ipv6: sr: fix out-of-bounds read when setting HMAC data.
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.213 by commit 3df71e11a4773d775c3633c44319f7acdb89011c, it was introduced in version v4.10 by commit 4f4853dc1c9c1994f6f756eabdcc25374ff271d9. For more details please see the references link.