CVE-2022-49876

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{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2022-49876", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-01T16:03:03.883481Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T14:31:05.504Z"}}], "cna": {"title": "wifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "f856373e2f31ffd340e47e2b00027bd4070f74b3", "lessThan": "03eb68c72cee249aeb7af7d04a83c033aca3d6d9", "versionType": "git"}, {"status": "affected", "version": "f856373e2f31ffd340e47e2b00027bd4070f74b3", "lessThan": "780854186946e0de2be192ee7fa5125666533b3a", "versionType": "git"}], "programFiles": ["net/mac80211/tx.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.19"}, {"status": "unaffected", "version": "0", "lessThan": "5.19", "versionType": "semver"}, {"status": "unaffected", "version": "6.0.9", "versionType": "semver", "lessThanOrEqual": "6.0.*"}, {"status": "unaffected", "version": "6.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/mac80211/tx.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/03eb68c72cee249aeb7af7d04a83c033aca3d6d9"}, {"url": "https://git.kernel.org/stable/c/780854186946e0de2be192ee7fa5125666533b3a"}], "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 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->bss = NULL ...\n ... ieee80211_subif_start_xmit()\n ieee80211_multicast_to_unicast\n //!sdata->bss->multicast_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<TASK>\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</TASK>"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.0.9", "versionStartIncluding": "5.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1", "versionStartIncluding": "5.19"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:08:27.233Z"}}}, "cveMetadata": {"cveId": "CVE-2022-49876", "state": "PUBLISHED", "dateUpdated": "2026-05-11T19:08:27.233Z", "dateReserved": "2025-05-01T14:05:17.238Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-05-01T14:10:25.040Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D0A4E4AD-3B87-42F8-BB1A-CCA3FC47367F", "versionEndExcluding": "6.0.9", "versionStartIncluding": "5.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*", "matchCriteriaId": "17F0B248-42CF-4AE6-A469-BB1BAE7F4705", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*", "matchCriteriaId": "E2422816-0C14-4B5E-A1E6-A9D776E5C49B", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*", "matchCriteriaId": "1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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->bss = NULL ...\n ... ieee80211_subif_start_xmit()\n ieee80211_multicast_to_unicast\n //!sdata->bss->multicast_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<TASK>\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</TASK>"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit() Cuando el dispositivo est\u00e1 en ejecuci\u00f3n y se cambia el estado de la interfaz, se activa el problema gpf. El proceso de activaci\u00f3n del problema es el siguiente: Hilo A: Hilo B ieee80211_runtime_change_iftype() process_one_work() ... ... ieee80211_do_stop() ... ... ... sdata-&gt;bss = NULL ... ... ieee80211_subif_start_xmit() ieee80211_multicast_to_unicast //!sdata-&gt;bss-&gt;multicast_to_unicast cause gpf issue Cuando se cambia el estado de la interfaz, la cola de env\u00edo contin\u00faa enviando paquetes. Despu\u00e9s de que bss se establece en NULL, se accede a bss. Como resultado, esto causa un problema de general-protection-fault. La siguiente es la informaci\u00f3n de la pila: falla de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0xdffffc000000002f: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref en el rango [0x0000000000000178-0x000000000000017f] Cola de trabajo: mld mld_ifc_work RIP: 0010:ieee80211_subif_start_xmit+0x25b/0x1310 Rastreo de llamadas: dev_hard_start_xmit+0x1be/0x990 __dev_queue_xmit+0x2c9a/0x3b60 ip6_finish_output2+0xf92/0x1520 ip6_finish_output+0x6af/0x11e0 ip6_output+0x1ed/0x540 mld_sendpack+0xa09/0xe70 mld_ifc_work+0x71c/0xdb0 process_one_work+0x9bf/0x1710 worker_thread+0x665/0x1080 kthread+0x2e4/0x3a0 ret_from_fork+0x1f/0x30 "}], "id": "CVE-2022-49876", "lastModified": "2026-06-17T05:19:23.480", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-49876", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T16:03:03.883481Z", "version": "2.0.3"}}]}, "published": "2025-05-01T15:16:12.550", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/03eb68c72cee249aeb7af7d04a83c033aca3d6d9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/780854186946e0de2be192ee7fa5125666533b3a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: wifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()", "id": "2363498", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363498"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()\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... ...\nieee80211_do_stop() ...\n... ...\nsdata->bss = NULL ...\n... ieee80211_subif_start_xmit()\nieee80211_multicast_to_unicast\n//!sdata->bss->multicast_to_unicast\ncause gpf issue\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.\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<TASK>\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</TASK>"], "name": "CVE-2022-49876", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49876\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49876\nhttps://lore.kernel.org/linux-cve-announce/2025050152-CVE-2022-49876-498d@gregkh/T"], "threat_severity": "Moderate"}

{}