{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-23185", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.984Z", "datePublished": "2026-02-14T16:27:14.815Z", "dateUpdated": "2026-08-05T12:20:32.502Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:20:32.502Z" }, "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." } ], "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 — 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 — 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 — 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", "drivers/net/wireless/intel/iwlwifi/mld/mac80211.c" ], "versions": [ { "version": "6.17", "status": "affected" }, { "version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.10", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.18.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/9b9f52f052f4953fecd2190ae2dde3aa76d10962" }, { "url": "https://git.kernel.org/stable/c/5ff641011ab7fb63ea101251087745d9826e8ef5" } ], "title": "wifi: iwlwifi: mld: cancel mlo_scan_start_wk", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "affected": [ { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:10" ], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:6" ], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 6", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:7" ], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:7" ], "defaultStatus": "unaffected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:8" ], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:8" ], "defaultStatus": "unaffected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:9" ], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:9" ], "defaultStatus": "affected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat" } ], "datePublic": "2026-02-14T00:00:00.000Z", "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." } ], "metrics": [ { "other": { "content": { "namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "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" }, "format": "CVSS" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-772", "description": "Missing Release of Resource after Effective Lifetime", "lang": "en", "type": "CWE" } ] } ], "references": [ { "tags": [ "vdb-entry", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/security/cve/CVE-2026-23185" }, { "name": "RHBZ#2439925", "tags": [ "issue-tracking", "x_refsource_REDHAT" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2439925" }, { "tags": [ "x_sadp-csaf-vex" ], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23185.json" } ], "timeline": [ { "lang": "en", "time": "2026-02-14T00:00:00.000Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-02-14T00:00:00.000Z", "value": "Made public." } ], "title": "kernel: wifi: iwlwifi: mld: cancel mlo_scan_start_wk", "x_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-07-15T01:18:47.870Z" } } ] } }