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

batman-adv: dat: handle forward allocation error

batadv_dat_forward_data() calls pskb_copy_for_clone() to duplicate an skb
for each DHT candidate, but does not check the return value before passing
it to batadv_send_skb_prepare_unicast_4addr(). That function dereferences
the skb unconditionally, so a failed allocation triggers a NULL pointer
dereference.

Skip forwarding to the current DHT candidate on allocation failure.

https://git.kernel.org/stable/c/2d8826a2d3657cea66fb0370f9e521575a673871

https://git.kernel.org/stable/c/2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef

https://git.kernel.org/stable/c/4d420d9ee70a220a2cd95aa0dd2e15acad66a505

https://git.kernel.org/stable/c/866ac1d57040ed0b44ca732e3c66b3aa6b93011c

https://git.kernel.org/stable/c/9bcebaedfb8479cb4affb23c7a0d000ca9a20e73

https://git.kernel.org/stable/c/9cceea8eeba710def2a5707ee00f00c74a9a1cac

https://git.kernel.org/stable/c/ce0c381199402a2c58f4599f4f6ed100d872d0da

https://git.kernel.org/stable/c/cf48e75fc4fe0d5cc7721c82d454221d01367b93

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