{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/tx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "03eb68c72cee249aeb7af7d04a83c033aca3d6d9",
              "status": "affected",
              "version": "f856373e2f31ffd340e47e2b00027bd4070f74b3",
              "versionType": "git"
            },
            {
              "lessThan": "780854186946e0de2be192ee7fa5125666533b3a",
              "status": "affected",
              "version": "f856373e2f31ffd340e47e2b00027bd4070f74b3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/tx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.19"
            },
            {
              "lessThan": "5.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()\n\nWhen device is running and the interface status is changed, the gpf issue\nis triggered. The problem triggering process is as follows:\nThread A:                           Thread B\nieee80211_runtime_change_iftype()   process_one_work()\n    ...                                 ...\n    ieee80211_do_stop()                 ...\n    ...                                 ...\n        sdata-\u003ebss = NULL               ...\n        ...                             ieee80211_subif_start_xmit()\n                                            ieee80211_multicast_to_unicast\n                                    //!sdata-\u003ebss-\u003emulticast_to_unicast\n                                      cause gpf issue\n\nWhen the interface status is changed, the sending queue continues to send\npackets. After the bss is set to NULL, the bss is accessed. As a result,\nthis causes a general-protection-fault issue.\n\nThe following is the stack information:\ngeneral protection fault, probably for non-canonical address\n0xdffffc000000002f: 0000 [#1] PREEMPT SMP KASAN\nKASAN: null-ptr-deref in range [0x0000000000000178-0x000000000000017f]\nWorkqueue: mld mld_ifc_work\nRIP: 0010:ieee80211_subif_start_xmit+0x25b/0x1310\nCall Trace:\n\u003cTASK\u003e\ndev_hard_start_xmit+0x1be/0x990\n__dev_queue_xmit+0x2c9a/0x3b60\nip6_finish_output2+0xf92/0x1520\nip6_finish_output+0x6af/0x11e0\nip6_output+0x1ed/0x540\nmld_sendpack+0xa09/0xe70\nmld_ifc_work+0x71c/0xdb0\nprocess_one_work+0x9bf/0x1710\nworker_thread+0x665/0x1080\nkthread+0x2e4/0x3a0\nret_from_fork+0x1f/0x30\n\u003c/TASK\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-01T14:10:25.040Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/03eb68c72cee249aeb7af7d04a83c033aca3d6d9"
        },
        {
          "url": "https://git.kernel.org/stable/c/780854186946e0de2be192ee7fa5125666533b3a"
        }
      ],
      "title": "wifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()",
      "x_generator": {
        "engine": "bippy-1.1.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49876",
    "datePublished": "2025-05-01T14:10:25.040Z",
    "dateReserved": "2025-05-01T14:05:17.238Z",
    "dateUpdated": "2025-05-01T14:10:25.040Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49876\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:12.550\",\"lastModified\":\"2025-05-01T15:16:12.550\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()\\n\\nWhen device is running and the interface status is changed, the gpf issue\\nis triggered. The problem triggering process is as follows:\\nThread A:                           Thread B\\nieee80211_runtime_change_iftype()   process_one_work()\\n    ...                                 ...\\n    ieee80211_do_stop()                 ...\\n    ...                                 ...\\n        sdata-\u003ebss = NULL               ...\\n        ...                             ieee80211_subif_start_xmit()\\n                                            ieee80211_multicast_to_unicast\\n                                    //!sdata-\u003ebss-\u003emulticast_to_unicast\\n                                      cause gpf issue\\n\\nWhen the interface status is changed, the sending queue continues to send\\npackets. After the bss is set to NULL, the bss is accessed. As a result,\\nthis causes a general-protection-fault issue.\\n\\nThe following is the stack information:\\ngeneral protection fault, probably for non-canonical address\\n0xdffffc000000002f: 0000 [#1] PREEMPT SMP KASAN\\nKASAN: null-ptr-deref in range [0x0000000000000178-0x000000000000017f]\\nWorkqueue: mld mld_ifc_work\\nRIP: 0010:ieee80211_subif_start_xmit+0x25b/0x1310\\nCall Trace:\\n\u003cTASK\u003e\\ndev_hard_start_xmit+0x1be/0x990\\n__dev_queue_xmit+0x2c9a/0x3b60\\nip6_finish_output2+0xf92/0x1520\\nip6_finish_output+0x6af/0x11e0\\nip6_output+0x1ed/0x540\\nmld_sendpack+0xa09/0xe70\\nmld_ifc_work+0x71c/0xdb0\\nprocess_one_work+0x9bf/0x1710\\nworker_thread+0x665/0x1080\\nkthread+0x2e4/0x3a0\\nret_from_fork+0x1f/0x30\\n\u003c/TASK\u003e\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/03eb68c72cee249aeb7af7d04a83c033aca3d6d9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/780854186946e0de2be192ee7fa5125666533b3a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}