CVE-2026-68348 ASoC: tas2781: bound firmware description string parsing
A missing bounds check in the TAS2781 firmware parser allows out-of-bounds reads, potentially leading to information disclosure or system crashes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-68348?
CVE-2026-68348 is a high-severity memory corruption vulnerability in Linux, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
ASoC: tas2781: bound firmware description string parsing
The TAS2781 firmware parser reads several variable-length description strings with strlen() before checking that the string terminator is present inside the firmware blob. A malformed firmware image without a NUL terminator can therefore make the parser walk past the end of the firmware buffer before the later size checks run.
Add a small bounded string-length helper and use it for all description fields that are parsed from the firmware buffer. Keep the existing size checks for the fixed bytes that follow each string.
Weakness: CWE-125
Which versions are affected by CVE-2026-68348?
How do I fix CVE-2026-68348?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-68348 being exploited?
There is no known exploitation of CVE-2026-68348 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-68348, DEBIAN-CVE-2026-68348, GHSA-3wp2-xjg2-vxf4, UBUNTU-CVE-2026-68348.