{
  "cveId": "CVE-2022-49876",
  "url": "https://patchblox.com/security/cve/CVE-2022-49876",
  "summary": "CVE-2022-49876 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49876, released May 1, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  wifi: mac80211: fix general-protection-fault in...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  wifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()  When device is running and the interface status is changed, the gpf issue is triggered. The problem triggering process is as follows: Thread A:                           Thread B ieee80211_runtime_change_iftype()   process_one_work()     ...                                 ...     ieee80211_do_stop()                 ...     ...                                 ...         sdata-\u003Ebss = NULL               ...         ...                             ieee80211_subif_start_xmit()                                             ieee80211_multicast_to_unicast                                     //!sdata-\u003Ebss-\u003Emulticast_to_unicast                                       cause gpf issue  When the interface status is changed, the sending queue continues to send packets. After the bss is set to NULL, the bss is accessed. As a result, this causes a general-protection-fault issue.  The following is the stack information: general protection fault, probably for non-canonical address 0xdffffc000000002f: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000178-0x000000000000017f] Workqueue: mld mld_ifc_work RIP: 0010:ieee80211_subif_start_xmit\u002B0x25b/0x1310 Call Trace: \u003CTASK\u003E dev_hard_start_xmit\u002B0x1be/0x990 __dev_queue_xmit\u002B0x2c9a/0x3b60 ip6_finish_output2\u002B0xf92/0x1520 ip6_finish_output\u002B0x6af/0x11e0 ip6_output\u002B0x1ed/0x540 mld_sendpack\u002B0xa09/0xe70 mld_ifc_work\u002B0x71c/0xdb0 process_one_work\u002B0x9bf/0x1710 worker_thread\u002B0x665/0x1080 kthread\u002B0x2e4/0x3a0 ret_from_fork\u002B0x1f/0x30 \u003C/TASK\u003E",
  "published": "2025-05-01T15:16:12Z",
  "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": 0.0017,
  "epssPercentile": 0.06462,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49876",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49876",
      "released": "2025-05-01T15:16:12Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49876",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49876",
      "released": "2025-05-01T15:16:12Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49876",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49876",
      "released": "2025-05-01T15:16:12Z"
    }
  ],
  "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"
  }
}