Config_refcount_full

Author: uqgq

August undefined, 2024

WebJun 10, 2024 · BR2_RELRO_FULL: This option includes the partial configuration, but also marks the GOT as read-only at the cost of initialization time during program loading, i.e every time an executable is started. Set Build options -> RELRO Protection -> Full (BR2_RELRO_FULL = y). _FORTIFY_SOURCE WebApr 28, 2024 · refcount_full 这个是一个针对引用计数的溢出保护，在对引用计数操作的函数中添加指令检测refcount是否为负。如果没有这个保护，内核对象引用计数不断增加， …

ReactiveX - RefCount operator

WebNov 25, 2024 · locking/refcount: Improve performance of generic REFCOUNT_FULL code Rewrite the generic REFCOUNT_FULL implementation so that the saturation point is … Web+ of some full refcount state checks. The refcount overflow condition, + however, must be retained. Catching overflows is the primary + security concern for protecting against bugs in reference counts. + config REFCOUNT_FULL bool "Perform full reference count validation at the expense of speed" help diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig how old is gabi aot season 4

Linux kernel configs - Google Open Source

WebJun 19, 2024 · CONFIG_REFCOUNT_FULL y defconfig self_protection FAIL: "is not set" ... Config check is finished: 'OK' - 58 / 'FAIL' - 82. kconfig-hardened-check versioning. I usually update the kernel hardening recommendations after each Linux kernel release. WebThis is the reason we ended up enabling CONFIG_REFCOUNT_FULL >> for arm64. I will let others comment on whether we want this patch in >> the first place, Dear Ard, Dave, I wanna hear some comment on above point. Is CONFIG_REFCOUNT_FULL much better for arm? If it is, I don't need to prepare v2 patch. (then, just needed to add "select … Web*RESEND PATCH v4 00/10] Rework REFCOUNT_FULL using atomic_fetch_* operations @ 2024-11-21 11:58 Will Deacon 2024-11-21 11:58 ` [RESEND PATCH v4 01/10] lib/refcount: Define constants for saturation and max refcount values Will Deacon ` (11 more replies) 0 siblings, 12 replies; 36+ messages in thread From: Will Deacon @ 2024 … mer-club

[RESEND PATCH v4 04/10] lib/refcount: Move bulk of REFCOUNT_FULL …

OS hardening on the Raspberry Pi – CrySyS Blog

WebCONFIG_REFCOUNT_FULL - - Enabling this switches the refcounting infrastructure from a fast unchecked atomic_t implementation to a fully state checked implementation, which … WebJun 18, 2024 · Motivation There are plenty of Linux kernel hardening config options. A lot of them are not enabled by the major distros. We have to enable these options ourselves to make our systems more secure. But nobody likes checking configs manually. So let the computers do their job! kconfig-hardened-check.py helps me to check the Linux … how old is gabi hollowsWebJul 18, 2024 · The refcount is initialized with 0, my kernel is > build with CONFIG_REFCOUNT_FULL=y which makes `refcount_inc` be > … mer cls

"Webrefcount state checks of CONFIG_REFCOUNT_FULL=y. The refcount overflow check behavior, however, must be retained. Catching overflows is the primary security concern … " - Config_refcount_full

Config_refcount_full

arch/Kconfig - kernel/common - Git at Google

Web* [PATCH] Convert struct pid count to refcount_t @ 2024-03-27 14:53 Joel Fernandes (Google) 2024-03-28 0:06 ` Kees Cook 0 siblings, 1 reply; 30+ messages in thread From: Joel Fernandes (Google) @ 2024-03-27 14:53 UTC (permalink / raw) To: linux-kernel Cc: Joel Fernandes (Google), keescook, kernel-team, kernel-hardening, Andrew Morton, Eric … WebMar 13, 2024 · * CONFIG_REFCOUNT_FULL refuses to move a refcount at all on an * over-sub, so we have to track our starting position instead of * looking only at zero-pinning. */ if ... * Only CONFIG_REFCOUNT_FULL provides this protection currently. */ void lkdtm_REFCOUNT_INC_ZERO (void) {refcount_t zero = REFCOUNT_INIT (0);

Did you know?

Web@@ -975,4 +975,14 @@ config REFCOUNT_FULL against various use-after-free conditions that can be used in security flaw exploits. +config HAVE_ARCH_PREL32_RELOCATIONS + bool + help + May be selected by an architecture if it supports place-relative + 32-bit relocations, both in the toolchain and in the module … WebCONFIG_REFCOUNT_FULL must be enabled. NOTE: automatic kernel builder for some reason doesn't like all my network branches and regularly times out the builds on these branches. Suggestion for "waiting a day for a good coverage" doesn't work, as we have seen with generic network conversions. So please wait for the

WebIn an effort to improve performance of the REFCOUNT_FULL implementation, move the bulk of its functions into linux/refcount.h. This allows them ... @@ -45,22 +45,241 @@ static inline unsigned int refcount_read(const refcount_t *r)} #ifdef CONFIG_REFCOUNT_FULL +#include #define REFCOUNT_MAX …

WebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH RFC v2] Convert struct pid count to refcount_t @ 2024-06-24 18:45 Joel Fernandes (Google) 2024-06-24 18:52 ` Joel Fernandes 2024-06-29 14:30 ` Andrea Parri 0 siblings, 2 replies; 7+ messages in thread From: Joel Fernandes (Google) @ 2024-06-24 18:45 UTC (permalink / raw) To: … WebThis adds CONFIG_REFCOUNT_FULL to enable the full refcount_t implementation which has the validation but is slightly slower. When not enabled, refcount_t uses the basic unchecked atomic_t routines, which results in no code changes compared to just using atomic_t directly. Signed-off-by: Kees Cook --- This is v2 of …

WebJul 10, 2024 · The new CONFIG_REFCOUNT_FULL configuration option can be used to select a version of the refcount_t reference-count implementation that drops the overflow tests to gain a bit more performance. By default, this option is enabled. The new "mux" driver subsystem provides support for multiplexer controllers that manage multiple devices.

WebCONFIG_REFCOUNT_FULL Since Peter Zijlstra implemented the refcount_t API in v4.11, Elena Reshetova (with Hans Liljestrand and David Windsor) has been systematically … merc long formWebCONFIG_REFCOUNT_FULL: Perform full reference count validation at the expense of speed General informations The Linux kernel configuration item CONFIG_REFCOUNT_FULL: prompt: Perform full reference count validation at the expense of speed type: bool depends on: (none) defined in arch/Kconfig found in Linux … merc magazine miss meowWebOct 22, 2024 · INFO: Value requested for CONFIG_REFCOUNT_FULL not in final .config Value requested for CONFIG_MEMORY_HOTREMOVE not in final .config Value … how old is gabi elnicki