------------[ cut here ]------------ ODEBUG: free active (active state 0) object: ffff888056bb14e8 object type: work_struct hint: kcm_tx_work+0x0/0x180 net/kcm/kcmsock.c:-1 WARNING: CPU: 0 PID: 7870 at lib/debugobjects.c:615 debug_print_object lib/debugobjects.c:612 [inline] WARNING: CPU: 0 PID: 7870 at lib/debugobjects.c:615 __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline] WARNING: CPU: 0 PID: 7870 at lib/debugobjects.c:615 debug_check_no_obj_freed+0x44b/0x540 lib/debugobjects.c:1129 Modules linked in: CPU: 0 UID: 0 PID: 7870 Comm: syz.2.154 Not tainted 6.16.0-rc6-syzkaller-00248-g27c2570359d6 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:debug_print_object lib/debugobjects.c:612 [inline] RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:1099 [inline] RIP: 0010:debug_check_no_obj_freed+0x44b/0x540 lib/debugobjects.c:1129 Code: 4c 8b 4d 00 48 c7 c7 80 75 7d 8b 48 c7 c6 00 72 7d 8b 48 c7 c2 00 77 7d 8b 8b 0c 24 4d 89 f8 41 55 e8 69 04 01 fd 48 83 c4 08 <0f> 0b 4c 8b 6c 24 18 48 b9 00 00 00 00 00 fc ff df ff 05 6a 9d b4 RSP: 0018:ffffc9000c267bc0 EFLAGS: 00010296 RAX: cd9a907f9d455b00 RBX: ffffffff99545cb0 RCX: ffff888024201e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: ffffffff8b29d960 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1b3a680 R12: ffff888056bb1600 R13: ffffffff8a49d9d0 R14: ffff888056bb1000 R15: ffff888056bb14e8 FS: 00007ff73c1416c0(0000) GS:ffff888126624000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff73c141d58 CR3: 00000000332e0000 CR4: 00000000003526f0 Call Trace: slab_free_hook mm/slub.c:2312 [inline] slab_free mm/slub.c:4643 [inline] kmem_cache_free+0x113/0x3f0 mm/slub.c:4745 sk_prot_free net/core/sock.c:2284 [inline] __sk_destruct+0x4d2/0x660 net/core/sock.c:2381 kcm_release+0x528/0x5c0 net/kcm/kcmsock.c:1731 __sock_release net/socket.c:647 [inline] sock_close+0xc3/0x240 net/socket.c:1391 __fput+0x44c/0xa70 fs/file_table.c:465 fput_close_sync+0x119/0x200 fs/file_table.c:570 __do_sys_close fs/open.c:1589 [inline] __se_sys_close fs/open.c:1574 [inline] __x64_sys_close+0x7f/0x110 fs/open.c:1574 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x8a/0x300 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7ff73b38e9a9 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:00007ff73c141038 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 00007ff73b5b6160 RCX: 00007ff73b38e9a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 RBP: 00007ff73b410d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ff73b5b6160 R15: 00007ffe29685218