------------[ cut here ]------------ ODEBUG: free active (active state 0) object: 00000000efce9099 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: 00000000efce9099 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: 00000000efce9099 object type: timer_list hint: raw_atomic_fetch_sub_release include/linux/atomic/atomic-arch-fallback.h:944 [inline] ODEBUG: free active (active state 0) object: 00000000efce9099 object type: timer_list hint: atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:401 [inline] ODEBUG: free active (active state 0) object: 00000000efce9099 object type: timer_list hint: __refcount_sub_and_test include/linux/refcount.h:389 [inline] ODEBUG: free active (active state 0) object: 00000000efce9099 object type: timer_list hint: __refcount_dec_and_test include/linux/refcount.h:432 [inline] ODEBUG: free active (active state 0) object: 00000000efce9099 object type: timer_list hint: refcount_dec_and_test include/linux/refcount.h:450 [inline] ODEBUG: free active (active state 0) object: 00000000efce9099 object type: timer_list hint: ax25_cb_put include/net/ax25.h:281 [inline] ODEBUG: free active (active state 0) object: 00000000efce9099 object type: timer_list hint: rose_link_up net/rose/rose_link.c:131 [inline] ODEBUG: free active (active state 0) object: 00000000efce9099 object type: timer_list hint: rose_t0timer_expiry+0x0/0x348 net/rose/rose_link.c:271 WARNING: lib/debugobjects.c:615 at debug_print_object lib/debugobjects.c:612 [inline], CPU#1: udevd/6209 WARNING: lib/debugobjects.c:615 at __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline], CPU#1: udevd/6209 WARNING: lib/debugobjects.c:615 at debug_check_no_obj_freed+0x390/0x470 lib/debugobjects.c:1129, CPU#1: udevd/6209 Modules linked in: CPU: 1 UID: 0 PID: 6209 Comm: udevd Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:612 [inline] pc : __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline] pc : debug_check_no_obj_freed+0x390/0x470 lib/debugobjects.c:1129 lr : debug_print_object lib/debugobjects.c:612 [inline] lr : __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline] lr : debug_check_no_obj_freed+0x390/0x470 lib/debugobjects.c:1129 sp : ffff800097bd7aa0 x29: ffff800097bd7ae0 x28: ffff0000cffd3a00 x27: 0000000000000000 x26: ffff80008b079660 x25: ffff0000cffd3890 x24: ffff80008a0fa744 x23: ffff0000ec58ae38 x22: ffff0000cffd3000 x21: dfff800000000000 x20: 0000000000000000 x19: ffff0000cffd3800 x18: 0000000000000000 x17: 626f203939303965 x16: ffff800082e5e68c x15: 0000000000000001 x14: 1ffff00012f7aec8 x13: 0000000000000000 x12: 0000000000000000 x11: 00000000000029bc x10: 0000000000ff0100 x9 : 7056bca8ba64bf00 x8 : 7056bca8ba64bf00 x7 : ffff8000805761f8 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000807f1260 x2 : 0000000000000001 x1 : 0000000000000101 x0 : 0000000000000000 Call trace: debug_print_object lib/debugobjects.c:612 [inline] (P) __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline] (P) debug_check_no_obj_freed+0x390/0x470 lib/debugobjects.c:1129 (P) slab_free_hook mm/slub.c:2471 [inline] slab_free mm/slub.c:6670 [inline] kfree+0x160/0x5fc mm/slub.c:6878 rose_neigh_put include/net/rose.h:166 [inline] rose_timer_expiry+0x43c/0x5ac net/rose/rose_timer.c:183 call_timer_fn+0x19c/0x814 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers kernel/time/timer.c:2373 [inline] __run_timer_base+0x51c/0x76c kernel/time/timer.c:2385 run_timer_base kernel/time/timer.c:2394 [inline] run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2404 handle_softirqs+0x31c/0xc88 kernel/softirq.c:622 __do_softirq+0x14/0x20 kernel/softirq.c:656 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:68 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:891 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:73 invoke_softirq kernel/softirq.c:503 [inline] __irq_exit_rcu+0x1b0/0x478 kernel/softirq.c:723 irq_exit_rcu+0x14/0x84 kernel/softirq.c:739 __el1_irq arch/arm64/kernel/entry-common.c:498 [inline] el1_interrupt+0x40/0x60 arch/arm64/kernel/entry-common.c:510 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:515 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:592 add_uevent_var+0x108/0x3a4 lib/kobject_uevent.c:678 (P) dev_uevent+0xd8/0x7b0 drivers/base/core.c:2666 uevent_show+0x19c/0x318 drivers/base/core.c:2756 dev_attr_show+0x60/0xcc drivers/base/core.c:2421 sysfs_kf_seq_show+0x2b4/0x420 fs/sysfs/file.c:65 kernfs_seq_show+0x150/0x1fc fs/kernfs/file.c:223 seq_read_iter+0x3b8/0xc34 fs/seq_file.c:230 kernfs_fop_read_iter+0x140/0x600 fs/kernfs/file.c:297 new_sync_read fs/read_write.c:491 [inline] vfs_read+0x670/0x93c fs/read_write.c:572 ksys_read+0x120/0x210 fs/read_write.c:715 __do_sys_read fs/read_write.c:724 [inline] __se_sys_read fs/read_write.c:722 [inline] __arm64_sys_read+0x7c/0x90 fs/read_write.c:722 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 6604183 hardirqs last enabled at (6604182): [] irqentry_exit+0x1b4/0x308 kernel/entry/common.c:219 hardirqs last disabled at (6604183): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (6604074): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (6604169): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]---