WARNING: CPU: 0 PID: 2526 at net/ipv4/tcp.c:2415 tcp_close+0xf59/0x1300 net/ipv4/tcp.c:2415 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 2526 Comm: syz-executor1 Not tainted 4.19.0-rc5+ #158 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 panic+0x238/0x4e7 kernel/panic.c:184 __warn.cold.8+0x163/0x1ba kernel/panic.c:536 report_bug+0x254/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:993 RIP: 0010:tcp_close+0xf59/0x1300 net/ipv4/tcp.c:2415 Code: ff ff e8 3a d6 f2 fa be 07 00 00 00 48 89 df e8 3d e5 fe ff 4c 8d 63 28 48 89 df e8 91 da fd ff e9 cc f6 ff ff e8 17 d6 f2 fa <0f> 0b e9 55 f8 ff ff e8 0b d6 f2 fa be 07 00 00 00 48 89 df e8 0e RSP: 0018:ffff88017ad9f610 EFLAGS: 00010216 RAX: 0000000000040000 RBX: ffff88019286c380 RCX: ffffc90003e7e000 RDX: 000000000001d0d9 RSI: ffffffff868c0e09 RDI: 0000000000000005 RBP: ffff88017ad9f6d0 R08: ffff8801c7ebc640 R09: ffffed003250d881 R10: ffffed003250d881 R11: ffff88019286c40b R12: ffff88019286c3a8 R13: ffff88019286c408 R14: ffff88019286c400 R15: 0000000000000007 inet_release+0x104/0x1f0 net/ipv4/af_inet.c:428 inet6_release+0x50/0x70 net/ipv6/af_inet6.c:457 __sock_release+0xd7/0x250 net/socket.c:579 sock_close+0x19/0x20 net/socket.c:1141 __fput+0x385/0xa30 fs/file_table.c:278 ____fput+0x15/0x20 fs/file_table.c:309 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 get_signal+0x155e/0x1980 kernel/signal.c:2343 do_signal+0x9c/0x21e0 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_32_irqs_on arch/x86/entry/common.c:341 [inline] do_fast_syscall_32+0xcd5/0xfb2 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f6bca9 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 0c 24 c3 8b 1c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5f670cc EFLAGS: 00000296 ORIG_RAX: 0000000000000171 RAX: 0000000000364650 RBX: 0000000000000004 RCX: 0000000020000100 RDX: 00000000e8976aa5 RSI: 0000000020000004 RDI: 000000002031e000 RBP: 000000000000001c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..