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ODEBUG: free active (active state 0) object: ffff8880508bb890 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350 net/rose/rose_link.c:-1
WARNING: CPU: 0 PID: 5814 at lib/debugobjects.c:615 debug_print_object+0x16b/0x1e0 lib/debugobjects.c:612
Modules linked in:
CPU: 0 UID: 0 PID: 5814 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:debug_print_object+0x16b/0x1e0 lib/debugobjects.c:612
Code: 4c 89 ff e8 77 e4 92 fd 4d 8b 0f 48 c7 c7 80 0f bf 8b 48 8b 34 24 4c 89 ea 89 e9 4d 89 f0 41 54 e8 4a 4b f0 fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 57 32 ea 0a 48 83 c4 08 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc90000007a00 EFLAGS: 00010296
RAX: bca2c52907e74e00 RBX: dffffc0000000000 RCX: ffff888079189e40
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bba650 R12: ffffffff8a393ee0
R13: ffffffff8bbf1100 R14: ffff8880508bb890 R15: ffffffff8b6cf600
FS: 000055558f42a500(0000) GS:ffff88812613d000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056020bf844b0 CR3: 00000000598e0000 CR4: 00000000003526f0
Call Trace:
__debug_check_no_obj_freed lib/debugobjects.c:1099 [inline]
debug_check_no_obj_freed+0x3a2/0x470 lib/debugobjects.c:1129
slab_free_hook mm/slub.c:2470 [inline]
slab_free mm/slub.c:6630 [inline]
kfree+0x115/0x6d0 mm/slub.c:6837
rose_neigh_put include/net/rose.h:166 [inline]
rose_timer_expiry+0x4cb/0x600 net/rose/rose_timer.c:183
call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1747
expire_timers kernel/time/timer.c:1798 [inline]
__run_timers kernel/time/timer.c:2372 [inline]
__run_timer_base+0x61a/0x860 kernel/time/timer.c:2384
run_timer_base kernel/time/timer.c:2393 [inline]
run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403
handle_softirqs+0x286/0x870 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723
irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:139 [inline]
RIP: 0010:wrmsrq arch/x86/include/asm/msr.h:199 [inline]
RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:212
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 e9 d0 50 d7 09 cc f3 0f 1e fa 89 f6 31 d2 e9 b2 8e 50 03 66
RSP: 0018:ffffc900040bfac8 EFLAGS: 00000246
RAX: 00000000000000f6 RBX: 0000000000000200 RCX: 000000000000083f
RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
RBP: ffffc900040bfba0 R08: ffffc900040bfb27 R09: 1ffff92000817f64
R10: dffffc0000000000 R11: fffff52000817f65 R12: ffff8880b8831401
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880b88314f0
__apic_send_IPI_self arch/x86/include/asm/apic.h:459 [inline]
arch_irq_work_raise+0x6d/0x80 arch/x86/kernel/irq_work.c:31
irq_work_raise kernel/irq_work.c:84 [inline]
__irq_work_queue_local+0x1d7/0x550 kernel/irq_work.c:112
irq_work_queue+0x99/0x140 kernel/irq_work.c:124
bpf_send_signal_common+0x3b4/0x540 kernel/trace/bpf_trace.c:871
____bpf_send_signal kernel/trace/bpf_trace.c:880 [inline]
bpf_send_signal+0x1d/0x30 kernel/trace/bpf_trace.c:878
bpf_prog_948316cddd0b7b1c+0x41/0x49
bpf_dispatcher_nop_func include/linux/bpf.h:1350 [inline]
__bpf_prog_run include/linux/filter.h:721 [inline]
bpf_prog_run include/linux/filter.h:728 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2075 [inline]
bpf_trace_run2+0x284/0x4b0 kernel/trace/bpf_trace.c:2116
__bpf_trace_sys_enter+0x38/0x60 include/trace/events/syscalls.h:18
__traceiter_sys_enter+0x2e/0x50 include/trace/events/syscalls.h:18
__do_trace_sys_enter include/trace/events/syscalls.h:18 [inline]
trace_sys_enter+0xb0/0x100 include/trace/events/syscalls.h:18
syscall_trace_enter+0xf9/0x160 kernel/entry/syscall-common.c:53
syscall_enter_from_user_mode_work include/linux/entry-common.h:95 [inline]
syscall_enter_from_user_mode include/linux/entry-common.h:125 [inline]
do_syscall_64+0xd3/0xfa0 arch/x86/entry/syscall_64.c:90
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe62032b779
Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25
RSP: 002b:00007fffe7561900 EFLAGS: 00000246 ORIG_RAX: 000000000000000f
RAX: ffffffffffffffda RBX: 00007fffe75623f0 RCX: 00007fe62032b779
RDX: 00007fffe7561900 RSI: 00007fffe7561a30 RDI: 0000000000000011
RBP: 0000000000000000 R08: 7fffffffffffffff R09: 3fffffffffffffff
R10: 4000000000000000 R11: 0000000000000246 R12: 00007fffe75622c0
R13: 0000000000000004 R14: 00007fffe7561eac R15: 00007fffe7561f40
----------------
Code disassembly (best guess):
0: 74 2a je 0x2c
2: 83 ff 30 cmp $0x30,%edi
5: 74 25 je 0x2c
7: eb 10 jmp 0x19
9: 81 ff d0 00 00 00 cmp $0xd0,%edi
f: 74 1b je 0x2c
11: 81 ff e0 00 00 00 cmp $0xe0,%edi
17: 74 13 je 0x2c
19: c1 ef 04 shr $0x4,%edi
1c: 81 c7 00 08 00 00 add $0x800,%edi
22: 89 f9 mov %edi,%ecx
24: 89 f0 mov %esi,%eax
26: 31 d2 xor %edx,%edx
28: 0f 30 wrmsr
* 2a: 66 90 xchg %ax,%ax <-- trapping instruction
2c: e9 d0 50 d7 09 jmp 0x9d75101
31: cc int3
32: f3 0f 1e fa endbr64
36: 89 f6 mov %esi,%esi
38: 31 d2 xor %edx,%edx
3a: e9 b2 8e 50 03 jmp 0x3508ef1
3f: 66 data16