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: 371 Comm: syz-executor144 Not tainted 5.10.140-syzkaller-00825-g59390358870a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
RIP: 0010:ext4_xattr_set_entry+0x4ad/0x37e0 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 1d 97 ba ff 4c 8b 33 4c 89 f0 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 46 2d 00 00 4c 89 f8 48 2b 44 24 18 48 89
RSP: 0018:ffffc90000b873c0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc90000b877c0 RCX: ffff8881067a8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000001c
RBP: ffffc90000b87658 R08: ffffffff81ec6059 R09: ffffed1021d6c76d
R10: ffffed1021d6c76d R11: 1ffff11021d6c76c R12: dffffc0000000000
R13: 1ffff92000170ef2 R14: 0000000000000000 R15: 0000000000000000
FS: 0000555555deb3c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555dfc728 CR3: 000000011e012000 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_initxattrs+0xb2/0x120 fs/ext4/xattr_security.c:43
security_inode_init_security+0x26c/0x3c0 security/security.c:1033
ext4_init_security+0x34/0x40 fs/ext4/xattr_security.c:57
__ext4_new_inode+0x3648/0x4530 fs/ext4/ialloc.c:1322
ext4_mkdir+0x3b3/0xbb0 fs/ext4/namei.c:2947
vfs_mkdir+0x435/0x610 fs/namei.c:3729
do_mkdirat+0x1b6/0x2d0 fs/namei.c:3752
__do_sys_mkdir fs/namei.c:3768 [inline]
__se_sys_mkdir fs/namei.c:3766 [inline]
__x64_sys_mkdir+0x60/0x70 fs/namei.c:3766
do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7fb59be693d7
Code: 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc053936d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 0000000000004e46 RCX: 00007fb59be693d7
RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffc05393710
RBP: 0000000000000175 R08: 0000000000000000 R09: 0000000000000003
R10: 00007ffc05393477 R11: 0000000000000206 R12: 00007ffc053936fc
R13: 00007ffc05393730 R14: 00007ffc05393710 R15: 0000000000000001
Modules linked in:
---[ end trace 58fa3ede2a53b241 ]---
RIP: 0010:ext4_xattr_set_entry+0x4ad/0x37e0 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 1d 97 ba ff 4c 8b 33 4c 89 f0 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 46 2d 00 00 4c 89 f8 48 2b 44 24 18 48 89
RSP: 0018:ffffc90000b873c0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc90000b877c0 RCX: ffff8881067a8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000001c
RBP: ffffc90000b87658 R08: ffffffff81ec6059 R09: ffffed1021d6c76d
R10: ffffed1021d6c76d R11: 1ffff11021d6c76c R12: dffffc0000000000
R13: 1ffff92000170ef2 R14: 0000000000000000 R15: 0000000000000000
FS: 0000555555deb3c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555dfc728 CR3: 000000011e012000 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 1d 97 ba ff callq 0xffba973d
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 46 2d 00 00 jne 0x2d7c
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