CVE-2026-92482
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
pinctrl: mediatek: use devm_gpiochip_add_data() for GPIO chip
The gpio_chip is allocated with device-managed memory but registered with the non-managed gpiochip_add_data(). This was harmless while the drivers were built-in, but once they can be built as modules and unbound/rmmod'd, devm frees the gpio_chip's memory while it is still registered, causing a use-after-free.
Register it with devm_gpiochip_add_data() so it shares the same device-managed lifecycle, which also lets the manual gpiochip_remove() error paths go away.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | a6df410d420aa4ff316797d352f69e7ebae5ff98 < b8fa1098ee9f627d38bdf7c0ef6c1a6058a4165b | affected |
| Linux | Linux | a6df410d420aa4ff316797d352f69e7ebae5ff98 < 9c650317ba553d297f3fc5f0ae40ec53d86f9dab | affected |
| Linux | Linux | 4.1 | affected |
| Linux | Linux | 0 < 4.1 | unaffected |
| Linux | Linux | 7.2.6 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/b8fa1098ee9f627d38bdf7c0ef6c1a6058a4165b
- https://git.kernel.org/stable/c/9c650317ba553d297f3fc5f0ae40ec53d86f9dab
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