raw: 0000000000000000 0000000000000000 00000001fffffdff ffff888067438640
page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:547!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 32586 Comm: syz-executor.5 Not tainted 5.1.0-rc4+ #59
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:put_page_testzero include/linux/mm.h:547 [inline]
RIP: 0010:put_page include/linux/mm.h:993 [inline]
RIP: 0010:__skb_frag_unref include/linux/skbuff.h:2891 [inline]
RIP: 0010:skb_release_data+0x5ac/0x7a0 net/core/skbuff.c:571
Code: 41 5d 41 5e 41 5f 5d c3 e8 b1 08 fb fb 4c 8d 63 ff e9 b1 fc ff ff e8 a3 08 fb fb 48 c7 c6 80 a9 fb 87 4c 89 e7 e8 34 6e 24 fc <0f> 0b e8 8d 08 fb fb 4d 8d 66 0e 48 b8 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffff888067247710 EFLAGS: 00010293
RAX: ffff888093f2e180 RBX: ffffea00018f3234 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff819a0522 RDI: ffffea00018f3238
RBP: ffff888067247778 R08: 000000000000003e R09: ffffed1015d05011
R10: ffffed1015d05010 R11: ffff8880ae828087 R12: ffffea00018f3200
R13: ffff888061bca7b0 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f457bbc6700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2de21000 CR3: 000000009b26f000 CR4: 00000000001426e0
Call Trace:
 skb_release_all+0x4d/0x60 net/core/skbuff.c:631
 __kfree_skb+0x16/0x30 net/core/skbuff.c:645
 sk_wmem_free_skb include/net/sock.h:1469 [inline]
 tcp_write_queue_purge+0x253/0x7d0 net/ipv4/tcp.c:2552
 tcp_disconnect+0x402/0x1890 net/ipv4/tcp.c:2592
 tcp_close+0xe37/0x10c0 net/ipv4/tcp.c:2393
 tls_sk_proto_close+0x40d/0x7a0 net/tls/tls_main.c:292
 inet_release+0x105/0x1f0 net/ipv4/af_inet.c:428
 inet6_release+0x53/0x80 net/ipv6/af_inet6.c:473
 __sock_release+0xd3/0x2b0 net/socket.c:599
 sock_close+0x1b/0x30 net/socket.c:1247
 __fput+0x2e5/0x8d0 fs/file_table.c:278
 ____fput+0x16/0x20 fs/file_table.c:309
 task_work_run+0x14a/0x1c0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x90a/0x2fa0 kernel/exit.c:876
 do_group_exit+0x135/0x370 kernel/exit.c:980
 get_signal+0x399/0x1d50 kernel/signal.c:2577
 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162
 prepare_exit_to_usermode+0x279/0x2e0 arch/x86/entry/common.c:197
 retint_user+0x8/0x18
RIP: 0033:0x4047e4
Code: 00 00 12 00 0e 00 80 66 41 00 00 00 00 00 07 00 00 00 00 00 00 00 a9 10 00 00 12 00 0e 00 80 01 42 00 00 00 00 00 3c 00 00 00 <00> 00 00 00 d2 12 00 00 11 00 1b 00 40 d8 65 00 00 00 00 00 04 00
RSP: 002b:00007f457bbc5c90 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: 000000000015c785 RBX: ffffffffffffffff RCX: 000000000017ae80
RDX: 000000000000033f RSI: 0000000000000000 RDI: 0000000000000001
RBP: 000000000073bf00 R08: 0000000000000355 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 000000000000020c
R13: 00000000004c6034 R14: 00000000004da988 R15: 00000000ffffffff
Modules linked in:
---[ end trace 133ae1ffe6714422 ]---
RIP: 0010:put_page_testzero include/linux/mm.h:547 [inline]
RIP: 0010:put_page include/linux/mm.h:993 [inline]
RIP: 0010:__skb_frag_unref include/linux/skbuff.h:2891 [inline]
RIP: 0010:skb_release_data+0x5ac/0x7a0 net/core/skbuff.c:571
Code: 41 5d 41 5e 41 5f 5d c3 e8 b1 08 fb fb 4c 8d 63 ff e9 b1 fc ff ff e8 a3 08 fb fb 48 c7 c6 80 a9 fb 87 4c 89 e7 e8 34 6e 24 fc <0f> 0b e8 8d 08 fb fb 4d 8d 66 0e 48 b8 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffff888067247710 EFLAGS: 00010293
RAX: ffff888093f2e180 RBX: ffffea00018f3234 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff819a0522 RDI: ffffea00018f3238
RBP: ffff888067247778 R08: 000000000000003e R09: ffffed1015d05011
R10: ffffed1015d05010 R11: ffff8880ae828087 R12: ffffea00018f3200
R13: ffff888061bca7b0 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f457bbc6700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000013cce80 CR3: 0000000069d38000 CR4: 00000000001406f0