DivestOS/Patches/LineageOS-14.1/android_frameworks_av/0001-HM-No_RLIMIT_AS.patch
Tavi 0c88720caa
14.1: work on integrating hardened_malloc
untested as all currently supported 14.1 devices are 32-bit

Signed-off-by: Tavi <tavi@divested.dev>
2024-05-09 13:46:19 -04:00

34 lines
1.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 5 Dec 2018 09:29:25 -0500
Subject: [PATCH] avoid setting RLIMIT_AS with hardened malloc
This needs to be ported to a better mechanism like memory control groups
in order to remain compatible with hardening mechanisms based on large
PROT_NONE address space reservations.
Change-Id: Ibfb7164d764fcb9244055953bedc9a1c424cedcb
---
media/libmedia/MediaUtils.cpp | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/media/libmedia/MediaUtils.cpp b/media/libmedia/MediaUtils.cpp
index a02ca65a7a..bb93e3d27f 100644
--- a/media/libmedia/MediaUtils.cpp
+++ b/media/libmedia/MediaUtils.cpp
@@ -31,6 +31,14 @@ void limitProcessMemory(
size_t numberOfBytes,
size_t percentageOfTotalMem) {
+#ifdef __LP64__
+ // This needs to be ported to a better mechanism like memory control groups
+ // in order to remain compatible with hardening mechanisms based on large
+ // PROT_NONE address space reservations.
+ ALOGW("Running with hardened malloc implementation, skip enforcing memory limitations.");
+ return;
+#endif
+
long pageSize = sysconf(_SC_PAGESIZE);
long numPages = sysconf(_SC_PHYS_PAGES);
size_t maxMem = SIZE_MAX;