loop0: rw=1, want=351, limit=64
kasan: GPF could be caused by NULL-ptr deref or user memory access
attempt to access beyond end of device
loop0: rw=1, want=352, limit=64
attempt to access beyond end of device
general protection fault: 0000 [#1] PREEMPT SMP KASAN
loop0: rw=1, want=353, limit=64
CPU: 0 PID: 27909 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
attempt to access beyond end of device
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
RIP: 0010:hfs_find_init+0x70/0x230 fs/hfs/bfind.c:21
Code: c1 ea 03 80 3c 02 00 0f 85 bc 01 00 00 4c 8d 6b 40 48 c7 45 18 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 6b 01 00 00 8b 43 40 be c0 00
loop0: rw=1, want=354, limit=64
RSP: 0018:ffff88804333f530 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90008e1d000
RDX: 0000000000000008 RSI: ffffffff81fd1c41 RDI: ffff88804333f5b0
RBP: ffff88804333f598 R08: 0000000000000000 R09: 0000000000000004
R10: 0000000000000004 R11: 0000000000000000 R12: ffff888090a0f280
R13: 0000000000000040 R14: ffff88809b62a772 R15: ffff88804333f598
FS:  00007fb82af50700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5e59000000 CR3: 00000000aa5d3000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 hfs_ext_read_extent+0x191/0xa20 fs/hfs/extent.c:200
 hfs_get_block+0x53d/0x7e0 fs/hfs/extent.c:366
 block_read_full_page+0x288/0xd10 fs/buffer.c:2259
 do_read_cache_page+0x533/0x1170 mm/filemap.c:2828
 read_mapping_page include/linux/pagemap.h:402 [inline]
 hfs_btree_open+0x6ae/0x1430 fs/hfs/btree.c:78
 hfs_mdb_get+0x1402/0x1cf0 fs/hfs/mdb.c:193
 hfs_fill_super+0xd6a/0x1310 fs/hfs/super.c:413
 mount_bdev+0x2fc/0x3b0 fs/super.c:1158
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fb82c9df62a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb82af4ff88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000000002a6 RCX: 00007fb82c9df62a
RDX: 0000000020000440 RSI: 00000000200002c0 RDI: 00007fb82af4ffe0
RBP: 00007fb82af50020 R08: 00007fb82af50020 R09: 0000000002000000
R10: 0000000002000000 R11: 0000000000000202 R12: 0000000020000440
R13: 00000000200002c0 R14: 00007fb82af4ffe0 R15: 0000000020004080
Modules linked in:
---[ end trace 2ec8d5075eee8e1b ]---
attempt to access beyond end of device
RIP: 0010:hfs_find_init+0x70/0x230 fs/hfs/bfind.c:21
loop0: rw=1, want=355, limit=64
Code: c1 ea 03 80 3c 02 00 0f 85 bc 01 00 00 4c 8d 6b 40 48 c7 45 18 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 6b 01 00 00 8b 43 40 be c0 00
attempt to access beyond end of device
RSP: 0018:ffff88804333f530 EFLAGS: 00010202
loop0: rw=1, want=356, limit=64
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90008e1d000
attempt to access beyond end of device
RDX: 0000000000000008 RSI: ffffffff81fd1c41 RDI: ffff88804333f5b0
loop0: rw=1, want=361, limit=64
RBP: ffff88804333f598 R08: 0000000000000000 R09: 0000000000000004
attempt to access beyond end of device
R10: 0000000000000004 R11: 0000000000000000 R12: ffff888090a0f280
loop0: rw=1, want=421, limit=64
R13: 0000000000000040 R14: ffff88809b62a772 R15: ffff88804333f598
attempt to access beyond end of device
FS:  00007fb82af50700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
loop0: rw=1, want=4165, limit=64
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
attempt to access beyond end of device
CR2: 00005612b3cf9160 CR3: 00000000aa5d3000 CR4: 00000000003406f0
loop0: rw=1, want=4166, limit=64
attempt to access beyond end of device
loop0: rw=1, want=4167, limit=64
attempt to access beyond end of device
loop0: rw=1, want=4168, limit=64
attempt to access beyond end of device
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
loop0: rw=1, want=4169, limit=64
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
attempt to access beyond end of device
----------------
Code disassembly (best guess):
   0:	c1 ea 03             	shr    $0x3,%edx
   3:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   7:	0f 85 bc 01 00 00    	jne    0x1c9
   d:	4c 8d 6b 40          	lea    0x40(%rbx),%r13
  11:	48 c7 45 18 00 00 00 	movq   $0x0,0x18(%rbp)
  18:	00
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	4c 89 ea             	mov    %r13,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	74 08                	je     0x3a
  32:	3c 03                	cmp    $0x3,%al
  34:	0f 8e 6b 01 00 00    	jle    0x1a5
  3a:	8b 43 40             	mov    0x40(%rbx),%eax
  3d:	be                   	.byte 0xbe
  3e:	c0                   	.byte 0xc0