CVE-2023-52929 Information

Description

In the Linux kernel the following vulnerability has been resolved:

nvmem: core: fix cleanup after dev_set_name()

If dev_set_name() fails we leak nvmem->wp_gpio as the cleanup does not put this. While a minimal fix for this would be to add the gpiod_put() call we can do better if we split device_register() and use the tested nvmem_release() cleanup code by initialising the device early and putting the device.

This results in a slightly larger fix but results in clear code.

Note: this patch depends on vmem: core: initialise nvmem->id early\nand vmem: core: remove nvmem_config wp_gpio.

[Srini: Fixed subject line and error code handing with wp_gpio while applying.]

Reference

https://git.kernel.org/stable/c/23676ecd2eb377f7c24a6ff578b0f4c7135658b6 https://git.kernel.org/stable/c/39708bc8da7858de0bed9b3a88b3beb1d1e0b443 https://git.kernel.org/stable/c/560181d3ace61825f4ca9dd3481d6c0ee6709fa8 https://git.kernel.org/stable/c/8f9c4b2a3b132bf6698e477aba6ee194b40c75f4