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

ALSA: gus: check snd_ctl_new1() return value

snd_ctl_new1() can return NULL when memory allocation fails.
snd_gf1_pcm_volume_control() does not check the return value before
dereferencing kctl->id.index, which can lead to a NULL pointer
dereference.

Add a NULL check after snd_ctl_new1() and return -ENOMEM if it fails.

https://git.kernel.org/stable/c/465075c6835103821d725c13f8c545898e5f2636

https://git.kernel.org/stable/c/5e74e5e8cb7cc25f7a89f59abaf3489bf0c6f4a0

https://git.kernel.org/stable/c/97f6bdf5d5ded2e37f358cacb5a95f1393356604

https://git.kernel.org/stable/c/c7fa99d30c7a166a5e5db5a585ce7501ff68326b

https://git.kernel.org/stable/c/eccf8e91266e39f6f15637702a04a1d344833fe2

https://git.kernel.org/stable/c/fc5d4f27ca1293bc1379ef8fff691c30d9803ca2

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