------------[ cut here ]------------
WARNING: CPU: 3 PID: 12156 at fs/read_write.c:414 __kernel_read+0x697/0x830 fs/read_write.c:414
Modules linked in:
CPU: 3 PID: 12156 Comm: syz-executor.1 Not tainted 6.3.0-rc5-syzkaller-00153-gaa318c48808c #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:__kernel_read+0x697/0x830 fs/read_write.c:414
Code: 05 00 00 4c 89 e2 48 c7 c6 00 78 5b 8a 48 c7 c7 40 78 5b 8a e8 3a 79 84 ff 49 c7 c6 ea ff ff ff e9 8e fe ff ff e8 79 6c a0 ff <0f> 0b 49 c7 c6 ea ff ff ff e9 7b fe ff ff e8 66 6c a0 ff 4c 89 ea
RSP: 0018:ffffc900223cf520 EFLAGS: 00010212
RAX: 000000000000198a RBX: ffff888022fa0f7c RCX: ffffc90002f79000
RDX: 0000000000040000 RSI: ffffffff81e26b47 RDI: 0000000000000005
RBP: 1ffff92004479ea5 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000094001 R12: ffff888022fa0f00
R13: ffffc900223cf728 R14: 000000004858801c R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802cb80000(0063) knlGS:00000000f7f1cb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7ea55b6 CR3: 000000006ee87000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 build_merkle_tree+0x3f7/0xc30 fs/verity/enable.c:111
 enable_verity+0x66a/0x9d0 fs/verity/enable.c:250
 fsverity_ioctl_enable+0x3b6/0x500 fs/verity/enable.c:368
 __ext4_ioctl+0x23d2/0x4b00 fs/ext4/ioctl.c:1574
 ext4_ioctl fs/ext4/ioctl.c:1608 [inline]
 ext4_compat_ioctl+0xca/0x430 fs/ext4/ioctl.c:1684
 __do_compat_sys_ioctl+0x255/0x2b0 fs/ioctl.c:968
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
 entry_SYSENTER_compat_after_hwframe+0x70/0x82
RIP: 0023:0xf7f21579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f7f1c5cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000040806685
RDX: 0000000020000240 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	10 06                	adc    %al,(%rsi)
   2:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   6:	10 07                	adc    %al,(%rdi)
   8:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   c:	10 08                	adc    %cl,(%rax)
   e:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
  1e:	00 51 52             	add    %dl,0x52(%rcx)
  21:	55                   	push   %rbp
  22:	89 e5                	mov    %esp,%ebp
  24:	0f 34                	sysenter
  26:	cd 80                	int    $0x80
* 28:	5d                   	pop    %rbp <-- trapping instruction
  29:	5a                   	pop    %rdx
  2a:	59                   	pop    %rcx
  2b:	c3                   	retq
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	90                   	nop
  2f:	90                   	nop
  30:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi
  37:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi