1 files changed, 55 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/glibc/CVE-2018-11237.patch b/nixpkgs/pkgs/development/libraries/glibc/CVE-2018-11237.patch
new file mode 100644
index 000000000000..ffc2cec1d577
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/glibc/CVE-2018-11237.patch
@@ -0,0 +1,55 @@
+From f51c8367685dc888a02f7304c729ed5277904aff Mon Sep 17 00:00:00 2001
+From: Andreas Schwab <schwab@suse.de>
+Date: Thu, 24 May 2018 14:39:18 +0200
+Subject: [PATCH] Don't write beyond destination in
+ __mempcpy_avx512_no_vzeroupper (bug 23196)
+
+When compiled as mempcpy, the return value is the end of the destination
+buffer, thus it cannot be used to refer to the start of it.
+
+(cherry picked from commit 9aaaab7c6e4176e61c59b0a63c6ba906d875dc0e)
+---
+ ChangeLog                                               | 9 +++++++++
+ NEWS                                                    | 7 +++++++
+ string/test-mempcpy.c                                   | 1 +
+ sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S | 5 +++--
+ 4 files changed, 20 insertions(+), 2 deletions(-)
+
+diff --git a/string/test-mempcpy.c b/string/test-mempcpy.c
+index c08fba8..d98ecdd 100644
+--- a/string/test-mempcpy.c
++++ b/string/test-mempcpy.c
+@@ -18,6 +18,7 @@
+    <http://www.gnu.org/licenses/>.  */
+ 
+ #define MEMCPY_RESULT(dst, len) (dst) + (len)
++#define MIN_PAGE_SIZE 131072
+ #define TEST_MAIN
+ #define TEST_NAME "mempcpy"
+ #include "test-string.h"
+diff --git a/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S
+index 23c0f7a..effc3ac 100644
+--- a/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S
++++ b/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S
+@@ -336,6 +336,7 @@ L(preloop_large):
+ 	vmovups	(%rsi), %zmm4
+ 	vmovups	0x40(%rsi), %zmm5
+ 
++	mov	%rdi, %r11
+ /* Align destination for access with non-temporal stores in the loop.  */
+ 	mov	%rdi, %r8
+ 	and	$-0x80, %rdi
+@@ -366,8 +367,8 @@ L(gobble_256bytes_nt_loop):
+ 	cmp	$256, %rdx
+ 	ja	L(gobble_256bytes_nt_loop)
+ 	sfence
+-	vmovups	%zmm4, (%rax)
+-	vmovups	%zmm5, 0x40(%rax)
++	vmovups	%zmm4, (%r11)
++	vmovups	%zmm5, 0x40(%r11)
+ 	jmp	L(check)
+ 
+ L(preloop_large_bkw):
+-- 
+2.9.3
+