CVE-2026-64574

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64574", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.797Z", "datePublished": "2026-08-05T08:08:10.272Z", "dateUpdated": "2026-10-19T20:48:42.499Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T04:57:54.008Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: tear down new links on vif update error path\n\nWhen ieee80211_vif_update_links() adds new links it allocates a link\ncontainer for each and calls ieee80211_link_init() (which registers the\nper-link debugfs files with file->private_data pointing into the container)\nand ieee80211_link_setup(). If the subsequent drv_change_vif_links() fails,\nthe error path restores the old pointers and jumps to 'free', which frees\nthe new containers but never removes their debugfs entries or stops the\nlinks. The debugfs files survive with file->private_data dangling at the\nfreed container, so a later open()+read() (e.g. link-1/txpower)\ndereferences freed memory in ieee80211_if_read_link(), a use-after-free.\n\nThe removal path already dismantles links correctly via\nieee80211_tear_down_links(), which removes each link's keys and debugfs\nentries and calls ieee80211_link_stop(); the add path on the error branch\ndoes not. Commit be1ba9ed221f (\"wifi: mac80211: avoid weird state in error\npath\") hardened this same error path for the link-removal case\n(new_links == 0) but left the newly-added links' teardown unaddressed.\n\ndrv_change_vif_links() can fail at runtime on MLO drivers (internal\nallocation / queue / firmware command failures).\n\nRemove the new links' debugfs entries and stop them before freeing.\n\n BUG: KASAN: slab-use-after-free in ieee80211_if_read_link (net/mac80211/debugfs_netdev.c:127)\n Read of size 8 at addr ffff888011290000 by task exploit/145\n Call Trace:\n ...\n ieee80211_if_read_link (net/mac80211/debugfs_netdev.c:127)\n short_proxy_read (fs/debugfs/file.c:373)\n vfs_read (fs/read_write.c:572)\n ksys_read (fs/read_write.c:716)\n do_syscall_64 (arch/x86/entry/syscall_64.c:94)\n entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)\n ...\n Oops: general protection fault, probably for non-canonical address 0xdffffc000000000a\n RIP: 0010:ieee80211_if_read_link (net/mac80211/debugfs_netdev.c:127)\n Kernel panic - not syncing: Fatal exception"}], "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 bug is reached via local nl80211 link updates (NL80211_CMD_ADD_LINK / ieee80211_vif_set_links \u2192 ieee80211_vif_update_links) and completed by a local debugfs open/read of the dangling per-link file, not by processing over-the-air frames alone.\nAC:L - An attacker can reliably force the error path by adding an MLO AP link whose MAC duplicates an existing link so ieee80211_check_dup_link_addrs() fails after ieee80211_link_init() already registered debugfs, then read the leftover file; no attacker-independent condition is required.\nPR:L - NL80211_CMD_ADD_LINK is gated by GENL_UNS_ADMIN_PERM (CAP_NET_ADMIN in the netns user_ns), which an unprivileged user can obtain via user/net namespaces or common WiFi management paths, so privileges are Low rather than init-namespace root.\nUI:N - The attacker issues the nl80211 ADD_LINK sequence and the subsequent debugfs read themselves; no separate victim action such as mounting a filesystem or opening a hostile file is required.\nS:U - The use-after-free and resulting kernel memory corruption stay within the host mac80211/debugfs authority and do not cross a VM, IOMMU, or other separate security boundary.\nC:H - Dangling debugfs file->private_data points at the freed link_container; reading it (ieee80211_if_read_link) is a slab use-after-free that can be reclaimed/sprayed for arbitrary kernel memory disclosure.\nI:H - The same freed link object is the debugfs private_data for readable/writable per-link files, so UAF reclaim enables attacker-controlled structure contents and control-flow hijack consistent with kernel UAF integrity High.\nA:H - The fix commit\u2019s KASAN slab-use-after-free in ieee80211_if_read_link leads to a general protection fault and kernel panic, so availability impact is High even without full exploitation."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mac80211/link.c"], "versions": [{"version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "lessThan": "329589417214d3b7221432e5b266ed2bba7ff674", "status": "affected", "versionType": "git"}, {"version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "lessThan": "c57d97f381306bbfba174e8f708419e007824e0c", "status": "affected", "versionType": "git"}, {"version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "lessThan": "0f7eaeb950adb77f71beb546e5ab30f90b41fe6f", "status": "affected", "versionType": "git"}, {"version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "lessThan": "901a73523e093beff123b54b1ceaf3113f18acc9", "status": "affected", "versionType": "git"}, {"version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "lessThan": "952c02b33f56207a160421bcd61e7ac53c9c59ae", "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/link.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.4", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/329589417214d3b7221432e5b266ed2bba7ff674"}, {"url": "https://git.kernel.org/stable/c/c57d97f381306bbfba174e8f708419e007824e0c"}, {"url": "https://git.kernel.org/stable/c/0f7eaeb950adb77f71beb546e5ab30f90b41fe6f"}, {"url": "https://git.kernel.org/stable/c/901a73523e093beff123b54b1ceaf3113f18acc9"}, {"url": "https://git.kernel.org/stable/c/952c02b33f56207a160421bcd61e7ac53c9c59ae"}], "title": "wifi: mac80211: tear down new links on vif update error path", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-64574", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:43:06.568130Z"}}}], "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": "2026-10-19T20:48:42.499Z"}}]}}

