BUG: kernel NULL pointer dereference, address: 0000000000000010
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 10e5a9067 P4D 10e5a9067 PUD 10ef18067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 9347 Comm: syz-executor.3 Not tainted 5.9.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sock_release+0x2f/0xa0 net/socket.c:596
Code: 8b 47 20 48 89 fb 48 85 c0 74 42 48 85 f6 4c 8b 60 08 74 5b 48 8d ae e0 00 00 00 48 89 ef e8 88 f7 7f 00 48 8b 43 20 48 89 df <ff> 50 10 48 c7 43 18 00 00 00 00 48 89 ef e8 ae 4f 9e fe 48 c7 43
RSP: 0018:ffffc90002933e88 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888111181980 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff888111181980
RBP: ffff888111181b20 R08: 0000000000000000 R09: 0000000000000001
R10: ffffc90002933e88 R11: bdf2b9bae115a1bb R12: 0000000000000000
R13: ffff88812b0d8e60 R14: ffff88810e8afd68 R15: 0000000000000000
FS:  00007ff412ee8700(0000) GS:ffff88812c100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000010 CR3: 000000010e528000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 sock_close+0xf/0x20 net/socket.c:1277
 __fput+0xaa/0x250 fs/file_table.c:281
 task_work_run+0x68/0xb0 kernel/task_work.c:141
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:139 [inline]
 exit_to_user_mode_prepare+0x1e2/0x1f0 kernel/entry/common.c:166
 syscall_exit_to_user_mode+0x59/0x2b0 kernel/entry/common.c:241
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d5b9
Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ff412ee7c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9
RDX: 0000000000000004 RSI: 0000000000000001 RDI: 0000000000000005
RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000200003c0 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007ffc8d967e3f R14: 00007ff412ee89c0 R15: 000000000118cf4c
Modules linked in:
CR2: 0000000000000010
---[ end trace 24d1e4f06d227066 ]---
RIP: 0010:__sock_release+0x2f/0xa0 net/socket.c:596
Code: 8b 47 20 48 89 fb 48 85 c0 74 42 48 85 f6 4c 8b 60 08 74 5b 48 8d ae e0 00 00 00 48 89 ef e8 88 f7 7f 00 48 8b 43 20 48 89 df <ff> 50 10 48 c7 43 18 00 00 00 00 48 89 ef e8 ae 4f 9e fe 48 c7 43
RSP: 0018:ffffc90002933e88 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888111181980 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff888111181980
RBP: ffff888111181b20 R08: 0000000000000000 R09: 0000000000000001
R10: ffffc90002933e88 R11: bdf2b9bae115a1bb R12: 0000000000000000
R13: ffff88812b0d8e60 R14: ffff88810e8afd68 R15: 0000000000000000
FS:  00007ff412ee8700(0000) GS:ffff88812c100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffebcff77e0 CR3: 000000010e528000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400