Out-of-bounds read in Linux kernel - CVE-2026-98188

Vulnerability details

The vulnerability allows a local user to cause out-of-bounds reads past the EEPROM buffer.

The vulnerability exists due to an out-of-bounds read in p54_convert_rev0() and p54_convert_rev1() when processing device-supplied EEPROM calibration curve entries with channel and points-per-channel counts that exceed the available entry data. A local user can supply an EEPROM entry declaring more calibration curve data than it contains to cause out-of-bounds reads past the EEPROM buffer.

Exploitation requires control over the device-supplied EEPROM entry.

Affected software

How to mitigate CVE-2026-98188

External References

• https://git.kernel.org/stable/c/03d313e3dfb49a44c10a5c423452967694fb85e2
• https://git.kernel.org/stable/c/3bdcc4d61212b001b8752d80036509b4974ce16c
• https://git.kernel.org/stable/c/41cdf14bf4b52fbe4673a172c2a6ad756cb08111
• https://git.kernel.org/stable/c/42f4b03971f9d6329c4cbd1ea5155210d16ab65b
• https://git.kernel.org/stable/c/4d767d6f8753db22bfc14c2724bd9cee677ffb03
• https://git.kernel.org/stable/c/81084c967c18233b19799a0c3352ebac043f31e2
• https://git.kernel.org/stable/c/b0c906107150b16925ee66da09127259864c7f36
• https://git.kernel.org/stable/c/ce858fa6b8a214dee5adb82358885fa024cdd887

Related Security Bulletins

• Out-of-bounds read in Linux kernel intersil p54 driver
• Debian update for linux