general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]
CPU: 1 PID: 9283 Comm: syz-executor.4 Not tainted 5.9.0-rc6-next-20200924-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:d_backing_inode include/linux/dcache.h:550 [inline]
RIP: 0010:security_inode_getattr+0x46/0x140 security/security.c:1276
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:ffffc90006547ae0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000000d RSI: ffffffff83779c6e RDI: 0000000000000068
RBP: ffffc90006547ba8 R08: 0000000000000000 R09: ffff88807a120697
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffc90006547ba8 R14: 0000000000000400 R15: 0000000000000000
FS:  00007f390c5b4700(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd3404bff8 CR3: 00000000a2e23000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_getattr+0x22/0x60 fs/stat.c:121
 ovl_getattr+0x80a/0xd20 fs/overlayfs/inode.c:245
 vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
 vfs_getattr fs/stat.c:124 [inline]
 vfs_statx+0x199/0x390 fs/stat.c:206
 vfs_stat include/linux/fs.h:3156 [inline]
 __do_sys_newstat+0x91/0x110 fs/stat.c:361
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e179
Code: 3d b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 0b b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f390c5b3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000033f00 RCX: 000000000045e179
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280
RBP: 000000000118d0c8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118d09c
R13: 00007ffd5ac3b43f R14: 00007f390c5b49c0 R15: 000000000118d09c
Modules linked in:
---[ end trace 53e63d5364d1acfd ]---
RIP: 0010:d_backing_inode include/linux/dcache.h:550 [inline]
RIP: 0010:security_inode_getattr+0x46/0x140 security/security.c:1276
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:ffffc90006547ae0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000000d RSI: ffffffff83779c6e RDI: 0000000000000068
RBP: ffffc90006547ba8 R08: 0000000000000000 R09: ffff88807a120697
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffc90006547ba8 R14: 0000000000000400 R15: 0000000000000000
FS:  00007f390c5b4700(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001590004 CR3: 00000000a2e23000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400