syzbot

EXT4-fs (loop0): mounted filesystem without journal. Opts: errors=remount-ro,nodiscard,noquota,jqfmt=vfsv0,noblock_validity,resgid=0x0000000000000000,sysvgroups,usrquota,usrquota,
ext4 filesystem being mounted at /file1 supports timestamps until 2038-01-19 (0x7fffffff)
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kernel BUG at fs/namei.c:2786!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 283 Comm: syz-executor122 Not tainted 5.10.237-syzkaller-00010-gcf6ed0f1511d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:may_delete+0x7b1/0x7c0 fs/namei.c:2786
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c dd fd ff ff 48 89 df e8 20 25 f5 ff e9 d0 fd ff ff e8 76 35 bb ff 0f 0b e8 6f 35 bb ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41 56 53
RSP: 0018:ffffc90000ae7b38 EFLAGS: 00010293
RAX: ffffffff81a85d01 RBX: ffff888120836bb0 RCX: ffff888105f813c0
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000ae7bb8 R08: 0000000000000004 R09: 0000000000000003
R10: fffff5200015cf4c R11: 1ffff9200015cf4c R12: ffff88811a836be8
R13: 1ffff11024106d76 R14: ffff888120836bc8 R15: ffff88811abfde00
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f21e49a5130 CR3: 000000000620f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_rmdir+0x2c/0x3e0 fs/namei.c:3833
 incfs_kill_sb+0xfe/0x210 fs/incfs/vfs.c:1973
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x446/0x500 fs/namespace.c:1118
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125
 task_work_run+0x127/0x190 kernel/task_work.c:189
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xa27/0x2470 kernel/exit.c:863
 do_group_exit+0x141/0x310 kernel/exit.c:985
 __do_sys_exit_group kernel/exit.c:996 [inline]
 __se_sys_exit_group kernel/exit.c:994 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:994
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f21e492af09
Code: Unable to access opcode bytes at RIP 0x7f21e492aedf.
RSP: 002b:00007ffd6cb52008 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f21e492af09
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f21e49a7370 R08: ffffffffffffffb8 R09: 0000000000000006
R10: 0000000000000147 R11: 0000000000000246 R12: 00007f21e49a7370
R13: 0000000000000000 R14: 00007f21e49a80e0 R15: 00007f21e48f91d0
Modules linked in:
---[ end trace 3b462034a4afe56d ]---
RIP: 0010:may_delete+0x7b1/0x7c0 fs/namei.c:2786
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c dd fd ff ff 48 89 df e8 20 25 f5 ff e9 d0 fd ff ff e8 76 35 bb ff 0f 0b e8 6f 35 bb ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41 56 53
RSP: 0018:ffffc90000ae7b38 EFLAGS: 00010293
RAX: ffffffff81a85d01 RBX: ffff888120836bb0 RCX: ffff888105f813c0
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000ae7bb8 R08: 0000000000000004 R09: 0000000000000003
R10: fffff5200015cf4c R11: 1ffff9200015cf4c R12: ffff88811a836be8
R13: 1ffff11024106d76 R14: ffff888120836bc8 R15: ffff88811abfde00
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f21e49a5130 CR3: 000000000620f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400