CVE-2026-23185

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In fact, it is not\ncanceled anywhere except in the restart cleanup, where we don't really\nhave to.\n\nThis can cause an init-after-queue issue: if, for example, the work was\nqueued and then drv_change_interface got executed.\n\nThis can also cause use-after-free: if the work is executed after the\nvif is freed."}], "metrics": [{"cvssV3_1": {"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"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerability requires local access to manage WiFi interfaces \u2014 freeing the vif (via interface removal or drv_change_interface) needs CAP_NET_ADMIN operations that an adjacent WiFi attacker cannot trigger remotely.\nAC:L - A local attacker controls both sides: they can trigger MLO link activation (scheduling the 5-second delayed work) and then immediately change/remove the interface before the work fires. The 5-second window is generous and fully attacker-controlled.\nPR:L - WiFi connection management is available to unprivileged users through NetworkManager, and various automatic interface management paths (driver restart, hardware events) could trigger the vif free without explicit root action.\nUI:N - No user interaction is required \u2014 the attacker can trigger the entire sequence (WiFi connection, link activation, disconnection, interface change) programmatically.\nS:U - The vulnerability and its impact are both within the kernel's WiFi driver subsystem \u2014 no security boundary is crossed.\nC:H - The use-after-free allows reading freed memory that may be reallocated with sensitive data, providing arbitrary kernel memory read primitives through heap spraying techniques.\nI:H - The use-after-free enables heap spraying to control the freed mld_vif object, providing write primitives and potential control flow hijacking for arbitrary code execution in kernel context.\nA:H - The use-after-free will cause a kernel crash (oops/panic) when the delayed work accesses the freed mld_vif structure through container_of."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/intel/iwlwifi/mld/iface.c", "drivers/net/wireless/intel/iwlwifi/mld/mac80211.c"], "versions": [{"version": "9748ad82a9d92b036ff3115207e36e2b9932e354", "lessThan": "9b9f52f052f4953fecd2190ae2dde3aa76d10962", "status": "affected", "versionType": "git"}, {"version": "9748ad82a9d92b036ff3115207e36e2b9932e354", "lessThan": "5ff641011ab7fb63ea101251087745d9826e8ef5", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/intel/iwlwifi/mld/iface.c", 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This vulnerability occurs because a specific work item, `mlo_scan_start_wk`, is not properly canceled when a network device disconnects. This oversight can lead to a use-after-free condition, where the system attempts to access memory that has already been released. 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This will disable Wi-Fi functionality on the system. \n\nCreate a file named `/etc/modprobe.d/blacklist-iwlwifi.conf` with the following content:\n```\nblacklist iwlwifi\n```\n\nAfter creating the file, a system reboot is required for the changes to take effect."}], "x_adpType": "supplier", "x_generator": {"engine": "sadp-cli 1.0.0"}, "providerMetadata": {"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-09-14T12:04:29.200Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-23185", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:06:45.500060Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T18:25:34.589Z"}}]}}

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"matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*", "matchCriteriaId": "13580667-0A98-40CC-B29F-D12790B91BDB", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*", "matchCriteriaId": "CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*", "matchCriteriaId": "3EF854A1-ABB1-4E93-BE9A-44569EC76C0D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*", "matchCriteriaId": "F5DC0CA6-F0AF-4DDF-A882-3DADB9A886A7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*", "matchCriteriaId": "EB5B7DFC-C36B-45D8-922C-877569FDDF43", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mld: cancel mlo_scan_start_wk\n\nmlo_scan_start_wk is not canceled on disconnection. In fact, it is not\ncanceled anywhere except in the restart cleanup, where we don't really\nhave to.\n\nThis can cause an init-after-queue issue: if, for example, the work was\nqueued and then drv_change_interface got executed.\n\nThis can also cause use-after-free: if the work is executed after the\nvif is freed."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nwifi: iwlwifi: mld: cancelar mlo_scan_start_wk\n\nmlo_scan_start_wk no se cancela en la desconexi\u00f3n. De hecho, no se\ncancela en ning\u00fan otro lugar excepto en la limpieza de reinicio, donde\nrealmente no es necesario.\n\nEsto puede causar un problema de inicializaci\u00f3n despu\u00e9s de la cola: si,\npor ejemplo, el trabajo fue puesto en cola y luego se ejecut\u00f3\ndrv_change_interface.\n\nEsto tambi\u00e9n puede causar uso despu\u00e9s de liberaci\u00f3n: si el trabajo se\nejecuta despu\u00e9s de que se libera el vif."}], "id": "CVE-2026-23185", "lastModified": "2026-10-19T19:17:40.723", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"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"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-23185", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:06:45.500060Z", "version": "2.0.3"}}]}, "published": "2026-02-14T17:15:56.273", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5ff641011ab7fb63ea101251087745d9826e8ef5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9b9f52f052f4953fecd2190ae2dde3aa76d10962"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/security/cve/CVE-2026-23185"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2439925"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23185.json"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-772"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: wifi: iwlwifi: mld: cancel mlo_scan_start_wk", "id": "2439925", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2439925"}, "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: iwlwifi: mld: cancel mlo_scan_start_wk\nmlo_scan_start_wk is not canceled on disconnection. In fact, it is not\ncanceled anywhere except in the restart cleanup, where we don't really\nhave to.\nThis can cause an init-after-queue issue: if, for example, the work was\nqueued and then drv_change_interface got executed.\nThis can also cause use-after-free: if the work is executed after the\nvif is freed."], "name": "CVE-2026-23185", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-02-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23185\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23185\nhttps://lore.kernel.org/linux-cve-announce/2026021431-CVE-2026-23185-7d56@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9748ad82a9d92b036ff3115207e36e2b9932e354,9b9f52f052f4953fecd2190ae2dde3aa76d10962)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9748ad82a9d92b036ff3115207e36e2b9932e354,5ff641011ab7fb63ea101251087745d9826e8ef5)"}}], "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.17"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.17)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.10,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.19,*]"}}], "product": "linux_kernel", "vendor": "linux"}], "created": "2026-02-16T09:43:50.524844+00:00", "updated": "2026-08-14T04:15:03.573313+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}