CVE-2026-68351
wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read When the firmware sends a command response with a length mismatch, carl9170_cmd_callback() logs the mismatch and calls carl9170_restart() but then falls through to memcpy(ar->readbuf, buffer + 4, len - 4). Since len comes from the firmware and can exceed ar->readlen, this copies more data than the readbuf was allocated for. Bound the memcpy to min(len - 4, ar->readlen) so that the response is still completed -- avoiding repeated restarts from queued garbage -- while preventing an overread past the response buffer.
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
Solution
- Update Linux kernel to the latest version.
- Apply vendor-specific patches for carl9170 driver.
- Ensure firmware command responses have correct length.
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-2026-68351.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68351 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-2026-68351
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-2026-68351 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68351 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.
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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': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': 'f74e34e66379e487a09009a4f2d42470051672bd', 'versionType': 'git'}, {'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': '500c36649f270de05a56591fcc1aaaa36687958e', 'versionType': 'git'}, {'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': '9aee949c68dc6dccbc54333537b109c53fe2079f', 'versionType': 'git'}, {'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': 'cb7a38810cf25738176dac32dec7a146b3f959cf', 'versionType': 'git'}, {'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': '4cde55b2feff9504d1f993ab80e84e7ccb62791c', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/ath/carl9170/rx.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.37'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.37', '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/carl9170/rx.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': 'f74e34e66379e487a09009a4f2d42470051672bd', 'versionType': 'git'}, {'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': '500c36649f270de05a56591fcc1aaaa36687958e', 'versionType': 'git'}, {'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': '9aee949c68dc6dccbc54333537b109c53fe2079f', 'versionType': 'git'}, {'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': 'cb7a38810cf25738176dac32dec7a146b3f959cf', 'versionType': 'git'}, {'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': '4cde55b2feff9504d1f993ab80e84e7ccb62791c', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/ath/carl9170/rx.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.37'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.37', '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/carl9170/rx.c'], 'defaultStatus': 'affected'}] -
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': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': 'f74e34e66379e487a09009a4f2d42470051672bd', 'versionType': 'git'}, {'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': '500c36649f270de05a56591fcc1aaaa36687958e', 'versionType': 'git'}, {'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': '9aee949c68dc6dccbc54333537b109c53fe2079f', 'versionType': 'git'}, {'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': 'cb7a38810cf25738176dac32dec7a146b3f959cf', 'versionType': 'git'}, {'status': 'affected', 'version': 'a84fab3cbfdc427e7d366f1cc844f27b2084c26c', 'lessThan': '4cde55b2feff9504d1f993ab80e84e7ccb62791c', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/ath/carl9170/rx.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.37'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.37', '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/carl9170/rx.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read When the firmware sends a command response with a length mismatch, carl9170_cmd_callback() logs the mismatch and calls carl9170_restart() but then falls through to memcpy(ar->readbuf, buffer + 4, len - 4). Since len comes from the firmware and can exceed ar->readlen, this copies more data than the readbuf was allocated for. Bound the memcpy to min(len - 4, ar->readlen) so that the response is still completed -- avoiding repeated restarts from queued garbage -- while preventing an overread past the response buffer. Added Reference https://git.kernel.org/stable/c/4cde55b2feff9504d1f993ab80e84e7ccb62791c Added Reference https://git.kernel.org/stable/c/500c36649f270de05a56591fcc1aaaa36687958e Added Reference https://git.kernel.org/stable/c/9aee949c68dc6dccbc54333537b109c53fe2079f Added Reference https://git.kernel.org/stable/c/cb7a38810cf25738176dac32dec7a146b3f959cf Added Reference https://git.kernel.org/stable/c/f74e34e66379e487a09009a4f2d42470051672bd