CVE-2026-92496

wifi: ath11k: Avoid buffer overread in ath11k_wmi_tlv_op_rx()

N/A
Published: September 17, 2026 at 04:10 PM UTC
Updated: October 19, 2026 at 09:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 20166fd9a4ad15d7eccc63c9dc99680aea6558ef (fixed)
Vendor states this is fixed in 2677fc48dd10dc08cdec99c2692d50fe5f48dcbf (fixed)
Vendor states this is fixed in 71690d26c1415e816158b45ee354367244c50d4c (fixed)
Vendor states this is fixed in 72a5e45f606ec454ef556a68ffd92e06b0677f44 (fixed)
Vendor states this is fixed in 9652e7e23137538169f60323300cae3413475685 (fixed)
Vendor states this is fixed in 9ddbc95dac167e3f2d0e3859e6ce022ae0184fc1 (fixed)
Vendor states this is fixed in 9ef9dd30058cc9223c72f711dca1a28a5947d0c5 (fixed)
Vendor states this is fixed in f9726f6d97dca94ab14739c8b632301a940a7e8f (fixed)
Vendor states this is fixed in 5.10.270 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 5.6 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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