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

ipvs: avoid out-of-bounds write in ip_vs_nat_icmp

Sashiko warns that local attacker can modify the packet
while it is processed by IPVS. Some places read the
IP ihl field multiple times which can cause out-of-bounds
access. One such place is ip_vs_nat_icmp where we
can write after the validated area.

Fix it by providing ciph argument just like it is done for
IPv6 and use ciph->len as offset to the embedded transport
header.

Modify some IPv4 header checks by reading the ihl field
only once.

https://git.kernel.org/stable/c/243d0187ec4c3837b9b0004f18d1068e46115760

https://git.kernel.org/stable/c/3b8f79af0e98f27b932b0b416e9c52b692d31ff9

https://git.kernel.org/stable/c/3c779b258c9c3c3567af68d4f45c2f751f35bd0e

https://git.kernel.org/stable/c/646922a0379496154e8c8faca4f8e2fd9100cacc

https://git.kernel.org/stable/c/a69a4b3fff5814d079beff9a1e9d369994b2ed47

https://git.kernel.org/stable/c/be65fa324640c7a95e30b146159a2be5cc73f22e

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