------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff88805e5ed490 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350
WARNING: CPU: 0 PID: 12483 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline]
WARNING: CPU: 0 PID: 12483 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:990 [inline]
WARNING: CPU: 0 PID: 12483 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x446/0x540 lib/debugobjects.c:1020
Modules linked in:
CPU: 0 PID: 12483 Comm: syz.4.1677 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
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 60 93 1c 8b 48 c7 c6 c0 8f 1c 8b 48 c7 c2 e0 94 1c 8b 8b 0c 24 4d 89 f8 41 55 e8 8e 91 1f fd 48 83 c4 08 <0f> 0b 4c 8b 6c 24 18 48 b9 00 00 00 00 00 fc ff df ff 05 b3 f0 59
RSP: 0018:ffffc90000007a50 EFLAGS: 00010296
RAX: cbcce2ef47c9bd00 RBX: ffffffff974b02a8 RCX: ffff8880318e5a00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffffff8accac00 R08: ffffc90000007747 R09: 1ffff92000000ee8
R10: dffffc0000000000 R11: fffff52000000ee9 R12: ffff88805e5ed600
R13: ffffffff897ac5a0 R14: ffff88805e5ed000 R15: ffff88805e5ed490
FS:  00007efc7d2076c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f29679456b8 CR3: 00000000567ac000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 slab_free_hook mm/slub.c:1786 [inline]
 slab_free_freelist_hook+0xd2/0x1a0 mm/slub.c:1837
 slab_free mm/slub.c:3830 [inline]
 __kmem_cache_free+0xba/0x1e0 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+0x189/0x540 kernel/time/timer.c:1701
 expire_timers kernel/time/timer.c:1752 [inline]
 __run_timers+0x542/0x800 kernel/time/timer.c:2023
 run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2036
 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+0xd3/0x190 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+0x0/0x590 net/socket.c:2845
Code: 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 36 40 15 02 e8 11 5c 16 f9 e9 ac fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 <f3> 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48
RSP: 0018:ffffc900055b7c78 EFLAGS: 00000202
RAX: ffffffff8870d565 RBX: 0000000000000002 RCX: 0000000000000002
RDX: ffffc900055b7d20 RSI: 00002000000bf880 RDI: ffff888077fac800
RBP: ffffc900055b7e50 R08: 0000000000002fdf R09: 1ffffffff1d16055
R10: dffffc0000000000 R11: fffffbfff1d16056 R12: dffffc0000000000
R13: 00002000000bf880 R14: 0000000000002fdf R15: 1ffff92000ab6f9c
 do_recvmmsg+0x39a/0x870 net/socket.c:2949
 __sys_recvmmsg net/socket.c:3028 [inline]
 __do_sys_recvmmsg net/socket.c:3051 [inline]
 __se_sys_recvmmsg net/socket.c:3044 [inline]
 __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3044
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7efc7c39c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007efc7d207028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007efc7c616090 RCX: 00007efc7c39c799
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007efc7c432c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efc7c616128 R14: 00007efc7c616090 R15: 00007ffcba28afd8
 </TASK>
----------------
Code disassembly (best guess):
   0:	48 8d 65 d8          	lea    -0x28(%rbp),%rsp
   4:	5b                   	pop    %rbx
   5:	41 5c                	pop    %r12
   7:	41 5d                	pop    %r13
   9:	41 5e                	pop    %r14
   b:	41 5f                	pop    %r15
   d:	5d                   	pop    %rbp
   e:	c3                   	ret
   f:	e8 36 40 15 02       	call   0x215404a
  14:	e8 11 5c 16 f9       	call   0xf9165c2a
  19:	e9 ac fe ff ff       	jmp    0xfffffeca
  1e:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  25:	00 00 00
  28:	66 90                	xchg   %ax,%ax
* 2a:	f3 0f 1e fa          	endbr64 <-- trapping instruction
  2e:	55                   	push   %rbp
  2f:	48 89 e5             	mov    %rsp,%rbp
  32:	41 57                	push   %r15
  34:	41 56                	push   %r14
  36:	41 55                	push   %r13
  38:	41 54                	push   %r12
  3a:	53                   	push   %rbx
  3b:	48 83 e4 e0          	and    $0xffffffffffffffe0,%rsp
  3f:	48                   	rex.W