When KASLR is enabled (CONFIG_RANDOMIZE_BASE=y), the top 4K of kernel virtual address space may be mapped to physical addresses despite being reserved for ERR_PTR values. Fix the randomization of the linear region so that we avoid mapping the last page of the virtual address space. Change-Id: I3035dbe8e64b2a31f5d56b7dc29366958adda6ce Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: liyueyi <liyueyi@live.com> [will: rewrote commit message; merged in suggestion from Ard] Signed-off-by: Will Deacon <will.deacon@arm.com> Git-commit: c8a43c18a97845e7f94ed7d181c11f41964976a2 Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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crypto | ||
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kernel | ||
kvm | ||
lib | ||
mm | ||
net | ||
xen | ||
Kconfig | ||
Kconfig.debug | ||
Kconfig.platforms | ||
Makefile |