wifi: ath6kl: fix OOB read from firmware num_msg in TX complete handler
The firmware-controlled num_msg field (u8, 0-255) drives the loop in
ath6kl_wmi_tx_complete_event_rx() without validation against the buffer
length. This allows out-of-bounds reads of up to 1020 bytes past the
WMI event buffer when the firmware sends an inflated num_msg.
Add a check that the buffer is large enough to hold the fixed struct
and the num_msg variable-length entries.
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4745-1 | linux-6.12 security update |
Debian DLA |
DLA-4777-1 | linux security update |
Ubuntu USN |
USN-8876-1 | Linux kernel (Azure CVM) vulnerabilities |
Ubuntu USN |
USN-8875-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8877-1 | Linux kernel (GCP) vulnerabilities |
Ubuntu USN |
USN-8878-1 | Linux kernel (GCP) vulnerabilities |
Ubuntu USN |
USN-8879-1 | Linux kernel (Oracle) vulnerabilities |
Ubuntu USN |
USN-8887-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8888-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-8889-1 | Linux kernel (OEM) vulnerabilities |
Ubuntu USN |
USN-8887-2 | Linux kernel (AWS) vulnerabilities |
Ubuntu USN |
USN-8888-2 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-8875-2 | Linux kernel (NVIDIA) vulnerabilities |
Ubuntu USN |
USN-8887-3 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8917-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8918-1 | Linux kernel (Azure) vulnerabilities |
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Sat, 17 Oct 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 19 Aug 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Thu, 13 Aug 2026 23:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
|
cvssV3_1
|
Wed, 12 Aug 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-125 | |
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Mon, 10 Aug 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: fix OOB read from firmware num_msg in TX complete handler The firmware-controlled num_msg field (u8, 0-255) drives the loop in ath6kl_wmi_tx_complete_event_rx() without validation against the buffer length. This allows out-of-bounds reads of up to 1020 bytes past the WMI event buffer when the firmware sends an inflated num_msg. Add a check that the buffer is large enough to hold the fixed struct and the num_msg variable-length entries. | |
| Title | wifi: ath6kl: fix OOB read from firmware num_msg in TX complete handler | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-10-16T15:53:09.345Z
Reserved: 2026-07-30T09:28:09.385Z
Link: CVE-2026-68353
Updated: 2026-10-16T15:47:26.563Z
Status : Received
Published: 2026-08-10T13:20:27.567
Modified: 2026-10-16T16:19:53.273
Link: CVE-2026-68353
OpenCVE Enrichment
Updated: 2026-08-14T01:30:04Z
Debian DLA
Ubuntu USN