IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 9638 Comm: syz-executor.3 Not tainted 4.8.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88011eb1b000 task.stack: ffff88012ece0000 RIP: 0010:[] [] call_commit_handler.part.4+0x40/0xa0 net/wireless/wext-core.c:901 RSP: 0018:ffff88012ece7b20 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8801336c8000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88011eb1b810 RDI: ffff8801336c8200 RBP: ffff88012ece7b30 R08: 0000000000000006 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000008b04 R14: ffff88012ece7d10 R15: ffff8801336c8000 FS: 00007fd28f0cf700(0000) GS:ffff88013bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fba67c9108 CR3: 0000000134e97000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: 0000000000000004 ffffffff87565bf0 ffff88012ece7b78 ffffffff862b0609 ffff88012ece7c00 ffff8801ffffff8d 0000000000008b04 ffffffff875653e0 ffffffff862b2460 ffff88012ece7d00 ffff88012ece7c00 ffff88012ece7bc8 Call Trace: [] call_commit_handler net/wireless/wext-core.c:900 [inline] [] ioctl_standard_call+0x129/0x190 net/wireless/wext-core.c:1034 [] wireless_process_ioctl+0x369/0x4d0 net/wireless/wext-core.c:956 [] wext_ioctl_dispatch net/wireless/wext-core.c:992 [inline] [] wext_handle_ioctl+0xab/0x140 net/wireless/wext-core.c:1048 [] dev_ioctl+0x66b/0xcd0 net/core/dev_ioctl.c:564 [] sock_ioctl+0x1c1/0x390 net/socket.c:899 [] vfs_ioctl fs/ioctl.c:43 [inline] [] do_vfs_ioctl+0x17f/0xf30 fs/ioctl.c:679 [] SYSC_ioctl fs/ioctl.c:694 [inline] [] SyS_ioctl+0x74/0x80 fs/ioctl.c:685 [] entry_SYSCALL_64_fastpath+0x23/0xc1 Code: 81 c7 00 02 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 55 4c 8b a3 00 02 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 48 48 b8 00 00 00 00 00 fc ff df 4d 8b 24 24 4c RIP [] call_commit_handler.part.4+0x40/0xa0 net/wireless/wext-core.c:901 RSP ---[ end trace b16892b1726598ef ]---