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TI-2025-16919 Aliases CVE-2025-23133GHSA-5fx5-c375-9927

wifi: ath11k: update channel list in reg notifier instead reg worker

Priority MEDIUM 40CWE-787Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 3 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

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/[email protected]/ Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00307 23rd percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.16, 6.1, 6.6.160 +3Red Hat: 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.15.79 to before 5.16; 6.0.9 to before 6.15.16, 6.1Patch availableCNA
LinuxLinux6.1 and later6.6.160, 6.12.46, 6.14.2, 6.15Patch availableCNA
  • Linux VendorLinux Affected 5.15.79 to before 5.16; 6.0.9 to before 6.1 Fixed in 5.16, 6.1 Patch available CNA
  • Linux VendorLinux Affected 6.1 and later Fixed in 6.6.160, 6.12.46, 6.14.2, 6.15 Patch available CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*5.15.79 to before 5.16; 6.0.9 to before 6.1; 6.1.1 to before 6.12.46; 6.13 to before 6.14.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.1:-:*:*:*:*:*:*6.1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*6.1 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*6.1 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:*6.1 rc7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.1:rc8:*:*:*:*:*:*6.1 rc8VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15.79 to before 5.16; 6.0.9 to before 6.1; 6.1.1 to before 6.12.46; 6.13 to before 6.14.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.1:-:*:*:*:*:*:* Versions 6.1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:* Versions 6.1 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:* Versions 6.1 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:* Versions 6.1 rc7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.1:rc8:*:*:*:*:*:* Versions 6.1 rc8 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.16, 6.1
  • Fix · CNA Linux (Linux) Fixed in 6.6.160, 6.12.46, 6.14.2, 6.15

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Not affected: 2 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-23133
  2. 2026-10-03 Alias added: GHSA-5fx5-c375-9927
  3. 2026-10-16 CISA SSVC decision points changed
  4. 2026-10-16 Priority changed: LOW → MEDIUM
  5. 2026-10-21 Fix available: Linux/[email protected], Linux/Linux@ec97bd5378c594be1f1c7a15dcf381e075b665d9 · CNA
  6. 2026-10-21 1 new reference · CNA

References

Patch 3

Other 1

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences