mirrors/aports
1
0
Fork 0
mirror of https://gitlab.alpinelinux.org/alpine/aports.git synced 2026-05-08 22:06:43 +02:00
Code Issues Packages Projects Releases Wiki Activity

main/zlib: fix crc32 on 64-bit systems

Browse Source 
thanks to sam@gentoo.org for pointing this out
This commit is contained in:
Ariadne Conill 2022-04-23 02:58:10 +00:00
parent f4bf4f1749
commit 6754a90055
2 changed files with 54 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
main/zlib/APKBUILD
View File

@ -1,7 +1,7 @@
# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
pkgname=zlib
pkgver=1.2.12
pkgrel=0
pkgrel=1
pkgdesc="A compression/decompression Library"
arch="all"
license="Zlib"
@ -10,6 +10,7 @@ subpackages="$pkgname-static $pkgname-dev $pkgname-doc"
source="https://zlib.net/zlib-$pkgver.tar.gz
Fix-CC-logic-in-configure.patch
configure-Pass-LDFLAGS-to-link-tests.patch
crc32.patch
"
# secfixes:
# 1.2.11-r4:
@ -39,4 +40,5 @@ sha512sums="
cc2366fa45d5dfee1f983c8c51515e0cff959b61471e2e8d24350dea22d3f6fcc50723615a911b046ffc95f51ba337d39ae402131a55e6d1541d3b095d6c0a14 zlib-1.2.12.tar.gz
faa19991e88cbfd624ac9ce4a0ba12e3d7d54f88680b1a0a156a542a45bafe2053d69c6f309327817f7cc74f5765204bbb3c56ff531efd29d8fd6bb682c78598 Fix-CC-logic-in-configure.patch
76179eb7e498aef5bc88c3f826c6f2506a2d3c3a2e2560ef1825bd4a9297d68b0d2390619a4b3b0b2e6dde765431e5fba18fd15fbd1ad99827244f8f9bdbd909 configure-Pass-LDFLAGS-to-link-tests.patch
38f0593a0bc17336d31191b7af684e31ec2eb34bd3add49bcb1f95c5e2bfb4405ffc341c2650d52c4fbf417ab4f80a0cc82fb868c9816b04d25210ae29a71f2c crc32.patch
"

51
main/zlib/crc32.patch Normal file
View File

@ -0,0 +1,51 @@
From ec3df00224d4b396e2ac6586ab5d25f673caa4c2 Mon Sep 17 00:00:00 2001
From: Mark Adler <madler@alumni.caltech.edu>
Date: Wed, 30 Mar 2022 11:14:53 -0700
Subject: [PATCH] Correct incorrect inputs provided to the CRC functions.
The previous releases of zlib were not sensitive to incorrect CRC
inputs with bits set above the low 32. This commit restores that
behavior, so that applications with such bugs will continue to
operate as before.
---
crc32.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/crc32.c b/crc32.c
index a1bdce5c2..451887bc7 100644
--- a/crc32.c
+++ b/crc32.c
@@ -630,7 +630,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
#endif /* DYNAMIC_CRC_TABLE */
/* Pre-condition the CRC */
- crc ^= 0xffffffff;
+ crc = (~crc) & 0xffffffff;
/* Compute the CRC up to a word boundary. */
while (len && ((z_size_t)buf & 7) != 0) {
@@ -749,7 +749,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
#endif /* DYNAMIC_CRC_TABLE */
/* Pre-condition the CRC */
- crc ^= 0xffffffff;
+ crc = (~crc) & 0xffffffff;
#ifdef W
@@ -1077,7 +1077,7 @@ uLong ZEXPORT crc32_combine64(crc1, crc2, len2)
#ifdef DYNAMIC_CRC_TABLE
once(&made, make_crc_table);
#endif /* DYNAMIC_CRC_TABLE */
- return multmodp(x2nmodp(len2, 3), crc1) ^ crc2;
+ return multmodp(x2nmodp(len2, 3), crc1) ^ (crc2 & 0xffffffff);
}
/* ========================================================================= */
@@ -1112,5 +1112,5 @@ uLong crc32_combine_op(crc1, crc2, op)
uLong crc2;
uLong op;
{
- return multmodp(op, crc1) ^ crc2;
+ return multmodp(op, crc1) ^ (crc2 & 0xffffffff);
}