syzbot

ext4 filesystem being mounted at /file0 supports timestamps until (%ptR?) (0x7fffffff)
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kernel BUG at fs/namei.c:2894!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 361 Comm: syz-executor984 Not tainted 5.4.290-syzkaller-00002-g41adfeb3d639 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:may_delete+0x750/0x760 fs/namei.c:2894
Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c e8 fd ff ff 4c 89 e7 e8 31 0d f6 ff e9 db fd ff ff e8 07 23 c6 ff 0f 0b e8 00 23 c6 ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 56 53 48 89 fb
RSP: 0018:ffff8881ee627a68 EFLAGS: 00010293
RAX: ffffffff819e2800 RBX: ffff8881dd2ed238 RCX: ffff8881f30e3f00
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffff8881dd2ed9c0 R08: ffffffff819e2128 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881dd2ed220
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8881e9b78100
FS:  000055558f39c380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9dbca52130 CR3: 00000001ed874000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_rmdir+0x29/0x3c0 fs/namei.c:4008
 incfs_kill_sb+0x105/0x200 fs/incfs/vfs.c:1944
 deactivate_locked_super+0xa8/0x110 fs/super.c:335
 deactivate_super+0x1e2/0x2a0 fs/super.c:366
 cleanup_mnt+0x44e/0x500 fs/namespace.c:1102
 task_work_run+0x140/0x170 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xcaf/0x2bc0 kernel/exit.c:861
 do_group_exit+0x138/0x300 kernel/exit.c:984
 __do_sys_exit_group kernel/exit.c:995 [inline]
 __se_sys_exit_group kernel/exit.c:993 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:993
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f9dbc9d7c09
Code: Bad RIP value.
RSP: 002b:00007ffd16363208 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f9dbc9d7c09
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f9dbca542b0 R08: ffffffffffffffb8 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9dbca542b0
R13: 0000000000000000 R14: 00007f9dbca55020 R15: 00007f9dbc9a6150
Modules linked in:
---[ end trace 802acf0c210a14f1 ]---
RIP: 0010:may_delete+0x750/0x760 fs/namei.c:2894
Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c e8 fd ff ff 4c 89 e7 e8 31 0d f6 ff e9 db fd ff ff e8 07 23 c6 ff 0f 0b e8 00 23 c6 ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 56 53 48 89 fb
RSP: 0018:ffff8881ee627a68 EFLAGS: 00010293
RAX: ffffffff819e2800 RBX: ffff8881dd2ed238 RCX: ffff8881f30e3f00
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffff8881dd2ed9c0 R08: ffffffff819e2128 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881dd2ed220
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8881e9b78100
FS:  000055558f39c380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9dbc9d7bdf CR3: 00000001ed874000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400