CVE-2026-68348

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux915f5eadebd29ba185ac506766a90120153b7e14 < 3ddb0d3e36507615e5ef010a879357a54870adf5affected
LinuxLinux915f5eadebd29ba185ac506766a90120153b7e14 < 0ec45e80a82785ee147516fdecf5c93707dec119affected
LinuxLinux915f5eadebd29ba185ac506766a90120153b7e14 < 41ae2b7d37c3dd82302167496836cca9f0328374affected
LinuxLinux915f5eadebd29ba185ac506766a90120153b7e14 < e75ef37d83c90b09bedb601624b47e168202b226affected
LinuxLinux915f5eadebd29ba185ac506766a90120153b7e14 < bc889dfcea9294a1eae7f8e2f3573a90764ae4d0affected
LinuxLinux6.5affected
LinuxLinux0 < 6.5unaffected
LinuxLinux6.6.148 <= 6.6.*unaffected
LinuxLinux6.12.101 <= 6.12.*unaffected
LinuxLinux6.18.42 <= 6.18.*unaffected
LinuxLinux7.1.6 <= 7.1.*unaffected
LinuxLinux7.2-rc5 <= *unaffected

Weaknesses

References