fkie_cve-2022-50498
Vulnerability from fkie_nvd
Published
2025-10-04 16:15
Modified
2025-10-06 14:56
Severity ?
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6ad1c94e1e7e374d88f0cfd77936dddb8339aaba
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6f1991a940b90753b34570f093a21dba366e8cc0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a845a0c4bdece2c0073ecea2fca7c4d5f0550f78
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c0323c0fd07804d5874699e93f935cda0d989c67
Impacted products
Vendor Product Version


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{
  "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."
    }
  ],
  "id": "CVE-2022-50498",
  "lastModified": "2025-10-06T14:56:21.733",
  "metrics": {},
  "published": "2025-10-04T16:15:46.907",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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