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no attacker-independent condition is required.\nPR:L - NL80211_CMD_ADD_LINK is gated by GENL_UNS_ADMIN_PERM (CAP_NET_ADMIN in the netns user_ns), which an unprivileged user can obtain via user/net namespaces or common WiFi management paths, so privileges are Low rather than init-namespace root.\nUI:N - The attacker issues the nl80211 ADD_LINK sequence and the subsequent debugfs read themselves; no separate victim action such as mounting a filesystem or opening a hostile file is required.\nS:U - The use-after-free and resulting kernel memory corruption stay within the host mac80211/debugfs authority and do not cross a VM, IOMMU, or other separate security boundary.\nC:H - Dangling debugfs file->private_data points at the freed link_container; reading it (ieee80211_if_read_link) is a slab use-after-free that can be reclaimed/sprayed for arbitrary kernel memory disclosure.\nI:H - The same freed link object is the debugfs private_data for readable/writable per-link files, so UAF reclaim enables attacker-controlled structure contents and control-flow hijack consistent with kernel UAF integrity High.\nA:H - The fix commit\u2019s KASAN slab-use-after-free in ieee80211_if_read_link leads to a general protection fault and kernel panic, so availability impact is High even without full exploitation."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "lessThan": "329589417214d3b7221432e5b266ed2bba7ff674", "versionType": "git"}, {"status": "affected", "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "lessThan": "c57d97f381306bbfba174e8f708419e007824e0c", "versionType": "git"}, {"status": "affected", "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "lessThan": "0f7eaeb950adb77f71beb546e5ab30f90b41fe6f", "versionType": "git"}, {"status": "affected", "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "lessThan": "901a73523e093beff123b54b1ceaf3113f18acc9", "versionType": "git"}, {"status": "affected", "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "lessThan": "952c02b33f56207a160421bcd61e7ac53c9c59ae", "versionType": "git"}], "programFiles": ["net/mac80211/link.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.4"}, {"status": "unaffected", "version": "0", "lessThan": "6.4", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.148", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.101", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.42", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.6", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/mac80211/link.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/329589417214d3b7221432e5b266ed2bba7ff674"}, {"url": "https://git.kernel.org/stable/c/c57d97f381306bbfba174e8f708419e007824e0c"}, {"url": "https://git.kernel.org/stable/c/0f7eaeb950adb77f71beb546e5ab30f90b41fe6f"}, {"url": "https://git.kernel.org/stable/c/901a73523e093beff123b54b1ceaf3113f18acc9"}, {"url": "https://git.kernel.org/stable/c/952c02b33f56207a160421bcd61e7ac53c9c59ae"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: tear down new links on vif update error path\n\nWhen ieee80211_vif_update_links() adds new links it allocates a link\ncontainer for each and calls ieee80211_link_init() (which registers the\nper-link debugfs files with file->private_data pointing into the container)\nand ieee80211_link_setup(). If the subsequent drv_change_vif_links() fails,\nthe error path restores the old pointers and jumps to 'free', which frees\nthe new containers but never removes their debugfs entries or stops the\nlinks. The debugfs files survive with file->private_data dangling at the\nfreed container, so a later open()+read() (e.g. link-1/txpower)\ndereferences freed memory in ieee80211_if_read_link(), a use-after-free.\n\nThe removal path already dismantles links correctly via\nieee80211_tear_down_links(), which removes each link's keys and debugfs\nentries and calls ieee80211_link_stop(); the add path on the error branch\ndoes not. Commit be1ba9ed221f (\"wifi: mac80211: avoid weird state in error\npath\") hardened this same error path for the link-removal case\n(new_links == 0) but left the newly-added links' teardown unaddressed.\n\ndrv_change_vif_links() can fail at runtime on MLO drivers (internal\nallocation / queue / firmware command failures).\n\nRemove the new links' debugfs entries and stop them before freeing.\n\n BUG: KASAN: slab-use-after-free in ieee80211_if_read_link (net/mac80211/debugfs_netdev.c:127)\n Read of size 8 at addr ffff888011290000 by task exploit/145\n Call Trace:\n ...\n ieee80211_if_read_link (net/mac80211/debugfs_netdev.c:127)\n short_proxy_read (fs/debugfs/file.c:373)\n vfs_read (fs/read_write.c:572)\n ksys_read (fs/read_write.c:716)\n do_syscall_64 (arch/x86/entry/syscall_64.c:94)\n entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)\n ...\n Oops: general protection fault, probably for non-canonical address 0xdffffc000000000a\n RIP: 0010:ieee80211_if_read_link (net/mac80211/debugfs_netdev.c:127)\n Kernel panic - not syncing: Fatal exception"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.148", "versionStartIncluding": "6.4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.101", "versionStartIncluding": "6.4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.42", "versionStartIncluding": "6.4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.6", "versionStartIncluding": "6.4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "6.4"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T04:57:54.008Z"}}}, "cveMetadata": {"cveId": "CVE-2026-64574", "state": "PUBLISHED", "dateUpdated": "2026-10-19T20:48:42.499Z", "dateReserved": "2026-07-19T15:36:31.797Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-05T08:08:10.272Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/mac80211/link.