------------[ cut here ]------------
WARNING: CPU: 1 PID: 621 at fs/overlayfs/util.c:602 ovl_dir_version_inc fs/overlayfs/util.c:602 [inline]
WARNING: CPU: 1 PID: 621 at fs/overlayfs/util.c:602 ovl_dir_modified+0x15a/0x190 fs/overlayfs/util.c:620
Modules linked in:
CPU: 1 UID: 0 PID: 621 Comm: syz.2.67 Not tainted syzkaller #0 d58365df94cd5f4886b4f3ec3f08a458f2157066
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:ovl_dir_version_inc fs/overlayfs/util.c:602 [inline]
RIP: 0010:ovl_dir_modified+0x15a/0x190 fs/overlayfs/util.c:620
Code: c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 0e 5d 97 ff 49 ff 06 5b 41 5c 41 5d 41 5e 41 5f 5d e9 bc 81 61 03 cc e8 36 d1 3e ff <0f> 0b e9 3e ff ff ff e8 2a d1 3e ff 0f 0b e9 6e ff ff ff 44 89 f9
RSP: 0018:ffffc9000d9e7b48 EFLAGS: 00010283
RAX: ffffffff8248f26a RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc90002244000 RSI: 0000000000002800 RDI: 0000000000002801
RBP: ffffc9000d9e7b70 R08: ffff88811cd540bf R09: 1ffff110239aa817
R10: dffffc0000000000 R11: ffffed10239aa818 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88811cd54020 R15: ffff888113bf0990
FS:  00007fd90b7c26c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000117a1e000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 ovl_remove_upper fs/overlayfs/dir.c:841 [inline]
 ovl_do_remove+0x81b/0xda0 fs/overlayfs/dir.c:912
 ovl_rmdir+0x1e/0x30 fs/overlayfs/dir.c:945
 vfs_rmdir+0x3e0/0x560 fs/namei.c:4348
 incfs_kill_sb+0x109/0x230 fs/incfs/vfs.c:1968
 deactivate_locked_super+0xd8/0x2a0 fs/super.c:478
 deactivate_super+0xb8/0xe0 fs/super.c:511
 cleanup_mnt+0x406/0x4a0 fs/namespace.c:1380
 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fd90a99ce59
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:00007fd90b7c2028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffec RBX: 00007fd90ac15fa0 RCX: 00007fd90a99ce59
RDX: 0000200000000840 RSI: 0000200000000800 RDI: 00002000000007c0
RBP: 00007fd90aa32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000001004002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd90ac16038 R14: 00007fd90ac15fa0 R15: 00007ffdb994a188
 </TASK>
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 621 at fs/overlayfs/util.c:602 ovl_dir_version_inc fs/overlayfs/util.c:602 [inline]
WARNING: CPU: 0 PID: 621 at fs/overlayfs/util.c:602 ovl_dir_modified+0x15a/0x190 fs/overlayfs/util.c:620
Modules linked in:
CPU: 0 UID: 0 PID: 621 Comm: syz.2.67 Tainted: G        W          syzkaller #0 d58365df94cd5f4886b4f3ec3f08a458f2157066
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:ovl_dir_version_inc fs/overlayfs/util.c:602 [inline]
RIP: 0010:ovl_dir_modified+0x15a/0x190 fs/overlayfs/util.c:620
Code: c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 0e 5d 97 ff 49 ff 06 5b 41 5c 41 5d 41 5e 41 5f 5d e9 bc 81 61 03 cc e8 36 d1 3e ff <0f> 0b e9 3e ff ff ff e8 2a d1 3e ff 0f 0b e9 6e ff ff ff 44 89 f9
RSP: 0018:ffffc9000d9e7b48 EFLAGS: 00010283
RAX: ffffffff8248f26a RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc90002244000 RSI: 000000000004cd8b RDI: 000000000004cd8c
RBP: ffffc9000d9e7b70 R08: ffff88811cd540bf R09: 1ffff110239aa817
R10: dffffc0000000000 R11: ffffed10239aa818 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88811cd54020 R15: ffff888113bf0990
FS:  00007fd90b7c26c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd90a985fc0 CR3: 0000000117a1e000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 ovl_remove_upper fs/overlayfs/dir.c:841 [inline]
 ovl_do_remove+0x81b/0xda0 fs/overlayfs/dir.c:912
 ovl_rmdir+0x1e/0x30 fs/overlayfs/dir.c:945
 vfs_rmdir+0x3e0/0x560 fs/namei.c:4348
 incfs_kill_sb+0x1a0/0x230 fs/incfs/vfs.c:1972
 deactivate_locked_super+0xd8/0x2a0 fs/super.c:478
 deactivate_super+0xb8/0xe0 fs/super.c:511
 cleanup_mnt+0x406/0x4a0 fs/namespace.c:1380
 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fd90a99ce59
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:00007fd90b7c2028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffec RBX: 00007fd90ac15fa0 RCX: 00007fd90a99ce59
RDX: 0000200000000840 RSI: 0000200000000800 RDI: 00002000000007c0
RBP: 00007fd90aa32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000001004002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd90ac16038 R14: 00007fd90ac15fa0 R15: 00007ffdb994a188
 </TASK>
---[ end trace 0000000000000000 ]---