Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 10411 Comm: syz.0.1635 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:create_empty_buffers+0x48/0x530 fs/buffer.c:1694
Code: 00 00 00 00 fc ff df e8 36 71 74 ff 48 89 df 4c 89 e6 ba 40 8c 40 00 e8 16 c5 ff ff 49 89 c4 48 89 04 24 4c 89 e0 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 e7 e8 59 4c db ff 4d 09 3c 24 49 83 c4
RSP: 0018:ffffc9000c8a7868 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffea0001609980 RCX: ffff888077b68000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000c8a79f8 R08: ffffea0001609987 R09: 1ffffd40002c1330
R10: dffffc0000000000 R11: fffff940002c1331 R12: 0000000000000000
R13: ffffea0001609988 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f15c3fff6c0(0000) GS:ffff8881259bd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f15c3ffef98 CR3: 0000000078c10000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 block_read_full_folio+0x116/0x830 fs/buffer.c:2403
 filemap_read_folio+0x117/0x380 mm/filemap.c:2496
 do_read_cache_folio+0x358/0x590 mm/filemap.c:4096
 do_read_cache_page mm/filemap.c:4162 [inline]
 read_cache_page_gfp+0x2a/0x130 mm/filemap.c:4195
 btrfs_read_disk_super+0x206/0x560 fs/btrfs/volumes.c:1367
 btrfs_scan_one_device+0xd1/0x680 fs/btrfs/volumes.c:1475
 btrfs_get_tree_super fs/btrfs/super.c:1858 [inline]
 btrfs_get_tree_subvol fs/btrfs/super.c:2087 [inline]
 btrfs_get_tree+0x4ab/0x1930 fs/btrfs/super.c:2121
 vfs_get_tree+0x92/0x2a0 fs/super.c:1751
 fc_mount fs/namespace.c:1193 [inline]
 do_new_mount_fc fs/namespace.c:3630 [inline]
 do_new_mount+0x302/0xa10 fs/namespace.c:3706
 do_mount fs/namespace.c:4029 [inline]
 __do_sys_mount fs/namespace.c:4218 [inline]
 __se_sys_mount+0x313/0x410 fs/namespace.c:4195
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f15c318f749
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:00007f15c3fff038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f15c33e6090 RCX: 00007f15c318f749
RDX: 00002000000000c0 RSI: 0000200000000080 RDI: 00002000000001c0
RBP: 00007f15c3213f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004418 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f15c33e6128 R14: 00007f15c33e6090 R15: 00007fff0289a0e8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:create_empty_buffers+0x48/0x530 fs/buffer.c:1694
Code: 00 00 00 00 fc ff df e8 36 71 74 ff 48 89 df 4c 89 e6 ba 40 8c 40 00 e8 16 c5 ff ff 49 89 c4 48 89 04 24 4c 89 e0 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 e7 e8 59 4c db ff 4d 09 3c 24 49 83 c4
RSP: 0018:ffffc9000c8a7868 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffea0001609980 RCX: ffff888077b68000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000c8a79f8 R08: ffffea0001609987 R09: 1ffffd40002c1330
R10: dffffc0000000000 R11: fffff940002c1331 R12: 0000000000000000
R13: ffffea0001609988 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f15c3fff6c0(0000) GS:ffff888125abd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1fffd156c0 CR3: 0000000078c10000 CR4: 00000000003526f0
----------------
Code disassembly (best guess), 6 bytes skipped:
   0:	df e8                	fucomip %st(0),%st
   2:	36 71 74             	ss jno 0x79
   5:	ff 48 89             	decl   -0x77(%rax)
   8:	df 4c 89 e6          	fisttps -0x1a(%rcx,%rcx,4)
   c:	ba 40 8c 40 00       	mov    $0x408c40,%edx
  11:	e8 16 c5 ff ff       	call   0xffffc52c
  16:	49 89 c4             	mov    %rax,%r12
  19:	48 89 04 24          	mov    %rax,(%rsp)
  1d:	4c 89 e0             	mov    %r12,%rax
  20:	48 c1 e8 03          	shr    $0x3,%rax
* 24:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1) <-- trapping instruction
  29:	74 08                	je     0x33
  2b:	4c 89 e7             	mov    %r12,%rdi
  2e:	e8 59 4c db ff       	call   0xffdb4c8c
  33:	4d 09 3c 24          	or     %r15,(%r12)
  37:	49                   	rex.WB
  38:	83                   	.byte 0x83
  39:	c4                   	.byte 0xc4