page:ffffea0001941200 count:0 mapcount:-128 mapping:0000000000000000 index:0x0
flags: 0x1fffc0000000000()
raw: 01fffc0000000000 ffffea000194fa08 ffff88812fffc878 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: 1 PID: 9245 Comm: syz-executor.3 Not tainted 5.0.0+ #111
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 61 c5 fb fb 4c 8d 63 ff e9 b1 fc ff ff e8 53 c5 fb fb 48 c7 c6 40 8a fc 87 4c 89 e7 e8 24 25 25 fc <0f> 0b e8 3d c5 fb fb 4d 8d 66 0e 48 b8 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffff88805e4b7708 EFLAGS: 00010293
RAX: ffff88809965e040 RBX: ffffea0001941234 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8199d492 RDI: ffffea0001941238
RBP: ffff88805e4b7770 R08: 000000000000003e R09: ffff88809965e908
R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0001941200
R13: ffff8880a84739c0 R14: 0000000000000001 R15: dffffc0000000000
FS:  00007f9ee3066700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9ee3044db8 CR3: 0000000008871000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_release_all+0x4d/0x60 net/core/skbuff.c:631
 __kfree_skb+0x16/0x30 net/core/skbuff.c:645
 tcp_write_queue_purge+0x5ec/0xa60 net/ipv4/tcp.c:2548
 tcp_disconnect+0x468/0x1910 net/ipv4/tcp.c:2592
 tcp_close+0xe37/0x10c0 net/ipv4/tcp.c:2382
 tls_sk_proto_close+0x40d/0x7a0 net/tls/tls_main.c:292
 inet_release+0x105/0x1f0 net/ipv4/af_inet.c:432
 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:2575
 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 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: 0033:0x458209
Code: Bad RIP value.
RSP: 002b:00007f9ee3065c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: 000000000000000e RBX: 0000000000000003 RCX: 0000000000458209
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000000000a
RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9ee30666d4
R13: 00000000004c65bd R14: 00000000004db8a8 R15: 00000000ffffffff
Modules linked in:
---[ end trace c777ed044a30f486 ]---
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 61 c5 fb fb 4c 8d 63 ff e9 b1 fc ff ff e8 53 c5 fb fb 48 c7 c6 40 8a fc 87 4c 89 e7 e8 24 25 25 fc <0f> 0b e8 3d c5 fb fb 4d 8d 66 0e 48 b8 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffff88805e4b7708 EFLAGS: 00010293
RAX: ffff88809965e040 RBX: ffffea0001941234 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8199d492 RDI: ffffea0001941238
RBP: ffff88805e4b7770 R08: 000000000000003e R09: ffff88809965e908
R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0001941200
R13: ffff8880a84739c0 R14: 0000000000000001 R15: dffffc0000000000
FS:  00007f9ee3066700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000173afd0 CR3: 0000000099706000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400