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File _service:tar_scm:scanner-prevent-overflow-in-add_action.patch of Package flex
From 23882383d45dcd37b5177835c873f4e1d9582db1 Mon Sep 17 00:00:00 2001 From: Explorer09 <explorer09@gmail.com> Date: Fri, 13 Oct 2017 16:59:26 +0800 Subject: [PATCH] scanner: prevent overflow in add_action() --- src/misc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/src/misc.c b/src/misc.c index fa33a5b..745e6a8 100644 --- a/src/misc.c +++ b/src/misc.c @@ -116,15 +116,14 @@ void add_action (const char *new_text) int len = (int) strlen (new_text); while (len + action_index >= action_size - 10 /* slop */ ) { - int new_size = action_size * 2; - if (new_size <= 0) + if (action_size > INT_MAX / 2) /* Increase just a little, to try to avoid overflow * on 16-bit machines. */ action_size += action_size / 8; else - action_size = new_size; + action_size = action_size * 2; action_array = reallocate_character_array (action_array, -- 1.8.3.1
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