syzbot

executing program
executing program
BUG: memory leak
unreferenced object 0xffff88810b810f00 (size 96):
  comm "syz-executor113", pid 3606, jiffies 4294944081 (age 12.460s)
  hex dump (first 32 bytes):
    01 00 00 00 48 00 00 00 00 00 08 00 00 00 00 00  ....H...........
    00 00 00 00 00 00 00 00 40 0f 81 0b 81 88 ff ff  ........@.......
  backtrace:
    [<ffffffff83855781>] kmalloc include/linux/slab.h:605 [inline]
    [<ffffffff83855781>] sock_kmalloc net/core/sock.c:2563 [inline]
    [<ffffffff83855781>] sock_kmalloc+0x61/0x90 net/core/sock.c:2554
    [<ffffffff83d3fa60>] ipv6_renew_options+0x120/0x440 net/ipv6/exthdrs.c:1318
    [<ffffffff83d138ad>] ipv6_set_opt_hdr net/ipv6/ipv6_sockglue.c:354 [inline]
    [<ffffffff83d138ad>] do_ipv6_setsockopt.constprop.0+0x49d/0x24d0 net/ipv6/ipv6_sockglue.c:668
    [<ffffffff83d1599e>] ipv6_setsockopt+0xbe/0x120 net/ipv6/ipv6_sockglue.c:1021
    [<ffffffff838517d0>] __sys_setsockopt+0x1b0/0x390 net/socket.c:2254
    [<ffffffff838519d2>] __do_sys_setsockopt net/socket.c:2265 [inline]
    [<ffffffff838519d2>] __se_sys_setsockopt net/socket.c:2262 [inline]
    [<ffffffff838519d2>] __x64_sys_setsockopt+0x22/0x30 net/socket.c:2262
    [<ffffffff845ad915>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff845ad915>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84600087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd