Oops: general protection fault, probably for non-canonical address 0xdffffc0000000019: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000000c8-0x00000000000000cf]
CPU: 1 UID: 0 PID: 11774 Comm: syz.2.4327 Not tainted syzkaller #0 99b3eabaa23ae162c27001e7be83a6c28a211609
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:fuse_file_release+0x29e/0x400 fs/fuse/file.c:388
Code: 00 74 12 48 89 df e8 c1 e5 a0 ff 48 ba 00 00 00 00 00 fc ff df 4c 89 2b 4c 8b 75 b8 49 81 c7 c8 00 00 00 4c 89 f8 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 ff e8 74 e4 a0 ff 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc9000d76f828 EFLAGS: 00010202
RAX: 0000000000000019 RBX: 0000000000000000 RCX: 0000000000080000
RDX: dffffc0000000000 RSI: 0000000000000081 RDI: 0000000000000082
RBP: ffffc9000d76f870 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52001aeded4 R12: 0000000000000000
R13: ffff88813c737a80 R14: ffff88810f3b6000 R15: 00000000000000c8
FS:  00007fac93aa46c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f885dbd6d58 CR3: 0000000131c34000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 fuse_priv_ioctl_cleanup fs/fuse/ioctl.c:510 [inline]
 fuse_fileattr_get+0x43a/0x590 fs/fuse/ioctl.c:545
 vfs_fileattr_get fs/ioctl.c:533 [inline]
 ioctl_fsgetxattr fs/ioctl.c:741 [inline]
 do_vfs_ioctl+0x89b/0x1e30 fs/ioctl.c:873
 __do_sys_ioctl fs/ioctl.c:905 [inline]
 __se_sys_ioctl+0x9f/0x1b0 fs/ioctl.c:893
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:893
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fac92b8eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fac93aa4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fac92de5fa0 RCX: 00007fac92b8eec9
RDX: 0000000000000000 RSI: 00000000801c581f RDI: 0000000000000005
RBP: 00007fac92c11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fac92de6038 R14: 00007fac92de5fa0 R15: 00007ffc62b31c78
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:fuse_file_release+0x29e/0x400 fs/fuse/file.c:388
Code: 00 74 12 48 89 df e8 c1 e5 a0 ff 48 ba 00 00 00 00 00 fc ff df 4c 89 2b 4c 8b 75 b8 49 81 c7 c8 00 00 00 4c 89 f8 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 ff e8 74 e4 a0 ff 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc9000d76f828 EFLAGS: 00010202

RAX: 0000000000000019 RBX: 0000000000000000 RCX: 0000000000080000
RDX: dffffc0000000000 RSI: 0000000000000081 RDI: 0000000000000082
RBP: ffffc9000d76f870 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52001aeded4 R12: 0000000000000000
R13: ffff88813c737a80 R14: ffff88810f3b6000 R15: 00000000000000c8
FS:  00007fac93aa46c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f885d7b1ff0 CR3: 0000000131c34000 CR4: 00000000003526b0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 74 12 48          	add    %dh,0x48(%rdx,%rdx,1)
   4:	89 df                	mov    %ebx,%edi
   6:	e8 c1 e5 a0 ff       	call   0xffa0e5cc
   b:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  12:	fc ff df
  15:	4c 89 2b             	mov    %r13,(%rbx)
  18:	4c 8b 75 b8          	mov    -0x48(%rbp),%r14
  1c:	49 81 c7 c8 00 00 00 	add    $0xc8,%r15
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 10 00          	cmpb   $0x0,(%rax,%rdx,1) <-- trapping instruction
  2e:	74 12                	je     0x42
  30:	4c 89 ff             	mov    %r15,%rdi
  33:	e8 74 e4 a0 ff       	call   0xffa0e4ac
  38:	48                   	rex.W
  39:	ba 00 00 00 00       	mov    $0x0,%edx
  3e:	00 fc                	add    %bh,%ah