Public bug reported:
Redirection to an empty variable causes `dash` to exit abnormally via
SIGSEGV.
1) $ lsb_release -rd
Description: Ubuntu 16.04.5 LTS
Release: 16.04
2) $ apt-cache policy dash
dash:
Installed: 0.5.8-2.1ubuntu2
Candidate: 0.5.8-2.1ubuntu2
Version table:
*** 0.5.8-2.1ubuntu2 500
500 http://ua.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
100 /var/lib/dpkg/status
3) Script to reproduce:
$ cat test.sh
foobar() {
local a=$1
echo abc >&$a
}
foobar
4) Result:
$ dash ~/cloudlinux/kernelcare/test.sh
Segmentation fault (core dumped)
** Affects: dash (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1802149
Title:
redir to an empty variable
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