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: 9726 Comm: syz-executor.2 Not tainted 5.8.0-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+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:ffffc900064ffae0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000d096000 RDX: 000000000000000d RSI: ffffffff8358420e RDI: 0000000000000068 RBP: ffffc900064ffba8 R08: 0000000000000000 R09: ffff888082dea4d7 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffc900064ffba8 R14: 0000000000000400 R15: 0000000000000000 FS: 00007f8c9013f700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000745918 CR3: 0000000093cc7000 CR4: 00000000001526f0 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_lstat include/linux/fs.h:3175 [inline] __do_sys_newlstat+0x91/0x110 fs/stat.c:374 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d239 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:00007f8c9013ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 000000000001fb00 RCX: 000000000045d239 RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000020000280 RBP: 000000000118d0b8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118d08c R13: 00007ffd5b6d725f R14: 00007f8c9013f9c0 R15: 000000000118d08c Modules linked in: ---[ end trace 0fcfa705d04eb5ed ]--- RIP: 0010:d_backing_inode include/linux/dcache.h:549 [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:ffffc900064ffae0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000d096000 RDX: 000000000000000d RSI: ffffffff8358420e RDI: 0000000000000068 RBP: ffffc900064ffba8 R08: 0000000000000000 R09: ffff888082dea4d7 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffc900064ffba8 R14: 0000000000000400 R15: 0000000000000000 FS: 00007f8c9013f700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000745918 CR3: 0000000093cc7000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400