Vulnerability CVE-2024-36940
Published: 2024-05-30

Description:
In the Linux kernel, the following vulnerability has been resolved:

pinctrl: core: delete incorrect free in pinctrl_enable()

The "pctldev" struct is allocated in devm_pinctrl_register_and_init().
It's a devm_ managed pointer that is freed by devm_pinctrl_dev_release(),
so freeing it in pinctrl_enable() will lead to a double free.

The devm_pinctrl_dev_release() function frees the pindescs and destroys
the mutex as well.

 References:
https://git.kernel.org/stable/c/735f4c6b6771eafe336404c157ca683ad72a040d
https://git.kernel.org/stable/c/cdaa171473d98962ae86f2a663d398fda2fbeefd
https://git.kernel.org/stable/c/288bc4aa75f150d6f1ee82dd43c6da1b438b6068
https://git.kernel.org/stable/c/41f88ef8ba387a12f4a2b8c400b6c9e8e54b2cca
https://git.kernel.org/stable/c/ac7d65795827dc0cf7662384ed27caf4066bd72e
https://git.kernel.org/stable/c/558c8039fdf596a584a92c171cbf3298919c448c
https://git.kernel.org/stable/c/f9f1e321d53e4c5b666b66e5b43da29841fb55ba
https://git.kernel.org/stable/c/5038a66dad0199de60e5671603ea6623eb9e5c79
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