[PATCH 3.18 11/33] ipv6: Prevent overrun when parsing v6 header options

3.18-stable review patch. If anyone has any objections, please let me know. -- From: Craig Gallek [ Upstream commit 2423496af35d94a87156b063ea5cedffc10a70a1 ] The KASAN warning repoted below was discovered with a syzkaller program. The reproducer is

[PATCH 3.18 11/33] ipv6: Prevent overrun when parsing v6 header options

3.18-stable review patch. If anyone has any objections, please let me know. -- From: Craig Gallek [ Upstream commit 2423496af35d94a87156b063ea5cedffc10a70a1 ] The KASAN warning repoted below was discovered with a syzkaller program. The reproducer is basically: int s =