------------[ 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: 0 PID: 862 at lib/debugobjects.c:328 debug_print_object lib/debugobjects.c:325 [inline]
WARNING: CPU: 0 PID: 862 at lib/debugobjects.c:328 __debug_check_no_obj_freed lib/debugobjects.c:785 [inline]
WARNING: CPU: 0 PID: 862 at lib/debugobjects.c:328 debug_check_no_obj_freed+0x5c0/0x740 lib/debugobjects.c:817
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 862 Comm: syz-executor.1 Not tainted 5.2.0-rc5+ #5
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+0x28a/0x7c9 kernel/panic.c:219
 __warn+0x216/0x220 kernel/panic.c:576
 report_bug+0x190/0x290 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 do_error_trap+0xd7/0x450 arch/x86/kernel/traps.c:272
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:986
RIP: 0010:debug_print_object lib/debugobjects.c:325 [inline]
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:785 [inline]
RIP: 0010:debug_check_no_obj_freed+0x5c0/0x740 lib/debugobjects.c:817
Code: 76 f2 4d fe 4c 89 fa 48 8b 4d b8 4c 8b 01 48 c7 c7 0c 56 66 88 48 c7 c6 6c 64 7e 88 44 89 e1 4c 8b 4d b0 31 c0 e8 10 9b e6 fd <0f> 0b 48 8b 4d d0 48 8b 55 c8 ff 05 c8 48 7c 05 48 b8 00 00 00 00
RSP: 0018:ffff88805489fb60 EFLAGS: 00010046
RAX: 88d79a0d47df2f00 RBX: 1ffff110152678b1 RCX: ffff88805526c180
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: ffff88805489fc00 R08: ffffffff815e87e4 R09: ffffed1015d440c2
R10: ffffed1015d440c2 R11: 1ffff11015d440c1 R12: 0000000000000000
R13: 1ffff110152678b3 R14: ffff8880a45678d8 R15: dffffc0000000000
 kmem_cache_free+0xb9/0x170 mm/slab.c:3697
 sk_prot_free net/core/sock.c:1637 [inline]
 __sk_destruct+0x558/0x660 net/core/sock.c:1725
 sk_destruct net/core/sock.c:1733 [inline]
 __sk_free+0x307/0x3d0 net/core/sock.c:1744
 sk_free+0x2a/0x40 net/core/sock.c:1755
 sock_put include/net/sock.h:1725 [inline]
 smc_release+0x4b3/0x620 net/smc/af_smc.c:182
 __sock_release net/socket.c:601 [inline]
 sock_close+0xdb/0x280 net/socket.c:1273
 __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:185 [inline]
 exit_to_usermode_loop arch/x86/entry/common.c:168 [inline]
 prepare_exit_to_usermode+0x402/0x4f0 arch/x86/entry/common.c:199
 syscall_return_slowpath+0x110/0x440 arch/x86/entry/common.c:279
 do_syscall_64+0x126/0x140 arch/x86/entry/common.c:304
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x412fb1
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:00007ffcb1e469b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000412fb1
RDX: 0000001b2de20000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000001 R08: ffffffff812c5aca R09: 00000000f3a3e1fc
R10: 00007ffcb1e46a90 R11: 0000000000000293 R12: 00000000007602f8
R13: 000000000009c01f R14: 000000000009c04c R15: 000000000075bf2c

======================================================