------------[ cut here ]------------ WARNING: CPU: 1 PID: 9234 at fs/overlayfs/dir.c:212 ovl_create_real+0x3f4/0x480 fs/overlayfs/dir.c:212 Modules linked in: CPU: 1 PID: 9234 Comm: syz-executor.3 Not tainted 5.15.0-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: ab fe 48 c7 c7 a8 09 ef 8d 48 c7 c6 00 d4 b0 8a 4c 89 f2 44 89 e9 41 89 d8 31 c0 e8 56 9f 5a 01 e9 e0 fe ff ff e8 5c 36 ab 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:ffffc90004b1f4e0 EFLAGS: 00010287 RAX: ffffffff82d90ec4 RBX: ffff88806c5f3208 RCX: 0000000000040000 RDX: ffffc9000fa28000 RSI: 00000000000157c5 RDI: 00000000000157c6 RBP: ffffc90004b1f590 R08: ffffffff82d90db2 R09: ffffed100fd4a0fb R10: ffffed100fd4a0fb R11: 0000000000000000 R12: 1ffff92000963ea0 R13: dffffc0000000000 R14: ffff88806c5f31a0 R15: 1ffff92000963ea4 FS: 00007f3e4b8b8700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30725000 CR3: 000000006faa9000 CR4: 00000000003506e0 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+0x3e23/0x5d80 fs/overlayfs/super.c:2067 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:2988 [inline] path_mount+0x1986/0x2c30 fs/namespace.c:3318 do_mount fs/namespace.c:3331 [inline] __do_sys_mount fs/namespace.c:3539 [inline] __se_sys_mount+0x308/0x3c0 fs/namespace.c:3516 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f3e4e342ae9 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:00007f3e4b8b8188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f3e4e455f60 RCX: 00007f3e4e342ae9 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f3e4e39cf25 R08: 0000000020000340 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2127baaf R14: 00007f3e4b8b8300 R15: 0000000000022000