GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2022-49416 (GCVE-0-2022-49416)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:12 – Updated: 2026-08-05 08:55
VLAI
Title
wifi: mac80211: fix use-after-free in chanctx code
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix use-after-free in chanctx code In ieee80211_vif_use_reserved_context(), when we have an old context and the new context's replace_state is set to IEEE80211_CHANCTX_REPLACE_NONE, we free the old context in ieee80211_vif_use_reserved_reassign(). Therefore, we cannot check the old_ctx anymore, so we should set it to NULL after this point. However, since the new_ctx replace state is clearly not IEEE80211_CHANCTX_REPLACES_OTHER, we're not going to do anything else in this function and can just return to avoid accessing the freed old_ctx.
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-27 18:16 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f , < 88cc8f963febe192d6ded9df7217f92f380b449a (git)
Affected: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f , < 4ba81e794f0fad6234f644c2da1ae14d5b95e1c4 (git)
Affected: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f , < 9f1e5cc85ad77e52f54049a94db0407445ae2a34 (git)
Affected: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f , < 265bec4779a38b65e86a25120370f200822dfa76 (git)
Affected: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f , < 6118bbdf69f4718b02d26bbcf2e497eb66004331 (git)
Affected: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f , < b79110f2bf6022e60e590d2e094728a8eec3e79e (git)
Affected: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f , < 82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c (git)
Affected: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f , < 4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c (git)
Affected: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f , < 2965c4cdf7ad9ce0796fac5e57debb9519ea721e (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.17
Unaffected: 0 , < 3.17 (semver)
Unaffected: 4.9.318 , ≤ 4.9.* (semver)
Unaffected: 4.14.283 , ≤ 4.14.* (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-49416",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-27T18:16:18.774528Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-27T18:22:33.196Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/chan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "88cc8f963febe192d6ded9df7217f92f380b449a",
              "status": "affected",
              "version": "5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f",
              "versionType": "git"
            },
            {
              "lessThan": "4ba81e794f0fad6234f644c2da1ae14d5b95e1c4",
              "status": "affected",
              "version": "5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f",
              "versionType": "git"
            },
            {
              "lessThan": "9f1e5cc85ad77e52f54049a94db0407445ae2a34",
              "status": "affected",
              "version": "5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f",
              "versionType": "git"
            },
            {
              "lessThan": "265bec4779a38b65e86a25120370f200822dfa76",
              "status": "affected",
              "version": "5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f",
              "versionType": "git"
            },
            {
              "lessThan": "6118bbdf69f4718b02d26bbcf2e497eb66004331",
              "status": "affected",
              "version": "5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f",
              "versionType": "git"
            },
            {
              "lessThan": "b79110f2bf6022e60e590d2e094728a8eec3e79e",
              "status": "affected",
              "version": "5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f",
              "versionType": "git"
            },
            {
              "lessThan": "82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c",
              "status": "affected",
              "version": "5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f",
              "versionType": "git"
            },
            {
              "lessThan": "4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c",
              "status": "affected",
              "version": "5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f",
              "versionType": "git"
            },
            {
              "lessThan": "2965c4cdf7ad9ce0796fac5e57debb9519ea721e",
              "status": "affected",
              "version": "5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/chan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.17"
            },
            {
              "lessThan": "3.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.318",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.283",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.247",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.198",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.318",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.283",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.247",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.198",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.121",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.46",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.14",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.3",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fix use-after-free in chanctx code\n\nIn ieee80211_vif_use_reserved_context(), when we have an\nold context and the new context\u0027s replace_state is set to\nIEEE80211_CHANCTX_REPLACE_NONE, we free the old context\nin ieee80211_vif_use_reserved_reassign(). Therefore, we\ncannot check the old_ctx anymore, so we should set it to\nNULL after this point.\n\nHowever, since the new_ctx replace state is clearly not\nIEEE80211_CHANCTX_REPLACES_OTHER, we\u0027re not going to do\nanything else in this function and can just return to\navoid accessing the freed old_ctx."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The UAF is reached when mac80211 finalizes a channel-context reservation during CSA, which an adjacent attacker triggers by sending CSA beacons/action frames to an associated STA (or via IBSS/mesh CSA). WiFi frame processing is Adjacent, not Network.\nAC:L - The free-then-use is deterministic on the REPLACE_NONE reassign path when the vif was the sole user of old_ctx; the attacker controls CSA initiation and does not depend on an uncontrolled race or rare config.