loop0: detected capacity change from 0 to 32768 JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. loop0: detected capacity change from 32768 to 0 (syz.0.0,5309,0):ocfs2_find_entry_id:421 ERROR: status = -5 VFS_BUG_ON_INODE(!S_ISDIR(inode->i_mode)): inode:ffff8880524d2460 fs:ocfs2 mode:100000 opflags:0x2 flags:0x20 state:0x0 count:2 ------------[ cut here ]------------ kernel BUG at fs/namei.c:687! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5309 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:lookup_inode_permission_may_exec fs/namei.c:687 [inline] RIP: 0010:may_lookup fs/namei.c:1961 [inline] RIP: 0010:link_path_walk+0x1904/0x1910 fs/namei.c:2604 Code: e8 81 6a 03 00 90 0f 0b e8 19 36 76 ff 45 89 fc e9 54 fd ff ff e8 0c 36 76 ff 4c 89 e7 48 c7 c6 40 d4 1f 8c e8 5d 6a 03 00 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000dd17a20 EFLAGS: 00010246 RAX: d37ec2831483d900 RBX: ffffc9000dd17c58 RCX: d37ec2831483d900 RDX: ffffc9000ecc2000 RSI: 0000000000000819 RDI: 000000000000081a RBP: 0000000000008000 R08: ffff88801fc246d3 R09: 1ffff11003f848da R10: dffffc0000000000 R11: ffffed1003f848db R12: ffff8880524d2460 R13: ffffc9000dd17c70 R14: 0000000000008000 R15: ffff888000b20518 FS: 00007fbd98ca66c0(0000) GS:ffff88808c30a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000000018c0 CR3: 0000000052b43000 CR4: 0000000000352ef0 Call Trace: path_lookupat+0xe4/0x8c0 fs/namei.c:2812 filename_lookup+0x265/0x5d0 fs/namei.c:2842 user_path_at+0x40/0x160 fs/namei.c:3641 do_mount fs/namespace.c:4178 [inline] __do_sys_mount fs/namespace.c:4397 [inline] __se_sys_mount+0x2dc/0x420 fs/namespace.c:4374 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbd97d9e0d9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbd98ca5fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fbd98025fa0 RCX: 00007fbd97d9e0d9 RDX: 0000200000000200 RSI: 0000200000000100 RDI: 0000000000000000 RBP: 00007fbd97e35024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbd98026038 R14: 00007fbd98025fa0 R15: 00007ffee13561d8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:lookup_inode_permission_may_exec fs/namei.c:687 [inline] RIP: 0010:may_lookup fs/namei.c:1961 [inline] RIP: 0010:link_path_walk+0x1904/0x1910 fs/namei.c:2604 Code: e8 81 6a 03 00 90 0f 0b e8 19 36 76 ff 45 89 fc e9 54 fd ff ff e8 0c 36 76 ff 4c 89 e7 48 c7 c6 40 d4 1f 8c e8 5d 6a 03 00 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000dd17a20 EFLAGS: 00010246 RAX: d37ec2831483d900 RBX: ffffc9000dd17c58 RCX: d37ec2831483d900 RDX: ffffc9000ecc2000 RSI: 0000000000000819 RDI: 000000000000081a RBP: 0000000000008000 R08: ffff88801fc246d3 R09: 1ffff11003f848da R10: dffffc0000000000 R11: ffffed1003f848db R12: ffff8880524d2460 R13: ffffc9000dd17c70 R14: 0000000000008000 R15: ffff888000b20518 FS: 00007fbd98ca66c0(0000) GS:ffff88808c30a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbd98c63fe8 CR3: 0000000052b43000 CR4: 0000000000352ef0