------------[ cut here ]------------
sk->sk_forward_alloc
WARNING: net/ipv4/af_inet.c:162 at inet_sock_destruct+0x62d/0x740 net/ipv4/af_inet.c:162, CPU#0: syz-executor/17250
Modules linked in:
CPU: 0 UID: 0 PID: 17250 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:162
Code: 0f 0b 90 e9 58 fe ff ff e8 c0 5c 9f f7 90 0f 0b 90 e9 8b fe ff ff e8 b2 5c 9f f7 90 0f 0b 90 e9 b1 fe ff ff e8 a4 5c 9f 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:ffffc90000007d48 EFLAGS: 00010246
RAX: ffffffff8a26445c RBX: dffffc0000000000 RCX: ffff888030393d00
RDX: 0000000000000100 RSI: 0000000000000090 RDI: 0000000000000000
RBP: 0000000000000090 R08: ffff88806f031c27 R09: 1ffff1100de06384
R10: dffffc0000000000 R11: ffffed100de06385 R12: ffff88806f031980
R13: dffffc0000000000 R14: ffff88806f031c0c R15: ffffffff8fca5580
FS:  0000555583aa1500(0000) GS:ffff888125461000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f03391e92f8 CR3: 000000007e468000 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 75 06 0e 0a f7 c3 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 f1 63 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 56 ec 10 0a cc 48 8d 3d ee 11 73
RSP: 0000:ffffc9000599fc20 EFLAGS: 00000292
RAX: 1a5e999adc0aba00 RBX: 0000000000000246 RCX: 0000000000000046
RDX: 0000000050e548cd RSI: ffffffff8e195add RDI: ffffffff8c27c180
RBP: 0000000000000001 R08: ffffffff82138661 R09: ffff888061121a88
R10: dffffc0000000000 R11: fffff52000b33f98 R12: 0000000000000001
R13: ffff888061121a88 R14: 0000000000000000 R15: 0000000000000001
 vma_start_read+0x2c8/0x570 mm/mmap_lock.c:246
 lock_vma_under_rcu+0x1d1/0x500 mm/mmap_lock.c:310
 do_user_addr_fault+0x2d8/0x1340 arch/x86/mm/fault.c:1325
 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: 0033:0x7f0338e558c7
Code: 00 e8 cd 59 ff ff 85 c0 74 54 49 8b 34 24 8b 54 24 0c 31 c0 48 8d 3d 9c d3 1d 00 e8 13 b9 ff ff 8b 44 24 6c 8b 74 24 08 89 ef <49> 89 9c 24 b8 00 00 00 49 8d 4c 24 60 ba 40 00 00 00 41 89 84 24
RSP: 002b:00007fff9bebc2e0 EFLAGS: 00010206
RAX: 0000000000000003 RBX: 00007fff9bebc360 RCX: 0000000000000002
RDX: 000000000000000a RSI: 0000000000000029 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007fff9bebc2fc R09: 0000000000000000
R10: 00007fff9bebc360 R11: 0000000000000212 R12: 00007f03391e9240
R13: 00007fff9bebc2fc R14: 0000000000000000 R15: 00007f03391e9fc0
 </TASK>
----------------
Code disassembly (best guess):
   0:	e9 30 ff ff ff       	jmp    0xffffff35
   5:	e8 75 06 0e 0a       	call   0xa0e067f
   a:	f7 c3 00 02 00 00    	test   $0x200,%ebx
  10:	0f 84 38 ff ff ff    	je     0xffffff4e
  16:	65 48 8b 05 f1 63 7a 	mov    %gs:0x117a63f1(%rip),%rax        # 0x117a640f
  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 56 ec 10 0a       	jmp    0xa10ec8f
  39:	cc                   	int3
  3a:	48                   	rex.W
  3b:	8d                   	.byte 0x8d
  3c:	3d                   	.byte 0x3d
  3d:	ee                   	out    %al,(%dx)
  3e:	11                   	.byte 0x11
  3f:	73                   	.byte 0x73