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

pinctrl: ralink: Check for null return of devm_kcalloc

Because of the possible failure of the allocation, data->domains might
be NULL pointer and will cause the dereference of the NULL pointer
later.
Therefore, it might be better to check it and directly return -ENOMEM
without releasing data manually if fails, because the comment of the
devm_kmalloc() says "Memory allocated with this function is
automatically freed on driver detach.".

https://git.kernel.org/stable/c/13596e6c9e541e90e5fc2c52b23f08b951370da9

https://git.kernel.org/stable/c/44016a85419ca0d4f1e4d0127b330f8e4e2a57d0

https://git.kernel.org/stable/c/5595d30c4dc27d939635c3188c68203b6ece1711

https://git.kernel.org/stable/c/5694b162f275fb9a9f89422701b2b963be11e496

https://git.kernel.org/stable/c/6194c021496addc11763d1ffa89ce5751889fe3c

https://git.kernel.org/stable/c/c3b821e8e406d5650e587b7ac624ac24e9b780a8