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.
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.
Metrics
Affected Vendors & Products
No data.
No data.
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| Vendors | Products |
|---|---|
|
Linux
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|
Linux Kernel
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Advisories
| Source | ID | Title |
|---|---|---|
 Debian DLA |
DLA-4817-1 | linux-6.12 security update |
| Debian DLA |
DLA-4841-1 | linux security update |
 Debian DSA |
DSA-6528-1 | linux security update |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Sat, 19 Sep 2026 06:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-20 |
Thu, 17 Sep 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | wifi: ath11k: Avoid buffer overread in ath11k_wmi_tlv_op_rx() | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
|
Projects
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MITRE
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-10-19T09:04:02.474Z
Reserved: 2026-09-16T12:21:13.871Z
Link: CVE-2026-92496
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-09-17T17:17:51.800
Modified: 2026-10-19T09:19:39.853
Link: CVE-2026-92496
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-09-19T10:15:16Z
Weaknesses