{"api_version":"1","generated_at":"2026-08-02T06:44:14+00:00","cve":"CVE-2025-38643","urls":{"html":"https://cve.report/CVE-2025-38643","api":"https://cve.report/api/cve/CVE-2025-38643.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-38643","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-38643"},"summary":{"title":"wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()","description":"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","state":"PUBLISHED","assigner":"Linux","published_at":"2025-08-22 16:15:38","updated_at":"2026-07-30 06:23:32"},"problem_types":["CWE-667"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"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","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/dbce810607726408f889d3358f4780fd1436861e","name":"https://git.kernel.org/stable/c/dbce810607726408f889d3358f4780fd1436861e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b3d24038eb775f2f7a1dfef58d8e1dc444a12820","name":"https://git.kernel.org/stable/c/b3d24038eb775f2f7a1dfef58d8e1dc444a12820","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/defe9ce121160788547e8e6ec4438ad8a14f40dd","name":"https://git.kernel.org/stable/c/defe9ce121160788547e8e6ec4438ad8a14f40dd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2c5dee15239f3f3e31aa5c8808f18996c039e2c1","name":"https://git.kernel.org/stable/c/2c5dee15239f3f3e31aa5c8808f18996c039e2c1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7022df2248c08c6f75a01714163ac902333bf3db","name":"https://git.kernel.org/stable/c/7022df2248c08c6f75a01714163ac902333bf3db","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4a63523d3541eef4cf504a9682e6fbe94ffe79a6","name":"https://git.kernel.org/stable/c/4a63523d3541eef4cf504a9682e6fbe94ffe79a6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-38643","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38643","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d defe9ce121160788547e8e6ec4438ad8a14f40dd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d b3d24038eb775f2f7a1dfef58d8e1dc444a12820 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d 4a63523d3541eef4cf504a9682e6fbe94ffe79a6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d 7022df2248c08c6f75a01714163ac902333bf3db git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d dbce810607726408f889d3358f4780fd1436861e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d 2c5dee15239f3f3e31aa5c8808f18996c039e2c1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2dbb6faebb94d6d5ae87e5ea6be9280c366393e1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a4f85674e4693904ade7cbf6722d0d105d8062d8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e233cbaf8ecc5859f0417dd53899da4edb477991 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.14.170 4.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.19.102 4.20 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.4.18 5.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.5","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.164 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.118 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.57 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15.10 6.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.16.1 6.16.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2025","cve_id":"38643","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/wireless/reg.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"defe9ce121160788547e8e6ec4438ad8a14f40dd","status":"affected","version":"26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d","versionType":"git"},{"lessThan":"b3d24038eb775f2f7a1dfef58d8e1dc444a12820","status":"affected","version":"26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d","versionType":"git"},{"lessThan":"4a63523d3541eef4cf504a9682e6fbe94ffe79a6","status":"affected","version":"26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d","versionType":"git"},{"lessThan":"7022df2248c08c6f75a01714163ac902333bf3db","status":"affected","version":"26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d","versionType":"git"},{"lessThan":"dbce810607726408f889d3358f4780fd1436861e","status":"affected","version":"26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d","versionType":"git"},{"lessThan":"2c5dee15239f3f3e31aa5c8808f18996c039e2c1","status":"affected","version":"26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d","versionType":"git"},{"status":"affected","version":"2dbb6faebb94d6d5ae87e5ea6be9280c366393e1","versionType":"git"},{"status":"affected","version":"a4f85674e4693904ade7cbf6722d0d105d8062d8","versionType":"git"},{"status":"affected","version":"e233cbaf8ecc5859f0417dd53899da4edb477991","versionType":"git"},{"lessThan":"4.15","status":"affected","version":"4.14.170","versionType":"semver"},{"lessThan":"4.20","status":"affected","version":"4.19.102","versionType":"semver"},{"lessThan":"5.5","status":"affected","version":"5.4.18","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/wireless/reg.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.5"},{"lessThan":"5.5","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.164","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.118","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.57","versionType":"semver"},{"lessThanOrEqual":"6.15.*","status":"unaffected","version":"6.15.10","versionType":"semver"},{"lessThanOrEqual":"6.16.*","status":"unaffected","version":"6.16.1","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.17","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.164","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.118","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.57","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.15.10","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.16.1","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.17","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.170","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.102","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.18","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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"}],"metrics":[{"cvssV3_1":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-07-30T05:56:08.156Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/defe9ce121160788547e8e6ec4438ad8a14f40dd"},{"url":"https://git.kernel.org/stable/c/b3d24038eb775f2f7a1dfef58d8e1dc444a12820"},{"url":"https://git.kernel.org/stable/c/4a63523d3541eef4cf504a9682e6fbe94ffe79a6"},{"url":"https://git.kernel.org/stable/c/7022df2248c08c6f75a01714163ac902333bf3db"},{"url":"https://git.kernel.org/stable/c/dbce810607726408f889d3358f4780fd1436861e"},{"url":"https://git.kernel.org/stable/c/2c5dee15239f3f3e31aa5c8808f18996c039e2c1"}],"title":"wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2025-38643","datePublished":"2025-08-22T16:00:49.172Z","dateReserved":"2025-04-16T04:51:24.030Z","dateUpdated":"2026-07-30T05:56:08.156Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-08-22 16:15:38","lastModifiedDate":"2026-07-30 06:23:32","problem_types":["CWE-667"],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"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","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.170","versionEndExcluding":"4.15","matchCriteriaId":"483F0C55-BD7E-4F22-87FA-B7E925185143"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.102","versionEndExcluding":"4.20","matchCriteriaId":"F43F85CE-735B-484D-A9C8-92AED3BFF162"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.18","versionEndExcluding":"5.5","matchCriteriaId":"96F6F65F-C278-4ADA-9DFF-7B7DE2F5E450"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5.1","versionEndExcluding":"6.6.118","matchCriteriaId":"901C09B3-81A4-4D6D-AB94-021EEC612417"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.57","matchCriteriaId":"32D87516-EE2C-40AC-B9CD-56534A895341"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.15.10","matchCriteriaId":"5890C690-B295-40C2-9121-FF5F987E5142"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.16.1","matchCriteriaId":"58182352-D7DF-4CC9-841E-03C1D852C3FB"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.5:-:*:*:*:*:*:*","matchCriteriaId":"EE98F46A-F7D9-4609-B6A0-882E7F0D378C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.5:rc7:*:*:*:*:*:*","matchCriteriaId":"3444D854-CE07-4D25-827A-ECF7BB58EA2D"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"38643","Ordinal":"1","Title":"wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()","CVE":"CVE-2025-38643","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"38643","Ordinal":"1","NoteData":"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","Type":"Description","Title":"wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()"}]}}}