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| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-06 13:54:09 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-06 13:54:09 -0800 |
| commit | 3e6bdf473f489664dac4d7511d26c7ac3dfdc748 (patch) | |
| tree | 10cb2e928830b9de8bbc3f6dd47c18c24cd2affa /init | |
| parent | 3d4d4582e5b3f67a68f2cf32fd5b70d8d80f119d (diff) | |
| parent | 58d5d0d8dd52cbca988af24b5692a20b00285543 (diff) | |
| download | linux-3e6bdf473f489664dac4d7511d26c7ac3dfdc748.tar.gz linux-3e6bdf473f489664dac4d7511d26c7ac3dfdc748.tar.bz2 linux-3e6bdf473f489664dac4d7511d26c7ac3dfdc748.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
x86: fix deadlock, make pgd_lock irq-safe
virtio: fix trivial build bug
x86: fix mttr trimming
x86: delay CPA self-test and repeat it
x86: fix 64-bit sections
generic: add __FINITDATA
x86: remove suprious ifdefs from pageattr.c
x86: mark the .rodata section also NX
x86: fix iret exception recovery on 64-bit
cpuidle: dubious one-bit signed bitfield in cpuidle.h
x86: fix sparse warnings in powernow-k8.c
x86: fix sparse error in traps_32.c
x86: trivial sparse/checkpatch in quirks.c
x86 ptrace: disallow null cs/ss
MAINTAINERS: RDC R-321x SoC maintainer
brk randomization: introduce CONFIG_COMPAT_BRK
brk: check the lower bound properly
x86: remove X2 workaround
x86: make spurious fault handler aware of large mappings
x86: make traps on entry code be debuggable in user space, 64-bit
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index 87f50df58893..92b23e256614 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -541,6 +541,18 @@ config ELF_CORE help Enable support for generating core dumps. Disabling saves about 4k. +config COMPAT_BRK + bool "Disable heap randomization" + default y + help + Randomizing heap placement makes heap exploits harder, but it + also breaks ancient binaries (including anything libc5 based). + This option changes the bootup default to heap randomization + disabled, and can be overriden runtime by setting + /proc/sys/kernel/randomize_va_space to 2. + + On non-ancient distros (post-2000 ones) Y is usually a safe choice. + config BASE_FULL default y bool "Enable full-sized data structures for core" if EMBEDDED |