wifi: iwlwifi: mvm: check n_ssids before accessing the ssids
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · High
- Fix status
- Partial Red Hat: 11 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: check n_ssids before accessing the ssids In some versions of cfg80211, the ssids poinet might be a valid one even though n_ssids is 0. Accessing the pointer in this case will cuase an out-of-bound access. Fix this by checking n_ssids first.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 | 4.17 and later | 5.10.221, 5.15.162, 6.1.95, 6.6.35, 6.9.6, 6.10 | Patch available | CNA |
- Linux VendorLinux Affected 4.17 and later Fixed in 5.10.221, 5.15.162, 6.1.95, 6.6.35, 6.9.6, 6.10 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.17 to before 5.10.221; 5.11 to before 5.15.162; 5.16 to before 6.1.95; 6.2 to before 6.6.35; 6.7 to before 6.9.6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:* | 6.10 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:* | 6.10 rc2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.17 to before 5.10.221; 5.11 to before 5.15.162; 5.16 to before 6.1.95; 6.2 to before 6.6.35; 6.7 to before 6.9.6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:* Versions 6.10 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:* Versions 6.10 rc2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.221, 5.15.162, 6.1.95, 6.6.35, 6.9.6, 6.10
Red Hat 3 advisories
- RHSA-2024:7000 Released 2024-09-24 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.22.1.el8_10, kernel-4.18.0-553.22.1.el8_10, kernel-abi-stablelists-4.18.0-553.22.1.el8_10 +19
- Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.22.1.el8_10
- RHSA-2024:7001 Released 2024-09-24 · Red Hat rating Importantkernel-rt security update
- Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.22.1.rt7.363.el8_10, kernel-rt-core-4.18.0-553.22.1.rt7.363.el8_10, kernel-rt-debug-4.18.0-553.22.1.rt7.363.el8_10 +9
- Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.22.1.rt7.363.el8_10, kernel-rt-core-4.18.0-553.22.1.rt7.363.el8_10, kernel-rt-debug-4.18.0-553.22.1.rt7.363.el8_10 +7
- RHSA-2024:5928 Released 2024-08-28 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.33.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.33.1.el9_4, kernel-64k-devel-5.14.0-427.33.1.el9_4 +11
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.33.1.el9_4, kernel-5.14.0-427.33.1.el9_4, kernel-64k-5.14.0-427.33.1.el9_4 +29
- Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.33.1.el9_4, libperf-5.14.0-427.33.1.el9_4
- Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.33.1.el9_4, kernel-rt-core-5.14.0-427.33.1.el9_4, kernel-rt-debug-5.14.0-427.33.1.el9_4 +11
- Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.33.1.el9_4, kernel-rt-core-5.14.0-427.33.1.el9_4, kernel-rt-debug-5.14.0-427.33.1.el9_4 +9
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| RHOAI-2.13-RHEL-8 | Fixed | — |
| RHOAI-2.14-RHEL-8 | Fixed | — |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2024:7000 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2024:7000 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux NFV (v. 8) | Fixed | RHSA-2024:7001 |
| Red Hat Enterprise Linux NFV (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux RT (v. 8) | Fixed | RHSA-2024:7001 |
| Red Hat Enterprise Linux RT (v. 9) | Fixed | RHSA-2024:5928 |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2024-40929
- 2026-10-03 Alias added: GHSA-qf7p-vpj6-jv2c
- 2026-10-29 Affected versions changed · Red Hat
- 2026-10-31 Fix available: RHOAI-2.13-RHEL-8, RHOAI-2.14-RHEL-8 · Red Hat
References
Patch 6
- https://git.kernel.org/stable/c/3c4771091ea8016c8601399078916f722dd8833b
- https://git.kernel.org/stable/c/f777792952d03bbaf8329fdfa99393a5a33e2640
- https://git.kernel.org/stable/c/9e719ae3abad60e245ce248ba3f08148f375a614
- https://git.kernel.org/stable/c/29a18d56bd64b95bd10bda4afda512558471382a
- https://git.kernel.org/stable/c/62e007bdeb91c6879a4652c3426aef1cd9d2937b
- https://git.kernel.org/stable/c/60d62757df30b74bf397a2847a6db7385c6ee281
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- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2024-40929 · CVE Program
- CVE-2024-40929 · NVD
- FIRST EPSS
- GHSA-qf7p-vpj6-jv2c · GitHub Advisory Database · CC BY 4.0
- CVE-2024-40929 · 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