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ODEBUG: free active (active state 0) object: ffff88802bddba78 object type: timer_list hint: br_ip6_multicast_port_query_expired+0x0/0x20 net/bridge/br_private.h:1291
WARNING: lib/debugobjects.c:629 at debug_print_object+0x18e/0x2a0 lib/debugobjects.c:629, CPU#0: dhcpcd-run-hook/19666
Modules linked in:
CPU: 0 UID: 0 PID: 19666 Comm: dhcpcd-run-hook Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:debug_print_object+0x19b/0x2a0 lib/debugobjects.c:629
Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4f 48 8d 3d 32 8d e5 0b 41 56 48 8b 14 dd 60 17 1b 8c 4c 89 e6 <67> 48 0f b9 3a 58 83 05 0c 4d db 0b 01 48 83 c4 18 5b 5d 41 5c 41
RSP: 0018:ffffc90000007be8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffffffff8c1b16a0 RSI: ffffffff8c1b12c0 RDI: ffffffff90e40420
RBP: 0000000000000001 R08: ffff88802bddba78 R09: ffffffff8bb2b920
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8c1b12c0
R13: ffffffff8bb2b960 R14: ffffffff8a62fcb0 R15: ffffc90000007ce8
FS: 0000000000000000(0000) GS:ffff888124342000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f4f7ff8 CR3: 0000000044894000 CR4: 00000000003526f0
DR0: 0000000000000004 DR1: 0000000000000007 DR2: 0000000000000004
DR3: 0000000000000008 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
__debug_check_no_obj_freed lib/debugobjects.c:1116 [inline]
debug_check_no_obj_freed+0x4da/0x630 lib/debugobjects.c:1146
slab_free_hook mm/slub.c:2616 [inline]
slab_free mm/slub.c:6165 [inline]
kfree+0x38f/0x6b0 mm/slub.c:6483
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x1f7/0x640 lib/kobject.c:737
rcu_do_batch kernel/rcu/tree.c:2617 [inline]
rcu_core+0x5a2/0x10d0 kernel/rcu/tree.c:2869
handle_softirqs+0x1eb/0x9e0 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xef/0x150 kernel/softirq.c:723
irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1056
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 16 07 52 f6 48 89 df e8 fe 56 52 f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 c5 75 42 f6 65 8b 05 5e fe 7a 08 85 c0 74 16 5b
RSP: 0018:ffffc9000d6372d8 EFLAGS: 00000246
RAX: 0000000000000006 RBX: ffffffff9b358e28 RCX: 0000000000000040
RDX: 0000000000000000 RSI: ffffffff8de76c00 RDI: ffffffff8c1b05a0
RBP: 0000000000000286 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000200 R14: 0000000000000286 R15: 00000000000001ce
spin_unlock_irqrestore include/linux/spinlock.h:407 [inline]
avc_reclaim_node security/selinux/avc.c:488 [inline]
avc_alloc_node+0x3f5/0x670 security/selinux/avc.c:507
avc_update_node.isra.0+0x48/0xb90 security/selinux/avc.c:841
avc_denied+0x141/0x190 security/selinux/avc.c:1007
avc_perm_nonode+0x164/0x180 security/selinux/avc.c:1120
avc_has_perm_noaudit+0x2d4/0x3b0 security/selinux/avc.c:1160
cred_has_capability security/selinux/hooks.c:1665 [inline]
selinux_vm_enough_memory+0x129/0x190 security/selinux/hooks.c:2239
security_vm_enough_memory_mm+0x96/0x110 security/security.c:722
__mmap_setup mm/vma.c:2433 [inline]
__mmap_region+0x1d05/0x29e0 mm/vma.c:2741
mmap_region+0x180/0x3e0 mm/vma.c:2837
do_mmap+0xc63/0x12f0 mm/mmap.c:559
vm_mmap_pgoff+0x29e/0x470 mm/util.c:581
ksys_mmap_pgoff+0xe1/0x650 mm/mmap.c:605
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2966448242
Code: 08 00 04 00 00 eb e2 90 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 33 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5e 5b 5d c3 0f 1f 00 c7 05 46 40 01 00 16 00
RSP: 002b:00007ffe80608448 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2966448242
RDX: 0000000000000003 RSI: 0000000000002000 RDI: 0000000000000000
RBP: 0000000000000022 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000002000
R13: 0000000000000001 R14: 000003126d27135a R15: 0000000000000000
----------------
Code disassembly (best guess):
0: b8 00 00 00 00 mov $0x0,%eax
5: 00 fc add %bh,%ah
7: ff lcall (bad)
8: df 48 89 fisttps -0x77(%rax)
b: fa cli
c: 48 c1 ea 03 shr $0x3,%rdx
10: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
14: 75 4f jne 0x65
16: 48 8d 3d 32 8d e5 0b lea 0xbe58d32(%rip),%rdi # 0xbe58d4f
1d: 41 56 push %r14
1f: 48 8b 14 dd 60 17 1b mov -0x73e4e8a0(,%rbx,8),%rdx
26: 8c
27: 4c 89 e6 mov %r12,%rsi
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 58 pop %rax
30: 83 05 0c 4d db 0b 01 addl $0x1,0xbdb4d0c(%rip) # 0xbdb4d43
37: 48 83 c4 18 add $0x18,%rsp
3b: 5b pop %rbx
3c: 5d pop %rbp
3d: 41 5c pop %r12
3f: 41 rex.B