From: Tim Kientzle <kientzle@acm.org>
Date: Sun, 13 Oct 2024 07:42:38 +0000 (-0700)
Subject: Ignore checksum mismatches when fuzzing tar archives (#2378)
X-Git-Tag: v3.8.0~138
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=971c043a1df850c9ccfc155c80c64b0673d7daa4;p=thirdparty%2Flibarchive.git

Ignore checksum mismatches when fuzzing tar archives (#2378)

This should speed up fuzzing just a bit, so we
can find more bugs!
---

diff --git a/libarchive/archive_read_support_format_tar.c b/libarchive/archive_read_support_format_tar.c
index a0ff8b1db..ecaf6c392 100644
--- a/libarchive/archive_read_support_format_tar.c
+++ b/libarchive/archive_read_support_format_tar.c
@@ -1005,7 +1005,12 @@ checksum(struct archive_read *a, const void *h)
 	if (sum == check)
 		return (1);
 
+#if DONT_FAIL_ON_CRC_ERROR
+	/* Speed up fuzzing by pretending the checksum is always right. */
+	return (1);
+#else
 	return (0);
+#endif
 }
 
 /*