\nPR:N - The STA/mlme path processes CSA from the AP (or spoofed management frames) with no privileges on the victim host. No CAP_NET_ADMIN or local account is required for the over-the-air trigger.\nUI:N - Once the device is associated, CSA handling and chswitch_work run automatically with no further user action required to hit the vulnerable finalize path.\nS:U - This is a mac80211 kernel UAF affecting the local kernel authority only; it does not cross a VM, IOMMU, or other security boundary.\nC:H - Use-after-free of the ieee80211_chanctx object enables heap reuse/control of the freed object and therefore arbitrary read primitives under standard UAF exploitation.\nI:H - The same UAF enables heap spraying and corruption of the reused chanctx object, yielding write/control-flow hijack primitives consistent with kernel memory-corruption impact.\nA:H - Use-after-free of a channel context can cause kernel oops/panic (and is treated as High availability impact even when not fully exploited for code execution)."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:55:08.558Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/88cc8f963febe192d6ded9df7217f92f380b449a"
        },
        {
          "url": "https://git.kernel.org/stable/c/4ba81e794f0fad6234f644c2da1ae14d5b95e1c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/9f1e5cc85ad77e52f54049a94db0407445ae2a34"
        },
        {
          "url": "https://git.kernel.org/stable/c/265bec4779a38b65e86a25120370f200822dfa76"
        },
        {
          "url": "https://git.kernel.org/stable/c/6118bbdf69f4718b02d26bbcf2e497eb66004331"
        },
        {
          "url": "https://git.kernel.org/stable/c/b79110f2bf6022e60e590d2e094728a8eec3e79e"
        },
        {
          "url": "https://git.kernel.org/stable/c/82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c"
        },
        {
          "url": "https://git.kernel.org/stable/c/4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c"
        },
        {
          "url": "https://git.kernel.org/stable/c/2965c4cdf7ad9ce0796fac5e57debb9519ea721e"
        }
      ],
      "title": "wifi: mac80211: fix use-after-free in chanctx code",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49416",
    "datePublished": "2025-02-26T02:12:37.173Z",
    "dateReserved": "2025-02-26T02:08:31.568Z",
    "dateUpdated": "2026-08-05T08:55:08.558Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49416",
      "date": "2026-09-14",
      "epss": "0.00328",
      "percentile": "0.2579"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49416\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:01:18.073\",\"lastModified\":\"2026-08-04T10:17:47.600\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: mac80211: fix use-after-free in chanctx code\\n\\nIn ieee80211_vif_use_reserved_context(), when we have an\\nold context and the new context\u0027s replace_state is set to\\nIEEE80211_CHANCTX_REPLACE_NONE, we free the old context\\nin ieee80211_vif_use_reserved_reassign(). Therefore, we\\ncannot check the old_ctx anymore, so we should set it to\\nNULL after this point.\\n\\nHowever, since the new_ctx replace state is clearly not\\nIEEE80211_CHANCTX_REPLACES_OTHER, we\u0027re not going to do\\nanything else in this function and can just return to\\navoid accessing the freed old_ctx.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: mac80211: correcci\u00f3n de use-after-free en el c\u00f3digo chanctx En ieee80211_vif_use_reserved_context(), cuando tenemos un contexto antiguo y el replace_state del nuevo contexto est\u00e1 configurado en IEEE80211_CHANCTX_REPLACE_NONE, liberamos el contexto antiguo en ieee80211_vif_use_reserved_reassign(). Por lo tanto, ya no podemos verificar el old_ctx, por lo que deber\u00edamos configurarlo en NULL despu\u00e9s de este punto. Sin embargo, dado que el estado de reemplazo de new_ctx claramente no es IEEE80211_CHANCTX_REPLACES_OTHER, no vamos a hacer nada m\u00e1s en esta funci\u00f3n y podemos simplemente regresar para evitar acceder al old_ctx liberado.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/mac80211/chan.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\",\"lessThan\":\"88cc8f963febe192d6ded9df7217f92f380b449a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\",\"lessThan\":\"4ba81e794f0fad6234f644c2da1ae14d5b95e1c4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\",\"lessThan\":\"9f1e5cc85ad77e52f54049a94db0407445ae2a34\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\",\"lessThan\":\"265bec4779a38b65e86a25120370f200822dfa76\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\",\"lessThan\":\"6118bbdf69f4718b02d26bbcf2e497eb66004331\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\",\"lessThan\":\"b79110f2bf6022e60e590d2e094728a8eec3e79e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\",\"lessThan\":\"82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\",\"lessThan\":\"4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\",\"lessThan\":\"2965c4cdf7ad9ce0796fac5e57debb9519ea721e\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/mac80211/chan.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.17\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.17\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.9.318\",\"lessThanOrEqual\":\"4.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.283\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.247\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.198\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.121\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.46\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.17.14\",\"lessThanOrEqual\":\"5.17.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.18.3\",\"lessThanOrEqual\":\"5.