CVE-2026-92496
Published: September 19, 2026Last modified: October 6, 2026
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.
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.189-r0) |
| 25 LTS | linux-lts | Fixed (6.12.111-r0) | |
| Stream | linux-lts | Fixed (6.18.53-r0) |
References
- https://git.kernel.org/stable/c/20166fd9a4ad15d7eccc63c9dc99680aea6558ef
- https://git.kernel.org/stable/c/2677fc48dd10dc08cdec99c2692d50fe5f48dcbf
- https://git.kernel.org/stable/c/71690d26c1415e816158b45ee354367244c50d4c
- https://git.kernel.org/stable/c/72a5e45f606ec454ef556a68ffd92e06b0677f44
- https://git.kernel.org/stable/c/9652e7e23137538169f60323300cae3413475685
- https://git.kernel.org/stable/c/9ddbc95dac167e3f2d0e3859e6ce022ae0184fc1
- https://git.kernel.org/stable/c/9ef9dd30058cc9223c72f711dca1a28a5947d0c5
- https://git.kernel.org/stable/c/f9726f6d97dca94ab14739c8b632301a940a7e8f