CVE-2026-98188

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: p54: validate curve data length in the calibration curve converters p54_convert_rev0() and p54_convert_rev1() read calibration curve data from the device-supplied EEPROM entry using channel and points-per-channel counts taken verbatim from that same entry, so an entry that declares more data than it carries drives an out-of-bounds read past the EEPROM buffer (verified with a KASAN reproducer of the conversion loop). The sibling converters p54_convert_output_limits() and p54_convert_db() already validate their counts against the entry length; this path was missed. Reject the entry when the counts do not fit in the entry data.

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EPSS — Exploit Prediction

0.0022

Probability of exploitation

0.11%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other 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

Frequently Asked Questions

What is CVE-2026-98188? +

In the Linux kernel, the following vulnerability has been resolved: wifi: p54: validate curve data length in the calibration curve converters p54_convert_rev0() and p54_convert_rev1() read calibration curve data from the device-supplied EEPROM entry using channel and points-per-channel counts taken verbatim from that same entry, so an entry that declares more data than it carries drives an out-of-bounds read past the EEPROM buffer (verified with a KASAN reproducer of the conversion loop). The sibling converters p54_convert_output_limits() and p54_convert_db() already validate their counts against the entry length; this path was missed. Reject the entry when the counts do not fit in the entry data.

How do I check if I'm vulnerable to CVE-2026-98188? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.