{
  "cveId": "CVE-2021-47558",
  "url": "https://patchblox.com/security/cve/CVE-2021-47558",
  "summary": "CVE-2021-47558 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47558, released May 24, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  net: stmmac: Disable Tx queues when reconfigurin...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  net: stmmac: Disable Tx queues when reconfiguring the interface  The Tx queues were not disabled in situations where the driver needed to stop the interface to apply a new configuration. This could result in a kernel panic when doing any of the 3 following actions: * reconfiguring the number of queues (ethtool -L) * reconfiguring the size of the ring buffers (ethtool -G) * installing/removing an XDP program (ip l set dev ethX xdp)  Prevent the panic by making sure netif_tx_disable is called when stopping an interface.  Without this patch, the following kernel panic can be observed when doing any of the actions above:  Unable to handle kernel paging request at virtual address ffff80001238d040 [....]  Call trace:   dwmac4_set_addr\u002B0x8/0x10   dev_hard_start_xmit\u002B0xe4/0x1ac   sch_direct_xmit\u002B0xe8/0x39c   __dev_queue_xmit\u002B0x3ec/0xaf0   dev_queue_xmit\u002B0x14/0x20 [...] [ end trace 0000000000000002 ]---",
  "published": "2024-05-24T15:15:20Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00183,
  "epssPercentile": 0.07904,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47558",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47558",
      "released": "2024-05-24T15:15:20Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47558",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47558",
      "released": "2024-05-24T15:15:20Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47558",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47558",
      "released": "2024-05-24T15:15:20Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}