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: 18934 Comm: syz-executor.3 Not tainted 5.10.178-syzkaller-00127-g43c801dc3325 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:ext4_xattr_set_entry+0x498/0x3960 fs/ext4/xattr.c:1616
Code: 24 78 48 89 d8 48 c1 e8 03 48 89 84 24 28 01 00 00 42 80 3c 38 00 74 08 48 89 df e8 12 b3 ba ff 4c 8b 23 4c 89 e0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 d1 2e 00 00 4c 89 e8 48 2b 44 24 20 48
RSP: 0018:ffffc90000bf6f00 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc90000bf7300 RCX: ffff88816ae53b40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000001c
RBP: ffffc90000bf71a0 R08: ffffffff81eccc44 R09: ffffed102ddabd55
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000000001c R15: dffffc0000000000
FS:  00007fe0add30700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe0adbc5718 CR3: 000000010e05b000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_xattr_ibody_set+0x7c/0x2b0 fs/ext4/xattr.c:2253
 ext4_xattr_set_handle+0xc26/0x14e0 fs/ext4/xattr.c:2410
 ext4_initxattrs+0xa7/0x120 fs/ext4/xattr_security.c:43
 security_inode_init_security+0x252/0x390 security/security.c:1033
 ext4_init_security+0x34/0x40 fs/ext4/xattr_security.c:57
 __ext4_new_inode+0x3159/0x3f70 fs/ext4/ialloc.c:1319
 ext4_create+0x267/0x530 fs/ext4/namei.c:2770
 lookup_open fs/namei.c:3253 [inline]
 open_last_lookups fs/namei.c:3323 [inline]
 path_openat+0x1377/0x3000 fs/namei.c:3512
 do_filp_open+0x21c/0x460 fs/namei.c:3542
 do_sys_openat2+0x13f/0x6e0 fs/open.c:1217
 do_sys_open fs/open.c:1233 [inline]
 __do_sys_open fs/open.c:1241 [inline]
 __se_sys_open fs/open.c:1237 [inline]
 __x64_sys_open+0x221/0x270 fs/open.c:1237
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7fe0b73e0169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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:00007fe0add30168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fe0b75001f0 RCX: 00007fe0b73e0169
RDX: 0000000000000000 RSI: 0000000000046640 RDI: 0000000020000080
RBP: 00007fe0b743bca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeb61536cf R14: 00007fe0add30300 R15: 0000000000022000
Modules linked in:
---[ end trace 182efbe4ec15c43a ]---
RIP: 0010:ext4_xattr_set_entry+0x498/0x3960 fs/ext4/xattr.c:1616
Code: 24 78 48 89 d8 48 c1 e8 03 48 89 84 24 28 01 00 00 42 80 3c 38 00 74 08 48 89 df e8 12 b3 ba ff 4c 8b 23 4c 89 e0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 d1 2e 00 00 4c 89 e8 48 2b 44 24 20 48
RSP: 0018:ffffc90000bf6f00 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc90000bf7300 RCX: ffff88816ae53b40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000001c
RBP: ffffc90000bf71a0 R08: ffffffff81eccc44 R09: ffffed102ddabd55
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000000001c R15: dffffc0000000000
FS:  00007fe0add30700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c016190000 CR3: 000000010e05b000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	24 78                	and    $0x78,%al
   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 38 00       	cmpb   $0x0,(%rax,%r15,1)
  16:	74 08                	je     0x20
  18:	48 89 df             	mov    %rbx,%rdi
  1b:	e8 12 b3 ba ff       	callq  0xffbab332
  20:	4c 8b 23             	mov    (%rbx),%r12
  23:	4c 89 e0             	mov    %r12,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 d1 2e 00 00    	jne    0x2f08
  37:	4c 89 e8             	mov    %r13,%rax
  3a:	48 2b 44 24 20       	sub    0x20(%rsp),%rax
  3f:	48                   	rex.W