------------[ cut here ]------------
WARNING: CPU: 0 PID: 4095 at fs/inode.c:340 drop_nlink+0xce/0x110 fs/inode.c:340
Modules linked in:
CPU: 0 UID: 0 PID: 4095 Comm: syz.4.1210 Not tainted syzkaller #0 46888e5e5e1e1e111dd74017fc0802fda26c1cfc
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:drop_nlink+0xce/0x110 fs/inode.c:340
Code: 04 00 00 be 08 00 00 00 e8 7f 12 ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 52 6d 95 ff <0f> 0b eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 59 ff ff ff 4c
RSP: 0018:ffffc90011657210 EFLAGS: 00010283
RAX: ffffffff81f2597e RBX: ffff888122526a40 RCX: 0000000000080000
RDX: ffffc9000e44d000 RSI: 00000000000009b9 RDI: 00000000000009ba
RBP: ffffc90011657238 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520022cae38 R12: dffffc0000000000
R13: 1ffff110244a4d51 R14: ffff888122526a88 R15: 0000000000000000
FS:  00007f6cad6986c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 000000011de8e000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 simple_rmdir+0x153/0x260 fs/libfs.c:773
 vfs_rmdir+0x3e3/0x560 fs/namei.c:4348
 incfs_rmdir fs/incfs/vfs.c:649 [inline]
 dir_rmdir+0x23a/0x320 fs/incfs/vfs.c:1352
 vfs_rmdir+0x3e3/0x560 fs/namei.c:4348
 ovl_do_rmdir fs/overlayfs/overlayfs.h:215 [inline]
 ovl_workdir_cleanup+0x1a4/0x800 fs/overlayfs/readdir.c:1156
 ovl_workdir_create+0x29e/0x6f0 fs/overlayfs/super.c:303
 ovl_make_workdir fs/overlayfs/super.c:650 [inline]
 ovl_get_workdir+0x328/0x16d0 fs/overlayfs/super.c:808
 ovl_fill_super+0x1608/0x3de0 fs/overlayfs/super.c:1381
 vfs_get_super fs/super.c:1286 [inline]
 get_tree_nodev+0xce/0x170 fs/super.c:1305
 ovl_get_tree+0x20/0x30 fs/overlayfs/params.c:632
 vfs_get_tree+0x9e/0x290 fs/super.c:1820
 do_new_mount+0x251/0xb30 fs/namespace.c:3567
 path_mount+0x682/0x1010 fs/namespace.c:3894
 do_mount fs/namespace.c:3907 [inline]
 __do_sys_mount fs/namespace.c:4117 [inline]
 __se_sys_mount+0x2bf/0x480 fs/namespace.c:4094
 __x64_sys_mount+0xc3/0xf0 fs/namespace.c:4094
 x64_sys_call+0x2021/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f6cac79ce59
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:00007f6cad698028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f6caca15fa0 RCX: 00007f6cac79ce59
RDX: 0000200000000b80 RSI: 0000200000000100 RDI: 0000000000000000
RBP: 00007f6cac832d6f R08: 0000200000000040 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6caca16038 R14: 00007f6caca15fa0 R15: 00007ffd021300d8
 </TASK>
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4095 at fs/dcache.c:774 fast_dput fs/dcache.c:774 [inline]
WARNING: CPU: 1 PID: 4095 at fs/dcache.c:774 dput+0x3cd/0x510 fs/dcache.c:851
Modules linked in:
CPU: 1 UID: 0 PID: 4095 Comm: syz.4.1210 Tainted: G        W          syzkaller #0 46888e5e5e1e1e111dd74017fc0802fda26c1cfc
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:fast_dput fs/dcache.c:774 [inline]
RIP: 0010:dput+0x3cd/0x510 fs/dcache.c:851
Code: 63 96 ff 48 b8 00 00 00 00 00 fc ff df 48 8b 4d d0 0f b6 04 01 84 c0 0f 85 21 01 00 00 80 0b 40 e9 a8 fe ff ff e8 d3 63 96 ff <0f> 0b e9 9c fe ff ff e8 c7 63 96 ff 48 89 df e8 2f 01 00 00 84 c0
RSP: 0018:ffffc900116574a8 EFLAGS: 00010246
RAX: ffffffff81f162fd RBX: ffff888123b44880 RCX: 0000000000080000
RDX: ffffc9000e44d000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900116574d8 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520022cae84 R12: 00000000ffffff80
R13: ffff888123b44904 R14: ffff888123b44900 R15: 1ffff11024768920
FS:  00007f6cad6986c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6cac7ea540 CR3: 000000011de8e000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 path_put+0x3d/0x70 fs/namei.c:568
 dentry_release+0x53/0xb0 fs/incfs/vfs.c:1587
 __dentry_kill+0x22e/0x5f0 fs/dcache.c:620
 dput+0x3f2/0x510 fs/dcache.c:857
 ovl_workdir_create+0x2ae/0x6f0 fs/overlayfs/super.c:304
 ovl_make_workdir fs/overlayfs/super.c:650 [inline]
 ovl_get_workdir+0x328/0x16d0 fs/overlayfs/super.c:808
 ovl_fill_super+0x1608/0x3de0 fs/overlayfs/super.c:1381
 vfs_get_super fs/super.c:1286 [inline]
 get_tree_nodev+0xce/0x170 fs/super.c:1305
 ovl_get_tree+0x20/0x30 fs/overlayfs/params.c:632
 vfs_get_tree+0x9e/0x290 fs/super.c:1820
 do_new_mount+0x251/0xb30 fs/namespace.c:3567
 path_mount+0x682/0x1010 fs/namespace.c:3894
 do_mount fs/namespace.c:3907 [inline]
 __do_sys_mount fs/namespace.c:4117 [inline]
 __se_sys_mount+0x2bf/0x480 fs/namespace.c:4094
 __x64_sys_mount+0xc3/0xf0 fs/namespace.c:4094
 x64_sys_call+0x2021/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f6cac79ce59
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:00007f6cad698028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f6caca15fa0 RCX: 00007f6cac79ce59
RDX: 0000200000000b80 RSI: 0000200000000100 RDI: 0000000000000000
RBP: 00007f6cac832d6f R08: 0000200000000040 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6caca16038 R14: 00007f6caca15fa0 R15: 00007ffd021300d8
 </TASK>
---[ end trace 0000000000000000 ]---
overlayfs: failed to create directory ./bus/work (errno: 17); mounting read-only
overlayfs: failed to get uuid (/file0, err=-95); falling back to uuid=null.