------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff888086505090 object type: timer_list hint: rose_t0timer_expiry+0x0/0x560 net/rose/rose_link.c:-1
WARNING: lib/debugobjects.c:615 at debug_print_object lib/debugobjects.c:612 [inline], CPU#1: dhcpcd-run-hook/2127
WARNING: lib/debugobjects.c:615 at __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline], CPU#1: dhcpcd-run-hook/2127
WARNING: lib/debugobjects.c:615 at debug_check_no_obj_freed+0x405/0x550 lib/debugobjects.c:1129, CPU#1: dhcpcd-run-hook/2127
Modules linked in:
CPU: 1 UID: 0 PID: 2127 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:debug_print_object lib/debugobjects.c:612 [inline]
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:1099 [inline]
RIP: 0010:debug_check_no_obj_freed+0x44a/0x550 lib/debugobjects.c:1129
Code: 89 44 24 20 e8 b7 6b 7e fd 48 8b 44 24 20 4c 8b 4d 00 4c 89 ef 48 c7 c6 40 6b 27 8c 48 c7 c2 c0 70 27 8c 8b 0c 24 4d 89 f8 50 <67> 48 0f b9 3a 48 83 c4 08 4c 8b 6c 24 18 48 b9 00 00 00 00 00 fc
RSP: 0018:ffffc90000a08b68 EFLAGS: 00010246
RAX: ffffffff8a888d00 RBX: ffffffff9a511778 RCX: 0000000000000000
RDX: ffffffff8c2770c0 RSI: ffffffff8c276b40 RDI: ffffffff901b4570
RBP: ffffffff8bcf4a00 R08: ffff888086505090 R09: ffffffff8bcf5d20
R10: dffffc0000000000 R11: ffffffff81b099e0 R12: ffff888086505200
R13: ffffffff901b4570 R14: ffff888086505000 R15: ffff888086505090
FS:  0000000000000000(0000) GS:ffff8881255b0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2e8cf4db4c CR3: 0000000036d80000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 slab_free_hook mm/slub.c:2601 [inline]
 slab_free mm/slub.c:6082 [inline]
 kfree+0x13a/0x610 mm/slub.c:6399
 rose_neigh_put include/net/rose.h:166 [inline]
 rose_timer_expiry+0x4cb/0x600 net/rose/rose_timer.c:183
 call_timer_fn+0x192/0x5a0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2373 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2385
 run_timer_base kernel/time/timer.c:2394 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2404
 handle_softirqs+0x22a/0x7c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x5f/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+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:mas_safe_pivot lib/maple_tree.c:649 [inline]
RIP: 0010:mas_validate_limits lib/maple_tree.c:7051 [inline]
RIP: 0010:mt_validate+0xbf1/0x4320 lib/maple_tree.c:7173
Code: fe e8 23 23 2d f6 4c 89 7c 24 30 4c 39 fb 0f 83 1a 05 00 00 e8 b0 20 2d f6 48 8b 54 24 28 48 89 d0 48 c1 e8 03 42 0f b6 04 28 <84> c0 0f 85 db 04 00 00 44 0f b6 3a 0f b6 f3 44 89 ff e8 08 21 2d
RSP: 0018:ffffc9000c34f580 EFLAGS: 00000a02
RAX: 0000000000000004 RBX: 0000000000000004 RCX: ffff88803b109e40
RDX: ffffffff8d0811a1 RSI: 0000000000000010 RDI: 0000000000000004
RBP: ffffc9000c34f770 R08: ffff88803b109e40 R09: 0000000000000004
R10: 0000000000000003 R11: 0000000000000000 R12: ffff88805034be28
R13: dffffc0000000000 R14: 000055979067cfff R15: 0000000000000010
 validate_mm+0xd4/0x4c0 mm/vma.c:649
 vma_link+0x38c/0x490 mm/vma.c:1830
 insert_vm_struct+0x199/0x260 mm/vma.c:3288
 __install_special_mapping mm/mmap.c:1460 [inline]
 _install_special_mapping+0x1b0/0x350 mm/mmap.c:1496
 map_vdso+0x1d6/0x470 arch/x86/entry/vdso/vma.c:155
 load_elf_binary+0x1d81/0x2980 fs/binfmt_elf.c:1291
 search_binary_handler fs/exec.c:1664 [inline]
 exec_binprm fs/exec.c:1696 [inline]
 bprm_execve+0x93d/0x1410 fs/exec.c:1748
 do_execveat_common+0x50d/0x690 fs/exec.c:1846
 __do_sys_execve fs/exec.c:1930 [inline]
 __se_sys_execve fs/exec.c:1924 [inline]
 __x64_sys_execve+0x97/0xc0 fs/exec.c:1924
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f70a6760107
Code: Unable to access opcode bytes at 0x7f70a67600dd.
RSP: 002b:00007f70a65c9e68 EFLAGS: 00000202 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00007ffd1d43c940 RCX: 00007f70a6760107
RDX: 000055ac9c295690 RSI: 00007ffd1d43cb30 RDI: 000055ac66de56bd
RBP: 00007f70a65c9ff0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000202 R12: 0000000000000001
R13: 00007ffd1d43c620 R14: 00007f70a65c9f20 R15: 0000000000000040
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 44 24 20          	mov    %eax,0x20(%rsp)
   4:	e8 b7 6b 7e fd       	call   0xfd7e6bc0
   9:	48 8b 44 24 20       	mov    0x20(%rsp),%rax
   e:	4c 8b 4d 00          	mov    0x0(%rbp),%r9
  12:	4c 89 ef             	mov    %r13,%rdi
  15:	48 c7 c6 40 6b 27 8c 	mov    $0xffffffff8c276b40,%rsi
  1c:	48 c7 c2 c0 70 27 8c 	mov    $0xffffffff8c2770c0,%rdx
  23:	8b 0c 24             	mov    (%rsp),%ecx
  26:	4d 89 f8             	mov    %r15,%r8
  29:	50                   	push   %rax
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	48 83 c4 08          	add    $0x8,%rsp
  33:	4c 8b 6c 24 18       	mov    0x18(%rsp),%r13
  38:	48                   	rex.W
  39:	b9 00 00 00 00       	mov    $0x0,%ecx
  3e:	00 fc                	add    %bh,%ah