CVE-2026-53344 | In the Linux kernel, the following vulnerability has been re…

Description

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.

Metadata

CVE ID: CVE-2026-53344
State: PUBLISHED
Assigner: Linux
Reserved: 2026-06-09 07:44 UTC
Published: 2026-07-01 13:32 UTC
Last updated: 2026-07-01 13:32 UTC
Vendor / Product: Linux / Linux
Sources: cve.org · NVD

Severity & Metrics

No CVSS data available.

Affected products (2)

Vendor	Product	Platform	Versions
Linux	Linux	—	f9f4fda15e720686f1b2b436591ab11255e4e85e < 3a13bb9540dfd7014c5601608afcbbadbbcfd673, f9f4fda15e720686f1b2b436591ab11255e4e85e < 8473c3a197b57ff01396f7a2ec6ddf65383820d4
Linux	Linux	—	6.19, 0 < 6.19, 7.0.13 ≤ 7.0., 7.1 ≤

References (2)