Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected a6df410d420aa4ff316797d352f69e7ebae5ff98 before dc6e5d802c88468290fee8826dd3a54cf58da25a; affected a6df410d420aa4ff316797d352f69e7ebae5ff98 before 2490528a90a26f408ec3e95f865bad35454f9ff3; affected a6df410d420aa4ff316797d352f69e7ebae5ff98 before 01b5fcdc30c0ab35af960b60508eae1f7f7d32fd; affected a6df410d420aa4ff316797d352f69e7ebae5ff98 before b8fa1098ee9f627d38bdf7c0ef6c1a6058a4165b; affected a6df410d420aa4ff316797d352f69e7ebae5ff98 before 9c650317ba553d297f3fc5f0ae40ec53d86f9dab |
| Linux / Linux | affected 4.1; unaffected 0 before 4.1; unaffected 6.6.160 through 6.6.*; unaffected 6.12.114 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/dc6e5d802c88468290fee8826dd3a54cf58da25a
- https://git.kernel.org/stable/c/2490528a90a26f408ec3e95f865bad35454f9ff3
- https://git.kernel.org/stable/c/01b5fcdc30c0ab35af960b60508eae1f7f7d32fd
- https://git.kernel.org/stable/c/b8fa1098ee9f627d38bdf7c0ef6c1a6058a4165b
- https://git.kernel.org/stable/c/9c650317ba553d297f3fc5f0ae40ec53d86f9dab