[22.05] liblouis: apply patch for CVE-2022-26981

[lheckemann]

Fixes: CVE-2022-26981

Refs:
liblouis/liblouis#1185
GHSA-xrp8-mw8v-p6mq
https://nvd.nist.gov/vuln/detail/CVE-2022-26981

Things done

• Built on x86_64-linux
• Tested that the reproducer works
• TODO: verify that this really fixes the issue, since it didn't actually crash before the patch
• Fits CONTRIBUTING.md.

[risicle]

For reference, fixed in master here #177570

[risicle]

Confirmed this fixes the poc for me on linux x86_64.

[risicle]

nixpkgs-review happy, macos 10.15 & nixos x86_64. Builds, linux aarch64.

[github-actions]

Backport failed for release-21.11, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally.

git fetch origin release-21.11
git worktree add -d .worktree/backport-178230-to-release-21.11 origin/release-21.11
cd .worktree/backport-178230-to-release-21.11
git checkout -b backport-178230-to-release-21.11
ancref=$(git merge-base 3b0a83ac96ea540a857197e5d7f933ffda909a16 a4f5b169f1e40aba9fd2eedcc6ebba3e9f90645e)
git cherry-pick -x $ancref..a4f5b169f1e40aba9fd2eedcc6ebba3e9f90645e

[risicle]

Expected. I'll do it.

[risicle]

Hmmmmmm the commit right after it looks pretty critical too TBH liblouis/liblouis@2e4772b

[risicle]

Also liblouis/liblouis#1184

I wish people were consistent in declaring CVEs.