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42313: avoid null-pointer deref when using ${(PA)...} on an empty array result

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Joey Pabalinas 2018-01-23 22:28:08 -08:00 committed by Barton E. Schaefer
parent 47430bcd7c
commit 110b13e109
2 changed files with 6 additions and 1 deletions
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ChangeLog
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@ -1,3 +1,8 @@
2018-01-23 Barton E. Schaefer <schaefer@zsh.org>
* Joey Pabalinas: 42313: Src/subst.c: avoid null-pointer deref
when using ${(PA)...} on an empty array result
2018-01-23 Oliver Kiddle <okiddle@yahoo.co.uk>
* 42317: Completion/Linux/Command/_cryptsetup,

2
Src/subst.c
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@ -2430,7 +2430,7 @@ paramsubst(LinkList l, LinkNode n, char **str, int qt, int pf_flags,
val = aval[0];
isarr = 0;
}
s = dyncat(val, s);
s = val ? dyncat(val, s) : dupstring(s);
/* Now behave po-faced as if it was always like that... */
subexp = 0;
/*