------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff88802a608090 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350
WARNING: CPU: 0 PID: 11123 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline]
WARNING: CPU: 0 PID: 11123 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:990 [inline]
WARNING: CPU: 0 PID: 11123 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x446/0x540 lib/debugobjects.c:1020
Modules linked in:
CPU: 0 PID: 11123 Comm: syz.2.1165 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:ffffc90000007a50 EFLAGS: 00010296
RAX: ba8e098afd9de400 RBX: ffffffff97144628 RCX: ffff88802f55da00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffffff8aac9f00 R08: ffffc90000007647 R09: 1ffff92000000ec8
R10: dffffc0000000000 R11: fffff52000000ec9 R12: ffff88802a608200
R13: ffffffff89678f70 R14: ffff88802a608000 R15: ffff88802a608090
FS:  00007f1881eea6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc99e1cd000 CR3: 000000002ceb4000 CR4: 00000000003506f0
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:___sys_recvmsg+0x21d/0x510 net/socket.c:2859
Code: 2f 29 00 00 43 c6 44 2f 2b 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 a0 01 00 00 0f 85 31 02 00 00 89 d8 48 8d 65 d8 5b 41 5c <41> 5d 41 5e 41 5f 5d c3 49 8d 7c 24 40 48 89 f8 48 c1 e8 03 42 0f
RSP: 0018:ffffc90004197c58 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ba8e098afd9de400
RDX: 0000000000000002 RSI: ffffffff8afc6ae0 RDI: ffffffff8afc6aa0
RBP: ffffc90004197c70 R08: ffffc90004197687 R09: 1ffff92000832ed0
R10: dffffc0000000000 R11: fffff52000832ed1 R12: 000000000000d7fb
R13: dffffc0000000000 R14: 0000000000000002 R15: 1ffff92000832f58
 do_recvmmsg+0x360/0x7d0 net/socket.c:2950
 __sys_recvmmsg net/socket.c:3029 [inline]
 __do_sys_recvmmsg net/socket.c:3052 [inline]
 __se_sys_recvmmsg net/socket.c:3045 [inline]
 __x64_sys_recvmmsg+0x191/0x240 net/socket.c:3045
 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: 0033:0x7f1880f8f6c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1881eea038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f18811e6090 RCX: 00007f1880f8f6c9
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007f1881011f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f18811e6128 R14: 00007f18811e6090 R15: 00007ffd1f866f28
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	29 00                	sub    %eax,(%rax)
   2:	00 43 c6             	add    %al,-0x3a(%rbx)
   5:	44 2f                	rex.R (bad)
   7:	2b 00                	sub    (%rax),%eax
   9:	65 48 8b 04 25 28 00 	mov    %gs:0x28,%rax
  10:	00 00
  12:	48 3b 84 24 a0 01 00 	cmp    0x1a0(%rsp),%rax
  19:	00
  1a:	0f 85 31 02 00 00    	jne    0x251
  20:	89 d8                	mov    %ebx,%eax
  22:	48 8d 65 d8          	lea    -0x28(%rbp),%rsp
  26:	5b                   	pop    %rbx
  27:	41 5c                	pop    %r12
* 29:	41 5d                	pop    %r13 <-- trapping instruction
  2b:	41 5e                	pop    %r14
  2d:	41 5f                	pop    %r15
  2f:	5d                   	pop    %rbp
  30:	c3                   	ret
  31:	49 8d 7c 24 40       	lea    0x40(%r12),%rdi
  36:	48 89 f8             	mov    %rdi,%rax
  39:	48 c1 e8 03          	shr    $0x3,%rax
  3d:	42                   	rex.X
  3e:	0f                   	.byte 0xf