{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46125","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.099Z","datePublished":"2026-05-28T09:35:39.809Z","dateUpdated":"2026-08-05T12:29:54.918Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T12:29:54.918Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: remove station if connection prep fails\n\nIf connection preparation fails for MLO connections, then the\ninterface is completely reset to non-MLD. In this case, we must\nnot keep the station since it's related to the link of the vif\nbeing removed. Delete an existing station. Any \"new_sta\" is\nalready being removed, so that doesn't need changes.\n\nThis fixes a use-after-free/double-free in debugfs if that's\nenabled, because a vif going from MLD (and to MLD, but that's\nnot relevant here) recreates its entire debugfs."}],"metrics":[{"cvssV3_1":{"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"},"scenarios":[{"lang":"en","value":"AV:A - The bug is in mac80211 station-side MLME, triggered by a malicious/rogue AP that the station attempts an MLO association with; WiFi requires the attacker to be within radio range (same wireless segment).\nAC:L - A rogue AP can reliably let authentication create the station and then craft association/channel parameters that fail connection prep on the MLO path, repeatably; the required CONFIG_MAC80211_DEBUGFS is commonly enabled.\nPR:N - 802.11 authentication/association management frames are processed before any credential proof (4-way handshake/SAE), so a rogue AP reaches this path without holding any credentials on the victim.\nUI:N - Stations auto-reconnect to saved networks, so an attacker spoofing a known SSID drives the connection (and the failing MLO assoc) with no user action.\nS:U - The corruption stays within the kernel's own memory/security authority with no boundary crossing such as VM or IOMMU escape.\nC:H - A use-after-free over the freed station/link-debugfs objects can be leveraged for attacker-controlled reads of kernel memory.\nI:H - The use-after-free/double-free enables heap grooming and write primitives that can corrupt adjacent kernel state and hijack control flow.\nA:H - The use-after-free/double-free reliably causes kernel oops/panic, a full denial of service."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/mlme.c"],"versions":[{"version":"81151ce462e533551f3284bfdb8e0f461c9220e6","lessThan":"18fed0a209500bfea5c4c08609ec93855e4e500b","status":"affected","versionType":"git"},{"version":"81151ce462e533551f3284bfdb8e0f461c9220e6","lessThan":"fe75fa1ac9a92990f7fc3d34b17808fd933071b2","status":"affected","versionType":"git"},{"version":"81151ce462e533551f3284bfdb8e0f461c9220e6","lessThan":"afcbaed89cdc1a001b43270cbf5394bb4804270a","status":"affected","versionType":"git"},{"version":"81151ce462e533551f3284bfdb8e0f461c9220e6","lessThan":"9e28654f79f443bca9b29ff3ae7cf18abfba58a0","status":"affected","versionType":"git"},{"version":"81151ce462e533551f3284bfdb8e0f461c9220e6","lessThan":"1c2b72ea89882aeb948340498391e69c58d466f1","status":"affected","versionType":"git"},{"version":"81151ce462e533551f3284bfdb8e0f461c9220e6","lessThan":"283fc9e44ff5b5ac967439b4951b80bd4299f4e4","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/mlme.c"],"versions":[{"version":"6.0","status":"affected"},{"version":"0","lessThan":"6.0","status":"unaffected","versionType":"semver"},{"version":"6.1.176","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.140","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.88","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.30","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.7","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","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":"6.0","versionEndExcluding":"6.1.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.140"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.12.88"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.18.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.0.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/18fed0a209500bfea5c4c08609ec93855e4e500b"},{"url":"https://git.kernel.org/stable/c/fe75fa1ac9a92990f7fc3d34b17808fd933071b2"},{"url":"https://git.kernel.org/stable/c/afcbaed89cdc1a001b43270cbf5394bb4804270a"},{"url":"https://git.kernel.org/stable/c/9e28654f79f443bca9b29ff3ae7cf18abfba58a0"},{"url":"https://git.kernel.org/stable/c/1c2b72ea89882aeb948340498391e69c58d466f1"},{"url":"https://git.kernel.org/stable/c/283fc9e44ff5b5ac967439b4951b80bd4299f4e4"}],"title":"wifi: 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When Multi-Link Operation (MLO) connection preparation fails, the system may not correctly remove the associated station. This can lead to a use-after-free or double-free vulnerability in the debugfs component, potentially causing system instability or unexpected behavior."}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Important"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-825","description":"Expired Pointer Dereference","lang":"en","type":"CWE"}]}],"references":[{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-46125"},{"name":"RHBZ#2482608","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2482608"},{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46125.json"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:27731"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:27288"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:26515"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:27735"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:27708"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:27789"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:26427"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:26563"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:26428"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:26462"}],"solutions":[{"lang":"en","value":"RHSA-2026:27731: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0), Red Hat Enterprise Linux Real Time EUS (v. 10.0), Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)"},{"lang":"en","value":"RHSA-2026:27288: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10), Red Hat Enterprise Linux Real Time (v. 10), Red Hat Enterprise Linux Real Time for NFV (v. 10)"},{"lang":"en","value":"RHSA-2026:26515: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux BaseOS E4S (v.9.2)"},{"lang":"en","value":"RHSA-2026:27735: Red Hat Enterprise Linux AppStream E4S (v.9.4), Red Hat Enterprise Linux BaseOS E4S (v.9.4), Red Hat Enterprise Linux Real Time E4S (v.9.4), Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4)"},{"lang":"en","value":"RHSA-2026:27708: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6), Red Hat Enterprise Linux Real Time EUS (v.9.6), Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)"},{"lang":"en","value":"RHSA-2026:27789: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9), Red Hat Enterprise Linux Real Time (v. 9), Red Hat Enterprise Linux Real Time for NFV (v. 9)"},{"lang":"en","value":"RHSA-2026:26427: Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux CRB (v. 8)"},{"lang":"en","value":"RHSA-2026:26563: Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS TUS (v.8.8)"},{"lang":"en","value":"RHSA-2026:26428: Red Hat Enterprise Linux NFV (v. 8), Red Hat Enterprise Linux RT (v. 8)"},{"lang":"en","value":"RHSA-2026:26462: Red Hat Enterprise Linux Real Time E4S (v.9.2), Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)"}],"timeline":[{"lang":"en","time":"2026-05-28T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-05-28T00:00:00.000Z","value":"Made public."}],"title":"kernel: wifi: mac80211: remove station if connection prep fails","x_adpType":"supplier","x_generator":{"engine":"sadp-cli 1.0.0"},"providerMetadata":{"orgId":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","shortName":"redhat-SADP","dateUpdated":"2026-07-15T00:51:27.525Z"}}]}}