CVE-2026-98187: Linux kernel · wifi: p54: require a full exp_if record in PDR_INTERFACE_LIST
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 01:27 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 6 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
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.
References
- ubuntu.com/security/CVE-2026-98187 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98187 (opens in a new tab)
- git.kernel.org/linus/d8efd84f49379ed28624098821f80e992657d935 (opens in a new tab)
- git.kernel.org/stable/c/162dbe1c285a621eab6a9f2851086b63a0378928 (opens in a new tab)
- git.kernel.org/stable/c/487f966421014de41e835bbce3feb30b35f4f729 (opens in a new tab)
- git.kernel.org/stable/c/70bf34b425fe549a4f6a8d50a319f8f05d1f91c9 (opens in a new tab)
- git.kernel.org/stable/c/bc83c04be042f53869c315b8e1eb5f124959d1d7 (opens in a new tab)
- git.kernel.org/stable/c/d2fb6b588dc5bbab4f603661e41cd60f0d931628 (opens in a new tab)
- git.kernel.org/stable/c/d44c1badc2dcb042985f7e37f4c448c84548b81f (opens in a new tab)
- git.kernel.org/stable/c/d82492fd0a3fb61963c236521852763238ad3898 (opens in a new tab)
- git.kernel.org/stable/c/d8efd84f49379ed28624098821f80e992657d935 (opens in a new tab)