general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
CPU: 0 PID: 295 Comm: syz-executor159 Not tainted 5.15.178-syzkaller-00033-g9cecf52dacae #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:d_backing_inode include/linux/dcache.h:562 [inline]
RIP: 0010:security_inode_getattr+0x47/0x130 security/security.c:1347
Code: 37 ff 49 8d 5f 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 77 57 7a ff 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 5a 57 7a ff 48 8b 1b 48 83 c3 0c
RSP: 0018:ffffc90000986ed0 EFLAGS: 00010206
RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88810cf83b40
RDX: 0000000000000000 RSI: ffffc90000987400 RDI: ffffc900009873f0
RBP: ffffc90000986ef8 R08: dffffc0000000000 R09: ffffc900009873f0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000987400
R13: dffffc0000000000 R14: ffffc900009873f0 R15: ffffc900009873f0
FS: 0000555566c33380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001600 CR3: 000000010c42d000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
vfs_getattr+0x2a/0x320 fs/stat.c:157
ovl_copy_up_one fs/overlayfs/copy_up.c:961 [inline]
ovl_copy_up_flags+0x629/0x2d30 fs/overlayfs/copy_up.c:1047
ovl_maybe_copy_up+0x15a/0x190 fs/overlayfs/copy_up.c:1079
ovl_open+0xad/0x210 fs/overlayfs/file.c:152
do_dentry_open+0x81c/0xfd0 fs/open.c:828
vfs_open fs/open.c:958 [inline]
dentry_open+0xb8/0x100 fs/open.c:974
file_open+0x2a7/0x650 fs/incfs/vfs.c:1493
do_dentry_open+0x81c/0xfd0 fs/open.c:828
vfs_open+0x73/0x80 fs/open.c:958
do_open fs/namei.c:3608 [inline]
path_openat+0x26f0/0x2f40 fs/namei.c:3742
do_filp_open+0x21c/0x460 fs/namei.c:3769
do_sys_openat2+0x13f/0x820 fs/open.c:1234
do_sys_open fs/open.c:1250 [inline]
__do_sys_creat fs/open.c:1326 [inline]
__se_sys_creat fs/open.c:1320 [inline]
__x64_sys_creat+0x11f/0x160 fs/open.c:1320
x64_sys_call+0x27b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:86
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f6135685569
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 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:00007ffe0f32dc88 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f6135685569
RDX: 00007f6135685569 RSI: 0000000000000000 RDI: 0000200000000100
RBP: 00002000000000c0 R08: 00007ffe0f32de68 R09: 00007ffe0f32de68
R10: 00007ffe0f32de68 R11: 0000000000000246 R12: 0030656c69662f2e
R13: 00007ffe0f32de58 R14: 0000000000000001 R15: 0000000000000001
</TASK>
Modules linked in:
---[ end trace 32f9e53782fdbb4f ]---
RIP: 0010:d_backing_inode include/linux/dcache.h:562 [inline]
RIP: 0010:security_inode_getattr+0x47/0x130 security/security.c:1347
Code: 37 ff 49 8d 5f 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 77 57 7a ff 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 5a 57 7a ff 48 8b 1b 48 83 c3 0c
RSP: 0018:ffffc90000986ed0 EFLAGS: 00010206
RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88810cf83b40
RDX: 0000000000000000 RSI: ffffc90000987400 RDI: ffffc900009873f0
RBP: ffffc90000986ef8 R08: dffffc0000000000 R09: ffffc900009873f0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000987400
R13: dffffc0000000000 R14: ffffc900009873f0 R15: ffffc900009873f0
FS: 0000555566c33380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001600 CR3: 000000010c42d000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: ff 49 8d decl -0x73(%rcx)
3: 5f pop %rdi
4: 08 48 89 or %cl,-0x77(%rax)
7: d8 48 c1 fmuls -0x3f(%rax)
a: e8 03 42 80 3c call 0x3c804212
f: 28 00 sub %al,(%rax)
11: 74 08 je 0x1b
13: 48 89 df mov %rbx,%rdi
16: e8 77 57 7a ff call 0xff7a5792
1b: 48 8b 1b mov (%rbx),%rbx
1e: 48 83 c3 30 add $0x30,%rbx
22: 48 89 d8 mov %rbx,%rax
25: 48 c1 e8 03 shr $0x3,%rax
* 29: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction
2e: 74 08 je 0x38
30: 48 89 df mov %rbx,%rdi
33: e8 5a 57 7a ff call 0xff7a5792
38: 48 8b 1b mov (%rbx),%rbx
3b: 48 83 c3 0c add $0xc,%rbx