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

Bluetooth: 6lowpan: check skb_clone() return value in send_mcast_pkt()

The skb_clone() function can return NULL if memory allocation fails.
send_mcast_pkt() calls skb_clone() without checking the return value, which
can lead to a NULL pointer dereference in send_pkt() when it dereferences
skb->data.
Add a NULL check after skb_clone() and skip the peer if the clone fails.

https://git.kernel.org/stable/c/2061d080a013c0ec0a56162cd501fb36d2befc26

https://git.kernel.org/stable/c/3c40d381ce04f9575a5d8b542898183c3b4b38dc

https://git.kernel.org/stable/c/3d5d81d294ba09487c86bc4ba33dc4a4bec5d215

https://git.kernel.org/stable/c/9903a04becf059e44cccf625e23689b7d4378384

https://git.kernel.org/stable/c/9afcb5ea080af13aab37930da627db43bd277665

https://git.kernel.org/stable/c/b06203ac5f12929d79146bb9f063c2af1d679e63

https://git.kernel.org/stable/c/d630c4b25f36e0e68461561e4c70957ec37fdedd

https://git.kernel.org/stable/c/e673889a35a5e4c586d0fae67d8755ca4367d3e2

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