------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff88805fc86490 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350
WARNING: CPU: 1 PID: 16031 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline]
WARNING: CPU: 1 PID: 16031 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:990 [inline]
WARNING: CPU: 1 PID: 16031 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x446/0x540 lib/debugobjects.c:1020
Modules linked in:
CPU: 1 PID: 16031 Comm: syz.0.1819 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: d1dff49d51356900 RBX: ffffffff971571b0 RCX: ffff8880226e5a00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffffff8aac9f00 R08: ffffffff90da85e7 R09: 1ffffffff21b50bc
R10: dffffc0000000000 R11: fffffbfff21b50bd R12: ffff88805fc86600
R13: ffffffff89678f70 R14: ffff88805fc86000 R15: ffff88805fc86490
FS: 00007f0a2d6826c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e51aff8 CR3: 000000007e036000 CR4: 00000000003526e0
Call Trace:
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
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:console_flush_all+0x889/0xd00 arch/x86/include/asm/irqflags.h:-1
Code: ed 01 00 00 e8 e8 31 1b 00 4d 85 ff 48 8b 5c 24 38 75 07 e8 d9 31 1b 00 eb 06 e8 d2 31 1b 00 fb 49 bf 00 00 00 00 00 fc ff df <48> 8b 44 24 50 42 0f b6 04 38 84 c0 0f 85 2f 02 00 00 80 3b 01 0f
RSP: 0018:ffffc900036c6480 EFLAGS: 00000283
RAX: ffffffff816a5dbe RBX: ffffc900036c661f RCX: 0000000000080000
RDX: ffffc900131bd000 RSI: 00000000000045c1 RDI: 00000000000045c2
RBP: ffffc900036c65f0 R08: ffffffff90da8507 R09: 1ffffffff21b50a0
R10: dffffc0000000000 R11: fffffbfff21b50a1 R12: ffffffff8d4b4c40
R13: 1ffffffff19792f0 R14: ffffffff8d4b4c98 R15: dffffc0000000000
console_unlock+0xae/0x340 kernel/printk/printk.c:3069
vprintk_emit+0x477/0x600 kernel/printk/printk.c:2341
_printk+0xd0/0x110 kernel/printk/printk.c:2366
__nla_validate_parse+0x272f/0x2fa0 lib/nlattr.c:647
__nla_parse+0x40/0x50 lib/nlattr.c:732
nla_parse_nested_deprecated include/net/netlink.h:1288 [inline]
nft_get_set_elem net/netfilter/nf_tables_api.c:6117 [inline]
nf_tables_getsetelem+0xa24/0x1640 net/netfilter/nf_tables_api.c:6217
nfnetlink_rcv_msg+0x805/0x1130 net/netfilter/nfnetlink.c:290
netlink_rcv_skb+0x216/0x480 net/netlink/af_netlink.c:2545
nfnetlink_rcv+0x274/0x2180 net/netfilter/nfnetlink.c:659
netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
netlink_unicast+0x751/0x8d0 net/netlink/af_netlink.c:1346
netlink_sendmsg+0x8c1/0xbe0 net/netlink/af_netlink.c:1894
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
____sys_sendmsg+0x5bf/0x950 net/socket.c:2595
___sys_sendmsg+0x220/0x290 net/socket.c:2649
__sys_sendmsg net/socket.c:2678 [inline]
__do_sys_sendmsg net/socket.c:2687 [inline]
__se_sys_sendmsg+0x1a5/0x270 net/socket.c:2685
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: 0033:0x7f0a2c78f6c9
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:00007f0a2d682038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f0a2c9e6180 RCX: 00007f0a2c78f6c9
RDX: 0000000000008000 RSI: 0000200000000100 RDI: 0000000000000009
RBP: 00007f0a2c811f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0a2c9e6218 R14: 00007f0a2c9e6180 R15: 00007fff70186ab8
----------------
Code disassembly (best guess):
0: ed in (%dx),%eax
1: 01 00 add %eax,(%rax)
3: 00 e8 add %ch,%al
5: e8 31 1b 00 4d call 0x4d001b3b
a: 85 ff test %edi,%edi
c: 48 8b 5c 24 38 mov 0x38(%rsp),%rbx
11: 75 07 jne 0x1a
13: e8 d9 31 1b 00 call 0x1b31f1
18: eb 06 jmp 0x20
1a: e8 d2 31 1b 00 call 0x1b31f1
1f: fb sti
20: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15
27: fc ff df
* 2a: 48 8b 44 24 50 mov 0x50(%rsp),%rax <-- trapping instruction
2f: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax
34: 84 c0 test %al,%al
36: 0f 85 2f 02 00 00 jne 0x26b
3c: 80 3b 01 cmpb $0x1,(%rbx)
3f: 0f .byte 0xf