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CVE-2026-68351

Unknown

Last modified

CVE-2026-68351 is a vulnerability of currently unknown severity. 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..

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= a84fab3cbfdc427e7d366f1cc844f27b2084c26c, < f74e34e66379e487a09009a4f2d42470051672bd; >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c, < 500c36649f270de05a56591fcc1aaaa36687958e; >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c, < 9aee949c68dc6dccbc54333537b109c53fe2079f; >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c, < cb7a38810cf25738176dac32dec7a146b3f959cf; >= a84fab3cbfdc427e7d366f1cc844f27b2084c26c, < 4cde55b2feff9504d1f993ab80e84e7ccb62791c
LinuxLinux2.6.37

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-68351?
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.
How severe is CVE-2026-68351?
Severity scoring for CVE-2026-68351 is pending analysis.
How do I fix CVE-2026-68351?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST