2024 Randomize the module region over a 4 gb range

Randomize the module region over a 4 gb range

Author: fgdv

August undefined, 2024

Webb26 jan. 2016 · - Randomize the module region independently from the core kernel. It is chosen such that it covers the [_stext, _etext] interval of the core kernel to avoid using PLT entries unless we really have to. - Update the module PLT patch to replace the O (n^2) searches with sorting, and use a single .plt section for __init and ordinary code. Webb31 juli 2024 · - Randomizes the location of the module region inside a 4 GB window + Randomizes the location of the module region inside a 2 GB window covering the core …

[PATCH v2] arm64: fix the doc of …

Webb16 nov. 2024 · Sorted by: 1. Below is an example for generation of integers in range [0 : 1023] with uniform (even) distribution. Note that the floor operation must be used after … WebbOn Fri, Jul 30, 2024 at 10:50:56PM +1200, Barry Song wrote: > Obviously kaslr is setting the module region to 2GB rather than 4GB since > commit b2eed9b588112 ("arm64/kernel: kaslr: reduce module randomization > range to 2 GB"). > On the other hand, module_alloc() can fall back to a 2GB window even though > RANDOMIZE_MODULE_REGION_FULL is … pchi hearing

Re: [PATCH v2] arm64: fix the doc of RANDOMIZE_MODULE_REGION…

WebbRandomizes the location of the module region inside a 4 GB window covering the core kernel. This way, it is less likely for modules to leak information about the location of … WebbOn Sat, 31 Jul 2024 00:51:31 +1200 Barry Song wrote: > Obviously kaslr is setting the module region to 2GB rather than 4GB since > commit … WebbOn Sat, 31 Jul 2024 00:51:31 +1200 Barry Song wrote: > Obviously kaslr is setting the module region to 2GB rather than 4GB since > commit b2eed9b588112 ("arm64/kernel: kaslr: reduce module randomization > range to 2 GB"). So fix the size of region in Kconfig. > On the other hand, even though … scrounge black and silver traveller\\u0027s pouch

LKML: Will Deacon: Re: [PATCH] arm64: update RANDOMIZE_MODULE_REGION …

Webb> - Randomizes the location of the module region inside a 4 GB window > + Randomizes the location of the module region inside a 2 GB window > covering the core kernel. This … Webb23 nov. 2024 · > @@ -1804,11 +1804,11 @@ config RANDOMIZE_BASE > If unsure, say N. > > config RANDOMIZE_MODULE_REGION_FULL > - bool "Randomize the module region over a 4 GB range" > + bool "Randomize the module region over a 2 GB range" > depends on RANDOMIZE_BASE > default y > help > - Randomizes the location of the module region … scrounge around shop lakeland flWebbThis way, it is less likely for modules to leak information about the location of core kernel data structures but it does imply that function calls between modules and the core @@ -1812,7 +1812,10 @@ config RANDOMIZE_MODULE_REGION_FULL When this option is not set, the module region will be randomized over a limited range that contains the [_stext, … scrounge black and silver traveller\u0027s pouch

"Webb+ Randomizes the location of the module region without considering the + location of the core kernel. This way, it is impossible for modules + to leak information about the … " - Randomize the module region over a 4 gb range

Randomize the module region over a 4 gb range

Re: [PATCH RFC] arm64/vmalloc: use module region only for module…

WebbIn the 5.1.5 Kernel RANDOMIZE_MODULE_REGION_FULL was a 4GB window, however this was changed to 2GB from 5.1.6 (see /arch/arm64/kernel/kaslr.c). This updates the … WebbThis way, it is less likely for modules to leak information about the location of core kernel data structures but it does imply that function calls between modules and the core @@ -1812,7 +1812,8 @@ config RANDOMIZE_MODULE_REGION_FULL When this option is not set, the module region will be randomized over a limited range that contains the [_stext, …

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Webb29 maj 2024 · Since we randomize the module space over a 4 GB window covering the core kernel (based on the -/+ 4 GB range of an ADRP/ADD pair), we may end up putting the … WebbLinux Kernel: [PATCH] arm64: update RANDOMIZE_MODULE_REGION_FULL config description [PATCH] arm64: update ... say N. config …

Webb21 nov. 2024 · config RANDOMIZE_MODULE_REGION_FULL - bool "Randomize the module region over a 4 GB range" + bool "Randomize the module region over a 2 GB range" … WebbThis way, it is less likely for modules > to leak information about the location of core kernel data structures > but it does imply that function calls between modules and the core …

WebbSigned-off-by: youngjun --- arch/arm64/Kconfig 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/Kconfig … WebbThis way, it is less likely for modules > to leak information about the location of core kernel data structures > but it does imply that function calls between modules and the core > kernel will need to be resolved via veneers in the module PLT. > > When this option is not set, the module region will be randomized over > a limited range that contains the …

Webb29 maj 2024 · Since we randomize the module space over a 4 GB window covering the core kernel (based on the -/+ 4 GB range of an ADRP/ADD pair), we may end up putting the core kernel out of the -/+ 2 GB range of 32-bit relative references of module ksymtab entries that refer to per-CPU variables. So reduce the module randomization range a bit …

Webb*PATCH RFC] arm64/vmalloc: use module region only for module_alloc() if CONFIG_RANDOMIZE_BASE is set @ 2024-12-27 9:26 ` Liu Shixin 0 siblings, 0 replies; 28+ messages in thread From: Liu Shixin @ 2024-12-27 9:26 UTC (permalink / raw) To: Catalin Marinas, Will Deacon, Andrew Morton, Uladzislau Rezki, Christoph Hellwig Cc: linux-arm … pc hightRandomizes the location of the module region inside a 4 GB window covering the core kernel. This way, it is less likely for modules to leak information about the location of core kernel data structures but it does imply that function calls between modules and the core kernel will need to be resolved via veneers in … Visa mer The configuration item CONFIG_RANDOMIZE_MODULE_REGION_FULL: 1. prompt: Randomize the module region over a 2 GB range 2. type: bool 3. depends … Visa mer The configuration item CONFIG_RANDOMIZE_MODULE_REGION_FULL: 1. prompt: Randomize the module region over a 4 GB range 2. type: bool 3. depends … Visa mer This page is automaticly generated with free (libre, open) softwarelkddb(see lkddb-sources). The data is retrived from: 1. Linux kernel 2. Linux Kernel Driver … Visa mer scrounge borrowWebbRELOCATABLE Build a relocatable kernel image RANDOMIZE_BASE Randomize the address of the kernel image RANDOMIZE_MODULE_REGION_FULL Randomize the module region over a 4 GB range Menu [Boot options] ARM64_ACPI_PARKING_PROTOCOL Enable support for the ARM64 ACPI parking protocol CMDLINE Default kernel command string pc high teaWebbFor example, the variable data from the code snippet above has a range from 0 -> 3. If this variable is randomized without any constraints, then any value in this range will be assigned to the variable, but for successive randomization the same value will repeat only after all the values have been assigned atleast once. scrounge ks-ks.bacaworld.org scrounge boxWebbOn Sat, 31 Jul 2024 00:51:31 +1200 Barry Song wrote: > Obviously kaslr is setting the module region to 2GB rather than 4GB since > commit b2eed9b588112 ("arm64/kernel: kaslr: reduce module randomization > range to 2 GB"). So fix the size of region in Kconfig. > On the other hand, even though … scrounge ntfsWebbLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH] arm64: defconfig: update and enable CONFIG_RANDOMIZE_BASE @ 2024-06-20 0:32 Nick Desaulniers 2024-06-20 7:46 ` Will Deacon 0 siblings, 1 reply; 14+ messages in thread From: Nick Desaulniers @ 2024-06-20 0:32 UTC (permalink / raw) To: catalin.marinas, … scrounge for food