WARNING: CPU: 0 PID: 30204 at fs/overlayfs/dir.c:212 ovl_create_real+0x3f4/0x480 fs/overlayfs/dir.c:212
Modules linked in:
CPU: 0 PID: 30204 Comm: syz-executor.1 Not tainted 5.14.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ovl_create_real+0x3f4/0x480 fs/overlayfs/dir.c:212
Code: af fe 48 c7 c7 c0 5e cd 8d 48 c7 c6 80 60 90 8a 4c 89 f2 44 89 e9 41 89 d8 31 c0 e8 96 d5 55 01 e9 e0 fe ff ff e8 fc 34 af fe <0f> 0b bb fb ff ff ff 43 80 3c 2f 00 0f 85 ec fe ff ff e9 f1 fe ff
RSP: 0018:ffffc9000287f500 EFLAGS: 00010287
RAX: ffffffff82d1b514 RBX: ffff88809d2b07c0 RCX: 0000000000040000
RDX: ffffc9000ba20000 RSI: 0000000000004ef8 RDI: 0000000000004ef9
RBP: ffffc9000287f5b0 R08: ffffffff82d1b402 R09: ffffed10042e90fb
R10: ffffed10042e90fb R11: 0000000000000000 R12: 1ffff9200050fea4
R13: dffffc0000000000 R14: ffff88809d2b0758 R15: 1ffff9200050fea8
FS:  00007f6d2bacc700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c016def000 CR3: 0000000022d35000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ovl_workdir_create+0x425/0x600 fs/overlayfs/super.c:790
 ovl_make_workdir+0xeb/0x12b0 fs/overlayfs/super.c:1364
 ovl_get_workdir fs/overlayfs/super.c:1511 [inline]
 ovl_fill_super+0x3c50/0x5b70 fs/overlayfs/super.c:2069
 mount_nodev+0x52/0xe0 fs/super.c:1414
 legacy_get_tree+0xea/0x180 fs/fs_context.c:610
 vfs_get_tree+0x86/0x270 fs/super.c:1498
 do_new_mount fs/namespace.c:2987 [inline]
 path_mount+0x1969/0x2c00 fs/namespace.c:3317
 do_mount fs/namespace.c:3330 [inline]
 __do_sys_mount fs/namespace.c:3538 [inline]
 __se_sys_mount+0x2f9/0x3b0 fs/namespace.c:3515
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665f9
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:00007f6d2bacc188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9
RDX: 00000000200000c0 RSI: 0000000020000000 RDI: 000000000040000d
RBP: 00000000004bfcc4 R08: 0000000020000100 R09: 0000000000000000
R10: 0000000007000000 R11: 0000000000000246 R12: 000000000056c038
R13: 00007ffed00efe7f R14: 00007f6d2bacc300 R15: 0000000000022000