Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-10-06T00:00:00 kernel: wifi: p54: require a full exp_if record in PDR_INTERFACE_LIST 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CWE-125

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.

A flaw was found in the Linux kernel's p54 Wi-Fi driver. The driver fails to verify that an entire interface record fits within the buffer boundaries when parsing EEPROM (Electrically Erasable Programmable Read-Only Memory) data. An attacker capable of attaching a crafted wireless device or supplying malformed data can exploit this condition to trigger an out-of-bounds memory read. This flaw can lead to sensitive information disclosure or cause a system crash, resulting in a Denial of Service (DoS).

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt Red Hat OpenShift Container Platform 4 Not affected openshift/ose-rhel-coreos-8 Red Hat OpenShift Container Platform 4 Not affected openshift/ose-rhel-coreos-9 https://www.cve.org/CVERecord?id=CVE-2026-98187 https://nvd.nist.gov/vuln/detail/CVE-2026-98187 https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98187.mbox