CVE-2026-53344
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedJul 1, 2026
First seenJul 1, 2026
How to fix
Update
- linux linux_kernel7.0.13 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.19 ≤ v < 7.0.13, 7.1 | 7.0.13 |
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