{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2025-38643", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-38643", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-08-22T16:00:49.172Z", "updatedAt": "2026-10-15T22:02:27.338Z", "importedAt": "2026-10-24T01:57:34.152Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()\n\nCallers of wdev_chandef() must hold the wiphy mutex.\n\nBut the worker cfg80211_propagate_cac_done_wk() never takes the lock.\nWhich triggers the warning below with the mesh_peer_connected_dfs\ntest from hostapd and not (yet) released mac80211 code changes:\n\nWARNING: CPU: 0 PID: 495 at net/wireless/chan.c:1552 wdev_chandef+0x60/0x165\nModules linked in:\nCPU: 0 UID: 0 PID: 495 Comm: kworker/u4:2 Not tainted 6.14.0-rc5-wt-g03960e6f9d47 #33 13c287eeabfe1efea01c0bcc863723ab082e17cf\nWorkqueue: cfg80211 cfg80211_propagate_cac_done_wk\nStack:\n 00000000 00000001 ffffff00 6093267c\n 00000000 6002ec30 6d577c50 60037608\n 00000000 67e8d108 6063717b 00000000\nCall Trace:\n [<6002ec30>] ? _printk+0x0/0x98\n [<6003c2b3>] show_stack+0x10e/0x11a\n [<6002ec30>] ? _printk+0x0/0x98\n [<60037608>] dump_stack_lvl+0x71/0xb8\n [<6063717b>] ? wdev_chandef+0x60/0x165\n [<6003766d>] dump_stack+0x1e/0x20\n [<6005d1b7>] __warn+0x101/0x20f\n [<6005d3a8>] warn_slowpath_fmt+0xe3/0x15d\n [<600b0c5c>] ? mark_lock.part.0+0x0/0x4ec\n [<60751191>] ? __this_cpu_preempt_check+0x0/0x16\n [<600b11a2>] ? mark_held_locks+0x5a/0x6e\n [<6005d2c5>] ? warn_slowpath_fmt+0x0/0x15d\n [<60052e53>] ? unblock_signals+0x3a/0xe7\n [<60052f2d>] ? um_set_signals+0x2d/0x43\n [<60751191>] ? __this_cpu_preempt_check+0x0/0x16\n [<607508b2>] ? lock_is_held_type+0x207/0x21f\n [<6063717b>] wdev_chandef+0x60/0x165\n [<605f89b4>] regulatory_propagate_dfs_state+0x247/0x43f\n [<60052f00>] ? um_set_signals+0x0/0x43\n [<605e6bfd>] cfg80211_propagate_cac_done_wk+0x3a/0x4a\n [<6007e460>] process_scheduled_works+0x3bc/0x60e\n [<6007d0ec>] ? move_linked_works+0x4d/0x81\n [<6007d120>] ? assign_work+0x0/0xaa\n [<6007f81f>] worker_thread+0x220/0x2dc\n [<600786ef>] ? set_pf_worker+0x0/0x57\n [<60087c96>] ? to_kthread+0x0/0x43\n [<6008ab3c>] kthread+0x2d3/0x2e2\n [<6007f5ff>] ? worker_thread+0x0/0x2dc\n [<6006c05b>] ? calculate_sigpending+0x0/0x56\n [<6003b37d>] new_thread_handler+0x4a/0x64\nirq event stamp: 614611\nhardirqs last enabled at (614621): [<00000000600bc96b>] __up_console_sem+0x82/0xaf\nhardirqs last disabled at (614630): [<00000000600bc92c>] __up_console_sem+0x43/0xaf\nsoftirqs last enabled at (614268): [<00000000606c55c6>] __ieee80211_wake_queue+0x933/0x985\nsoftirqs last disabled at (614266): [<00000000606c52d6>] __ieee80211_wake_queue+0x643/0x985", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d", "status": "affected", "versionType": "git", "lessThan": "defe9ce121160788547e8e6ec4438ad8a14f40dd" }, { "version": "26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d", "status": "affected", "versionType": "git", "lessThan": "b3d24038eb775f2f7a1dfef58d8e1dc444a12820" }, { "version": "26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d", "status": "affected", "versionType": "git", "lessThan": "4a63523d3541eef4cf504a9682e6fbe94ffe79a6" }, { "version": "26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d", "status": "affected", "versionType": "git", "lessThan": "7022df2248c08c6f75a01714163ac902333bf3db" }, { "version": "26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d", "status": "affected", "versionType": "git", "lessThan": "dbce810607726408f889d3358f4780fd1436861e" }, { "version": "26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d", "status": "affected", "versionType": "git", "lessThan": "2c5dee15239f3f3e31aa5c8808f18996c039e2c1" }, { "version": "2dbb6faebb94d6d5ae87e5ea6be9280c366393e1", "status": "affected", "versionType": "git" }, { "version": "a4f85674e4693904ade7cbf6722d0d105d8062d8", "status": "affected", "versionType": "git" }, { "version": "e233cbaf8ecc5859f0417dd53899da4edb477991", "status": "affected", "versionType": "git" }, { "version": "4.14.170", "status": "affected", "versionType": "semver", "lessThan": "4.15" }, { "version": "4.19.102", "status": "affected", "versionType": "semver", "lessThan": "4.20" }, { "version": "5.4.18", "status": "affected", "versionType": "semver", "lessThan": "5.5" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.5", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.5" }, { "version": "6.1.164", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.118", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.57", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.15.10", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.15.*" }, { "version": "6.16.1", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.16.*" }, { "version": "6.17", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }