{
  "cveId": "CVE-2022-49476",
  "url": "https://patchblox.com/security/cve/CVE-2022-49476",
  "summary": "CVE-2022-49476 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49476, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  mt76: mt7921: fix kernel crash at mt7921_pci_rem...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  mt76: mt7921: fix kernel crash at mt7921_pci_remove  The crash log shown it is possible that mt7921_irq_handler is called while devm_free_irq is being handled so mt76_free_device need to be postponed until devm_free_irq is completed to solve the crash we free the mt76 device too early.  [ 9299.339655] BUG: kernel NULL pointer dereference, address: 0000000000000008 [ 9299.339705] #PF: supervisor read access in kernel mode [ 9299.339735] #PF: error_code(0x0000) - not-present page [ 9299.339768] PGD 0 P4D 0 [ 9299.339786] Oops: 0000 [#1] SMP PTI [ 9299.339812] CPU: 1 PID: 1624 Comm: prepare-suspend Not tainted 5.15.14-1.fc32.qubes.x86_64 #1 [ 9299.339863] Hardware name: Xen HVM domU, BIOS 4.14.3 01/20/2022 [ 9299.339901] RIP: 0010:mt7921_irq_handler\u002B0x1e/0x70 [mt7921e] [ 9299.340048] RSP: 0018:ffffa81b80c27cb0 EFLAGS: 00010082 [ 9299.340081] RAX: 0000000000000000 RBX: ffff98a4cb752020 RCX: ffffffffa96211c5 [ 9299.340123] RDX: 0000000000000000 RSI: 00000000000d4204 RDI: ffff98a4cb752020 [ 9299.340165] RBP: ffff98a4c28a62a4 R08: ffff98a4c37a96c0 R09: 0000000080150011 [ 9299.340207] R10: 0000000040000000 R11: 0000000000000000 R12: ffff98a4c4eaa080 [ 9299.340249] R13: ffff98a4c28a6360 R14: ffff98a4cb752020 R15: ffff98a4c28a6228 [ 9299.340297] FS: 00007260840d3740(0000) GS:ffff98a4ef700000(0000) knlGS:0000000000000000 [ 9299.340345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9299.340383] CR2: 0000000000000008 CR3: 0000000004c56001 CR4: 0000000000770ee0 [ 9299.340432] PKRU: 55555554 [ 9299.340449] Call Trace: [ 9299.340467] \u003CTASK\u003E [ 9299.340485] __free_irq\u002B0x221/0x350 [ 9299.340527] free_irq\u002B0x30/0x70 [ 9299.340553] devm_free_irq\u002B0x55/0x80 [ 9299.340579] mt7921_pci_remove\u002B0x2f/0x40 [mt7921e] [ 9299.340616] pci_device_remove\u002B0x3b/0xa0 [ 9299.340651] __device_release_driver\u002B0x17a/0x240 [ 9299.340686] device_driver_detach\u002B0x3c/0xa0 [ 9299.340714] unbind_store\u002B0x113/0x130 [ 9299.340740] kernfs_fop_write_iter\u002B0x124/0x1b0 [ 9299.340775] new_sync_write\u002B0x15c/0x1f0 [ 9299.340806] vfs_write\u002B0x1d2/0x270 [ 9299.340831] ksys_write\u002B0x67/0xe0 [ 9299.340857] do_syscall_64\u002B0x3b/0x90 [ 9299.340887] entry_SYSCALL_64_after_hwframe\u002B0x44/0xae",
  "published": "2025-02-26T07:01:23Z",
  "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": 0.0026,
  "epssPercentile": 0.17825,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49476",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49476",
      "released": "2025-02-26T07:01:23Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49476",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49476",
      "released": "2025-02-26T07:01:23Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49476",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49476",
      "released": "2025-02-26T07:01:23Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}