page:ffffea0001ab0000 count:0 mapcount:-128 mapping:0000000000000000 index:0x0
flags: 0x1fffc0000000000()
raw: 01fffc0000000000 ffffea0001a24c08 ffffea0001a87808 0000000000000000
raw: 0000000000000000 0000000000000003 00000000ffffff7f 0000000000000000
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: 0 PID: 11566 Comm: syz-executor.3 Not tainted 5.1.0-rc2+ #147
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 b2 fb fb 4c 8d 63 ff e9 b1 fc ff ff e8 a3 b2 fb fb 48 c7 c6 40 89 fc 87 4c 89 e7 e8 54 12 25 fc <0f> 0b e8 8d b2 fb fb 4d 8d 66 0e 48 b8 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffff88806aa27ac0 EFLAGS: 00010293
RAX: ffff88806a5061c0 RBX: ffffea0001ab0034 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8199e1c2 RDI: ffffea0001ab0038
RBP: ffff88806aa27b28 R08: 000000000000003e R09: ffffed1015d05011
R10: ffffed1015d05010 R11: ffff8880ae828087 R12: ffffea0001ab0000
R13: ffff88808f9f1500 R14: 0000000000000001 R15: dffffc0000000000
FS:  0000000001cb0940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f573afb6330 CR3: 0000000098688000 CR4: 00000000001406f0
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
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop+0x273/0x2c0 arch/x86/entry/common.c:166
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x411fc1
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 e4 1a 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffd7c319ef0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000411fc1
RDX: 0000000000000000 RSI: 0000000000740de0 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000034081
R10: 0000000000740dd0 R11: 0000000000000293 R12: 0000000000000001
R13: 00007ffd7c319f30 R14: 0000000000000000 R15: 00007ffd7c319f40
Modules linked in:
---[ end trace d69477f26a033222 ]---
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 b2 fb fb 4c 8d 63 ff e9 b1 fc ff ff e8 a3 b2 fb fb 48 c7 c6 40 89 fc 87 4c 89 e7 e8 54 12 25 fc <0f> 0b e8 8d b2 fb fb 4d 8d 66 0e 48 b8 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffff88806aa27ac0 EFLAGS: 00010293
RAX: ffff88806a5061c0 RBX: ffffea0001ab0034 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8199e1c2 RDI: ffffea0001ab0038
RBP: ffff88806aa27b28 R08: 000000000000003e R09: ffffed1015d05011
R10: ffffed1015d05010 R11: ffff8880ae828087 R12: ffffea0001ab0000
R13: ffff88808f9f1500 R14: 0000000000000001 R15: dffffc0000000000
FS:  0000000001cb0940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f573afb6330 CR3: 0000000098688000 CR4: 00000000001406f0