------------[ cut here ]------------ ODEBUG: free active (active state 0) object: ffff888056746768 object type: work_struct hint: kcm_tx_work+0x0/0x180 net/kcm/kcmsock.c:-1 WARNING: CPU: 1 PID: 6933 at lib/debugobjects.c:615 debug_print_object+0x16b/0x1e0 lib/debugobjects.c:612 Modules linked in: CPU: 1 UID: 0 PID: 6933 Comm: syz.2.31 Not tainted 6.16.0-syzkaller-12256-g561c80369df0 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:debug_print_object+0x16b/0x1e0 lib/debugobjects.c:612 Code: 4c 89 ff e8 57 19 53 fd 4d 8b 0f 48 c7 c7 a0 3d e3 8b 48 8b 34 24 4c 89 ea 89 e9 4d 89 f0 41 54 e8 8a 4a b3 fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 c7 af d3 0a 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 RSP: 0018:ffffc90002fa7b30 EFLAGS: 00010296 RAX: 87c1cbb5f891d800 RBX: dffffc0000000000 RCX: ffff888029deda00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa1ec R12: ffffffff8aa884b0 R13: ffffffff8be33f20 R14: ffff888056746768 R15: ffffffff8b89d380 FS: 00007f23b2dbc6c0(0000) GS:ffff888125d1c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005646b6a11950 CR3: 000000007e78c000 CR4: 00000000003526f0 Call Trace: __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline] debug_check_no_obj_freed+0x3a2/0x470 lib/debugobjects.c:1129 slab_free_hook mm/slub.c:2348 [inline] slab_free mm/slub.c:4680 [inline] kmem_cache_free+0x113/0x400 mm/slub.c:4782 sk_prot_free net/core/sock.c:2276 [inline] __sk_destruct+0x4d2/0x660 net/core/sock.c:2373 kcm_release+0x528/0x5c0 net/kcm/kcmsock.c:1736 __sock_release net/socket.c:649 [inline] sock_close+0xc3/0x240 net/socket.c:1439 __fput+0x449/0xa70 fs/file_table.c:468 fput_close_sync+0x119/0x200 fs/file_table.c:573 __do_sys_close fs/open.c:1587 [inline] __se_sys_close fs/open.c:1572 [inline] __x64_sys_close+0x7f/0x110 fs/open.c:1572 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f23b3b8e9a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f23b2dbc038 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 00007f23b3db6160 RCX: 00007f23b3b8e9a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 RBP: 00007f23b3c10d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f23b3db6160 R15: 00007fff6b4b17c8