From 35b67b15652102203161beb31db786f09981de81 Mon Sep 17 00:00:00 2001 From: Benno Schulenberg Date: Thu, 24 Feb 2022 11:57:56 +0100 Subject: [PATCH 37/38] execute: don't crash when an empty buffer is piped through a command That is, take into account that the cutbuffer could be NULL (when updating the undo item). This fixes https://savannah.gnu.org/bugs/?62107. Bug existed since version 4.9, commit b15c5a7e. --- src/text.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/text.c b/src/text.c index 5ff5745d..c88ca516 100644 --- a/src/text.c +++ b/src/text.c @@ -1200,7 +1200,8 @@ void update_undo(undo_type action) else if (cutbuffer != NULL) { free_lines(u->cutbuffer); u->cutbuffer = copy_buffer(cutbuffer); - } + } else + break; if (!(u->xflags & MARK_WAS_SET)) { linestruct *bottomline = u->cutbuffer; size_t count = 0; -- 2.37.4