kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
CPU: 1 PID: 17433 Comm: syz-executor0 Not tainted 4.18.0-rc2+ #44
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__hlist_del include/linux/list.h:649 [inline]
RIP: 0010:hlist_del_rcu include/linux/rculist.h:440 [inline]
RIP: 0010:bpf_tcp_close+0x7da/0xfa0 kernel/bpf/sockmap.c:271
Code: 48 c1 e9 03 80 3c 19 00 0f 85 b5 05 00 00 49 8b 4f 18 48 8b 85 98 fe ff ff 48 89 ce c6 00 00 48 c1 ee 03 48 89 95 d8 fe ff ff <80> 3c 1e 00 0f 85 d2 05 00 00 48 8b 85 98 fe ff ff 48 85 d2 48 89 
RSP: 0018:ffff8801969df988 EFLAGS: 00010a02
RAX: ffffed0032d3bf40 RBX: dffffc0000000000 RCX: dead000000000200
RDX: 0000000000000000 RSI: 1bd5a00000000040 RDI: ffff8801d6fe8f90
RBP: ffff8801969dfb28 R08: ffffed0036f0464d R09: ffffed0036f0464c
R10: ffffed0036f0464c R11: ffff8801b7823263 R12: ffff8801afc1ad00
R13: ffff8801d8c9f420 R14: ffff8801afc1ad18 R15: ffff8801d6fe8f80
FS:  00007f85f7193700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f221000 CR3: 00000001b3cb5000 CR4: 00000000001406e0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 inet_release+0x104/0x1f0 net/ipv4/af_inet.c:427
 inet6_release+0x50/0x70 net/ipv6/af_inet6.c:459
 __sock_release+0xd7/0x260 net/socket.c:603
 sock_close+0x19/0x20 net/socket.c:1186
 __fput+0x35b/0x8b0 fs/file_table.c:209
 ____fput+0x15/0x20 fs/file_table.c:243
 task_work_run+0x1ec/0x2a0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:192 [inline]
 exit_to_usermode_loop+0x313/0x370 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+0x6be/0x820 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455ab9
Code: 1d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007f85f7192c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007f85f71936d4 RCX: 0000000000455ab9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004eaab2 R14: 00000000004c8820 R15: 0000000000000000
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace 6837f715bc87459c ]---
RIP: 0010:__hlist_del include/linux/list.h:649 [inline]
RIP: 0010:hlist_del_rcu include/linux/rculist.h:440 [inline]
RIP: 0010:bpf_tcp_close+0x7da/0xfa0 kernel/bpf/sockmap.c:271
Code: 48 c1 e9 03 80 3c 19 00 0f 85 b5 05 00 00 49 8b 4f 18 48 8b 85 98 fe ff ff 48 89 ce c6 00 00 48 c1 ee 03 48 89 95 d8 fe ff ff <80> 3c 1e 00 0f 85 d2 05 00 00 48 8b 85 98 fe ff ff 48 85 d2 48 89 
RSP: 0018:ffff8801969df988 EFLAGS: 00010a02
RAX: ffffed0032d3bf40 RBX: dffffc0000000000 RCX: dead000000000200
RDX: 0000000000000000 RSI: 1bd5a00000000040 RDI: ffff8801d6fe8f90
RBP: ffff8801969dfb28 R08: ffffed0036f0464d R09: ffffed0036f0464c
R10: ffffed0036f0464c R11: ffff8801b7823263 R12: ffff8801afc1ad00
R13: ffff8801d8c9f420 R14: ffff8801afc1ad18 R15: ffff8801d6fe8f80
FS:  00007f85f7193700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f221000 CR3: 00000001b3cb5000 CR4: 00000000001406e0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600