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

cpufreq: exit() callback is optional

The exit() callback is optional and shouldn't be called without checking
a valid pointer first.

Also, we must clear freq_table pointer even if the exit() callback isn't
present.

References

• https://nvd.nist.gov/vuln/detail/CVE-2024-38615
• https://git.kernel.org/stable/c/2d730b465e377396d2a09a53524b96b111f7ccb6
• https://git.kernel.org/stable/c/35db5e76d5e9f752476df5fa0b9018a2398b0378
• https://git.kernel.org/stable/c/3e99f060cfd2e36504d62c9132b453ade5027e1c
• https://git.kernel.org/stable/c/8bc9546805e572ad101681437a49939f28777273
• https://git.kernel.org/stable/c/a8204d1b6ff762d2171d365c2c8560285d0a233d
• https://git.kernel.org/stable/c/ae37ebca325097d773d7bb6ec069123b30772872
• https://git.kernel.org/stable/c/b8f85833c05730d631576008daaa34096bc7f3ce
• https://git.kernel.org/stable/c/dfc56ff5ec9904c008e9376d90a6d7e2d2bec4d3