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: 26190 Comm: syz-executor.4 Not tainted 5.11.0-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:552 [inline] RIP: 0010:security_inode_getattr+0x42/0x140 security/security.c:1286 Code: e5 fd 49 8d 5e 08 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 9c 77 29 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 7f 77 29 fe 48 8b 1b 48 83 c3 0c RSP: 0018:ffffc90007a7fc68 EFLAGS: 00010202 RAX: 000000000000000d RBX: 0000000000000068 RCX: 0000000000040000 RDX: ffffc90011502000 RSI: 0000000000002e53 RDI: 0000000000002e54 RBP: ffffc90007a7fda8 R08: dffffc0000000000 R09: ffffc90007a7fda8 R10: fffff52000f4ffb7 R11: 0000000000000000 R12: ffffc90007a7fd18 R13: dffffc0000000000 R14: ffffc90007a7fda8 R15: dffffc0000000000 FS: 00007fad9bc1e700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000603e8000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: vfs_getattr+0x21/0x60 fs/stat.c:121 ovl_getattr+0x26f/0xd40 fs/overlayfs/inode.c:245 vfs_getattr fs/stat.c:124 [inline] vfs_statx+0x118/0x320 fs/stat.c:189 vfs_fstatat fs/stat.c:207 [inline] __do_sys_newfstatat fs/stat.c:376 [inline] __se_sys_newfstatat fs/stat.c:370 [inline] __x64_sys_newfstatat+0xb9/0x110 fs/stat.c:370 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x465ef9 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:00007fad9bc1e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 000000000056c0b0 RCX: 0000000000465ef9 RDX: 0000000020000480 RSI: 0000000020000440 RDI: ffffffffffffff9c RBP: 00000000004bcd1c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0b0 R13: 00007ffd4ffae5cf R14: 00007fad9bc1e300 R15: 0000000000022000 Modules linked in: ---[ end trace 84582e0862d4cc76 ]--- RIP: 0010:d_backing_inode include/linux/dcache.h:552 [inline] RIP: 0010:security_inode_getattr+0x42/0x140 security/security.c:1286 Code: e5 fd 49 8d 5e 08 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 9c 77 29 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 7f 77 29 fe 48 8b 1b 48 83 c3 0c RSP: 0018:ffffc90007a7fc68 EFLAGS: 00010202 RAX: 000000000000000d RBX: 0000000000000068 RCX: 0000000000040000 RDX: ffffc90011502000 RSI: 0000000000002e53 RDI: 0000000000002e54 RBP: ffffc90007a7fda8 R08: dffffc0000000000 R09: ffffc90007a7fda8 R10: fffff52000f4ffb7 R11: 0000000000000000 R12: ffffc90007a7fd18 R13: dffffc0000000000 R14: ffffc90007a7fda8 R15: dffffc0000000000 FS: 00007fad9bc1e700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000053e6f8 CR3: 00000000603e8000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600