------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff88805ea90090 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350
WARNING: CPU: 1 PID: 15732 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline]
WARNING: CPU: 1 PID: 15732 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:990 [inline]
WARNING: CPU: 1 PID: 15732 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x446/0x540 lib/debugobjects.c:1020
Modules linked in:
CPU: 1 PID: 15732 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:debug_print_object lib/debugobjects.c:515 [inline]
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:990 [inline]
RIP: 0010:debug_check_no_obj_freed+0x446/0x540 lib/debugobjects.c:1020
Code: 4c 8b 4d 00 48 c7 c7 c0 74 fc 8a 48 c7 c6 20 71 fc 8a 48 c7 c2 40 76 fc 8a 8b 0c 24 4d 89 f8 41 55 e8 6e dd 29 fd 48 83 c4 08 <0f> 0b 4c 8b 6c 24 18 48 b9 00 00 00 00 00 fc ff df ff 05 a3 92 24
RSP: 0018:ffffc900001f0a50 EFLAGS: 00010296
RAX: 4f3bfd060f561a00 RBX: ffffffff971068b8 RCX: ffff88801ca4bc00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffffff8aac9f00 R08: ffffc900001f0647 R09: 1ffff9200003e0c8
R10: dffffc0000000000 R11: fffff5200003e0c9 R12: ffff88805ea90200
R13: ffffffff89678f70 R14: ffff88805ea90000 R15: ffff88805ea90090
FS:  00007ff04a23d880(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbc42dd1f98 CR3: 0000000025bf3000 CR4: 00000000003506e0
Call Trace:
 <IRQ>
 slab_free_hook mm/slub.c:1786 [inline]
 slab_free_freelist_hook+0xd2/0x1b0 mm/slub.c:1837
 slab_free mm/slub.c:3830 [inline]
 __kmem_cache_free+0xba/0x1f0 mm/slub.c:3843
 rose_neigh_put include/net/rose.h:166 [inline]
 rose_timer_expiry+0x4c6/0x5f0 net/rose/rose_timer.c:183
 call_timer_fn+0x16e/0x530 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x52d/0x7d0 kernel/time/timer.c:2022
 run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2035
 handle_softirqs+0x280/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xc7/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:206 [inline]
RIP: 0010:unwind_next_frame+0x1f2/0x2970 arch/x86/kernel/unwind_orc.c:494
Code: ff 00 00 00 81 40 0f 92 c5 4c 89 ff 48 c7 c6 00 00 a0 8a e8 80 ec 4a 00 49 81 ff 00 00 a0 8a 0f 93 c0 40 08 e8 4c 89 7c 24 48 <0f> 85 d7 00 00 00 49 29 df 49 c1 ef 08 8b 05 53 9b 42 0b 48 89 44
RSP: 0018:ffffc9000c68f418 EFLAGS: 00000246
RAX: ffffffff813aa500 RBX: ffffffff81000000 RCX: ffff88801ca4bc00
RDX: 0000000000000000 RSI: ffffffff8aa00000 RDI: ffffffff81ed196e
RBP: ffffc9000c68f500 R08: ffffc9000c68f5b0 R09: 0000000000000008
R10: 0000000000000004 R11: 0000000000000000 R12: ffffc9000c68f4e8
R13: dffffc0000000000 R14: ffffc9000c68f51d R15: ffffffff81ed196e
 arch_stack_walk+0x144/0x190 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4e/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x2e/0x50 mm/kasan/generic.c:522
 ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:164 [inline]
 slab_free_hook mm/slub.c:1811 [inline]
 slab_free_freelist_hook+0x130/0x1b0 mm/slub.c:1837
 slab_free mm/slub.c:3830 [inline]
 __kmem_cache_free+0xba/0x1f0 mm/slub.c:3843
 tomoyo_realpath_from_path+0x59d/0x5d0 security/tomoyo/realpath.c:286
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0x20f/0x4b0 security/tomoyo/file.c:822
 security_inode_getattr+0xd3/0x120 security/security.c:2153
 vfs_getattr fs/stat.c:173 [inline]
 vfs_statx+0x15f/0x6d0 fs/stat.c:248
 vfs_fstatat+0x12a/0x1b0 fs/stat.c:299
 __do_sys_newfstatat fs/stat.c:463 [inline]
 __se_sys_newfstatat fs/stat.c:457 [inline]
 __x64_sys_newfstatat+0x117/0x190 fs/stat.c:457
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ff049b11b0a
Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7
RSP: 002b:00007ffea31e0dd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 000000000000000f RCX: 00007ff049b11b0a
RDX: 00007ffea31e0de0 RSI: 00007ffea31e0eb0 RDI: 00000000ffffff9c
RBP: 00007ffea31e1ef0 R08: 0000000000000064 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffea31e1f00
R13: 0000000000000000 R14: 0000000000000008 R15: 000056116724ff10
 </TASK>
----------------
Code disassembly (best guess):
   0:	ff 00                	incl   (%rax)
   2:	00 00                	add    %al,(%rax)
   4:	81 40 0f 92 c5 4c 89 	addl   $0x894cc592,0xf(%rax)
   b:	ff 48 c7             	decl   -0x39(%rax)
   e:	c6 00 00             	movb   $0x0,(%rax)
  11:	a0 8a e8 80 ec 4a 00 	movabs 0x8149004aec80e88a,%al
  18:	49 81
  1a:	ff 00                	incl   (%rax)
  1c:	00 a0 8a 0f 93 c0    	add    %ah,-0x3f6cf076(%rax)
  22:	40 08 e8             	or     %bpl,%al
  25:	4c 89 7c 24 48       	mov    %r15,0x48(%rsp)
* 2a:	0f 85 d7 00 00 00    	jne    0x107 <-- trapping instruction
  30:	49 29 df             	sub    %rbx,%r15
  33:	49 c1 ef 08          	shr    $0x8,%r15
  37:	8b 05 53 9b 42 0b    	mov    0xb429b53(%rip),%eax        # 0xb429b90
  3d:	48                   	rex.W
  3e:	89                   	.byte 0x89
  3f:	44                   	rex.R