The patch titled
Subject: mm-mmap-allow-for-the-maximum-number-of-bits-for-randomizing-mmap_base-by-default-fix
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
mm-mmap-allow-for-the-maximum-number-of-bits-for-randomizing-mmap_base-by-default-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-mmap-allow-for-the-maximum-number-of-bits-for-randomizing-mmap_base-by-default-fix.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm-mmap-allow-for-the-maximum-number-of-bits-for-randomizing-mmap_base-by-default-fix
Date: Tue Jun 11 07:39:46 PM PDT 2024
default to `y' if 32-bit, per Rafael
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Heiko Carstens <hca@xxxxxxxxxxxxx>
Cc: Mike Rapoport (IBM) <rppt@xxxxxxxxxx>
Cc: Paul E. McKenney <paulmck@xxxxxxxxxx>
Cc: Petr Mladek <pmladek@xxxxxxxx>
Cc: Rafael Aquini <aquini@xxxxxxxxxx>
Cc: Samuel Holland <samuel.holland@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/Kconfig~mm-mmap-allow-for-the-maximum-number-of-bits-for-randomizing-mmap_base-by-default-fix
+++ a/arch/Kconfig
@@ -1048,7 +1048,7 @@ config ARCH_MMAP_RND_BITS_DEFAULT
config FORCE_MAX_MMAP_RND_BITS
bool "Force maximum number of bits to use for ASLR of mmap base address"
- default n
+ default y if !64BIT
help
ARCH_MMAP_RND_BITS and ARCH_MMAP_RND_COMPAT_BITS represent the number
of bits to use for ASLR and if no custom value is assigned (EXPERT)
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
mm-mmap-allow-for-the-maximum-number-of-bits-for-randomizing-mmap_base-by-default-fix.patch
writeback-factor-out-balance_wb_limits-to-remove-repeated-code-v3-fix.patch
mm-allow-reuse-of-the-lower-16-bit-of-the-page-type-with-an-actual-type-fix.patch
mm-shmem-add-multi-size-thp-sysfs-interface-for-anonymous-shmem-fix-fix.patch
