CVE-2026-53344
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f9f4fda15e720686f1b2b436591ab11255e4e85e < 3a13bb9540dfd7014c5601608afcbbadbbcfd673 | affected |
| Linux | Linux | f9f4fda15e720686f1b2b436591ab11255e4e85e < 8473c3a197b57ff01396f7a2ec6ddf65383820d4 | affected |
| Linux | Linux | 6.19 | affected |
| Linux | Linux | 0 < 6.19 | unaffected |
| Linux | Linux | 7.0.13 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/3a13bb9540dfd7014c5601608afcbbadbbcfd673
- https://git.kernel.org/stable/c/8473c3a197b57ff01396f7a2ec6ddf65383820d4
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