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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
bdcd81707973cf8aa9305337166f8ee842a050d4 affected < 69ac7ba3a3df6654e7daa82674575a8c4a1a63ea
bdcd81707973cf8aa9305337166f8ee842a050d4 affected < 289edc3c71344b89e6522891147cfb8f61b088bb
bdcd81707973cf8aa9305337166f8ee842a050d4 affected < eb636fbc443149b3501c3f97e26225ddcb314a0f
bdcd81707973cf8aa9305337166f8ee842a050d4 affected < c38b0d5c661951b5dd082bdf31f8a57a0ce6e540
bdcd81707973cf8aa9305337166f8ee842a050d4 affected < 3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495
Linux Linux affected
Version Status Constraints
3.2 affected —
0 unaffected < 3.2
6.6.148 unaffected ≤ 6.6.*
6.12.101 unaffected ≤ 6.12.*
6.18.42 unaffected ≤ 6.18.*
7.1.6 unaffected ≤ 7.1.*
7.2-rc5 unaffected ≤ *

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/289edc3c71344b89e6522891147cfb8f61b088bb cve-icon
https://git.kernel.org/stable/c/3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495 cve-icon
https://git.kernel.org/stable/c/69ac7ba3a3df6654e7daa82674575a8c4a1a63ea cve-icon
https://git.kernel.org/stable/c/c38b0d5c661951b5dd082bdf31f8a57a0ce6e540 cve-icon
https://git.kernel.org/stable/c/eb636fbc443149b3501c3f97e26225ddcb314a0f cve-icon
History

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

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-10T12:03:30.330Z

Reserved: 2026-07-30T09:28:09.385Z

Link: CVE-2026-68353

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

Updated: 2026-08-10T15:45:03Z

Weaknesses

No weakness.