- 8.8HighCVSS base score
- 0.20%Exploitation in 30 daysEPSS · top 90% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac() Callers of wdev_chandef() must hold the wiphy mutex. But the worker cfg80211_propagate_cac_done_wk() never takes the lock. Which triggers the warning below with the mesh_peer_connected_dfs test from hostapd and not (yet) released mac80211 code changes: WARNING: CPU: 0 PID: 495 at net/wireless/chan.c:1552 wdev_chandef+0x60/0x165 Modules linked in: CPU: 0 UID: 0 PID: 495 Comm: kworker/u4:2 Not tainted 6.14.0-rc5-wt-g03960e6f9d47 #33 13c287eeabfe1efea01c0bcc863723ab082e17cf Workqueue: cfg80211 cfg80211_propagate_cac_done_wk Stack: 00000000 00000001 ffffff00 6093267c 00000000 6002ec30 6d577c50 60037608 00000000 67e8d108 6063717b 00000000 Call Trace: [<6002ec30>] ? _printk+0x0/0x98 [<6003c2b3>] show_stack+0x10e/0x11a [<6002ec30>] ? _printk+0x0/0x98 [<60037608>] dump_stack_lvl+0x71/0xb8 [<6063717b>] ? wdev_chandef+0x60/0x165 [<6003766d>] dump_stack+0x1e/0x20 [<6005d1b7>] __warn+0x101/0x20f [<6005d3a8>] warn_slowpath_fmt+0xe3/0x15d [<600b0c5c>] ? mark_lock.part.0+0x0/0x4ec [<60751191>] ? __this_cpu_preempt_check+0x0/0x16 [<600b11a2>] ? mark_held_locks+0x5a/0x6e [<6005d2c5>] ? warn_slowpath_fmt+0x0/0x15d [<60052e53>] ? unblock_signals+0x3a/0xe7 [<60052f2d>] ? um_set_signals+0x2d/0x43 [<60751191>] ? __this_cpu_preempt_check+0x0/0x16 [<607508b2>] ? lock_is_held_type+0x207/0x21f [<6063717b>] wdev_chandef+0x60/0x165 [<605f89b4>] regulatory_propagate_dfs_state+0x247/0x43f [<60052f00>] ? um_set_signals+0x0/0x43 [<605e6bfd>] cfg80211_propagate_cac_done_wk+0x3a/0x4a [<6007e460>] process_scheduled_works+0x3bc/0x60e [<6007d0ec>] ? move_linked_works+0x4d/0x81 [<6007d120>] ? assign_work+0x0/0xaa [<6007f81f>] worker_thread+0x220/0x2dc [<600786ef>] ? set_pf_worker+0x0/0x57 [<60087c96>] ? to_kthread+0x0/0x43 [<6008ab3c>] kthread+0x2d3/0x2e2 [<6007f5ff>] ? worker_thread+0x0/0x2dc [<6006c05b>] ? calculate_sigpending+0x0/0x56 [<6003b37d>] new_thread_handler+0x4a/0x64 irq event stamp: 614611 hardirqs last enabled at (614621): [<00000000600bc96b>] __up_console_sem+0x82/0xaf hardirqs last disabled at (614630): [<00000000600bc92c>] __up_console_sem+0x43/0xaf softirqs last enabled at (614268): [<00000000606c55c6>] __ieee80211_wake_queue+0x933/0x985 softirqs last disabled at (614266): [<00000000606c52d6>] __ieee80211_wake_queue+0x643/0x985
Timeline
ID reserved
By Linux
- 4 months later
· 4 months later
Published
- 14 months later
· 14 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.20% · top 90% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
- affected 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d – < defe9ce121160788547e8e6ec4438ad8a14f40dd
- affected 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d – < b3d24038eb775f2f7a1dfef58d8e1dc444a12820
- affected 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d – < 4a63523d3541eef4cf504a9682e6fbe94ffe79a6
- affected 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d – < 7022df2248c08c6f75a01714163ac902333bf3db
- affected 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d – < dbce810607726408f889d3358f4780fd1436861e
- affected 26ec17a1dc5ecdd8d91aba63ead6f8b5ad5dea0d – < 2c5dee15239f3f3e31aa5c8808f18996c039e2c1
- affected 2dbb6faebb94d6d5ae87e5ea6be9280c366393e1
- affected a4f85674e4693904ade7cbf6722d0d105d8062d8
- affected e233cbaf8ecc5859f0417dd53899da4edb477991
- affected 4.14.170 – < 4.15
- affected 4.19.102 – < 4.20
- affected 5.4.18 – < 5.5
- affected 5.5
- unaffected < 5.5
- unaffected 6.1.164 – ≤ 6.1.*
- unaffected 6.6.118 – ≤ 6.6.*
- unaffected 6.12.57 – ≤ 6.12.*
- unaffected 6.15.10 – ≤ 6.15.*
- unaffected 6.16.1 – ≤ 6.16.*
- unaffected 6.17 – ≤ *
References
References6
- https://git.kernel.org/stable/c/defe9ce121160788547e8e6ec4438ad8a14f40dd (opens in a new tab)
- https://git.kernel.org/stable/c/b3d24038eb775f2f7a1dfef58d8e1dc444a12820 (opens in a new tab)
- https://git.kernel.org/stable/c/4a63523d3541eef4cf504a9682e6fbe94ffe79a6 (opens in a new tab)
- https://git.kernel.org/stable/c/7022df2248c08c6f75a01714163ac902333bf3db (opens in a new tab)
- https://git.kernel.org/stable/c/dbce810607726408f889d3358f4780fd1436861e (opens in a new tab)
- https://git.kernel.org/stable/c/2c5dee15239f3f3e31aa5c8808f18996c039e2c1 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-25559 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-38643)Record last updated .