------------[ cut here ]------------ WARNING: CPU: 0 PID: 10807 at fs/overlayfs/util.c:602 ovl_dir_version_inc fs/overlayfs/util.c:602 [inline] WARNING: CPU: 0 PID: 10807 at fs/overlayfs/util.c:602 ovl_dir_modified+0x15a/0x190 fs/overlayfs/util.c:620 Modules linked in: CPU: 0 UID: 0 PID: 10807 Comm: syz-executor Not tainted syzkaller #0 0b5ffdee5fcd2f7749818d1ff954e9c21353764e Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 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 ae 48 99 ff 49 ff 06 5b 41 5c 41 5d 41 5e 41 5f 5d e9 cc 97 4c 03 cc e8 16 db 42 ff <0f> 0b e9 3e ff ff ff e8 0a db 42 ff 0f 0b e9 6e ff ff ff 44 89 f9 RSP: 0018:ffffc90004767988 EFLAGS: 00010293 RAX: ffffffff8243239a RBX: 0000000000000000 RCX: ffff88811d1db900 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900047679b0 R08: ffff888128a06c3f R09: 1ffff11025140d87 R10: dffffc0000000000 R11: ffffed1025140d88 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff888128a06ba0 R15: ffff8881107ba770 FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6829d18710 CR3: 00000000072a8000 CR4: 00000000003526b0 Call Trace: 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+0xd5/0x2a0 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+0x1e0/0x250 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 __do_sys_exit_group kernel/exit.c:1106 [inline] __se_sys_exit_group kernel/exit.c:1104 [inline] __x64_sys_exit_group+0x43/0x50 kernel/exit.c:1104 x64_sys_call+0x2ed2/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f6828f8f6c9 Code: Unable to access opcode bytes at 0x7f6828f8f69f. RSP: 002b:00007ffc6b428438 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f6829011d89 RCX: 00007f6828f8f6c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000009 R08: 00007ffc6b4261d7 R09: 00007ffc6b4296f0 R10: 0000000000000009 R11: 0000000000000246 R12: 00007ffc6b4296f0 R13: 00007f6829011d7d R14: 000000000003810b R15: 00007ffc6b42c9a0 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 10807 at fs/overlayfs/util.c:602 ovl_dir_version_inc fs/overlayfs/util.c:602 [inline] WARNING: CPU: 0 PID: 10807 at fs/overlayfs/util.c:602 ovl_dir_modified+0x15a/0x190 fs/overlayfs/util.c:620 Modules linked in: CPU: 0 UID: 0 PID: 10807 Comm: syz-executor Tainted: G W syzkaller #0 0b5ffdee5fcd2f7749818d1ff954e9c21353764e Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 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 ae 48 99 ff 49 ff 06 5b 41 5c 41 5d 41 5e 41 5f 5d e9 cc 97 4c 03 cc e8 16 db 42 ff <0f> 0b e9 3e ff ff ff e8 0a db 42 ff 0f 0b e9 6e ff ff ff 44 89 f9 RSP: 0018:ffffc90004767988 EFLAGS: 00010293 RAX: ffffffff8243239a RBX: 0000000000000000 RCX: ffff88811d1db900 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900047679b0 R08: ffff888128a06c3f R09: 1ffff11025140d87 R10: dffffc0000000000 R11: ffffed1025140d88 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff888128a06ba0 R15: ffff8881107ba770 FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6829d18710 CR3: 000000010bf60000 CR4: 00000000003526b0 Call Trace: 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+0xd5/0x2a0 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+0x1e0/0x250 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 __do_sys_exit_group kernel/exit.c:1106 [inline] __se_sys_exit_group kernel/exit.c:1104 [inline] __x64_sys_exit_group+0x43/0x50 kernel/exit.c:1104 x64_sys_call+0x2ed2/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f6828f8f6c9 Code: Unable to access opcode bytes at 0x7f6828f8f69f. RSP: 002b:00007ffc6b428438 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f6829011d89 RCX: 00007f6828f8f6c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000009 R08: 00007ffc6b4261d7 R09: 00007ffc6b4296f0 R10: 0000000000000009 R11: 0000000000000246 R12: 00007ffc6b4296f0 R13: 00007f6829011d7d R14: 000000000003810b R15: 00007ffc6b42c9a0 ---[ end trace 0000000000000000 ]---