CVE-2026-68353

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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0e0fc04af9b443c6b425f00fb604ff599bc80d1d
https://git.kernel.org/stable/c/289edc3c71344b89e6522891147cfb8f61b088bb
https://git.kernel.org/stable/c/35196a07603f8c94a4943093bc26d5b5826285f8
https://git.kernel.org/stable/c/3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495
https://git.kernel.org/stable/c/5297299c3fa6133275db0be99d69cd759b6cbfe9
https://git.kernel.org/stable/c/69ac7ba3a3df6654e7daa82674575a8c4a1a63ea
https://git.kernel.org/stable/c/c38b0d5c661951b5dd082bdf31f8a57a0ce6e540
https://git.kernel.org/stable/c/eb636fbc443149b3501c3f97e26225ddcb314a0f

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-10 13:20

Updated : 2026-08-19 17:20

NVD link : CVE-2026-68353

Mitre link : CVE-2026-68353

CVE.ORG link : CVE-2026-68353

JSON object : View

Products Affected

No product.

CWE

No CWE.

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This allows out-of-bounds reads of up to 1020 bytes past the\nWMI event buffer when the firmware sends an inflated num_msg.\n\nAdd a check that the buffer is large enough to hold the fixed struct\nand the num_msg variable-length entries."}], "lastModified": "2026-08-19T17:20:44.873", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}