------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:28!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 15247 Comm: kworker/u8:34 Not tainted 6.17.0-rc1-syzkaller-00127-g715c7a36d59f #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: netns cleanup_net
RIP: 0010:__phys_addr+0x16b/0x180 arch/x86/mm/physaddr.c:28
Code: 8d ae 00 e9 45 ff ff ff e8 c2 24 4b 00 48 c7 c7 50 cf fa 8d 48 89 de 4c 89 f2 e8 50 a0 8a 03 e9 4d ff ff ff e8 a6 24 4b 00 90 <0f> 0b e8 9e 24 4b 00 90 0f 0b e8 96 24 4b 00 90 0f 0b 0f 1f 00 90
RSP: 0000:ffffc90000a08b58 EFLAGS: 00010246
RAX: ffffffff817486ea RBX: 00007780ffff0000 RCX: ffff888054121e00
RDX: 0000000000000100 RSI: 000000017fff0000 RDI: 00007780ffff0000
RBP: ffffc90000a08e30 R08: 0000000000000000 R09: ffffffff81a7f827
R10: dffffc0000000000 R11: ffffffff8a01d780 R12: ffffffff8a01d780
R13: ffffffff81a7f827 R14: 000000017fff0000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888125d1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f83ee61d230 CR3: 000000000df36000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 virt_to_folio include/linux/mm.h:1180 [inline]
 kfree+0x77/0x440 mm/slub.c:4871
 in_dev_free_rcu+0x49/0x60 net/ipv4/devinet.c:245
 rcu_do_batch kernel/rcu/tree.c:2605 [inline]
 rcu_core+0xcab/0x1770 kernel/rcu/tree.c:2861
 handle_softirqs+0x283/0x870 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lockdep_unregister_key+0x2c5/0x310 kernel/locking/lockdep.c:6616
Code: 65 48 8b 05 bd bf 02 11 48 3b 44 24 10 0f 84 26 fe ff ff e8 7d d6 db 09 e8 a8 d7 db 09 41 f7 c7 00 02 00 00 74 bd fb 40 84 ed <75> bc eb cd 90 0f 0b 90 e9 19 ff ff ff 90 0f 0b 90 e9 2a ff ff ff
RSP: 0000:ffffc9001a857698 EFLAGS: 00000246
RAX: da0854ab90cc2b00 RBX: ffff88802a970298 RCX: da0854ab90cc2b00
RDX: ffffffff93640338 RSI: ffffffff8d9caa65 RDI: ffffffff8be33400
RBP: ffff88802a970200 R08: 0000000000000000 R09: ffffffff81aa82b8
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: 0000000000000000
R13: 0000000000001000 R14: 0000000000000001 R15: 0000000000000a03
 __qdisc_destroy+0x166/0x420 net/sched/sch_generic.c:1083
 qdisc_put net/sched/sch_generic.c:1109 [inline]
 dev_shutdown+0x34c/0x440 net/sched/sch_generic.c:1497
 unregister_netdevice_many_notify+0xe0f/0x1ff0 net/core/dev.c:12142
 ops_exit_rtnl_list net/core/net_namespace.c:186 [inline]
 ops_undo_list+0x3dc/0x990 net/core/net_namespace.c:247
 cleanup_net+0x4c5/0x800 net/core/net_namespace.c:682
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__phys_addr+0x16b/0x180 arch/x86/mm/physaddr.c:28
Code: 8d ae 00 e9 45 ff ff ff e8 c2 24 4b 00 48 c7 c7 50 cf fa 8d 48 89 de 4c 89 f2 e8 50 a0 8a 03 e9 4d ff ff ff e8 a6 24 4b 00 90 <0f> 0b e8 9e 24 4b 00 90 0f 0b e8 96 24 4b 00 90 0f 0b 0f 1f 00 90
RSP: 0000:ffffc90000a08b58 EFLAGS: 00010246
RAX: ffffffff817486ea RBX: 00007780ffff0000 RCX: ffff888054121e00
RDX: 0000000000000100 RSI: 000000017fff0000 RDI: 00007780ffff0000
RBP: ffffc90000a08e30 R08: 0000000000000000 R09: ffffffff81a7f827
R10: dffffc0000000000 R11: ffffffff8a01d780 R12: ffffffff8a01d780
R13: ffffffff81a7f827 R14: 000000017fff0000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888125d1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f83ee61d230 CR3: 000000000df36000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	65 48 8b 05 bd bf 02 	mov    %gs:0x1102bfbd(%rip),%rax        # 0x1102bfc5
   7:	11
   8:	48 3b 44 24 10       	cmp    0x10(%rsp),%rax
   d:	0f 84 26 fe ff ff    	je     0xfffffe39
  13:	e8 7d d6 db 09       	call   0x9dbd695
  18:	e8 a8 d7 db 09       	call   0x9dbd7c5
  1d:	41 f7 c7 00 02 00 00 	test   $0x200,%r15d
  24:	74 bd                	je     0xffffffe3
  26:	fb                   	sti
  27:	40 84 ed             	test   %bpl,%bpl
* 2a:	75 bc                	jne    0xffffffe8 <-- trapping instruction
  2c:	eb cd                	jmp    0xfffffffb
  2e:	90                   	nop
  2f:	0f 0b                	ud2
  31:	90                   	nop
  32:	e9 19 ff ff ff       	jmp    0xffffff50
  37:	90                   	nop
  38:	0f 0b                	ud2
  3a:	90                   	nop
  3b:	e9 2a ff ff ff       	jmp    0xffffff6a