Date: Thu, 07 May 2026 18:01:14 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 295086] /bin/sh undefined variable in heredoc triggers assertion Message-ID: <bug-295086-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=295086 Bug ID: 295086 Summary: /bin/sh undefined variable in heredoc triggers assertion Product: Base System Version: 15.0-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: editor@callfortesting.org More verbose: /bin/sh undefined variable reference inside of heredoc variable assignment inside command expansion triggers assertion This shell script triggers an assertion that probably should be caught by the pre-processor: #!/bin/sh set -u thing="$(cat << eol)" Hello! $_some_unset_variable eol Output test.sh: _some_unset_variable: parameter not set Unsafe ckmalloc() call Abort trap (core dumped) bin/sh/memalloc.c 62: badalloc("Unsafe ckmalloc() call\n"); Verified on 15.0R, 14.x AMD64, 15.1-BETA1 ARM64 Discovered by: Alexey Laurentsyeu Verified by: Hayzam S, Jan B, Michael D -- You are receiving this mail because: You are the assignee for the bug.home | help
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