In the Linux kernel, the following vulnerability has been resolved: net: core: reject skb_copy(_expand) for fraglist GSO skbs SKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become invalid. Return NULL if such an skb is passed to skb_copy or skb_copy_expand, in order to prevent a crash on a potential later call to skb_gso_segment.
https://git.kernel.org/stable/c/faa83a7797f06cefed86731ba4baa3b4dfdc06c1
https://git.kernel.org/stable/c/d091e579b864fa790dd6a0cd537a22c383126681
https://git.kernel.org/stable/c/cfe34d86ef9765c388f145039006bb79b6c81ac6
https://git.kernel.org/stable/c/c7af99cc21923a9650533c9d77265c8dd683a533
https://git.kernel.org/stable/c/aea5e2669c2863fdd8679c40ee310b3bcaa85aec
https://git.kernel.org/stable/c/989bf6fd1e1d058e73a364dce1a0c53d33373f62