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: 8440 Comm: syz-executor.2 Not tainted 5.9.0-rc4-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:549 [inline]
RIP: 0010:security_inode_getattr+0x42/0x140 security/security.c:1276
Code: 1b fe 49 8d 5e 08 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ec 8e 5b fe 48 8b 1b 48 83 c3 68 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 cf 8e 5b fe 48 8b 1b 48 83 c3 0c
RSP: 0018:ffffc9000af17c70 EFLAGS: 00010202
RAX: 000000000000000d RBX: 0000000000000068 RCX: ffff8880a7004300
RDX: 0000000000000000 RSI: ffffc9000af17d30 RDI: ffffc9000af17dc0
RBP: ffffc9000af17dc0 R08: dffffc0000000000 R09: ffffc9000af17dc0
R10: fffff520015e2fba R11: 0000000000000000 R12: ffffc9000af17d30
R13: 0000000000000000 R14: ffffc9000af17dc0 R15: dffffc0000000000
FS:  00007f44bf707700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faa7d32adb8 CR3: 00000000a2879000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_getattr+0x21/0x60 fs/stat.c:121
 ovl_getattr+0x293/0xd20 fs/overlayfs/inode.c:245
 vfs_getattr fs/stat.c:124 [inline]
 vfs_statx+0x148/0x380 fs/stat.c:206
 vfs_stat include/linux/fs.h:3173 [inline]
 __do_sys_newstat fs/stat.c:361 [inline]
 __se_sys_newstat fs/stat.c:357 [inline]
 __x64_sys_newstat+0x81/0xd0 fs/stat.c:357
 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d5b9
Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f44bf706c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000000339c0 RCX: 000000000045d5b9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280
RBP: 000000000118d0b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118d08c
R13: 00007fffa097f5bf R14: 00007f44bf7079c0 R15: 000000000118d08c
Modules linked in:
---[ end trace 387b490079550ca1 ]---
RIP: 0010:d_backing_inode include/linux/dcache.h:549 [inline]
RIP: 0010:security_inode_getattr+0x42/0x140 security/security.c:1276
Code: 1b fe 49 8d 5e 08 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ec 8e 5b fe 48 8b 1b 48 83 c3 68 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 cf 8e 5b fe 48 8b 1b 48 83 c3 0c
RSP: 0018:ffffc9000af17c70 EFLAGS: 00010202
RAX: 000000000000000d RBX: 0000000000000068 RCX: ffff8880a7004300
RDX: 0000000000000000 RSI: ffffc9000af17d30 RDI: ffffc9000af17dc0
RBP: ffffc9000af17dc0 R08: dffffc0000000000 R09: ffffc9000af17dc0
R10: fffff520015e2fba R11: 0000000000000000 R12: ffffc9000af17d30
R13: 0000000000000000 R14: ffffc9000af17dc0 R15: dffffc0000000000
FS:  00007f44bf707700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000a2879000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400