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "329589417214d3b7221432e5b266ed2bba7ff674", "status": "affected", "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "versionType": "git"}, {"lessThan": "c57d97f381306bbfba174e8f708419e007824e0c", "status": "affected", "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "versionType": "git"}, {"lessThan": "0f7eaeb950adb77f71beb546e5ab30f90b41fe6f", "status": "affected", "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "versionType": "git"}, {"lessThan": "901a73523e093beff123b54b1ceaf3113f18acc9", "status": "affected", "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "versionType": "git"}, {"lessThan": "952c02b33f56207a160421bcd61e7ac53c9c59ae", "status": "affected", "version": "170cd6a66d9a164180eb4dc72d50afa6ce1ce566", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/mac80211/link.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.4"}, {"lessThan": "6.4", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: tear down new links on vif update error path\n\nWhen ieee80211_vif_update_links() adds new links it allocates a link\ncontainer for each and calls ieee80211_link_init() (which registers the\nper-link debugfs files with file->private_data pointing into the container)\nand ieee80211_link_setup(). If the subsequent drv_change_vif_links() fails,\nthe error path restores the old pointers and jumps to 'free', which frees\nthe new containers but never removes their debugfs entries or stops the\nlinks. The debugfs files survive with file->private_data dangling at the\nfreed container, so a later open()+read() (e.g. link-1/txpower)\ndereferences freed memory in ieee80211_if_read_link(), a use-after-free.\n\nThe removal path already dismantles links correctly via\nieee80211_tear_down_links(), which removes each link's keys and debugfs\nentries and calls ieee80211_link_stop(); the add path on the error branch\ndoes not. Commit be1ba9ed221f (\"wifi: mac80211: avoid weird state in error\npath\") hardened this same error path for the link-removal case\n(new_links == 0) but left the newly-added links' teardown unaddressed.\n\ndrv_change_vif_links() can fail at runtime on MLO drivers (internal\nallocation / queue / firmware command failures).\n\nRemove the new links' debugfs entries and stop them before freeing.\n\n BUG: KASAN: slab-use-after-free in ieee80211_if_read_link (net/mac80211/debugfs_netdev.c:127)\n Read of size 8 at addr ffff888011290000 by task exploit/145\n Call Trace:\n ...\n ieee80211_if_read_link (net/mac80211/debugfs_netdev.c:127)\n short_proxy_read (fs/debugfs/file.c:373)\n vfs_read (fs/read_write.c:572)\n ksys_read (fs/read_write.c:716)\n do_syscall_64 (arch/x86/entry/syscall_64.c:94)\n entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)\n ...\n Oops: general protection fault, probably for non-canonical address 0xdffffc000000000a\n RIP: 0010:ieee80211_if_read_link (net/mac80211/debugfs_netdev.c:127)\n Kernel panic - not syncing: Fatal exception"}], "id": "CVE-2026-64574", "lastModified": "2026-10-19T21:17:47.677", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-64574", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:43:06.568130Z", "version": "2.0.3"}}]}, "published": "2026-08-05T08:16:37.203", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0f7eaeb950adb77f71beb546e5ab30f90b41fe6f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/329589417214d3b7221432e5b266ed2bba7ff674"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/901a73523e093beff123b54b1ceaf3113f18acc9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/952c02b33f56207a160421bcd61e7ac53c9c59ae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c57d97f381306bbfba174e8f708419e007824e0c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: wifi: mac80211: tear down new links on vif update error path", "id": "2511407", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511407"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel's `mac80211` Wi-Fi subsystem. When new Wi-Fi links are added, an error in the update process can cause debugfs entries to point to memory that has already been freed. A local attacker can exploit this use-after-free vulnerability by accessing these dangling debugfs entries, which can lead to a system crash and a denial of service."], "name": "CVE-2026-64574", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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": "2026-08-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64574\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64574\nhttps://lore.kernel.org/linux-cve-announce/2026080500-CVE-2026-64574-f7a5@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[170cd6a66d9a164180eb4dc72d50afa6ce1ce566,329589417214d3b7221432e5b266ed2bba7ff674)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[170cd6a66d9a164180eb4dc72d50afa6ce1ce566,c57d97f381306bbfba174e8f708419e007824e0c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[170cd6a66d9a164180eb4dc72d50afa6ce1ce566,0f7eaeb950adb77f71beb546e5ab30f90b41fe6f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[170cd6a66d9a164180eb4dc72d50afa6ce1ce566,901a73523e093beff123b54b1ceaf3113f18acc9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[170cd6a66d9a164180eb4dc72d50afa6ce1ce566,952c02b33f56207a160421bcd61e7ac53c9c59ae)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.4"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.4)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc5,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-05T09:45:06.853163+00:00", "updated": "2026-10-20T04:30:09.460411+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416", "CWE-825"]}