------------[ cut here ]------------
sk->sk_forward_alloc
WARNING: net/ipv4/af_inet.c:162 at inet_sock_destruct+0x62d/0x740, CPU#1: modprobe/11258
Modules linked in:
CPU: 1 UID: 0 PID: 11258 Comm: modprobe Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:inet_sock_destruct+0x62d/0x740
Code: 0f 0b 90 e9 58 fe ff ff e8 60 33 a0 f7 90 0f 0b 90 e9 8b fe ff ff e8 52 33 a0 f7 90 0f 0b 90 e9 b1 fe ff ff e8 44 33 a0 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:ffffc90000a08d20 EFLAGS: 00010246
RAX: ffffffff8a25848c RBX: dffffc0000000000 RCX: ffff888172ca8000
RDX: 0000000000000100 RSI: 0000000000000f70 RDI: 0000000000000000
RBP: 0000000000000f70 R08: ffff888100b2d7a7 R09: 1ffff11020165af4
R10: dffffc0000000000 R11: ffffed1020165af5 R12: ffff888100b2d500
R13: ffff888100b2da08 R14: ffff888100b2d78c R15: ffffffff8fea7000
FS:  0000000000000000(0000) GS:ffff8882a929f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4d8b872020 CR3: 0000000174264000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 __sk_destruct+0x8d/0x9d0
 rcu_core+0x7cd/0x1070
 handle_softirqs+0x22a/0x840
 __irq_exit_rcu+0xca/0x220
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:unwind_next_frame+0x5d/0x2550
Code: 3c 28 00 74 08 48 89 df e8 80 2d ba 00 48 89 5c 24 10 49 8b 5e 48 4d 8d 66 38 4c 89 e0 48 c1 e8 03 48 89 44 24 58 80 3c 28 00 <74> 08 4c 89 e7 e8 59 2d ba 00 4d 8b 7e 38 4d 89 f5 49 c1 ed 03 41
RSP: 0018:ffffc90007d572d8 EFLAGS: 00000246
RAX: 1ffff92000faae7c RBX: ffffffff8225beb6 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff8225beb6 RDI: ffffc90007d573a8
RBP: dffffc0000000000 R08: ffffc90007d57470 R09: 0000000000000003
R10: ffffc90007d573f8 R11: ffffffff81b0e210 R12: ffffc90007d573e0
R13: ffff8881bb3d2100 R14: ffffc90007d573a8 R15: ffffc90007d573a8
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_cache_noprof+0x31c/0x660
 kmem_cache_free+0x156/0x650
 __fput_deferred+0x2a3/0x380
 fput_close+0x11f/0x240
 path_openat+0x311d/0x3860
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x113/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4d8b88fa46
Code: 10 00 00 00 44 8b 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 0c f7 d8 89 05 0a 48 01 00 48 83 c8 ff c3 31
RSP: 002b:00007ffd650f12f8 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ffd650f1558 RCX: 00007f4d8b88fa46
RDX: 0000000000080000 RSI: 00007ffd650f1370 RDI: 00000000ffffff9c
RBP: 00007ffd650f1360 R08: 0000000000080000 R09: 00007ffd650f1370
R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffd650f1370
R13: 0000000000000005 R14: 00007ffd650f153f R15: 00000000ffffffff
 </TASK>
