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CVE-2026-98187

Linux: wifi: p54: require a full exp_if record in PDR_INTERFACE_LIST

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.18%Chance of exploitation activity in the next 30 days, higher than 7% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in162dbe1c285a621eab6a9f2851086b63a0378928Also 70bf34b425fe549a4f6a8d50a319f8f05d1f91c9, 487f966421014de41e835bbce3feb30b35f4f729CVE List
Published6 Oct 2026Updated 19 Oct 2026CVE List

What fixes it

  • 162dbe1c285a621eab6a9f2851086b63a0378928LinuxCVE List
  • 70bf34b425fe549a4f6a8d50a319f8f05d1f91c9LinuxCVE List
  • 487f966421014de41e835bbce3feb30b35f4f729LinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 18

  • Linuxaffected: eff1a59c48e3c6a006eb4fe5f2e405a996f2259d before 162dbe1c285a621eab6a9f2851086b63a0378928CVE List
  • Linuxaffected: eff1a59c48e3c6a006eb4fe5f2e405a996f2259d before 70bf34b425fe549a4f6a8d50a319f8f05d1f91c9CVE List
  • Linuxaffected: eff1a59c48e3c6a006eb4fe5f2e405a996f2259d before 487f966421014de41e835bbce3feb30b35f4f729CVE List
  • Linuxaffected: eff1a59c48e3c6a006eb4fe5f2e405a996f2259d before bc83c04be042f53869c315b8e1eb5f124959d1d7CVE List
  • Linuxaffected: eff1a59c48e3c6a006eb4fe5f2e405a996f2259d before d44c1badc2dcb042985f7e37f4c448c84548b81fCVE List
  • Linuxaffected: eff1a59c48e3c6a006eb4fe5f2e405a996f2259d before d2fb6b588dc5bbab4f603661e41cd60f0d931628CVE List
  • Linuxaffected: eff1a59c48e3c6a006eb4fe5f2e405a996f2259d before d82492fd0a3fb61963c236521852763238ad3898CVE List
  • Linuxaffected: eff1a59c48e3c6a006eb4fe5f2e405a996f2259d before d8efd84f49379ed28624098821f80e992657d935CVE List
  • Linuxaffected: 2.6.24CVE List
  • Linuxunaffected: all versions before 2.6.24CVE List
  • Linuxunaffected: 5.10.271 through 5.10.*CVE List
  • Linuxunaffected: 5.15.222 through 5.15.*CVE List
  • Linuxunaffected: 6.1.189 through 6.1.*CVE List
  • Linuxunaffected: 6.6.158 through 6.6.*CVE List
  • Linuxunaffected: 6.12.112 through 6.12.*CVE List
  • Linuxunaffected: 6.18.54 through 6.18.*CVE List
  • Linuxunaffected: 7.2.8 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 8