------------[ cut here ]------------ WARNING: CPU: 0 PID: 8898 at include/net/sock.h:666 sk_del_node_init include/net/sock.h:666 [inline] WARNING: CPU: 0 PID: 8898 at include/net/sock.h:666 smc_unhash_sk+0x1ea/0x260 net/smc/af_smc.c:96 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 8898 Comm: syz-executor309 Not tainted 5.4.0-rc3+ #0 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+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:sk_del_node_init include/net/sock.h:666 [inline] RIP: 0010:smc_unhash_sk+0x1ea/0x260 net/smc/af_smc.c:96 Code: ff ff ff ff e8 d7 3a 8b fe e8 12 59 5d fa 4c 89 ef e8 da 82 38 00 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 f6 58 5d fa <0f> 0b eb 86 4c 89 e7 e8 8a b7 98 fa e9 5f ff ff ff e8 a0 b7 98 fa RSP: 0018:ffff88808b23fd00 EFLAGS: 00010293 RAX: ffff8880988c01c0 RBX: ffff888095c19280 RCX: ffffffff8715bb9e RDX: 0000000000000000 RSI: ffffffff8715bc1a RDI: 0000000000000005 RBP: ffff88808b23fd30 R08: ffff8880988c01c0 R09: ffffed1012b83261 R10: ffffed1012b83260 R11: ffff888095c19303 R12: ffff888095c19300 R13: ffffffff89bad600 R14: ffff888095c192a8 R15: 0000000000000001 __smc_release+0x202/0x450 net/smc/af_smc.c:146 smc_release+0x10c/0x380 net/smc/af_smc.c:185 __sock_release+0xce/0x280 net/socket.c:590 sock_close+0x1e/0x30 net/socket.c:1268 __fput+0x2ff/0x890 fs/file_table.c:280 ____fput+0x16/0x20 fs/file_table.c:313 task_work_run+0x145/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x316/0x380 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline] syscall_return_slowpath arch/x86/entry/common.c:274 [inline] do_syscall_64+0x65f/0x760 arch/x86/entry/common.c:300 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x401fb0 Code: 01 f0 ff ff 0f 83 40 0d 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 7d 8b 2d 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 14 0d 00 00 c3 48 83 ec 08 e8 7a 02 00 00 RSP: 002b:00007fff652382a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000401fb0 RDX: 0000000000000017 RSI: 0000000000000006 RDI: 0000000000000003 RBP: 000000000001311f R08: 0000000000000004 R09: 0000000400000000 R10: 0000000020000240 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000004031e0 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..