Public bug reported:
On Ubuntu 24.04.03 starting e.g. `true` with a custom argv[0] works:
```
ecordonnier@LBM9V6C4:~/dev/coreutils$ bash -c "exec -a foobar
/usr/lib/cargo/bin/coreutils/true"
foobar 0.0.24 (multi-call binary)
Usage: foobar [function [arguments...]]
Currently defined functions:
[, arch, b2sum, b3sum, base32, base64, basename, basenc, cat,
chcon, chgrp, chmod, chown,
chroot, cksum, comm, cp, csplit, cut, date, dd, df, dir,
dircolors, dirname, du, echo,
...
...
```
On Ubuntu 26.04 (development branch) it doesn't work:
```
asteba@asteba-MS-7C75:~$ /usr/lib/cargo/bin/coreutils/true --version
/usr/lib/cargo/bin/coreutils/true (uutils coreutils) 0.2.2
asteba@asteba-MS-7C75:~$ bash -c "exec -a foobar
/usr/lib/cargo/bin/coreutils/true"
Security violation: Requested utility `foobar` does not match executable name:
/usr/lib/cargo/bin/coreutils/true
```
It works with GNU coreutils however:
```
asteba@asteba-MS-7C75:~/dev$ bash -c "exec -a foobar /usr/bin/gnutrue"
asteba@asteba-MS-7C75:~/dev$
```
The error "Security Violation..." comes from a Ubuntu patch (
https://git.launchpad.net/ubuntu/+source/rust-
coreutils/tree/debian/patches/require-utility-to-be-invoked-at-matching-
path.patch?h=applied/ubuntu/devel ):
```
asteba@asteba-MS-7C75:~/dev/coreutils/ubuntu-sources$ rg -i "security
violation" .
./rust-coreutils-0.2.2/debian/patches/require-utility-to-be-invoked-at-matching-path.patch
27:+ "Security violation: Requested utility `{}` does not
match executable name:\n {}",
./rust-coreutils-0.2.2/src/bin/coreutils.rs
116: "Security violation: Requested utility `{}` does not
match executable name:\n {}",
```
@julian-klode FYI
** Affects: rust-coreutils (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2137745
Title:
Ubuntu patch prevents custom argv[0]
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