------------[ cut here ]------------
sk->sk_forward_alloc
WARNING: net/ipv4/af_inet.c:157 at inet_sock_destruct+0x62d/0x740 net/ipv4/af_inet.c:157, CPU#1: syz-executor/30238
Modules linked in:
CPU: 1 UID: 0 PID: 30238 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:inet_sock_destruct+0x62d/0x740 net/ipv4/af_inet.c:157
Code: 0f 0b 90 e9 58 fe ff ff e8 90 43 a1 f7 90 0f 0b 90 e9 8b fe ff ff e8 82 43 a1 f7 90 0f 0b 90 e9 b1 fe ff ff e8 74 43 a1 f7 90 <0f> 0b 90 e9 d7 fe ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 95 fc
RSP: 0000:ffffc90000a08d48 EFLAGS: 00010246
RAX: ffffffff8a24491c RBX: dffffc0000000000 RCX: ffff888076e99e40
RDX: 0000000000000100 RSI: 00000000000002c0 RDI: 0000000000000000
RBP: 00000000000002c0 R08: ffff88801bf99c27 R09: 1ffff110037f3384
R10: dffffc0000000000 R11: ffffed10037f3385 R12: ffff88801bf99980
R13: dffffc0000000000 R14: ffff88801bf99c0c R15: ffffffff8fca8940
FS:  0000555574064500(0000) GS:ffff888125566000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdf64961c00 CR3: 0000000098318000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __sk_destruct+0x85/0x880 net/core/sock.c:2350
 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:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x20b/0x2e0 kernel/locking/lockdep.c:5872
Code: e9 30 ff ff ff e8 65 95 0b 0a f7 c3 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 e1 22 7a 11 48 3b 44 24 30 75 33 fb 48 83 c4 38 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 c6 7b 0e 0a cc 48 8d 3d 9e 48 73
RSP: 0000:ffffc90003bdf7e0 EFLAGS: 00000292
RAX: f56ba5fa54104600 RBX: 0000000000000246 RCX: 0000000080000002
RDX: 000000001015c955 RSI: ffffffff8e161d7f RDI: ffffffff8c27a480
RBP: 0000000000000000 R08: ffffffff823c057a R09: ffffffff8e7603a0
R10: dffffc0000000000 R11: fffff940003b3419 R12: 0000000000000002
R13: ffffffff8e7603a0 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 rcu_read_lock_sched include/linux/rcupdate.h:948 [inline]
 pfn_valid+0xd6/0x480 include/linux/mmzone.h:2197
 page_table_check_set+0x25/0x610 mm/page_table_check.c:105
 page_table_check_ptes_set include/linux/page_table_check.h:83 [inline]
 set_ptes include/linux/pgtable.h:413 [inline]
 set_pte_range+0x84b/0x8a0 mm/memory.c:5526
 filemap_map_order0_folio mm/filemap.c:3856 [inline]
 filemap_map_pages+0xff2/0x2050 mm/filemap.c:3921
 do_fault_around mm/memory.c:5756 [inline]
 do_read_fault mm/memory.c:5789 [inline]
 do_fault mm/memory.c:5932 [inline]
 do_pte_missing+0x211a/0x3750 mm/memory.c:4477
 handle_pte_fault mm/memory.c:6316 [inline]
 __handle_mm_fault mm/memory.c:6454 [inline]
 handle_mm_fault+0x1bec/0x3310 mm/memory.c:6623
 do_user_addr_fault+0xa73/0x1340 arch/x86/mm/fault.c:1334
 handle_page_fault arch/x86/mm/fault.c:1474 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7fdf64961c00
Code: Unable to access opcode bytes at 0x7fdf64961bd6.
RSP: 002b:00007fff121bf548 EFLAGS: 00010206
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fdf6493dce7
RDX: 0000000000000000 RSI: 00007fdf64a52ae0 RDI: 00007fdf65748060
RBP: 00007fff121bf6ac R08: 00007fdf65748060 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 00000000000f374a R15: 00007fff121bf700
 </TASK>
----------------
Code disassembly (best guess):
   0:	e9 30 ff ff ff       	jmp    0xffffff35
   5:	e8 65 95 0b 0a       	call   0xa0b956f
   a:	f7 c3 00 02 00 00    	test   $0x200,%ebx
  10:	0f 84 38 ff ff ff    	je     0xffffff4e
  16:	65 48 8b 05 e1 22 7a 	mov    %gs:0x117a22e1(%rip),%rax        # 0x117a22ff
  1d:	11
  1e:	48 3b 44 24 30       	cmp    0x30(%rsp),%rax
  23:	75 33                	jne    0x58
  25:	fb                   	sti
  26:	48 83 c4 38          	add    $0x38,%rsp
* 2a:	5b                   	pop    %rbx <-- trapping instruction
  2b:	41 5c                	pop    %r12
  2d:	41 5d                	pop    %r13
  2f:	41 5e                	pop    %r14
  31:	41 5f                	pop    %r15
  33:	5d                   	pop    %rbp
  34:	e9 c6 7b 0e 0a       	jmp    0xa0e7bff
  39:	cc                   	int3
  3a:	48                   	rex.W
  3b:	8d                   	.byte 0x8d
  3c:	3d                   	.byte 0x3d
  3d:	9e                   	sahf
  3e:	48                   	rex.W
  3f:	73                   	.byte 0x73