------------[ 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#0: dhcpcd-run-hook/28743
Modules linked in:
CPU: 0 UID: 0 PID: 28743 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:inet_sock_destruct+0x62d/0x740 net/ipv4/af_inet.c:157
Code: 0f 0b 90 e9 58 fe ff ff e8 40 d3 b2 f7 90 0f 0b 90 e9 8b fe ff ff e8 32 d3 b2 f7 90 0f 0b 90 e9 b1 fe ff ff e8 24 d3 b2 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: 0018:ffffc90000007d28 EFLAGS: 00010246
RAX: ffffffff8a11842c RBX: dffffc0000000000 RCX: ffff88803039bd00
RDX: 0000000000000100 RSI: 0000000000000f70 RDI: 0000000000000000
RBP: 0000000000000f70 R08: ffff888033b782a7 R09: 1ffff1100676f054
R10: dffffc0000000000 R11: ffffed100676f055 R12: ffff888033b78000
R13: dffffc0000000000 R14: ffff888033b7828c R15: ffffffff8fa890c0
FS:  0000000000000000(0000) GS:ffff8881256ea000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff4a8ff8000 CR3: 0000000030826000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __sk_destruct+0x85/0x880 net/core/sock.c:2350
 rcu_do_batch kernel/rcu/tree.c:2605 [inline]
 rcu_core+0xc9e/0x1750 kernel/rcu/tree.c:2857
 handle_softirqs+0x22a/0x7c0 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:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x17/0x70 kernel/kcov.c:217
Code: cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0d a8 08 2f 11 65 8b 15 c9 08 2f 11 <81> e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 6c 16 00 00
RSP: 0018:ffffc9000b65f278 EFLAGS: 00000287
RAX: ffffffff8b90ea81 RBX: 000000000000000d RCX: ffff88803039bd00
RDX: 0000000080000000 RSI: 00007ff4a8f44fff RDI: 00007ff4a8f27fff
RBP: ffffc9000b65f470 R08: ffff88803039bd00 R09: 0000000000000004
R10: 0000000000000003 R11: 0000000000000000 R12: ffff88805448ec70
R13: 00007ff4a8f27fff R14: 00007ff4a8f44fff R15: 0000000000000001
 mas_validate_limits lib/maple_tree.c:7070 [inline]
 mt_validate+0xcc1/0x4320 lib/maple_tree.c:7173
 validate_mm+0xd4/0x4c0 mm/vma.c:649
 vms_complete_munmap_vmas+0x6a9/0x890 mm/vma.c:1339
 __mmap_complete+0x7b/0x610 mm/vma.c:2581
 __mmap_region mm/vma.c:2761 [inline]
 mmap_region+0x141b/0x1f40 mm/vma.c:2830
 do_mmap+0xc39/0x10c0 mm/mmap.c:558
 vm_mmap_pgoff+0x2c9/0x4f0 mm/util.c:581
 ksys_mmap_pgoff+0x51e/0x760 mm/mmap.c:604
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff4a9023242
Code: 08 00 04 00 00 eb e2 90 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 33 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5e 5b 5d c3 0f 1f 00 c7 05 46 40 01 00 16 00
RSP: 002b:00007fffbfbe79f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007ff4a8d53000 RCX: 00007ff4a9023242
RDX: 0000000000000003 RSI: 0000000000002000 RDI: 00007ff4a8d53000
RBP: 0000000000000812 R08: 0000000000000003 R09: 000000000000e000
R10: 0000000000000812 R11: 0000000000000206 R12: 00007fffbfbe7ab8
R13: 00007ff4a8ff7b20 R14: 00007fffbfbe7e30 R15: 00000ffff7f7cf42
 </TASK>
----------------
Code disassembly (best guess):
   0:	cc                   	int3
   1:	cc                   	int3
   2:	cc                   	int3
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	f3 0f 1e fa          	endbr64
  17:	48 8b 04 24          	mov    (%rsp),%rax
  1b:	65 48 8b 0d a8 08 2f 	mov    %gs:0x112f08a8(%rip),%rcx        # 0x112f08cb
  22:	11
  23:	65 8b 15 c9 08 2f 11 	mov    %gs:0x112f08c9(%rip),%edx        # 0x112f08f3
* 2a:	81 e2 00 01 ff 00    	and    $0xff0100,%edx <-- trapping instruction
  30:	74 11                	je     0x43
  32:	81 fa 00 01 00 00    	cmp    $0x100,%edx
  38:	75 35                	jne    0x6f
  3a:	83                   	.byte 0x83
  3b:	b9 6c 16 00 00       	mov    $0x166c,%ecx