general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 545 Comm: syz-executor321 Not tainted 5.10.156-syzkaller-00941-g37d3df60cb6a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:ext4_xattr_set_entry+0x4a7/0x3820 fs/ext4/xattr.c:1586
Code: 00 00 48 89 d8 48 c1 e8 03 48 89 84 24 28 01 00 00 42 80 3c 20 00 74 08 48 89 df e8 b3 7f ba ff 4c 8b 33 4c 89 f0 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 8f 2d 00 00 4c 89 f8 48 2b 44 24 18 48 89
RSP: 0018:ffffc90001277380 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc90001277780 RCX: ffff888111ab3b40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90001277618 R08: ffffffff81ec9679 R09: ffffed102347b479
R10: ffffed102347b479 R11: 1ffff1102347b478 R12: dffffc0000000000
R13: 1ffff9200024eeea R14: 0000000000000000 R15: 0000000000000000
FS:  00007f6d9d2e3700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6d9d2e3718 CR3: 0000000110a63000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_xattr_ibody_set+0x7c/0x2a0 fs/ext4/xattr.c:2227
 ext4_xattr_set_handle+0xc5d/0x15a0 fs/ext4/xattr.c:2384
 ext4_xattr_set+0x23e/0x3e0 fs/ext4/xattr.c:2497
 ext4_xattr_security_set+0x3b/0x50 fs/ext4/xattr_security.c:30
 __vfs_setxattr+0x436/0x490 fs/xattr.c:177
 __vfs_setxattr_noperm+0x11b/0x4e0 fs/xattr.c:208
 __vfs_setxattr_locked+0x1f9/0x210 fs/xattr.c:266
 vfs_setxattr+0x11e/0x2d0 fs/xattr.c:283
 setxattr+0x1ea/0x3f0 fs/xattr.c:548
 path_setxattr+0x174/0x250 fs/xattr.c:567
 __do_sys_lsetxattr fs/xattr.c:589 [inline]
 __se_sys_lsetxattr fs/xattr.c:585 [inline]
 __x64_sys_lsetxattr+0xc2/0xe0 fs/xattr.c:585
 do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f6da5719ab9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 15 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6d9d2e32f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 00007f6da579f7b0 RCX: 00007f6da5719ab9
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000020000140
RBP: 00007f6da576b768 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e
R13: 7974697275636573 R14: 00007f6da576b340 R15: 00007f6da579f7b8
Modules linked in:
---[ end trace 192e0329298b31c9 ]---
RIP: 0010:ext4_xattr_set_entry+0x4a7/0x3820 fs/ext4/xattr.c:1586
Code: 00 00 48 89 d8 48 c1 e8 03 48 89 84 24 28 01 00 00 42 80 3c 20 00 74 08 48 89 df e8 b3 7f ba ff 4c 8b 33 4c 89 f0 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 8f 2d 00 00 4c 89 f8 48 2b 44 24 18 48 89
RSP: 0018:ffffc90001277380 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc90001277780 RCX: ffff888111ab3b40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90001277618 R08: ffffffff81ec9679 R09: ffffed102347b479
R10: ffffed102347b479 R11: 1ffff1102347b478 R12: dffffc0000000000
R13: 1ffff9200024eeea R14: 0000000000000000 R15: 0000000000000000
FS:  00007f6d9d2e3700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6da576aba8 CR3: 0000000110a63000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	48 89 d8             	mov    %rbx,%rax
   5:	48 c1 e8 03          	shr    $0x3,%rax
   9:	48 89 84 24 28 01 00 	mov    %rax,0x128(%rsp)
  10:	00
  11:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  16:	74 08                	je     0x20
  18:	48 89 df             	mov    %rbx,%rdi
  1b:	e8 b3 7f ba ff       	callq  0xffba7fd3
  20:	4c 8b 33             	mov    (%rbx),%r14
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 8a 04 20          	mov    (%rax,%r12,1),%al <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	0f 85 8f 2d 00 00    	jne    0x2dc5
  36:	4c 89 f8             	mov    %r15,%rax
  39:	48 2b 44 24 18       	sub    0x18(%rsp),%rax
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89