------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff888026831490 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350
WARNING: CPU: 1 PID: 19947 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline]
WARNING: CPU: 1 PID: 19947 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:990 [inline]
WARNING: CPU: 1 PID: 19947 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x446/0x540 lib/debugobjects.c:1020
Modules linked in:
CPU: 1 PID: 19947 Comm: syz.9.3218 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
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 20 98 1c 8b 48 c7 c6 80 94 1c 8b 48 c7 c2 a0 99 1c 8b 8b 0c 24 4d 89 f8 41 55 e8 de 83 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 13 f6 59
RSP: 0018:ffffc900001f0a50 EFLAGS: 00010296
RAX: 6de2f255febc4100 RBX: ffffffff9757d0d8 RCX: ffff8880309f5a00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffffff8accac60 R08: ffffc900001f0647 R09: 1ffff9200003e0c8
R10: dffffc0000000000 R11: fffff5200003e0c9 R12: ffff888026831600
R13: ffffffff897afb80 R14: ffff888026831000 R15: ffff888026831490
FS:  00007f1bf66636c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000404030 CR3: 000000006c283000 CR4: 00000000003506e0
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:security_sock_rcv_skb+0x0/0xa0 security/security.c:4380
Code: ff 14 24 85 c0 75 10 e8 ae f8 a3 fd eb b4 e8 a7 f8 a3 fd 31 c0 eb 09 89 c3 e8 9c f8 a3 fd 89 d8 5b 41 5c 41 5d 41 5e 41 5f c3 <f3> 0f 1e fa 41 57 41 56 41 55 41 54 53 48 89 f3 49 89 fe 49 bd 00
RSP: 0018:ffffc90005287618 EFLAGS: 00000283
RAX: ffffffff88821653 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000be69000 RSI: ffff888031307280 RDI: ffff888066c5a800
RBP: ffffc90005287730 R08: ffff8880309f5a07 R09: 1ffff1100613eb40
R10: dffffc0000000000 R11: ffffed100613eb41 R12: ffff888066c5a800
R13: 1ffff92000a50ed0 R14: ffff888031307280 R15: dffffc0000000000
 sk_filter_trim_cap+0x165/0x900 net/core/filter.c:144
 sk_filter include/linux/filter.h:888 [inline]
 unix_dgram_sendmsg+0x942/0x16d0 net/unix/af_unix.c:2035
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0x5ba/0x960 net/socket.c:2594
 ___sys_sendmsg+0x2a6/0x360 net/socket.c:2648
 __sys_sendmmsg+0x2ca/0x510 net/socket.c:2734
 __do_sys_sendmmsg net/socket.c:2763 [inline]
 __se_sys_sendmmsg net/socket.c:2760 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2760
 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: 0033:0x7f1bf579c819
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:00007f1bf6663028 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f1bf5a15fa0 RCX: 00007f1bf579c819
RDX: 0000000000000651 RSI: 0000200000000000 RDI: 0000000000000005
RBP: 00007f1bf5832c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1bf5a16038 R14: 00007f1bf5a15fa0 R15: 00007fff63f419c8
 </TASK>
----------------
Code disassembly (best guess):
   0:	ff 14 24             	call   *(%rsp)
   3:	85 c0                	test   %eax,%eax
   5:	75 10                	jne    0x17
   7:	e8 ae f8 a3 fd       	call   0xfda3f8ba
   c:	eb b4                	jmp    0xffffffc2
   e:	e8 a7 f8 a3 fd       	call   0xfda3f8ba
  13:	31 c0                	xor    %eax,%eax
  15:	eb 09                	jmp    0x20
  17:	89 c3                	mov    %eax,%ebx
  19:	e8 9c f8 a3 fd       	call   0xfda3f8ba
  1e:	89 d8                	mov    %ebx,%eax
  20:	5b                   	pop    %rbx
  21:	41 5c                	pop    %r12
  23:	41 5d                	pop    %r13
  25:	41 5e                	pop    %r14
  27:	41 5f                	pop    %r15
  29:	c3                   	ret
* 2a:	f3 0f 1e fa          	endbr64 <-- trapping instruction
  2e:	41 57                	push   %r15
  30:	41 56                	push   %r14
  32:	41 55                	push   %r13
  34:	41 54                	push   %r12
  36:	53                   	push   %rbx
  37:	48 89 f3             	mov    %rsi,%rbx
  3a:	49 89 fe             	mov    %rdi,%r14
  3d:	49                   	rex.WB
  3e:	bd                   	.byte 0xbd