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ODEBUG: activate active (active state 0) object: ffff88802630a698 object type: rcu_head hint: 0x0
WARNING: CPU: 0 PID: 5830 at lib/debugobjects.c:615 debug_print_object+0x17a/0x1f0 lib/debugobjects.c:612
Modules linked in:
CPU: 0 UID: 0 PID: 5830 Comm: syz-executor Not tainted 6.15.0-rc1-next-20250409-syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:debug_print_object+0x17a/0x1f0 lib/debugobjects.c:612
Code: e8 2b df 1f fd 4c 8b 0b 48 c7 c7 60 f0 a1 8c 48 8b 74 24 08 48 89 ea 44 89 e1 4d 89 f8 ff 34 24 e8 4b af 74 fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 78 7c 52 0b 48 83 c4 10 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc90000007838 EFLAGS: 00010282
RAX: 8a242359ca000700 RBX: ffffffff8c4bc4e0 RCX: ffff88807aca9e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff8ca1f1e0 R08: ffffffff81829ed2 R09: fffffbfff1d7ab00
R10: dffffc0000000000 R11: fffffbfff1d7ab00 R12: 0000000000000000
R13: ffffffff8ca1f0f8 R14: dffffc0000000000 R15: ffff88802630a698
FS: 0000555581397500(0000) GS:ffff888124f81000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbe796d56c0 CR3: 0000000076bfc000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
debug_object_activate+0x350/0x5c0 lib/debugobjects.c:842
debug_rcu_head_queue kernel/rcu/rcu.h:224 [inline]
__call_rcu_common kernel/rcu/tree.c:3067 [inline]
call_rcu+0x99/0xad0 kernel/rcu/tree.c:3202
radix_tree_node_free lib/radix-tree.c:310 [inline]
delete_node+0x1b2/0x780 lib/radix-tree.c:573
radix_tree_delete_item+0x2e6/0x3f0 lib/radix-tree.c:1430
afs_cell_destroy+0x175/0x2c0 fs/afs/cell.c:522
rcu_do_batch kernel/rcu/tree.c:2568 [inline]
rcu_core+0xaac/0x17a0 kernel/rcu/tree.c:2824
handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd9/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 2b 00 74 08 4c 89 f7 e8 cd 08 f8 f5 f6 44 24 21 02 75 55 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 12 02 5b f5 65 8b 05 eb 2c 34 07 85 c0 74 46 48 c7 04 24 0e 36
RSP: 0018:ffffc90003f974e0 EFLAGS: 00000206
RAX: 8a242359ca000700 RBX: 1ffff920007f2ea0 RCX: 0000000000000006
RDX: 0000000000000006 RSI: ffffffff8e6aa9ec RDI: 0000000000000001
RBP: ffffc90003f97570 R08: ffffffff90603a77 R09: 1ffffffff20c074e
R10: dffffc0000000000 R11: fffffbfff20c074f R12: 1ffff920007f2e9c
R13: dffffc0000000000 R14: ffffc90003f97500 R15: 0000000000000246
__debug_check_no_obj_freed lib/debugobjects.c:1108 [inline]
debug_check_no_obj_freed+0x572/0x590 lib/debugobjects.c:1129
free_pages_prepare mm/page_alloc.c:1263 [inline]
free_unref_folios+0x57d/0x1830 mm/page_alloc.c:2775
folios_put_refs+0x70a/0x800 mm/swap.c:992
folio_batch_release include/linux/pagevec.h:101 [inline]
truncate_inode_pages_range+0x462/0x10e0 mm/truncate.c:379
kill_bdev block/bdev.c:91 [inline]
blkdev_flush_mapping+0x108/0x270 block/bdev.c:674
blkdev_put_whole block/bdev.c:681 [inline]
bdev_release+0x460/0x700 block/bdev.c:1106
blkdev_release+0x15/0x20 block/fops.c:660
__fput+0x3e9/0x9f0 fs/file_table.c:465
task_work_run+0x251/0x310 kernel/task_work.c:227
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdec858e497
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffcef18c068 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdec860e51c RCX: 00007fdec858e497
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcef18c120
RBP: 00007ffcef18c120 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcef18d1b0
R13: 00007fdec860e51c R14: 0000000000018b3c R15: 00007ffcef18d1f0
----------------
Code disassembly (best guess):
0: 9c pushf
1: 8f 44 24 20 pop 0x20(%rsp)
5: 42 80 3c 2b 00 cmpb $0x0,(%rbx,%r13,1)
a: 74 08 je 0x14
c: 4c 89 f7 mov %r14,%rdi
f: e8 cd 08 f8 f5 call 0xf5f808e1
14: f6 44 24 21 02 testb $0x2,0x21(%rsp)
19: 75 55 jne 0x70
1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 12 02 5b f5 call 0xf55b0241 <-- trapping instruction
2f: 65 8b 05 eb 2c 34 07 mov %gs:0x7342ceb(%rip),%eax # 0x7342d21
36: 85 c0 test %eax,%eax
38: 74 46 je 0x80
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss