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@@ -0,0 +1,40 @@
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+From 67cc582d4289c5de521d11b08307c8ab26ee1e28 Mon Sep 17 00:00:00 2001
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+From: Denys Vlasenko <[email protected]>
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+Date: Sun, 3 Jan 2021 10:55:39 +0100
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+Subject: ash: make a strdup copy of $HISTFILE for line editing
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+
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+Otherwise if $HISTFILE is unset or reassigned, bad things can happen.
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+
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+function old new delta
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+ash_main 1210 1218 +8
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+
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+Signed-off-by: Denys Vlasenko <[email protected]>
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+---
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+ shell/ash.c | 4 ++--
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+ 1 file changed, 2 insertions(+), 2 deletions(-)
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+
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+diff --git a/shell/ash.c b/shell/ash.c
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+index f16d7fb6a..ecbfbf091 100644
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+--- a/shell/ash.c
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++++ b/shell/ash.c
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+@@ -14499,7 +14499,7 @@ int ash_main(int argc UNUSED_PARAM, char **argv)
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+
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+ if (sflag || minusc == NULL) {
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+ #if MAX_HISTORY > 0 && ENABLE_FEATURE_EDITING_SAVEHISTORY
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+- if (iflag) {
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++ if (line_input_state) {
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+ const char *hp = lookupvar("HISTFILE");
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+ if (!hp) {
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+ hp = lookupvar("HOME");
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+@@ -14513,7 +14513,7 @@ int ash_main(int argc UNUSED_PARAM, char **argv)
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+ }
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+ }
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+ if (hp)
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+- line_input_state->hist_file = hp;
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++ line_input_state->hist_file = xstrdup(hp);
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+ # if ENABLE_FEATURE_SH_HISTFILESIZE
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+ hp = lookupvar("HISTFILESIZE");
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+ line_input_state->max_history = size_from_HISTFILESIZE(hp);
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+--
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+cgit v1.2.1
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+
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