Bug 2516734 (CVE-2026-68467) - CVE-2026-68467 kernel: mtd: mchp23k256: use SPI match data for chip caps
Summary: CVE-2026-68467 kernel: mtd: mchp23k256: use SPI match data for chip caps
Keywords:
Status: NEW
Alias: CVE-2026-68467
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: 2026-08-15 06:28 UTC by OSIDB Bzimport
Modified: 2026-08-17 13:57 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-08-15 06:28:19 UTC
In the Linux kernel, the following vulnerability has been resolved:

mtd: mchp23k256: use SPI match data for chip caps

The driver stores chip capacity information in both the OF match table
and the SPI id table. Probe currently uses of_device_get_match_data(),
so a non-OF SPI modalias match falls back to mchp23k256_caps even when
the SPI id table selected a different part.

Use spi_get_device_match_data() so SPI id-table driver_data is consumed
when OF match data is absent. This keeps the existing default fallback
while avoiding the wrong MTD geometry for id-table-only matches.


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