Bug 2546394 (CVE-2026-98187) - CVE-2026-98187 kernel: wifi: p54: require a full exp_if record in PDR_INTERFACE_LIST
Summary: CVE-2026-98187 kernel: wifi: p54: require a full exp_if record in PDR_INTERFA...
Keywords:
Status: NEW
Alias: CVE-2026-98187
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-06 09:13 UTC by OSIDB Bzimport
Modified: 2026-10-08 16:33 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2026-10-06 09:13:29 UTC
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.


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