CVE-2026-68353
wifi: ath6kl: fix OOB read from firmware num_msg in TX complete handler
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.
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 17, 2026, 6:17 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Check if buffer is large enough for struct and variable entries.
- Validate num_msg against buffer length.
- Apply the Linux kernel patch for ath6kl.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-68353.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68353 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-68353
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-68353 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68353 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': '69ac7ba3a3df6654e7daa82674575a8c4a1a63ea', 'versionType': 'git'}, {'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': '289edc3c71344b89e6522891147cfb8f61b088bb', 'versionType': 'git'}, {'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': 'eb636fbc443149b3501c3f97e26225ddcb314a0f', 'versionType': 'git'}, {'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': 'c38b0d5c661951b5dd082bdf31f8a57a0ce6e540', 'versionType': 'git'}, {'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': '3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/ath/ath6kl/wmi.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.2'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.2', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/ath/ath6kl/wmi.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': '69ac7ba3a3df6654e7daa82674575a8c4a1a63ea', 'versionType': 'git'}, {'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': '289edc3c71344b89e6522891147cfb8f61b088bb', 'versionType': 'git'}, {'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': 'eb636fbc443149b3501c3f97e26225ddcb314a0f', 'versionType': 'git'}, {'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': 'c38b0d5c661951b5dd082bdf31f8a57a0ce6e540', 'versionType': 'git'}, {'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': '3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/ath/ath6kl/wmi.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.2'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.2', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/ath/ath6kl/wmi.c'], 'defaultStatus': 'affected'}] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 13, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 10, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': '69ac7ba3a3df6654e7daa82674575a8c4a1a63ea', 'versionType': 'git'}, {'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': '289edc3c71344b89e6522891147cfb8f61b088bb', 'versionType': 'git'}, {'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': 'eb636fbc443149b3501c3f97e26225ddcb314a0f', 'versionType': 'git'}, {'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': 'c38b0d5c661951b5dd082bdf31f8a57a0ce6e540', 'versionType': 'git'}, {'status': 'affected', 'version': 'bdcd81707973cf8aa9305337166f8ee842a050d4', 'lessThan': '3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/ath/ath6kl/wmi.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.2'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.2', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/ath/ath6kl/wmi.c'], 'defaultStatus': 'affected'}] 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. Added Reference https://git.kernel.org/stable/c/289edc3c71344b89e6522891147cfb8f61b088bb Added Reference https://git.kernel.org/stable/c/3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495 Added Reference https://git.kernel.org/stable/c/69ac7ba3a3df6654e7daa82674575a8c4a1a63ea Added Reference https://git.kernel.org/stable/c/c38b0d5c661951b5dd082bdf31f8a57a0ce6e540 Added Reference https://git.kernel.org/stable/c/eb636fbc443149b3501c3f97e26225ddcb314a0f