Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 8454 Comm: syz.9.337 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:fuse_dev_release+0x19c/0x670
Code: 5c 24 28 48 8b 44 24 30 42 80 3c 38 00 74 08 48 89 df e8 97 4b ec fe 48 8b 0b 48 89 4c 24 18 4e 8d 24 31 4d 89 e5 49 c1 ed 03 <43> 80 7c 3d 00 00 74 08 4c 89 e7 e8 74 4b ec fe 4d 8b 3c 24 4d 39
RSP: 0018:ffffc900089cfca0 EFLAGS: 00010246
RAX: 1ffff1102ec91353 RBX: ffff888176489a98 RCX: 0000000000000000
RDX: ffffc90027027000 RSI: 0000000000000031 RDI: 0000000000000032
RBP: ffffc900089cfd80 R08: ffffffff8b2ad9d0 R09: ffffffff8dfc8240
R10: dffffc0000000000 R11: fffffbfff1f1597f R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007fa79812e6c0(0000) GS:ffff8882a9f1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3250dff8 CR3: 0000000111adc000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __fput+0x461/0xa70
 fput_close_sync+0x11f/0x240
 __x64_sys_close+0x7e/0x110
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa799edcdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa79812e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007fa79a155fa0 RCX: 00007fa799edcdd9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007fa799f72d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa79a156038 R14: 00007fa79a155fa0 R15: 00007ffe5294aca8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:fuse_dev_release+0x19c/0x670
Code: 5c 24 28 48 8b 44 24 30 42 80 3c 38 00 74 08 48 89 df e8 97 4b ec fe 48 8b 0b 48 89 4c 24 18 4e 8d 24 31 4d 89 e5 49 c1 ed 03 <43> 80 7c 3d 00 00 74 08 4c 89 e7 e8 74 4b ec fe 4d 8b 3c 24 4d 39
RSP: 0018:ffffc900089cfca0 EFLAGS: 00010246
RAX: 1ffff1102ec91353 RBX: ffff888176489a98 RCX: 0000000000000000
RDX: ffffc90027027000 RSI: 0000000000000031 RDI: 0000000000000032
RBP: ffffc900089cfd80 R08: ffffffff8b2ad9d0 R09: ffffffff8dfc8240
R10: dffffc0000000000 R11: fffffbfff1f1597f R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007fa79812e6c0(0000) GS:ffff8882a9f1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3250dff8 CR3: 0000000111adc000 CR4: 00000000000006f0
