Description: net: ip_tunnel: make sure to pull inner header in ip_tunnel_rcv()
References:
Notes:
 carnil> Introduced in c54419321455 ("GRE: Refactor GRE tunneling code."). Vulnerable
 carnil> versions: 3.10-rc1.
Bugs:
upstream: released (6.9-rc1) [b0ec2abf98267f14d032102551581c833b0659d3]
6.8-upstream-stable: released (6.8.2) [ca914f1cdee8a85799942c9b0ce5015bbd6844e1]
6.7-upstream-stable: released (6.7.11) [f6723d8dbfdc10c784a56748f86a9a3cd410dbd5]
6.6-upstream-stable: released (6.6.23) [c4c857723b37c20651300b3de4ff25059848b4b0]
6.1-upstream-stable: released (6.1.83) [60044ab84836359534bd7153b92e9c1584140e4a]
5.10-upstream-stable: released (5.10.214) [77fd5294ea09b21f6772ac954a121b87323cec80]
4.19-upstream-stable: needed
sid: released (6.7.12-1)
6.1-bookworm-security: released (6.1.85-1)
5.10-bullseye-security: needed
4.19-buster-security: needed