general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]
CPU: 0 PID: 11796 Comm: syz-executor.0 Not tainted 5.12.0-rc7-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:d_backing_inode include/linux/dcache.h:552 [inline]
RIP: 0010:security_inode_getattr+0x46/0x140 security/security.c:1286
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 04 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5d 08 48 8d 7b 68 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d7 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc90000cd7640 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90009342000
RDX: 000000000000000d RSI: ffffffff838da56e RDI: 0000000000000068
RBP: ffffc90000cd7810 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff82a7ad8b R11: 0000000000000000 R12: ffff8880245758d0
R13: ffffc90000cd7810 R14: 00000000000007ff R15: 0000000000000000
FS:  00007fbca0e90700(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000565553109470 CR3: 000000007287e000 CR4: 0000000000150ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_getattr+0x22/0x60 fs/stat.c:131
 ovl_copy_up_one+0x133/0x1d90 fs/overlayfs/copy_up.c:884
 ovl_copy_up_flags+0x14b/0x1d0 fs/overlayfs/copy_up.c:965
 ovl_maybe_copy_up+0x140/0x190 fs/overlayfs/copy_up.c:997
 ovl_open+0xba/0x270 fs/overlayfs/file.c:149
 do_dentry_open+0x4b9/0x11b0 fs/open.c:826
 do_open fs/namei.c:3367 [inline]
 path_openat+0x1c0e/0x27e0 fs/namei.c:3500
 do_filp_open+0x190/0x3d0 fs/namei.c:3527
 file_open_name+0x290/0x400 fs/open.c:1132
 acct_on+0x78/0x780 kernel/acct.c:207
 __do_sys_acct kernel/acct.c:286 [inline]
 __se_sys_acct kernel/acct.c:273 [inline]
 __x64_sys_acct+0xab/0x1f0 kernel/acct.c:273
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x466459
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbca0e90188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3
RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000466459
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000440
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008
R13: 00007ffd954f1ecf R14: 00007fbca0e90300 R15: 0000000000022000
Modules linked in:
---[ end trace e485ceae237603f7 ]---
RIP: 0010:d_backing_inode include/linux/dcache.h:552 [inline]
RIP: 0010:security_inode_getattr+0x46/0x140 security/security.c:1286
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 04 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5d 08 48 8d 7b 68 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d7 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc90000cd7640 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90009342000
RDX: 000000000000000d RSI: ffffffff838da56e RDI: 0000000000000068
RBP: ffffc90000cd7810 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff82a7ad8b R11: 0000000000000000 R12: ffff8880245758d0
R13: ffffc90000cd7810 R14: 00000000000007ff R15: 0000000000000000
FS:  00007fbca0e90700(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a7f5f5028 CR3: 000000007287e000 CR4: 0000000000150ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400