aboutsummaryrefslogtreecommitdiffstats
path: root/meta/recipes-devtools/nasm/nasm/0001-Verify-that-we-are-not-reading-past-end-of-a-buffer.patch
diff options
context:
space:
mode:
Diffstat (limited to 'meta/recipes-devtools/nasm/nasm/0001-Verify-that-we-are-not-reading-past-end-of-a-buffer.patch')
-rw-r--r--meta/recipes-devtools/nasm/nasm/0001-Verify-that-we-are-not-reading-past-end-of-a-buffer.patch65
1 files changed, 0 insertions, 65 deletions
diff --git a/meta/recipes-devtools/nasm/nasm/0001-Verify-that-we-are-not-reading-past-end-of-a-buffer.patch b/meta/recipes-devtools/nasm/nasm/0001-Verify-that-we-are-not-reading-past-end-of-a-buffer.patch
deleted file mode 100644
index a56a08b5a8..0000000000
--- a/meta/recipes-devtools/nasm/nasm/0001-Verify-that-we-are-not-reading-past-end-of-a-buffer.patch
+++ /dev/null
@@ -1,65 +0,0 @@
-From c5785fdf1d660eaefb9711284414262d0cfe8843 Mon Sep 17 00:00:00 2001
-From: Adam Majer <amajer@suse.de>
-Date: Fri, 17 Aug 2018 14:48:17 +0800
-Subject: [PATCH] Verify that we are not reading past end of a buffer
-
-Simple reproducer is just,
-
- ret &d:ep
-
-which triggers a buffer overread due to parsing of an invalid
-segment override.
-
-Signed-off-by: Adam Majer <amajer@suse.de>
-
-Upstream-Status: Submitted [https://bugzilla.nasm.us/show_bug.cgi?id=3392447]
-CVE: CVE-2018-8883
-Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
----
- include/opflags.h | 2 +-
- include/tables.h | 1 +
- x86/regs.pl | 3 ++-
- 3 files changed, 4 insertions(+), 2 deletions(-)
-
-diff --git a/include/opflags.h b/include/opflags.h
-index ef2838c1..8d4b6b1e 100644
---- a/include/opflags.h
-+++ b/include/opflags.h
-@@ -166,7 +166,7 @@
- #define REG_CLASS_BND GEN_REG_CLASS(9)
-
- #define is_class(class, op) (!((opflags_t)(class) & ~(opflags_t)(op)))
--#define is_reg_class(class, reg) is_class((class), nasm_reg_flags[(reg)])
-+#define is_reg_class(class, reg) is_class((class), ((reg) < nasm_reg_flags_size ? nasm_reg_flags[(reg)] : 0))
-
- #define IS_SREG(reg) is_reg_class(REG_SREG, (reg))
- #define IS_FSGS(reg) is_reg_class(REG_FSGS, (reg))
-diff --git a/include/tables.h b/include/tables.h
-index 24a665e2..458752ce 100644
---- a/include/tables.h
-+++ b/include/tables.h
-@@ -64,6 +64,7 @@ extern const char * const nasm_reg_names[];
- typedef uint64_t opflags_t;
- typedef uint16_t decoflags_t;
- extern const opflags_t nasm_reg_flags[];
-+extern const size_t nasm_reg_flags_size;
- /* regvals.c */
- extern const int nasm_regvals[];
-
-diff --git a/x86/regs.pl b/x86/regs.pl
-index 3a1b56f5..cb5cea68 100755
---- a/x86/regs.pl
-+++ b/x86/regs.pl
-@@ -158,7 +158,8 @@ if ( $fmt eq 'h' ) {
- printf " %-15s /* %-5s */\n",
- $regs{$reg}.',', $reg;
- }
-- print "};\n";
-+ print "};\n\n";
-+ print "const size_t nasm_reg_flags_size = sizeof(nasm_reg_flags) / sizeof(opflags_t);\n";
- } elsif ( $fmt eq 'vc' ) {
- # Output regvals.c
- print "/* automatically generated from $file - do not edit */\n\n";
---
-2.17.1
-