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From c4c5ed8f4e9cd55a12966d4f520e3a13101637d9 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Tue, 16 Jan 2024 13:48:32 -0800
Subject: [PATCH 1/1] split: do not shrink hold buffer
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit
* src/split.c (line_bytes_split): Do not shrink hold buffer.
If it’s large for this batch it’s likely to be large for the next
batch, and for ‘split’ it’s not worth the complexity/CPU hassle to
shrink it. Do not assume hold_size can be bufsize.
CVE: CVE-2024-0684
Upstream-Status: Backport [https://github.com/coreutils/coreutils/commit/c4c5ed8f4e9cd55a12966d4f520e3a13101637d9]
Signed-off-by: Simone Weiß <simone.p.weiss@posteo.com>
---
src/split.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/src/split.c b/src/split.c
index 64020c859..037960a59 100644
--- a/src/split.c
+++ b/src/split.c
@@ -809,10 +809,7 @@ line_bytes_split (intmax_t n_bytes, char *buf, idx_t bufsize)
{
cwrite (n_out == 0, hold, n_hold);
n_out += n_hold;
- if (n_hold > bufsize)
- hold = xirealloc (hold, bufsize);
n_hold = 0;
- hold_size = bufsize;
}
/* Output to eol if present. */
--
2.11.4.GIT
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