netlink: 2 bytes leftover after parsing attributes in process `syz-executor0'. IPv6: Can't replace route, no match found netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. ------------[ cut here ]------------ kernel BUG at net/ipv4/tcp_output.c:2817! invalid opcode: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 2946 Comm: sshd Not tainted 4.13.0-rc7+ #37 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801d3036340 task.stack: ffff8801d2a00000 RIP: 0010:__tcp_retransmit_skb+0x1d18/0x1fa0 net/ipv4/tcp_output.c:2817 RSP: 0018:ffff8801db307408 EFLAGS: 00010206 RAX: ffff8801d3036340 RBX: 0000000000000001 RCX: 00000000af6909f5 RDX: 0000000000000100 RSI: ffff8801cb03a300 RDI: ffff8801cb03a32c RBP: ffff8801db3075c8 R08: ffff88021fff905c R09: ffff88021fff9048 R10: 0000000000000000 R11: ffff88021fff905d R12: ffff8801cb03a386 R13: 00000000af690d85 R14: ffff8801cb03a300 R15: ffff8801cc709500 FS: 00007f65b454b7c0(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020e29000 CR3: 00000001d49d8000 CR4: 00000000001406e0 Call Trace: tcp_retransmit_skb+0x2e/0x230 net/ipv4/tcp_output.c:2891 tcp_retransmit_timer+0xcee/0x2a10 net/ipv4/tcp_timer.c:476 tcp_write_timer_handler+0x335/0x810 net/ipv4/tcp_timer.c:561 tcp_write_timer+0x146/0x160 net/ipv4/tcp_timer.c:579 call_timer_fn+0x233/0x830 kernel/time/timer.c:1281 expire_timers kernel/time/timer.c:1320 [inline] __run_timers+0x7fd/0xb90 kernel/time/timer.c:1620 run_timer_softirq+0x4c/0xb0 kernel/time/timer.c:1646 __do_softirq+0x2f5/0xba3 kernel/softirq.c:284 invoke_softirq kernel/softirq.c:364 [inline] irq_exit+0x1cc/0x200 kernel/softirq.c:405 exiting_irq arch/x86/include/asm/apic.h:638 [inline] smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:1044 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:702 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:814 [inline] RIP: 0010:lock_acquire+0x256/0x580 kernel/locking/lockdep.c:3858 RSP: 0018:ffff8801d2a07aa8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 RAX: dffffc0000000000 RBX: ffff8801d3036340 RCX: 0000000000000000 RDX: 1ffffffff0b59371 RSI: 00000000f1913b47 RDI: 0000000000000286 RBP: ffff8801d2a07ba0 R08: 0000000000000000 R09: 0000000000000005 R10: ffff8801d2a07a88 R11: ffffffff8195a590 R12: 1ffff1003a540f5b R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 __might_fault+0x13a/0x1d0 mm/memory.c:4337 __copy_to_user include/linux/uaccess.h:101 [inline] set_fd_set.part.0+0x34/0x70 fs/select.c:378 set_fd_set fs/select.c:666 [inline] core_sys_select+0x517/0x960 fs/select.c:666 SYSC_select fs/select.c:696 [inline] SyS_select+0x194/0x230 fs/select.c:678 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x7f65b28eadd3 RSP: 002b:00007ffceaf7c738 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 RAX: ffffffffffffffda RBX: 00007ffceaf7c7c0 RCX: 00007f65b28eadd3 RDX: 000055865f07aae0 RSI: 000055865f07ab00 RDI: 000000000000000c RBP: 0000000000000086 R08: 00007ffceaf7c760 R09: 0101010101010101 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001010001 R13: 0000000000c00000 R14: 00007f65b39a0c00 R15: 000055865f07be20 Code: ff e8 7d ef 94 fd e9 4b fb ff ff 48 8b bd a0 fe ff ff e8 cc ef 94 fd e9 fc f8 ff ff e8 c2 ef 94 fd e9 53 f6 ff ff e8 28 fe 60 fd <0f> 0b e8 b1 ef 94 fd e9 9e e5 ff ff 4c 89 e7 e8 44 ef 94 fd e9 RIP: __tcp_retransmit_skb+0x1d18/0x1fa0 net/ipv4/tcp_output.c:2817 RSP: ffff8801db307408 ---[ end trace 5fb593a55e148b2a ]---