diff options
Diffstat (limited to 'source/l/zlib')
| -rw-r--r-- | source/l/zlib/ec3df00224d4b396e2ac6586ab5d25f673caa4c2.patch | 51 | ||||
| -rwxr-xr-x | source/l/zlib/zlib.SlackBuild | 4 |
2 files changed, 54 insertions, 1 deletions
diff --git a/source/l/zlib/ec3df00224d4b396e2ac6586ab5d25f673caa4c2.patch b/source/l/zlib/ec3df00224d4b396e2ac6586ab5d25f673caa4c2.patch new file mode 100644 index 00000000..85a6a7e3 --- /dev/null +++ b/source/l/zlib/ec3df00224d4b396e2ac6586ab5d25f673caa4c2.patch @@ -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); + } diff --git a/source/l/zlib/zlib.SlackBuild b/source/l/zlib/zlib.SlackBuild index a7417d99..a3337583 100755 --- a/source/l/zlib/zlib.SlackBuild +++ b/source/l/zlib/zlib.SlackBuild @@ -24,7 +24,7 @@ cd $(dirname $0) ; CWD=$(pwd) PKGNAM=zlib VERSION=${VERSION:-$(echo $PKGNAM-*.tar.xz | rev | cut -f 3- -d . | cut -f 1 -d - | rev)} -BUILD=${BUILD:-1} +BUILD=${BUILD:-2} # Automatically determine the architecture we're building on: if [ -z "$ARCH" ]; then @@ -69,6 +69,8 @@ rm -rf zlib-$VERSION tar xvf $CWD/zlib-$VERSION.tar.xz || exit 1 cd zlib-$VERSION || exit 1 +cat $CWD/ec3df00224d4b396e2ac6586ab5d25f673caa4c2.patch | patch -p1 --verbose || exit 1 + chown -R root:root . find . \ \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \ |