Randomize the module region over a 4 gb range

Author: mngu

August undefined, 2024

Webb18 dec. 2024 · thread-prev] Date: Tue, 18 Dec 2024 01:27:22 +0000 From: "Edgecombe, Rick P" To: "[email protected]" CC: "linux-kernel ... WebbAlthough module_alloc() can fall back to a 2GB > > > > window if ARM64_MODULE_PLTS is set, the module region is still easily > > > > exhausted because the module region is located at bottom of vmalloc region > > > > and the vmalloc region is allocated from bottom to top. > > > > > > > > Skip module region if not calling from module_alloc(). > > > …

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

WebbAlthough module_alloc() can fall back to a 2GB > > > > > > window if ARM64_MODULE_PLTS is set, the module region is still easily > > > > > > exhausted because the module region is located at bottom of vmalloc region > > > > > > and the vmalloc region is allocated from bottom to top. > > > > > > > > > > > > Skip module region … offline heic converter

Re: [PATCH] arm64: Kconfig …

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 … 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 … 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 … offline heic to jpg converter

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

LKML: youngjun: [PATCH] arm64: update RANDOMIZE_MODULE_REGION…

Webbu64 module_range; u32 seed; /* * Set a reasonable default for module_alloc_base in case ... * Randomize the module region over a 2 GB window covering the * kernel. This reduces the risk of modules leaking information * about the address of the kernel itself, but results in WebbLKML 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, … myers central coastWebbSigned-off-by: youngjun --- arch/arm64/Kconfig 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/Kconfig … offline hearts game download

"Webb23 nov. 2024 · > + bool "Randomize the module region over a 2 GB range" > depends on RANDOMIZE_BASE > default y > help > - Randomizes the location of the module region … " - Randomize the module region over a 4 gb range

Randomize the module region over a 4 gb range

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

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 … 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 …

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WebbRELOCATABLE 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 Webb31 juli 2024 · + bool "Randomize the module region over a 2 GB range" depends on RANDOMIZE_BASE default y help - 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 way, it is less likely for modules to leak information about …

Randomizes 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 Webb21 nov. 2024 · + bool "Randomize the module region over a 2 GB range" depends on RANDOMIZE_BASE default y help - 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 way, it is less likely for modules to leak information about …

WebbSo fix the size of region in Kconfig. On the other hand, even though RANDOMIZE_MODULE_REGION_FULL is not set, module_alloc() can fall back to a 2GB … 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 …

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 …

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 +1812,10 @@ 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, … offline heart rate monitorWebb29 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 … offline hearts gameWebbOn 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 … myers chadstone shopping centreWebbLinux Kernel: [PATCH] arm64: update RANDOMIZE_MODULE_REGION_FULL config description [PATCH] arm64: update ... say N. config … offline help calculatorWebbOn 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 … myers centralWebb16 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 … offline heldenWebb26 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. myers cgl-21sw