------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: __ll_sc_atomic_fetch_sub_release arch/arm64/include/asm/atomic_ll_sc.h:-1 [inline] ODEBUG: free active (active state 0) object type: timer_list hint: arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] ODEBUG: free active (active state 0) object type: timer_list hint: atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:177 [inline] ODEBUG: free active (active state 0) object type: timer_list hint: __refcount_sub_and_test include/linux/refcount.h:272 [inline] ODEBUG: free active (active state 0) object type: timer_list hint: __refcount_dec_and_test include/linux/refcount.h:315 [inline] ODEBUG: free active (active state 0) object type: timer_list hint: refcount_dec_and_test include/linux/refcount.h:333 [inline] ODEBUG: free active (active state 0) object type: timer_list hint: ax25_cb_put include/net/ax25.h:282 [inline] ODEBUG: free active (active state 0) object type: timer_list hint: rose_link_up net/rose/rose_link.c:131 [inline] ODEBUG: free active (active state 0) object type: timer_list hint: rose_t0timer_expiry+0x0/0x344 net/rose/rose_link.c:271 WARNING: CPU: 1 PID: 7333 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline] WARNING: CPU: 1 PID: 7333 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:979 [inline] WARNING: CPU: 1 PID: 7333 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x38c/0x46c lib/debugobjects.c:1009 Modules linked in: CPU: 1 PID: 7333 Comm: syz.2.824 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:515 [inline] pc : __debug_check_no_obj_freed lib/debugobjects.c:979 [inline] pc : debug_check_no_obj_freed+0x38c/0x46c lib/debugobjects.c:1009 lr : debug_print_object lib/debugobjects.c:515 [inline] lr : __debug_check_no_obj_freed lib/debugobjects.c:979 [inline] lr : debug_check_no_obj_freed+0x38c/0x46c lib/debugobjects.c:1009 sp : ffff800008017a10 x29: ffff800008017a50 x28: ffff0000c4ec8a00 x27: 0000000000000000 x26: ffff800011bab020 x25: ffff0000c4ec8890 x24: ffff800010b810c8 x23: ffff0000cc990850 x22: ffff0000c4ec8000 x21: dfff800000000000 x20: 0000000000000000 x19: ffff0000c4ec8800 x18: ffff800011b8bf60 x17: 6e6968207473696c x16: ffff8000082d9364 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe00033eac9a3 x12: 0000000000ff0100 x11: ff00800008194238 x10: 0000000000000000 x9 : 4f8754a25f6e3200 x8 : 4f8754a25f6e3200 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800008017498 x4 : ffff8000152f4cc0 x3 : ffff80000853857c x2 : 0000000000000001 x1 : 0000000100000102 x0 : 0000000000000000 Call trace: debug_print_object lib/debugobjects.c:515 [inline] __debug_check_no_obj_freed lib/debugobjects.c:979 [inline] debug_check_no_obj_freed+0x38c/0x46c lib/debugobjects.c:1009 slab_free_hook mm/slub.c:1704 [inline] slab_free_freelist_hook+0x104/0x1e8 mm/slub.c:1755 slab_free mm/slub.c:3687 [inline] __kmem_cache_free+0xbc/0x218 mm/slub.c:3700 kfree+0xd0/0x1a8 mm/slab_common.c:988 rose_neigh_put include/net/rose.h:166 [inline] rose_timer_expiry+0x43c/0x5a0 net/rose/rose_timer.c:183 call_timer_fn+0x1b8/0x95c kernel/time/timer.c:1701 expire_timers kernel/time/timer.c:1752 [inline] __run_timers+0x478/0x6f0 kernel/time/timer.c:2023 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:2036 handle_softirqs+0x318/0xc60 kernel/softirq.c:596 __do_softirq+0x14/0x20 kernel/softirq.c:630 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:897 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85 invoke_softirq kernel/softirq.c:477 [inline] __irq_exit_rcu+0x23c/0x438 kernel/softirq.c:679 irq_exit_rcu+0x14/0x84 kernel/softirq.c:691 __el1_irq arch/arm64/kernel/entry-common.c:472 [inline] el1_interrupt+0x38/0x54 arch/arm64/kernel/entry-common.c:486 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:581 arch_local_irq_enable arch/arm64/include/asm/irqflags.h:35 [inline] raw_spin_rq_unlock_irq kernel/sched/sched.h:1374 [inline] finish_lock_switch+0xb8/0x1c4 kernel/sched/core.c:5004 finish_task_switch+0x120/0x60c kernel/sched/core.c:5122 context_switch kernel/sched/core.c:5248 [inline] __schedule+0xdd4/0x1b0c kernel/sched/core.c:6562 schedule+0xc4/0x170 kernel/sched/core.c:6638 schedule_timeout+0xc8/0x2f4 kernel/time/timer.c:2144 unix_wait_for_peer+0x184/0x258 net/unix/af_unix.c:1449 unix_dgram_sendmsg+0xbd0/0x1268 net/unix/af_unix.c:2049 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x5c8/0x938 net/socket.c:2518 ___sys_sendmsg net/socket.c:2572 [inline] __sys_sendmmsg+0x344/0x834 net/socket.c:2658 __do_sys_sendmmsg net/socket.c:2687 [inline] __se_sys_sendmmsg net/socket.c:2684 [inline] __arm64_sys_sendmmsg+0xa0/0xbc net/socket.c:2684 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 47895 hardirqs last enabled at (47894): [] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:261 hardirqs last disabled at (47895): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (42572): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (47815): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---