WARNING: CPU: 0 PID: 12685 at lib/debugobjects.c:514 debug_print_object+0x1a3/0x2b0 lib/debugobjects.c:514 Modules linked in: CPU: 0 PID: 12685 Comm: syz-executor.3 Not tainted 6.8.0-rc2-syzkaller-00199-g021533194476 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:debug_print_object+0x1a3/0x2b0 lib/debugobjects.c:514 Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 54 48 8b 14 dd 80 cc 6e 8b 41 56 4c 89 e6 48 c7 c7 e0 bf 6e 8b e8 be 4b d6 fc 90 <0f> 0b 90 90 58 83 05 a5 f6 23 0b 01 48 83 c4 18 5b 5d 41 5c 41 5d RSP: 0018:ffffc900097e7038 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffc90009bba000 RDX: 0000000000040000 RSI: ffffffff81509966 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff8b6ec680 R13: ffffffff8b0f3480 R14: ffffffff891a9740 R15: ffffc900097e7148 FS: 00007f1056ac46c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 00000000327c0000 CR4: 0000000000350ef0 Call Trace: __debug_check_no_obj_freed lib/debugobjects.c:989 [inline] debug_check_no_obj_freed+0x4b8/0x600 lib/debugobjects.c:1019 slab_free_hook mm/slub.c:2093 [inline] slab_free mm/slub.c:4299 [inline] kfree+0x252/0x370 mm/slub.c:4409 hash_netiface4_destroy+0x204/0x3a0 net/netfilter/ipset/ip_set_hash_gen.h:460 ip_set_create+0xda2/0x1360 net/netfilter/ipset/ip_set_core.c:1157 nfnetlink_rcv_msg+0x9c6/0x11e0 net/netfilter/nfnetlink.c:302 netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2543 nfnetlink_rcv+0x1b4/0x430 net/netfilter/nfnetlink.c:659 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x545/0x820 net/netlink/af_netlink.c:1367 netlink_sendmsg+0x8bb/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0xab8/0xc90 net/socket.c:2584 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2638 __sys_sendmsg+0x117/0x1f0 net/socket.c:2667 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd8/0x270 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f1055c7dda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1056ac40c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f1055dabf80 RCX: 00007f1055c7dda9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00007f1055cca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f1055dabf80 R15: 00007ffc158ccb08