------------[ cut here ]------------ WARNING: CPU: 1 PID: 296 at fs/overlayfs/util.c:605 ovl_dir_version_inc fs/overlayfs/util.c:605 [inline] WARNING: CPU: 1 PID: 296 at fs/overlayfs/util.c:605 ovl_dir_modified+0x15a/0x190 fs/overlayfs/util.c:623 Modules linked in: CPU: 1 UID: 0 PID: 296 Comm: syz-executor Not tainted syzkaller #0 ed123329535d3916c4d79d0d059a7ed982e746fc Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 RIP: 0010:ovl_dir_version_inc fs/overlayfs/util.c:605 [inline] RIP: 0010:ovl_dir_modified+0x15a/0x190 fs/overlayfs/util.c:623 Code: c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 ae 83 97 ff 49 ff 06 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 36 d0 3e ff <0f> 0b e9 3e ff ff ff e8 2a d0 3e ff 0f 0b e9 6e ff ff ff 44 89 f9 RSP: 0018:ffffc9000b64fb88 EFLAGS: 00010293 RAX: ffffffff8248a1ba RBX: 0000000000000000 RCX: ffff888102f24c00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000b64fbb0 R08: ffff88811d6b615f R09: 1ffff11023ad6c2b R10: dffffc0000000000 R11: ffffed1023ad6c2c R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88811d6b60c0 R15: ffff88811d567330 FS: 000055555a49f500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555a4ba918 CR3: 00000001278fe000 CR4: 00000000003526b0 Call Trace: ovl_remove_upper fs/overlayfs/dir.c:841 [inline] ovl_do_remove+0x824/0xd10 fs/overlayfs/dir.c:912 ovl_rmdir+0x1e/0x30 fs/overlayfs/dir.c:945 vfs_rmdir+0x3db/0x560 fs/namei.c:4348 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1968 deactivate_locked_super+0xd2/0x270 fs/super.c:478 deactivate_super+0xb8/0xe0 fs/super.c:511 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387 task_work_run+0x1e8/0x260 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: 0033:0x7ff47b99f097 Code: a2 c7 05 5c 26 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd8ad95718 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007ff47ba332ca RCX: 00007ff47b99f097 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd8ad957d0 RBP: 00007ffd8ad957d0 R08: 00007ffd8ad967d0 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd8ad96860 R13: 00007ff47ba332ca R14: 000000000000c18e R15: 00007ffd8ad968a0 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 296 at fs/overlayfs/util.c:605 ovl_dir_version_inc fs/overlayfs/util.c:605 [inline] WARNING: CPU: 0 PID: 296 at fs/overlayfs/util.c:605 ovl_dir_modified+0x15a/0x190 fs/overlayfs/util.c:623 Modules linked in: CPU: 0 UID: 0 PID: 296 Comm: syz-executor Tainted: G W syzkaller #0 ed123329535d3916c4d79d0d059a7ed982e746fc Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 RIP: 0010:ovl_dir_version_inc fs/overlayfs/util.c:605 [inline] RIP: 0010:ovl_dir_modified+0x15a/0x190 fs/overlayfs/util.c:623 Code: c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 ae 83 97 ff 49 ff 06 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 36 d0 3e ff <0f> 0b e9 3e ff ff ff e8 2a d0 3e ff 0f 0b e9 6e ff ff ff 44 89 f9 RSP: 0018:ffffc9000b64fb88 EFLAGS: 00010293 RAX: ffffffff8248a1ba RBX: 0000000000000000 RCX: ffff888102f24c00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000b64fbb0 R08: ffff88811d6b615f R09: 1ffff11023ad6c2b R10: dffffc0000000000 R11: ffffed1023ad6c2c R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88811d6b60c0 R15: ffff88811d567330 FS: 000055555a49f500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555586b95918 CR3: 00000001278fe000 CR4: 00000000003526b0 DR0: 0000000000000001 DR1: 0000000000000009 DR2: 0000000000000101 DR3: 0000000000000007 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: ovl_remove_upper fs/overlayfs/dir.c:841 [inline] ovl_do_remove+0x824/0xd10 fs/overlayfs/dir.c:912 ovl_rmdir+0x1e/0x30 fs/overlayfs/dir.c:945 vfs_rmdir+0x3db/0x560 fs/namei.c:4348 incfs_kill_sb+0x197/0x220 fs/incfs/vfs.c:1972 deactivate_locked_super+0xd2/0x270 fs/super.c:478 deactivate_super+0xb8/0xe0 fs/super.c:511 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387 task_work_run+0x1e8/0x260 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: 0033:0x7ff47b99f097 Code: a2 c7 05 5c 26 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd8ad95718 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007ff47ba332ca RCX: 00007ff47b99f097 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd8ad957d0 RBP: 00007ffd8ad957d0 R08: 00007ffd8ad967d0 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd8ad96860 R13: 00007ff47ba332ca R14: 000000000000c18e R15: 00007ffd8ad968a0 ---[ end trace 0000000000000000 ]---