R13: 000000000000006e R14: 00007f50b6056120 R15: 00007fffca6f7c48
general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]
CPU: 0 PID: 4860 Comm: syz-executor.5 Not tainted 5.10.204-syzkaller-01048-gf7977422e132 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:933 [inline]
RIP: 0010:fuse_file_put+0x11b/0x2420 fs/fuse/file.c:125
Code: f0 41 0f c1 5e 28 bf 01 00 00 00 89 de e8 0d e9 6b ff 83 fb 01 0f 85 e4 00 00 00 4c 89 e9 4d 8d 6c 24 28 4c 89 e8 48 c1 e8 03 <80> 3c 08 00 74 08 4c 89 ef e8 f7 51 a9 ff 4c 8d bc 24 c0 00 00 00
RSP: 0018:ffffc9000b746f00 EFLAGS: 00010206
RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffff88816ea30000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc9000b7472a0 R08: ffffffff81fec0c3 R09: ffffed102f52a546
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000028 R14: ffff88817a952a00 R15: ffff88817a952a28
FS:  00007f50b4c776c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f50b5fc16a7 CR3: 000000010cc42000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 fuse_sync_release+0x81/0xb0 fs/fuse/file.c:393
 fuse_create_open fs/fuse/dir.c:797 [inline]
 fuse_atomic_open+0x2914/0x34e0 fs/fuse/dir.c:858
 atomic_open fs/namei.c:3120 [inline]
 lookup_open fs/namei.c:3225 [inline]
 open_last_lookups fs/namei.c:3323 [inline]
 path_openat+0xff0/0x3000 fs/namei.c:3512
 do_filp_open+0x21c/0x460 fs/namei.c:3542
 do_sys_openat2+0x13f/0x6f0 fs/open.c:1217
 do_sys_open fs/open.c:1233 [inline]
 __do_sys_openat fs/open.c:1249 [inline]
 __se_sys_openat fs/open.c:1244 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1244
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f50b5f36ce9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f50b4c770c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f50b6056120 RCX: 00007f50b5f36ce9
RDX: 0000000000080041 RSI: 00000000200001c0 RDI: ffffffffffffff9c
RBP: 00007f50b4c77120 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 000000000000006e R14: 00007f50b6056120 R15: 00007fffca6f7c48
Modules linked in:
---[ end trace 97e2efab349409f8 ]---
RIP: 0010:get_fuse_mount fs/fuse/fuse_i.h:933 [inline]
RIP: 0010:fuse_file_put+0x11b/0x2420 fs/fuse/file.c:125
Code: f0 41 0f c1 5e 28 bf 01 00 00 00 89 de e8 0d e9 6b ff 83 fb 01 0f 85 e4 00 00 00 4c 89 e9 4d 8d 6c 24 28 4c 89 e8 48 c1 e8 03 <80> 3c 08 00 74 08 4c 89 ef e8 f7 51 a9 ff 4c 8d bc 24 c0 00 00 00
RSP: 0018:ffffc9000b746f00 EFLAGS: 00010206
RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffff88816ea30000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc9000b7472a0 R08: ffffffff81fec0c3 R09: ffffed102f52a546
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000028 R14: ffff88817a952a00 R15: ffff88817a952a28
FS:  00007f50b4c776c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33724000 CR3: 000000010cc42000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	f0 41 0f c1 5e 28    	lock xadd %ebx,0x28(%r14)
   6:	bf 01 00 00 00       	mov    $0x1,%edi
   b:	89 de                	mov    %ebx,%esi
   d:	e8 0d e9 6b ff       	call   0xff6be91f
  12:	83 fb 01             	cmp    $0x1,%ebx
  15:	0f 85 e4 00 00 00    	jne    0xff
  1b:	4c 89 e9             	mov    %r13,%rcx
  1e:	4d 8d 6c 24 28       	lea    0x28(%r12),%r13
  23:	4c 89 e8             	mov    %r13,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 ef             	mov    %r13,%rdi
  33:	e8 f7 51 a9 ff       	call   0xffa9522f
  38:	4c 8d bc 24 c0 00 00 	lea    0xc0(%rsp),%r15
  3f:	00