syzbot

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bad length passed for symlink [/tmp/syz-imagegen2884317625/] (got 39, expected 29)
WARNING: CPU: 1 PID: 5838 at ./include/linux/fs.h:802 inode_set_cached_link include/linux/fs.h:802 [inline]
WARNING: CPU: 1 PID: 5838 at ./include/linux/fs.h:802 __ext4_iget+0x3aa2/0x4310 fs/ext4/inode.c:5012
Modules linked in:
CPU: 1 UID: 0 PID: 5838 Comm: syz-executor Not tainted 6.14.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:inode_set_cached_link include/linux/fs.h:802 [inline]
RIP: 0010:__ext4_iget+0x3aa2/0x4310 fs/ext4/inode.c:5012
Code: e8 63 07 49 ff c6 05 38 27 da 0d 01 90 8b 95 10 ff ff ff 44 89 e1 48 c7 c7 40 5b 85 8b 48 8b b5 f8 fe ff ff e8 3f 38 09 ff 90 <0f> 0b 90 90 e9 2d fd ff ff e8 d0 45 ab ff e9 f6 e6 ff ff e8 a6 44
RSP: 0018:ffffc9000409f810 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888031623e2c RCX: ffffffff817a2269
RDX: ffff888076909e00 RSI: ffffffff817a2276 RDI: 0000000000000001
RBP: ffffc9000409f960 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 000000000000001d
R13: 0000000000000000 R14: 0000000000002000 R15: ffff888031623e20
FS:  0000555585b49500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30510ff8 CR3: 000000005bcc4000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ext4_lookup+0x37e/0x730 fs/ext4/namei.c:1813
 __lookup_slow+0x252/0x470 fs/namei.c:1793
 lookup_slow fs/namei.c:1810 [inline]
 walk_component+0x350/0x5b0 fs/namei.c:2114
 lookup_last fs/namei.c:2612 [inline]
 path_lookupat+0x17f/0x770 fs/namei.c:2636
 filename_lookup+0x221/0x5f0 fs/namei.c:2665
 user_path_at+0x3a/0x60 fs/namei.c:3072
 ksys_umount fs/namespace.c:2071 [inline]
 __do_sys_umount fs/namespace.c:2079 [inline]
 __se_sys_umount fs/namespace.c:2077 [inline]
 __x64_sys_umount+0x10b/0x1a0 fs/namespace.c:2077
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc99918e497
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 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 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffec2905148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 00007fc99920e08c RCX: 00007fc99918e497
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffec2905200
RBP: 00007ffec2905200 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffec29062f0
R13: 00007fc99920e08c R14: 0000000000051640 R15: 00007ffec29084b0
 </TASK>