diff options
Diffstat (limited to 'meta/recipes-core/glibc/glibc/CVE-2019-19126.patch')
| -rw-r--r-- | meta/recipes-core/glibc/glibc/CVE-2019-19126.patch | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/meta/recipes-core/glibc/glibc/CVE-2019-19126.patch b/meta/recipes-core/glibc/glibc/CVE-2019-19126.patch deleted file mode 100644 index aead04c485..0000000000 --- a/meta/recipes-core/glibc/glibc/CVE-2019-19126.patch +++ /dev/null @@ -1,32 +0,0 @@ -From 37c90e117310728a4ad1eb998c0bbe7d79c4a398 Mon Sep 17 00:00:00 2001 -From: =?utf8?q?Marcin=20Ko=C5=9Bcielnicki?= <mwk@0x04.net> -Date: Thu, 21 Nov 2019 00:20:15 +0100 -Subject: [PATCH] rtld: Check __libc_enable_secure before honoring - LD_PREFER_MAP_32BIT_EXEC (CVE-2019-19126) [BZ #25204] - -The problem was introduced in glibc 2.23, in commit -b9eb92ab05204df772eb4929eccd018637c9f3e9 -("Add Prefer_MAP_32BIT_EXEC to map executable pages with MAP_32BIT"). - -(cherry picked from commit d5dfad4326fc683c813df1e37bbf5cf920591c8e) - -Upstream-Status: Backport [https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commit;h=37c90e117310728a4ad1eb998c0bbe7d79c4a398] -CVE: CVE-2019-19126 -Signed-off-by: Anuj Mittal <anuj.mittal@intel.com> ---- -diff --git a/sysdeps/unix/sysv/linux/x86_64/64/dl-librecon.h b/sysdeps/unix/sysv/linux/x86_64/64/dl-librecon.h -index 975cbe2..df2cdfd 100644 ---- a/sysdeps/unix/sysv/linux/x86_64/64/dl-librecon.h -+++ b/sysdeps/unix/sysv/linux/x86_64/64/dl-librecon.h -@@ -31,7 +31,8 @@ - environment variable, LD_PREFER_MAP_32BIT_EXEC. */ - #define EXTRA_LD_ENVVARS \ - case 21: \ -- if (memcmp (envline, "PREFER_MAP_32BIT_EXEC", 21) == 0) \ -+ if (!__libc_enable_secure \ -+ && memcmp (envline, "PREFER_MAP_32BIT_EXEC", 21) == 0) \ - GLRO(dl_x86_cpu_features).feature[index_arch_Prefer_MAP_32BIT_EXEC] \ - |= bit_arch_Prefer_MAP_32BIT_EXEC; \ - break; --- -2.9.3 |