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-rw-r--r--shell/ash.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/shell/ash.c b/shell/ash.c
index 9d55f89..ec5e0b8 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -5425,7 +5425,11 @@ rmescapes(char *str, int flag)
size_t fulllen = len + strlen(p) + 1;
if (flag & RMESCAPE_GROW) {
+ int strloc = str - (char *)stackblock();
r = makestrspace(fulllen, expdest);
+ /* p and str may be invalidated by makestrspace */
+ str = (char *)stackblock() + strloc;
+ p = str + len;
} else if (flag & RMESCAPE_HEAP) {
r = ckmalloc(fulllen);
} else {