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sh: Fix use-after-free when attempting to modify a read-only variable.

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Reported by:	bapt
MFC after:	1 week
This commit is contained in:
Jilles Tjoelker 2015-12-16 20:33:47 +00:00
parent a2acf60284
commit d41b2be159
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=292360
1 changed files with 1 additions and 1 deletions
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2
bin/sh/var.c
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@ -330,7 +330,7 @@ setvareq(char *s, int flags)
if (vp->flags & VREADONLY) {
if ((flags & (VTEXTFIXED|VSTACK)) == 0)
ckfree(s);
error("%.*s: is read only", vp->name_len, s);
error("%.*s: is read only", vp->name_len, vp->text);
}
if (flags & VNOSET) {
if ((flags & (VTEXTFIXED|VSTACK)) == 0)