wifi: cfg80211: cancel wiphy_work before freeing wiphy
Priority LOW 35CWE-416Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 10 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: cancel wiphy_work before freeing wiphy A wiphy_work can be queued from the moment the wiphy is allocated and initialized (i.e. wiphy_new_nm). When a wiphy_work is queued, the rdev::wiphy_work is getting queued. If wiphy_free is called before the rdev::wiphy_work had a chance to run, the wiphy memory will be freed, and then when it eventally gets to run it'll use invalid memory. Fix this by canceling the work before freeing the wiphy.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00213 11th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.132, 6.6.84, 6.12.20 +2Red Hat: 2 advisoriesRed Hat: 10 fixed, 2 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 6.1.57 to before 6.1.132 | 6.1.132 | Patch available | CNA |
| Linux | Linux | 6.5 and later | 6.1.132, 6.6.84, 6.12.20, 6.13.8, 6.14 | Patch available | CNA |
- Linux VendorLinux Affected 6.1.57 to before 6.1.132 Fixed in 6.1.132 Patch available CNA
- Linux VendorLinux Affected 6.5 and later Fixed in 6.1.132, 6.6.84, 6.12.20, 6.13.8, 6.14 Patch available CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.1.57 to before 6.1.132; 6.5 to before 6.6.84; 6.7 to before 6.12.20; 6.13 to before 6.13.8 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* | 6.14 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:* | 6.14 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:* | 6.14 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:* | 6.14 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:* | 6.14 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:* | 6.14 rc6 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.1.57 to before 6.1.132; 6.5 to before 6.6.84; 6.7 to before 6.12.20; 6.13 to before 6.13.8 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* Versions 6.14 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:* Versions 6.14 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:* Versions 6.14 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:* Versions 6.14 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:* Versions 6.14 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:* Versions 6.14 rc6 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.132
- Fix · CNA Linux (Linux) Fixed in 6.1.132, 6.6.84, 6.12.20, 6.13.8, 6.14
Red Hat 2 advisories
- RHSA-2025:9080 Released 2025-06-16 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.22.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.22.1.el9_6, kernel-64k-devel-5.14.0-570.22.1.el9_6 +12
- Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-570.22.1.el9_6, kernel-64k-5.14.0-570.22.1.el9_6, kernel-64k-core-5.14.0-570.22.1.el9_6 +28
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.22.1.el9_6, libperf-5.14.0-570.22.1.el9_6
- Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-570.22.1.el9_6, kernel-rt-64k-5.14.0-570.22.1.el9_6, kernel-rt-64k-core-5.14.0-570.22.1.el9_6 +21
- Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.22.1.el9_6, kernel-rt-core-5.14.0-570.22.1.el9_6, kernel-rt-debug-5.14.0-570.22.1.el9_6 +11
- RHSA-2025:9079 Released 2025-06-16 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-55.17.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.17.1.el10_0, kernel-64k-devel-6.12.0-55.17.1.el10_0 +12
- Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-55.17.1.el10_0, kernel-64k-6.12.0-55.17.1.el10_0, kernel-64k-core-6.12.0-55.17.1.el10_0 +28
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-55.17.1.el10_0, libperf-6.12.0-55.17.1.el10_0
- Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-55.17.1.el10_0, kernel-rt-64k-6.12.0-55.17.1.el10_0, kernel-rt-64k-core-6.12.0-55.17.1.el10_0 +21
- Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-55.17.1.el10_0, kernel-rt-core-6.12.0-55.17.1.el10_0, kernel-rt-debug-6.12.0-55.17.1.el10_0 +11
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2025:9079 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:9080 |
| Red Hat Enterprise Linux BaseOS (v. 10) | Fixed | RHSA-2025:9079 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2025:9080 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2025:9079 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2025:9080 |
| Red Hat Enterprise Linux Real Time (v. 10) | Fixed | RHSA-2025:9079 |
| Red Hat Enterprise Linux Real Time (v. 9) | Fixed | RHSA-2025:9080 |
| Red Hat Enterprise Linux Real Time for NFV (v. 10) | Fixed | RHSA-2025:9079 |
| Red Hat Enterprise Linux Real Time for NFV (v. 9) | Fixed | RHSA-2025:9080 |
Not affected: 1 product
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2025-21979
- 2026-10-03 Alias added: GHSA-4hrq-jxxx-hj3h
- 2026-10-29 Affected versions changed · Red Hat
References
Patch 7
- https://git.kernel.org/stable/c/8930a3e1568cf534f86c8ed2def817c6d0528fc1
- https://git.kernel.org/stable/c/0272d4af7f92997541d8bbf4c51918b93ded6ee2
- https://git.kernel.org/stable/c/75d262ad3c36d52852d764588fcd887f0fcd9138
- https://git.kernel.org/stable/c/a5158d67bff06cb6fea31be39aeb319fd908ed8e
- https://git.kernel.org/stable/c/dea22de162058216a90f2706f0d0b36f0ff309fd
- https://git.kernel.org/stable/c/72d520476a2fab6f3489e8388ab524985d6c4b90
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
More Linux Kernel vulnerabilities
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- 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
Sources
- CVE-2025-21979 · CVE Program
- CVE-2025-21979 · NVD
- FIRST EPSS
- GHSA-4hrq-jxxx-hj3h · GitHub Advisory Database · CC BY 4.0
- CVE-2025-21979 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences