Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — wifi: ath11k: update channel list in reg notifier instead reg worker
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .0028 20.6 —
AFFECTED
Product Versions Fixed
Linux f45cb6b29cd36514e13f7519770873d8c0457008 – —
Linux 6.1 – 6.12.46
TIMELINE
Jan 11 Reserved by Linux
Apr 16 Published (CNA: Linux)
Jul 30 RESCORED — CVE-2025-23133 (Linux). CVSS 8.8 → 7.8 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath11k: update channel list in reg notifier instead reg worker
Currently when ath11k gets a new channel list, it will be processed
according to the following steps:
1. update new channel list to cfg80211 and queue reg_work.
2. cfg80211 handles new channel list during reg_work.
3. update cfg80211's handled channel list to firmware by
ath11k_reg_update_chan_list().
But ath11k will immediately execute step 3 after reg_work is just
queued. Since step 2 is asynchronous, cfg80211 may not have completed
handling the new channel list, which may leading to an out-of-bounds
write error:
BUG: KASAN: slab-out-of-bounds in ath11k_reg_update_chan_list
Call Trace:
ath11k_reg_update_chan_list+0xbfe/0xfe0 [ath11k]
kfree+0x109/0x3a0
ath11k_regd_update+0x1cf/0x350 [ath11k]
ath11k_regd_update_work+0x14/0x20 [ath11k]
process_one_work+0xe35/0x14c0
Should ensure step 2 is completely done before executing step 3. Thus
Wen raised patch[1]. When flag NL80211_REGDOM_SET_BY_DRIVER is set,
cfg80211 will notify ath11k after step 2 is done.
So enable the flag NL80211_REGDOM_SET_BY_DRIVER then cfg80211 will
notify ath11k after step 2 is done. At this time, there will be no
KASAN bug during the execution of the step 3.
[1] https://patchwork.kernel.org/project/linux-wireless/patch/20230201065313.27203-1-quic_wgong@quicinc.com/
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| January 11, 2025 | Reserved | Reserved by Linux |
| April 16, 2025 | Published | Published (CNA: Linux) |
| July 30, 2026 | RESCORED | RESCORED — CVE-2025-23133 (Linux). CVSS 8.8 → 7.8 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | f45cb6b29cd36514e13f7519770873d8c0457008 | — |
| Linux | Linux | — | 6.1 | 6.12.46 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-23133 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.