------------[ 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: 3924 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline] WARNING: CPU: 1 PID: 3924 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:979 [inline] WARNING: CPU: 1 PID: 3924 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x38c/0x46c lib/debugobjects.c:1009 Modules linked in: CPU: 1 PID: 3924 Comm: klogd Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 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: ffff0000f3149e00 x27: 0000000000000000 x26: ffff800011bab020 x25: ffff0000f3149c90 x24: ffff800010b854f0 x23: ffff0000cea85348 x22: ffff0000f3149000 x21: dfff800000000000 x20: 0000000000000000 x19: ffff0000f3149c00 x18: ffff800011b8bf60 x17: 6e6968207473696c x16: ffff8000082d91a4 x15: 0000000000000000 x14: 0000000000000001 x13: 1ffff00001002e90 x12: 0000000000ff0100 x11: ff00800008194238 x10: 0000000000000000 x9 : d8a972f5a3e7c600 x8 : d8a972f5a3e7c600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800008017498 x4 : ffff8000152f4cc0 x3 : ffff800008319560 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 do_softirq+0xf8/0x1a8 kernel/softirq.c:497 __local_bh_enable_ip+0x250/0x37c kernel/softirq.c:421 local_bh_enable+0x28/0x34 include/linux/bottom_half.h:33 put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:276 [inline] fpsimd_restore_current_state+0xe8/0x1fc arch/arm64/kernel/fpsimd.c:1768 do_notify_resume+0x1a28/0x2aa4 arch/arm64/kernel/signal.c:1154 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x98/0x128 arch/arm64/kernel/entry-common.c:638 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: 608931 hardirqs last enabled at (608930): [] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:261 hardirqs last disabled at (608931): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (608852): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (608853): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---