------------[ cut here ]------------
WARNING: CPU: 0 PID: 526 at fs/overlayfs/util.c:602 ovl_dir_version_inc fs/overlayfs/util.c:602 [inline]
WARNING: CPU: 0 PID: 526 at fs/overlayfs/util.c:602 ovl_dir_modified+0x15a/0x190 fs/overlayfs/util.c:620
Modules linked in:
CPU: 0 UID: 0 PID: 526 Comm: syz.1.46 Not tainted syzkaller #0 3aa8e93a75ec4fb080c21ea51d8727149e6cfac5
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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 be 54 99 ff 49 ff 06 5b 41 5c 41 5d 41 5e 41 5f 5d e9 3c d7 4b 03 cc e8 e6 1f 43 ff <0f> 0b e9 3e ff ff ff e8 da 1f 43 ff 0f 0b e9 6e ff ff ff 44 89 f9
RSP: 0018:ffffc9000cff7768 EFLAGS: 00010293
RAX: ffffffff8242c42a RBX: 0000000000000000 RCX: ffff888114279300
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000cff7790 R08: ffff88813247b71f R09: 1ffff1102648f6e3
R10: dffffc0000000000 R11: ffffed102648f6e4 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88813247b680 R15: ffff888112e35000
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556ca6a4a8 CR3: 000000010a340000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 ovl_remove_upper fs/overlayfs/dir.c:841 [inline]
 ovl_do_remove+0x7b8/0xcf0 fs/overlayfs/dir.c:912
 ovl_rmdir+0x1e/0x30 fs/overlayfs/dir.c:945
 vfs_rmdir+0x3dd/0x560 fs/namei.c:4340
 incfs_kill_sb+0x109/0x230 fs/incfs/vfs.c:1968
 deactivate_locked_super+0xd8/0x2a0 fs/super.c:476
 deactivate_super+0xb8/0xe0 fs/super.c:509
 cleanup_mnt+0x3f1/0x480 fs/namespace.c:1370
 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1377
 task_work_run+0x1e3/0x250 kernel/task_work.c:240
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0x9bc/0x2630 kernel/exit.c:953
 do_group_exit+0x22a/0x300 kernel/exit.c:1095
 get_signal+0x139d/0x14f0 kernel/signal.c:2933
 arch_do_signal_or_restart+0x96/0x720 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [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+0x58/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x64/0xf0 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fc7c7d8ebe9
Code: Unable to access opcode bytes at 0x7fc7c7d8ebbf.
RSP: 002b:00007fffc5fab798 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fc7c7fc5fa8 RCX: 00007fc7c7d8ebe9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc7c7fc5fa8
RBP: 0000000000000000 R08: 000000000000000f R09: 0000001ac5faba8f
R10: 00007fc7c7fc5fa0 R11: 0000000000000246 R12: 00007fc7c7fc5fac
R13: 00007fc7c7fc5fa0 R14: 00000000000010a4 R15: 0000000000000005
 </TASK>
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 526 at fs/overlayfs/util.c:602 ovl_dir_version_inc fs/overlayfs/util.c:602 [inline]
WARNING: CPU: 0 PID: 526 at fs/overlayfs/util.c:602 ovl_dir_modified+0x15a/0x190 fs/overlayfs/util.c:620
Modules linked in:
CPU: 0 UID: 0 PID: 526 Comm: syz.1.46 Tainted: G        W          syzkaller #0 3aa8e93a75ec4fb080c21ea51d8727149e6cfac5
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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 be 54 99 ff 49 ff 06 5b 41 5c 41 5d 41 5e 41 5f 5d e9 3c d7 4b 03 cc e8 e6 1f 43 ff <0f> 0b e9 3e ff ff ff e8 da 1f 43 ff 0f 0b e9 6e ff ff ff 44 89 f9
RSP: 0018:ffffc9000cff7768 EFLAGS: 00010293
RAX: ffffffff8242c42a RBX: 0000000000000000 RCX: ffff888114279300
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000cff7790 R08: ffff88813247b71f R09: 1ffff1102648f6e3
R10: dffffc0000000000 R11: ffffed102648f6e4 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88813247b680 R15: ffff888112e35000
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556ca6a4a8 CR3: 000000010a340000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 ovl_remove_upper fs/overlayfs/dir.c:841 [inline]
 ovl_do_remove+0x7b8/0xcf0 fs/overlayfs/dir.c:912
 ovl_rmdir+0x1e/0x30 fs/overlayfs/dir.c:945
 vfs_rmdir+0x3dd/0x560 fs/namei.c:4340
 incfs_kill_sb+0x1a0/0x230 fs/incfs/vfs.c:1972
 deactivate_locked_super+0xd8/0x2a0 fs/super.c:476
 deactivate_super+0xb8/0xe0 fs/super.c:509
 cleanup_mnt+0x3f1/0x480 fs/namespace.c:1370
 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1377
 task_work_run+0x1e3/0x250 kernel/task_work.c:240
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0x9bc/0x2630 kernel/exit.c:953
 do_group_exit+0x22a/0x300 kernel/exit.c:1095
 get_signal+0x139d/0x14f0 kernel/signal.c:2933
 arch_do_signal_or_restart+0x96/0x720 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [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+0x58/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x64/0xf0 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fc7c7d8ebe9
Code: Unable to access opcode bytes at 0x7fc7c7d8ebbf.
RSP: 002b:00007fffc5fab798 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fc7c7fc5fa8 RCX: 00007fc7c7d8ebe9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc7c7fc5fa8
RBP: 0000000000000000 R08: 000000000000000f R09: 0000001ac5faba8f
R10: 00007fc7c7fc5fa0 R11: 0000000000000246 R12: 00007fc7c7fc5fac
R13: 00007fc7c7fc5fa0 R14: 00000000000010a4 R15: 0000000000000005
 </TASK>
---[ end trace 0000000000000000 ]---