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: 296 Comm: syz-executor109 Not tainted 6.1.128-syzkaller-00029-g5145d157731f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:d_backing_inode include/linux/dcache.h:552 [inline]
RIP: 0010:security_inode_getattr+0x47/0x130 security/security.c:1359
Code: 2d ff 49 8d 5f 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 c7 a6 75 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 aa a6 75 ff 48 8b 1b 48 83 c3 0c
RSP: 0018:ffffc90000e26ed8 EFLAGS: 00010206
RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff8881260abcc0
RDX: 0000000000000000 RSI: ffffc90000e273c0 RDI: ffffc90000e273b0
RBP: ffffc90000e26f00 R08: dffffc0000000000 R09: ffffc90000e273b0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000e273c0
R13: dffffc0000000000 R14: ffffc90000e273b0 R15: ffffc90000e273b0
FS: 0000555560d18380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001600 CR3: 000000012607a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
vfs_getattr+0x2a/0x310 fs/stat.c:158
ovl_copy_up_one fs/overlayfs/copy_up.c:974 [inline]
ovl_copy_up_flags+0x5c8/0x3b40 fs/overlayfs/copy_up.c:1060
ovl_maybe_copy_up+0x15a/0x190 fs/overlayfs/copy_up.c:1092
ovl_open+0x108/0x2a0 fs/overlayfs/file.c:155
do_dentry_open+0x891/0x1250 fs/open.c:884
vfs_open fs/open.c:1015 [inline]
dentry_open+0xb8/0x100 fs/open.c:1031
file_open+0x2a7/0x650 fs/incfs/vfs.c:1501
do_dentry_open+0x891/0x1250 fs/open.c:884
vfs_open+0x73/0x80 fs/open.c:1015
do_open fs/namei.c:3625 [inline]
path_openat+0x2532/0x2d60 fs/namei.c:3782
do_filp_open+0x230/0x480 fs/namei.c:3809
do_sys_openat2+0x151/0x870 fs/open.c:1341
do_sys_open fs/open.c:1357 [inline]
__do_sys_creat fs/open.c:1435 [inline]
__se_sys_creat fs/open.c:1429 [inline]
__x64_sys_creat+0x11f/0x160 fs/open.c:1429
x64_sys_call+0x27b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:86
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f56490a4569
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:00007ffd3ee9d948 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f56490a4569
RDX: 00007f56490a4569 RSI: 0000000000000000 RDI: 0000200000000100
RBP: 00002000000000c0 R08: 00007ffd3ee9db28 R09: 00007ffd3ee9db28
R10: 00007ffd3ee9db28 R11: 0000000000000246 R12: 0030656c69662f2e
R13: 00007ffd3ee9db18 R14: 0000000000000001 R15: 0000000000000001
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:d_backing_inode include/linux/dcache.h:552 [inline]
RIP: 0010:security_inode_getattr+0x47/0x130 security/security.c:1359
Code: 2d ff 49 8d 5f 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 c7 a6 75 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 aa a6 75 ff 48 8b 1b 48 83 c3 0c
RSP: 0018:ffffc90000e26ed8 EFLAGS: 00010206
RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff8881260abcc0
RDX: 0000000000000000 RSI: ffffc90000e273c0 RDI: ffffc90000e273b0
RBP: ffffc90000e26f00 R08: dffffc0000000000 R09: ffffc90000e273b0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000e273c0
R13: dffffc0000000000 R14: ffffc90000e273b0 R15: ffffc90000e273b0
FS: 0000555560d18380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559a1bc73098 CR3: 000000012607a000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 2d ff 49 8d 5f sub $0x5f8d49ff,%eax
5: 08 48 89 or %cl,-0x77(%rax)
8: d8 48 c1 fmuls -0x3f(%rax)
b: e8 03 42 80 3c call 0x3c804213
10: 28 00 sub %al,(%rax)
12: 74 08 je 0x1c
14: 48 89 df mov %rbx,%rdi
17: e8 c7 a6 75 ff call 0xff75a6e3
1c: 48 8b 1b mov (%rbx),%rbx
1f: 48 83 c3 30 add $0x30,%rbx
23: 48 89 d8 mov %rbx,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 df mov %rbx,%rdi
34: e8 aa a6 75 ff call 0xff75a6e3
39: 48 8b 1b mov (%rbx),%rbx
3c: 48 83 c3 0c add $0xc,%rbx