What’s Vulnerable › Vulnerabilities

CVE-2026-98187: wifi: p54: require a full exp_if record in PDR_INTERFACE_LIST

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-06 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: p54: require a full exp_if record in PDR_INTERFACE_LIST The PDR_INTERFACE_LIST loop only checks that the record start is within the entry before reading an entire struct exp_if from it. A truncated trailing record makes the if_id/variant reads cross the entry boundary into the heap beyond the EEPROM buffer (verified with a KASAN reproducer of the loop). The variant also feeds the synth front-end selection, so this is not only a leak. Advance only while a full record still fits in the entry.

Affected products

• Linux kernel: 2.6.24 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/162dbe1c285a621eab6a9f2851086b63a0378928
• https://git.kernel.org/stable/c/487f966421014de41e835bbce3feb30b35f4f729
• https://git.kernel.org/stable/c/70bf34b425fe549a4f6a8d50a319f8f05d1f91c9
• https://git.kernel.org/stable/c/bc83c04be042f53869c315b8e1eb5f124959d1d7
• https://git.kernel.org/stable/c/d2fb6b588dc5bbab4f603661e41cd60f0d931628
• https://git.kernel.org/stable/c/d44c1badc2dcb042985f7e37f4c448c84548b81f
• https://git.kernel.org/stable/c/d82492fd0a3fb61963c236521852763238ad3898
• https://git.kernel.org/stable/c/d8efd84f49379ed28624098821f80e992657d935

Get alerted when CVE-2026-98187 or the next vulnerability affects your stack