CVE-2026-98187 PUBLISHED

wifi: p54: require a full exp_if record in PDR_INTERFACE_LIST

Assigner: Linux
Reserved: 25.09.2026 Published: 06.10.2026 Updated: 06.10.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from eff1a59c48e3c6a006eb4fe5f2e405a996f2259d to 162dbe1c285a621eab6a9f2851086b63a0378928 (excl.)
  • affected from eff1a59c48e3c6a006eb4fe5f2e405a996f2259d to 70bf34b425fe549a4f6a8d50a319f8f05d1f91c9 (excl.)
  • affected from eff1a59c48e3c6a006eb4fe5f2e405a996f2259d to 487f966421014de41e835bbce3feb30b35f4f729 (excl.)
  • affected from eff1a59c48e3c6a006eb4fe5f2e405a996f2259d to bc83c04be042f53869c315b8e1eb5f124959d1d7 (excl.)
  • affected from eff1a59c48e3c6a006eb4fe5f2e405a996f2259d to d44c1badc2dcb042985f7e37f4c448c84548b81f (excl.)
  • affected from eff1a59c48e3c6a006eb4fe5f2e405a996f2259d to d2fb6b588dc5bbab4f603661e41cd60f0d931628 (excl.)
  • affected from eff1a59c48e3c6a006eb4fe5f2e405a996f2259d to d82492fd0a3fb61963c236521852763238ad3898 (excl.)
  • affected from eff1a59c48e3c6a006eb4fe5f2e405a996f2259d to d8efd84f49379ed28624098821f80e992657d935 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 2.6.24 is affected
  • unaffected from 0 to 2.6.24 (excl.)
  • unaffected from 5.10.271 to 5.10.* (incl.)
  • unaffected from 5.15.222 to 5.15.* (incl.)
  • unaffected from 6.1.189 to 6.1.* (incl.)
  • unaffected from 6.6.158 to 6.6.* (incl.)
  • unaffected from 6.12.112 to 6.12.* (incl.)
  • unaffected from 6.18.54 to 6.18.* (incl.)
  • unaffected from 7.2.8 to 7.2.* (incl.)
  • unaffected from 7.3-rc4 to * (incl.)

References