CVE-2026-53344

linux: In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Initialize mcp->dev and mcp->...

CVE-2026-53344 is fixed in linux on 1 platform by DEBIAN-CVE-2026-53344 (version 7.0.13-1), released July 2, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0014
3rd percentile

In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init Regmap initialization triggers regcache_maple_populate() which attempts SPI read to populate cache. SPI read requires mcp->dev and mcp->addr to be set, without them, NULL pointer dereference occurs during probe. Move initialization before mcp23s08_spi_regmap_init() call.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 14 7.0.13-1 DEBIAN-CVE-2026-53344 Jul 2, 2026

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