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authorV3n3RiX <venerix@redcorelinux.org>2017-12-01 03:04:39 +0000
committerV3n3RiX <venerix@redcorelinux.org>2017-12-01 03:04:39 +0000
commit407525b571b48cfd65e1ad7a02d250a927c967c9 (patch)
tree844bea44d85dc7218f54970af1c42cc9d55c3f1a /sys-libs/musl/files/musl-1.1.15-CVE.patch
parent89c6c06b8c42107dd231687a1012354e7d3039fc (diff)
gentoo resync : 01.12.2017
Diffstat (limited to 'sys-libs/musl/files/musl-1.1.15-CVE.patch')
-rw-r--r--sys-libs/musl/files/musl-1.1.15-CVE.patch68
1 files changed, 0 insertions, 68 deletions
diff --git a/sys-libs/musl/files/musl-1.1.15-CVE.patch b/sys-libs/musl/files/musl-1.1.15-CVE.patch
deleted file mode 100644
index 64fbbdcd8eb1..000000000000
--- a/sys-libs/musl/files/musl-1.1.15-CVE.patch
+++ /dev/null
@@ -1,68 +0,0 @@
-From c3edc06d1e1360f3570db9155d6b318ae0d0f0f7 Mon Sep 17 00:00:00 2001
-From: Rich Felker <dalias@aerifal.cx>
-Date: Thu, 06 Oct 2016 22:34:58 +0000
-Subject: fix missing integer overflow checks in regexec buffer size computations
-
-most of the possible overflows were already ruled out in practice by
-regcomp having already succeeded performing larger allocations.
-however at least the num_states*num_tags multiplication can clearly
-overflow in practice. for safety, check them all, and use the proper
-type, size_t, rather than int.
-
-also improve comments, use calloc in place of malloc+memset, and
-remove bogus casts.
----
-diff --git a/src/regex/regexec.c b/src/regex/regexec.c
-index 16c5d0a..dd52319 100644
---- a/src/regex/regexec.c
-+++ b/src/regex/regexec.c
-@@ -34,6 +34,7 @@
- #include <wchar.h>
- #include <wctype.h>
- #include <limits.h>
-+#include <stdint.h>
-
- #include <regex.h>
-
-@@ -206,11 +207,24 @@ tre_tnfa_run_parallel(const tre_tnfa_t *tnfa, const void *string,
-
- /* Allocate memory for temporary data required for matching. This needs to
- be done for every matching operation to be thread safe. This allocates
-- everything in a single large block from the stack frame using alloca()
-- or with malloc() if alloca is unavailable. */
-+ everything in a single large block with calloc(). */
- {
-- int tbytes, rbytes, pbytes, xbytes, total_bytes;
-+ size_t tbytes, rbytes, pbytes, xbytes, total_bytes;
- char *tmp_buf;
-+
-+ /* Ensure that tbytes and xbytes*num_states cannot overflow, and that
-+ * they don't contribute more than 1/8 of SIZE_MAX to total_bytes. */
-+ if (num_tags > SIZE_MAX/(8 * sizeof(int) * tnfa->num_states))
-+ goto error_exit;
-+
-+ /* Likewise check rbytes. */
-+ if (tnfa->num_states+1 > SIZE_MAX/(8 * sizeof(*reach_next)))
-+ goto error_exit;
-+
-+ /* Likewise check pbytes. */
-+ if (tnfa->num_states > SIZE_MAX/(8 * sizeof(*reach_pos)))
-+ goto error_exit;
-+
- /* Compute the length of the block we need. */
- tbytes = sizeof(*tmp_tags) * num_tags;
- rbytes = sizeof(*reach_next) * (tnfa->num_states + 1);
-@@ -221,10 +235,9 @@ tre_tnfa_run_parallel(const tre_tnfa_t *tnfa, const void *string,
- + (rbytes + xbytes * tnfa->num_states) * 2 + tbytes + pbytes;
-
- /* Allocate the memory. */
-- buf = xmalloc((unsigned)total_bytes);
-+ buf = calloc(total_bytes, 1);
- if (buf == NULL)
- return REG_ESPACE;
-- memset(buf, 0, (size_t)total_bytes);
-
- /* Get the various pointers within tmp_buf (properly aligned). */
- tmp_tags = (void *)buf;
---
-cgit v0.9.0.3-65-g4555