Date: Sat, 22 Nov 2025 17:31:59 +0000 From: Jose Luis Duran <jlduran@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 57d25b633352 - main - nuageinit: Add guards against empty user data Message-ID: <6921f38f.9fe4.573c4df6@gitrepo.freebsd.org>
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The branch main has been updated by jlduran: URL: https://cgit.FreeBSD.org/src/commit/?id=57d25b6333523491ac7a3e869bd5d16127203eed commit 57d25b6333523491ac7a3e869bd5d16127203eed Author: Jose Luis Duran <jlduran@FreeBSD.org> AuthorDate: 2025-10-21 13:11:50 +0000 Commit: Jose Luis Duran <jlduran@FreeBSD.org> CommitDate: 2025-11-22 17:23:20 +0000 nuageinit: Add guards against empty user data Add guards against attempting to process a user data file with an empty first line or contents. PR: 290395 Reviewed by: bapt (earlier), dtxdf, markj MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D53239 --- libexec/nuageinit/nuageinit | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/libexec/nuageinit/nuageinit b/libexec/nuageinit/nuageinit index 0270da5c515b..a5411c60b410 100755 --- a/libexec/nuageinit/nuageinit +++ b/libexec/nuageinit/nuageinit @@ -663,8 +663,16 @@ if not f then os.exit(0) end local line = f:read("*l") +if not line or #string.gsub(line, "^%s*(.-)%s*$", "%1") == 0 then + f:close() + os.exit(0) +end if citype ~= "postnet" then local content = f:read("*a") + if not content or #string.gsub(content, "^%s*(.-)%s*$", "%1") == 0 then + f:close() + os.exit(0) + end nuage.mkdir_p(root .. "/var/cache/nuageinit") local tof = assert(io.open(root .. "/var/cache/nuageinit/user_data", "w")) tof:write(line .. "\n" .. content)help
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