list_del corruption, ffff88805bc32490->next is NULL
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:53!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6936 Comm: syz-executor Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__list_del_entry_valid_or_report+0xdf/0x190 lib/list_debug.c:52
Code: 49 39 1f 0f 85 9e 00 00 00 b0 01 5b 41 5c 41 5d 41 5e 41 5f e9 52 5c f8 06 cc 48 c7 c7 a0 e8 27 8c 48 89 de e8 12 51 6e fc 90 <0f> 0b 48 c7 c7 00 e9 27 8c 48 89 de e8 00 51 6e fc 90 0f 0b 4c 89
RSP: 0018:ffffc90000007d58 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff88805bc32490 RCX: d3a37efe01057e00
RDX: 0000000000000100 RSI: 0000000080000102 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc90000007ae7 R09: 1ffff92000000f5c
R10: dffffc0000000000 R11: fffff52000000f5d R12: 1ffff1100b786492
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 000055556d38b500(0000) GS:ffff888125457000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fce86af9f16 CR3: 00000000767a2000 CR4: 00000000003526f0
Call Trace:
__list_del_entry_valid include/linux/list.h:132 [inline]
__list_del_entry include/linux/list.h:223 [inline]
list_del_init include/linux/list.h:295 [inline]
dst_destroy+0x202/0x5a0 net/core/dst.c:163
rcu_do_batch kernel/rcu/tree.c:2617 [inline]
rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869
handle_softirqs+0x22a/0x870 kernel/softirq.c:626
__do_softirq kernel/softirq.c:660 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0x5f/0x150 kernel/softirq.c:727
irq_exit_rcu+0x9/0x30 kernel/softirq.c:743
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:188 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 7a 41 f0 f5 48 89 df e8 b2 b6 f0 f5 e8 9d 0d 1c f6 fb bf 01 00 00 00 e2 68 e2 f5 65 8b 05 fb 10 6b 07 85 c0 74 07 5b c3 cc cc cc cc
RSP: 0018:ffffc90003f26e90 EFLAGS: 00000202
RAX: 00000000000067e5 RBX: ffffffff9a5ca2a0 RCX: 0000000080000001
RDX: 0000000000000006 RSI: ffffffff8defcb55 RDI: 0000000000000001
RBP: ffffc90003f27058 R08: ffffffff9011e8b7 R09: 1ffffffff2023d16
R10: dffffc0000000000 R11: fffffbfff2023d17 R12: dffffc0000000000
R13: 1ffff920007e4dd4 R14: ffff8880598162f0 R15: 0000000000000000
spin_unlock_irq include/linux/spinlock.h:401 [inline]
xa_store_irq include/linux/xarray.h:624 [inline]
ref_tracker_dir_debugfs+0x264/0x360 lib/ref_tracker.c:446
ref_tracker_dir_init include/linux/ref_tracker.h:70 [inline]
alloc_netdev_mqs+0x2b9/0x1200 net/core/dev.c:12052
rtnl_create_link+0x31f/0xd70 net/core/rtnetlink.c:3648
rtnl_newlink_create+0x277/0xb70 net/core/rtnetlink.c:3830
__rtnl_newlink net/core/rtnetlink.c:3957 [inline]
rtnl_newlink+0x1666/0x1be0 net/core/rtnetlink.c:4072
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:6958
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2550
netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894
sock_sendmsg_nosec+0x18f/0x1d0 net/socket.c:802
__sock_sendmsg net/socket.c:817 [inline]
__sys_sendto+0x3ff/0x590 net/socket.c:2286
__do_sys_sendto net/socket.c:2293 [inline]
__se_sys_sendto net/socket.c:2289 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2289
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f903515cfce
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffc262b3128 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 000055556d38b500 RCX: 00007f903515cfce
RDX: 000000000000004c RSI: 00007f9035f44670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffc262b31a4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f9035f44670 R15: 0000000000000000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0xdf/0x190 lib/list_debug.c:52
Code: 49 39 1f 0f 85 9e 00 00 00 b0 01 5b 41 5c 41 5d 41 5e 41 5f e9 52 5c f8 06 cc 48 c7 c7 a0 e8 27 8c 48 89 de e8 12 51 6e fc 90 <0f> 0b 48 c7 c7 00 e9 27 8c 48 89 de e8 00 51 6e fc 90 0f 0b 4c 89
RSP: 0018:ffffc90000007d58 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff88805bc32490 RCX: d3a37efe01057e00
RDX: 0000000000000100 RSI: 0000000080000102 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc90000007ae7 R09: 1ffff92000000f5c
R10: dffffc0000000000 R11: fffff52000000f5d R12: 1ffff1100b786492
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 000055556d38b500(0000) GS:ffff888125457000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fce86af9f16 CR3: 00000000767a2000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
0: 90 nop
1: f3 0f 1e fa endbr64
5: 53 push %rbx
6: 48 89 fb mov %rdi,%rbx
9: 48 83 c7 18 add $0x18,%rdi
d: 48 8b 74 24 08 mov 0x8(%rsp),%rsi
12: e8 7a 41 f0 f5 call 0xf5f04191
17: 48 89 df mov %rbx,%rdi
1a: e8 b2 b6 f0 f5 call 0xf5f0b6d1
1f: e8 9d 0d 1c f6 call 0xf61c0dc1
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 e2 68 e2 f5 call 0xf5e26911 <-- trapping instruction
2f: 65 8b 05 fb 10 6b 07 mov %gs:0x76b10fb(%rip),%eax # 0x76b1131
36: 85 c0 test %eax,%eax
38: 74 07 je 0x41
3a: 5b pop %rbx
3b: c3 ret
3c: cc int3
3d: cc int3
3e: cc int3
3f: cc int3