executing a script or elf-file on a mounted share result in I/O Error in ubuntu 22.04, works on 18.04 (other shares work)

[Günter Neiß]

The problem only exist with (all conditions must be true)
- Ubuntu 22.04.4 LTS
- kernel >= 6.5.0-14 (6.5.0-14 ist the oldes 6.5 I found in the repos)
- mounted share from a Fritz-Box (works on mount from another linux PC)

If I use kernel 6.2.0-39 (that's the newest Kernel before 6.5.0-14 in the repos) everything works.

I first think it was a Shebang Problem, but the I/O error happens althougth when trying to start an elf-file. If using a shell script, I can use a workaround (see below):

#################
> cat <mount-path>/t.sh
#!/usr/bin/env bash
echo "Hello bash"

> <mount-path>/t.sh
... I/O-Error ....
> bash <mount-path>/t.sh
Hello bash
#################

I coulnd find any problem on the Fritz-Box, the sniffs of the SMB messages seams to be OK.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-6.5.0-26-generic 6.5.0-26.26~22.04.1
ProcVersionSignature: Ubuntu 6.5.0-26.26~22.04.1-generic 6.5.13
Uname: Linux 6.5.0-26-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Fri Apr 5 20:04:51 2024
InstallationDate: Installed on 2023-02-28 (402 days ago)
InstallationMedia:

SourcePackage: linux-signed-hwe-6.5
UpgradeStatus: No upgrade log present (probably fresh install)