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.19\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-02-27T18:16:18.774528Z\",\"id\":\"CVE-2022-49416\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.17\",\"versionEndExcluding\":\"4.9.318\",\"matchCriteriaId\":\"C716866D-6557-4910-9D02-0C0C8FDCD779\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.283\",\"matchCriteriaId\":\"D6823775-2653-4644-A0D4-4E6E68F10C65\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.247\",\"matchCriteriaId\":\"B8CFA0F4-2D75-41F4-9753-87944A08B53B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.198\",\"matchCriteriaId\":\"3EC49633-14DE-4EBD-BB80-76AE2E3EABB9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.121\",\"matchCriteriaId\":\"34ACD872-E5BC-401C-93D5-B357A62426E0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.46\",\"matchCriteriaId\":\"20D41697-0E8B-4B7D-8842-F17BF2AA21E1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.17.14\",\"matchCriteriaId\":\"15E2DD33-2255-4B76-9C15-04FF8CBAB252\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.18\",\"versionEndExcluding\":\"5.18.3\",\"matchCriteriaId\":\"8E122216-2E9E-4B3E-B7B8-D575A45BA3C2\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/265bec4779a38b65e86a25120370f200822dfa76\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2965c4cdf7ad9ce0796fac5e57debb9519ea721e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4ba81e794f0fad6234f644c2da1ae14d5b95e1c4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6118bbdf69f4718b02d26bbcf2e497eb66004331\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/88cc8f963febe192d6ded9df7217f92f380b449a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9f1e5cc85ad77e52f54049a94db0407445ae2a34\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b79110f2bf6022e60e590d2e094728a8eec3e79e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T19:43:37+00:00",
      "cve": "CVE-2022-49416",
      "id": "CVE-2022-49416",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "321",
      "product_status:known_affected": "80",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: mac80211: fix use-after-free in chanctx code",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49416.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:28:15Z",
      "cve": "CVE-2022-49416",
      "id": "CVE-2022-49416",
      "initial_release_date": "2025-02-27T03:07:16Z",
      "product_status:known_affected": "497",
      "product_status:known_not_affected": "156",
      "product_status:recommended": "380",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49416",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49416.json",
      "version": "57"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-49416\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-27T18:16:18.774528Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-27T18:16:20.240Z\"}}], \"cna\": {\"title\": \"wifi: mac80211: fix use-after-free in chanctx code\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\", \"lessThan\": \"88cc8f963febe192d6ded9df7217f92f380b449a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\", \"lessThan\": \"4ba81e794f0fad6234f644c2da1ae14d5b95e1c4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\", \"lessThan\": \"9f1e5cc85ad77e52f54049a94db0407445ae2a34\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\", \"lessThan\": \"265bec4779a38b65e86a25120370f200822dfa76\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\", \"lessThan\": \"6118bbdf69f4718b02d26bbcf2e497eb66004331\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\", \"lessThan\": \"b79110f2bf6022e60e590d2e094728a8eec3e79e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\", \"lessThan\": \"82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\", \"lessThan\": \"4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f\", \"lessThan\": \"2965c4cdf7ad9ce0796fac5e57debb9519ea721e\", \"versionType\": \"git\"}], \"programFiles\": [\"net/mac80211/chan.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.17\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.17\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.9.318\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.283\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.247\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.198\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.121\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.46\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17.14\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.17.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.18.*\"}, {\"status\": \"unaffected\", \"version\": \"5.19\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/mac80211/chan.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/88cc8f963febe192d6ded9df7217f92f380b449a\"}, {\"url\": \"https://git.kernel.org/stable/c/4ba81e794f0fad6234f644c2da1ae14d5b95e1c4\"}, {\"url\": \"https://git.kernel.org/stable/c/9f1e5cc85ad77e52f54049a94db0407445ae2a34\"}, {\"url\": \"https://git.kernel.org/stable/c/265bec4779a38b65e86a25120370f200822dfa76\"}, {\"url\": \"https://git.kernel.org/stable/c/6118bbdf69f4718b02d26bbcf2e497eb66004331\"}, {\"url\": \"https://git.kernel.org/stable/c/b79110f2bf6022e60e590d2e094728a8eec3e79e\"}, {\"url\": \"https://git.kernel.org/stable/c/82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c\"}, {\"url\": \"https://git.kernel.org/stable/c/4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c\"}, {\"url\": \"https://git.kernel.org/stable/c/2965c4cdf7ad9ce0796fac5e57debb9519ea721e\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: mac80211: fix use-after-free in chanctx code\\n\\nIn ieee80211_vif_use_reserved_context(), when we have an\\nold context and the new context\u0027s replace_state is set to\\nIEEE80211_CHANCTX_REPLACE_NONE, we free the old context\\nin ieee80211_vif_use_reserved_reassign(). Therefore, we\\ncannot check the old_ctx anymore, so we should set it to\\nNULL after this point.\\n\\nHowever, since the new_ctx replace state is clearly not\\nIEEE80211_CHANCTX_REPLACES_OTHER, we\u0027re not going to do\\nanything else in this function and can just return to\\navoid accessing the freed old_ctx.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.318\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.283\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.247\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.198\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.121\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.46\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.14\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18.3\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19\", \"versionStartIncluding\": \"3.17\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T18:59:23.733Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49416\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T18:59:23.733Z\", \"dateReserved\": \"2025-02-26T02:08:31.568Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T02:12:37.173Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.