------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: work_struct hint: smc_tx_work+0x0/0x260 net/smc/smc_tx.c:264 WARNING: CPU: 1 PID: 15797 at lib/debugobjects.c:484 debug_print_object lib/debugobjects.c:481 [inline] WARNING: CPU: 1 PID: 15797 at lib/debugobjects.c:484 __debug_check_no_obj_freed lib/debugobjects.c:963 [inline] WARNING: CPU: 1 PID: 15797 at lib/debugobjects.c:484 debug_check_no_obj_freed+0x464/0x5b0 lib/debugobjects.c:994 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 15797 Comm: syz-executor.3 Not tainted 5.3.0-rc3+ #66 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+0x1d8/0x2f8 lib/dump_stack.c:113 panic+0x25c/0x799 kernel/panic.c:219 __warn+0x22f/0x230 kernel/panic.c:576 report_bug+0x190/0x290 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] do_error_trap+0xd7/0x440 arch/x86/kernel/traps.c:272 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:debug_print_object lib/debugobjects.c:481 [inline] RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:963 [inline] RIP: 0010:debug_check_no_obj_freed+0x464/0x5b0 lib/debugobjects.c:994 Code: 08 48 89 df e8 ad cb 58 fe 4c 8b 03 48 c7 c7 bd 50 45 88 48 c7 c6 04 73 43 88 4c 89 e2 44 89 f9 4d 89 e9 31 c0 e8 2c b3 f2 fd <0f> 0b 4c 8b 6d a8 ff 05 a4 6d 6a 05 49 83 c5 30 4c 89 e8 48 c1 e8 RSP: 0018:ffff88802c4afb70 EFLAGS: 00010046 RAX: e4184fd46f7df600 RBX: ffffffff888cc730 RCX: ffff88809f5ae5c0 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88802c4afc08 R08: ffffffff815cfa34 R09: ffffed1015d640d2 R10: ffffed1015d640d2 R11: 0000000000000000 R12: ffffffff884edf9a R13: ffffffff874441d0 R14: dffffc0000000000 R15: 0000000000000000 kmem_cache_free+0x6f/0xf0 mm/slab.c:3692 sk_prot_free net/core/sock.c:1638 [inline] __sk_destruct+0x558/0x660 net/core/sock.c:1726 sk_destruct net/core/sock.c:1734 [inline] __sk_free+0x317/0x3e0 net/core/sock.c:1745 sk_free+0x2a/0x40 net/core/sock.c:1756 sock_put include/net/sock.h:1725 [inline] smc_release+0x232/0x2c0 net/smc/af_smc.c:192 __sock_release net/socket.c:590 [inline] sock_close+0xe1/0x260 net/socket.c:1268 __fput+0x2e4/0x740 fs/file_table.c:280 ____fput+0x15/0x20 fs/file_table.c:313 task_work_run+0x17e/0x1b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:163 [inline] prepare_exit_to_usermode+0x459/0x580 arch/x86/entry/common.c:194 syscall_return_slowpath+0x113/0x4a0 arch/x86/entry/common.c:274 do_syscall_64+0x126/0x140 arch/x86/entry/common.c:299 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x413511 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffd79a142d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000413511 RDX: 0000001b2f120000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000050664b25 R09: 0000000050664b29 R10: 00007ffd79a143b0 R11: 0000000000000293 R12: 000000000075bf20 R13: 0000000000117b60 R14: 0000000000760478 R15: ffffffffffffffff Kernel Offset: disabled Rebooting in 86400 seconds..