libarchive: update to 3.1.2-8

1 files changed, 32 insertions, 0 deletions

diff --git a/abs/core/libarchive/0001-Limit-write-requests-to-at-most-INT_MAX.patch b/abs/core/libarchive/0001-Limit-write-requests-to-at-most-INT_MAX.patch
new file mode 100644
index 0000000..c805ce1
--- /dev/null
+++ b/abs/core/libarchive/0001-Limit-write-requests-to-at-most-INT_MAX.patch
@@ -0,0 +1,32 @@
+From 22531545514043e04633e1c015c7540b9de9dbe4 Mon Sep 17 00:00:00 2001
+From: Tim Kientzle <kientzle@acm.org>
+Date: Fri, 22 Mar 2013 23:48:41 -0700
+Subject: [PATCH] Limit write requests to at most INT_MAX. This prevents a
+ certain common programming error (passing -1 to write) from leading to other
+ problems deeper in the library.
+
+---
+ libarchive/archive_write.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/libarchive/archive_write.c b/libarchive/archive_write.c
+index eede5e0..be85621 100644
+--- a/libarchive/archive_write.c
++++ b/libarchive/archive_write.c
+@@ -673,8 +673,13 @@ static ssize_t
+ _archive_write_data(struct archive *_a, const void *buff, size_t s)
+ {
+ 	struct archive_write *a = (struct archive_write *)_a;
++	const size_t max_write = INT_MAX;
++
+ 	archive_check_magic(&a->archive, ARCHIVE_WRITE_MAGIC,
+ 	    ARCHIVE_STATE_DATA, "archive_write_data");
++	/* In particular, this catches attempts to pass negative values. */
++	if (s > max_write)
++		s = max_write;
+ 	archive_clear_error(&a->archive);
+ 	return ((a->format_write_data)(a, buff, s));
+ }
+-- 
+1.9.0
+