wifi: ath11k: Avoid buffer overread in ath11k_wmi_tlv_op_rx()
Summary
| CVE | CVE-2026-92496 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-17 17:17:51 UTC |
| Updated | 2026-09-17 17:17:51 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: Avoid buffer overread in ath11k_wmi_tlv_op_rx() Currently, in ath11k_wmi_tlv_op_rx(), the firmware buffer is read without first verifying that the buffer has enough data to hold a header. This could result in a buffer overread. Add an upfront length check before dereferencing skb->data as a wmi_cmd_hdr. The check is placed before the trace_ath11k_wmi_event() call to preserve the existing trace semantics (tracing the full raw WMI event including the header), unlike the analogous ath12k fix which could use skb_pull_data() directly. Compile tested only. |
Risk And Classification
EPSS: 0.002100000 probability, percentile 0.116010000 (date 2026-09-18)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 20166fd9a4ad15d7eccc63c9dc99680aea6558ef git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 71690d26c1415e816158b45ee354367244c50d4c git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d f9726f6d97dca94ab14739c8b632301a940a7e8f git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 2677fc48dd10dc08cdec99c2692d50fe5f48dcbf git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 9652e7e23137538169f60323300cae3413475685 git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 72a5e45f606ec454ef556a68ffd92e06b0677f44 git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 9ddbc95dac167e3f2d0e3859e6ce022ae0184fc1 git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 9ef9dd30058cc9223c72f711dca1a28a5947d0c5 git | Not specified |
| CNA | Linux | Linux | affected 5.6 | Not specified |
| CNA | Linux | Linux | unaffected 5.6 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.270 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.221 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.188 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.157 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.110 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.52 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.6 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3-rc1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/71690d26c1415e816158b45ee354367244c50d4c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/9ef9dd30058cc9223c72f711dca1a28a5947d0c5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/2677fc48dd10dc08cdec99c2692d50fe5f48dcbf | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/9ddbc95dac167e3f2d0e3859e6ce022ae0184fc1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/72a5e45f606ec454ef556a68ffd92e06b0677f44 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/9652e7e23137538169f60323300cae3413475685 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/20166fd9a4ad15d7eccc63c9dc99680aea6558ef | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/f9726f6d97dca94ab14739c8b632301a940a7e8f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.