openwrt/toolchain/musl/patches/031-fix-build-regression-in-i386-asm-for-atan2-atan2f.patch
Hauke Mehrtens b2cb6bb48a musl: Fix CVE-2019-14697
musl libc through 1.1.23 has an x87 floating-point stack adjustment
imbalance, related to the math/i386/ directory. In some cases, use of
this library could introduce out-of-bounds writes that are not present
in an application's source code.

This problem only affects x86 and no other architectures.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit c262daf308)
2019-08-18 23:59:23 +02:00

29 lines
727 B
Diff

From 6818c31c9bc4bbad5357f1de14bedf781e5b349e Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Mon, 5 Aug 2019 19:57:07 -0400
Subject: fix build regression in i386 asm for atan2, atan2f
commit f3ed8bfe8a82af1870ddc8696ed4cc1d5aa6b441 inadvertently removed
labels that were still needed.
---
src/math/i386/atan2.s | 2 +-
src/math/i386/atan2f.s | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/src/math/i386/atan2.s
+++ b/src/math/i386/atan2.s
@@ -11,4 +11,4 @@ atan2:
jae 1f
# subnormal x, return x with underflow
fsts 4(%esp)
- ret
+1: ret
--- a/src/math/i386/atan2f.s
+++ b/src/math/i386/atan2f.s
@@ -13,4 +13,4 @@ atan2f:
fld %st(0)
fmul %st(1)
fstps 4(%esp)
- ret
+1: ret