fd07804d5874699e93f935cda0d989c67 (git)
Affected: 4a5fe57e775188be96359a1934501be45fe5f705 , < 6ad1c94e1e7e374d88f0cfd77936dddb8339aaba (git)
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    Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.75 , ≤ 5.15.* (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/atheros/alx/main.c"
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          "vendor": "Linux",
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              "versionType": "semver"
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              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.17",
              "versionType": "semver"
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neth: alx: take rtnl_lock on resume\n\nZbynek reports that alx trips an rtnl assertion on resume:\n\n RTNL: assertion failed at net/core/dev.c (2891)\n RIP: 0010:netif_set_real_num_tx_queues+0x1ac/0x1c0\n Call Trace:\n  \u003cTASK\u003e\n  __alx_open+0x230/0x570 [alx]\n  alx_resume+0x54/0x80 [alx]\n  ? pci_legacy_resume+0x80/0x80\n  dpm_run_callback+0x4a/0x150\n  device_resume+0x8b/0x190\n  async_resume+0x19/0x30\n  async_run_entry_fn+0x30/0x130\n  process_one_work+0x1e5/0x3b0\n\nindeed the driver does not hold rtnl_lock during its internal close\nand re-open functions during suspend/resume. Note that this is not\na huge bug as the driver implements its own locking, and does not\nimplement changing the number of queues, but we need to silence\nthe splat."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-04T15:43:49.383Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/6f1991a940b90753b34570f093a21dba366e8cc0"
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          "url": "https://git.kernel.org/stable/c/c0323c0fd07804d5874699e93f935cda0d989c67"
        },
        {
          "url": "https://git.kernel.org/stable/c/6ad1c94e1e7e374d88f0cfd77936dddb8339aaba"
        }
      ],
      "title": "eth: alx: take rtnl_lock on resume",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50498",
    "datePublished": "2025-10-04T15:43:49.383Z",
    "dateReserved": "2025-10-04T15:39:19.464Z",
    "dateUpdated": "2025-10-04T15:43:49.383Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50498\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-04T16:15:46.907\",\"lastModified\":\"2025-10-06T14:56:21.733\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\neth: alx: take rtnl_lock on resume\\n\\nZbynek reports that alx trips an rtnl assertion on resume:\\n\\n RTNL: assertion failed at net/core/dev.c (2891)\\n RIP: 0010:netif_set_real_num_tx_queues+0x1ac/0x1c0\\n Call Trace:\\n  \u003cTASK\u003e\\n  __alx_open+0x230/0x570 [alx]\\n  alx_resume+0x54/0x80 [alx]\\n  ? pci_legacy_resume+0x80/0x80\\n  dpm_run_callback+0x4a/0x150\\n  device_resume+0x8b/0x190\\n  async_resume+0x19/0x30\\n  async_run_entry_fn+0x30/0x130\\n  process_one_work+0x1e5/0x3b0\\n\\nindeed the driver does not hold rtnl_lock during its internal close\\nand re-open functions during suspend/resume. Note that this is not\\na huge bug as the driver implements its own locking, and does not\\nimplement changing the number of queues, but we need to silence\\nthe splat.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6ad1c94e1e7e374d88f0cfd77936dddb8339aaba\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6f1991a940b90753b34570f093a21dba366e8cc0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a845a0c4bdece2c0073ecea2fca7c4d5f0550f78\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c0323c0fd07804d5874699e93f935cda0d989c67\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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