------------[ cut here ]------------ ODEBUG: free active (active state 0) object: 000000009b7827c7 object type: timer_list hint: hash_netiface4_gc+0x0/0x554 net/netfilter/ipset/ip_set_hash_gen.h:446 WARNING: CPU: 0 PID: 8385 at lib/debugobjects.c:517 debug_print_object lib/debugobjects.c:514 [inline] WARNING: CPU: 0 PID: 8385 at lib/debugobjects.c:517 __debug_check_no_obj_freed lib/debugobjects.c:989 [inline] WARNING: CPU: 0 PID: 8385 at lib/debugobjects.c:517 debug_check_no_obj_freed+0x398/0x47c lib/debugobjects.c:1019 Modules linked in: CPU: 0 PID: 8385 Comm: syz-executor.2 Not tainted 6.8.0-rc3-syzkaller-gf735966ee23c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:514 [inline] pc : __debug_check_no_obj_freed lib/debugobjects.c:989 [inline] pc : debug_check_no_obj_freed+0x398/0x47c lib/debugobjects.c:1019 lr : debug_print_object lib/debugobjects.c:514 [inline] lr : __debug_check_no_obj_freed lib/debugobjects.c:989 [inline] lr : debug_check_no_obj_freed+0x398/0x47c lib/debugobjects.c:1019 sp : ffff80009a7969e0 x29: ffff80009a796a20 x28: 0000000000000000 x27: ffff80008aeec3c0 x26: ffff0000d8f6d050 x25: dfff800000000000 x24: 0000000000000000 x23: ffff8000936659f8 x22: ffff0000d8f6d000 x21: 0000000000000000 x20: ffff8000895bca78 x19: ffff0000d8f6d000 x18: ffff80009a795ec0 x17: 626f203763373238 x16: ffff80008ad653b8 x15: 0000000000000001 x14: 1fffe000367ff602 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000040000 x10: 000000000000627f x9 : 16e5b4eaa4e94e00 x8 : 16e5b4eaa4e94e00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009a7962d8 x4 : ffff80008ed517e0 x3 : ffff8000805b8d7c x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: debug_print_object lib/debugobjects.c:514 [inline] __debug_check_no_obj_freed lib/debugobjects.c:989 [inline] debug_check_no_obj_freed+0x398/0x47c lib/debugobjects.c:1019 slab_free_hook mm/slub.c:2093 [inline] slab_free mm/slub.c:4299 [inline] kfree+0x114/0x3cc mm/slub.c:4409 hash_netiface4_destroy+0x230/0x268 net/netfilter/ipset/ip_set_hash_gen.h:460 ip_set_create+0x904/0xf48 net/netfilter/ipset/ip_set_core.c:1157 nfnetlink_rcv_msg+0xa78/0xf80 net/netfilter/nfnetlink.c:302 netlink_rcv_skb+0x214/0x3c4 net/netlink/af_netlink.c:2543 nfnetlink_rcv+0x21c/0x1ed0 net/netfilter/nfnetlink.c:659 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1367 netlink_sendmsg+0x83c/0xb20 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x56c/0x840 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmsg+0x26c/0x33c net/socket.c:2667 __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2674 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 irq event stamp: 510 hardirqs last enabled at (509): [] __up_console_sem kernel/printk/printk.c:341 [inline] hardirqs last enabled at (509): [] __console_unlock kernel/printk/printk.c:2706 [inline] hardirqs last enabled at (509): [] console_unlock+0x17c/0x3d4 kernel/printk/printk.c:3038 hardirqs last disabled at (510): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436 softirqs last enabled at (504): [] softirq_handle_end kernel/softirq.c:399 [inline] softirqs last enabled at (504): [] __do_softirq+0xac8/0xce4 kernel/softirq.c:582 softirqs last disabled at (307): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 ---[ end trace 0000000000000000 ]---