2024 Config_refcount

Config_refcount_full

Author: wgkp

August undefined, 2024

WebJun 29, 2024 · June 29, 2024. Kconfig is a tool For Checking The Hardening Options In The Linux Kernel Config. There are plenty of Linux kernel hardening config options. A lot of … 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 …

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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 WebOct 21, 2024 · CONFIG_REFCOUNT_FULL has gone since kernel v5.5 · Issue #1168 · kata-containers/packaging · GitHub This repository has been archived by the owner on May 12, 2024. It is now read-only. kata-containers / packaging Public archive Notifications Fork 97 Star 118 Issues Pull requests Actions Projects Wiki Insights black and decker powerboost leaf blower

Kconfig : Hardened-Check – A Tool For Checking The Hardening Option…

WebOct 22, 2024 · Doesn't happen CONFIG_REFCOUNT_FULL not set. it seems first to appear after this settings: fs.file-max = 51200 net.core.rmem_max = 67108864 … Webconfigname: CONFIG_REFCOUNT_FULL Linux Kernel Configuration └─> Perform full reference count validation at the expense of speed Enabling this switches the refcounting infrastructure from a fast unchecked atomic_t implementation to a fully state checked implementation, which can be (slightly) slower but provides protections WebOct 21, 2024 · CONFIG_REFCOUNT_FULL has gone since kernel v5.5 · Issue #1168 · kata-containers/packaging · GitHub. This repository has been archived by the owner on … dave and busters wayne

locking/refcount: Consolidate implementations of refcount_t

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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 … WebOct 22, 2024 · INFO: Value requested for CONFIG_REFCOUNT_FULL not in final .config Value requested for CONFIG_MEMORY_HOTREMOVE not in final .config Value … dave and busters waterfront homestead paWebThe general approach is identical: the existing atomic_t helpers are cloned for refcount_t, with the arithmetic instruction modified to set the PSTATE flags, and one or two branch instructions added that jump to an out of line handler if overflow, decrement to zero or increment from zero are detected. dave and busters waterfront pa

"WebNov 25, 2024 · locking/refcount: Improve performance of generic REFCOUNT_FULL code Rewrite the generic REFCOUNT_FULL implementation so that the saturation point is … " - Config_refcount_full

Config_refcount_full

Diff - refs/heads/arm64-fast-refcount-v4

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 … 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: …

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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. WebAlthough the revised implementation passes all of the lkdtm REFCOUNT tests, there is a race condition introduced by the deferred saturation whereby if INT_MIN + 2 tasks take a reference on a refcount at REFCOUNT_MAX and are each preempted between detecting overflow and writing the saturated value without being rescheduled, then another task …

WebJan 14, 2016 · Patch 3's full commit log: This implements refcount_t overflow protection on x86 without a noticeable performance impact, though without the fuller checking of … Webrefcount_warn_saturate(r, REFCOUNT_ADD_NOT_ZERO_OVF); return old;} /** * refcount_add_not_zero - add a value to a refcount unless it is 0 * @i: the value to add …

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 … 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

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

black and decker power floor sweeper walmartWebA sample .conf file is available with full comments. (It may already be installed on your distribution as default.conf.sample.) The file uses a simple format of key=value, with one … dave and busters websterWebOperators; Connectable; RefCount; RefCount make a Connectable Observable behave like an ordinary Observable. A connectable Observable resembles an ordinary Observable, … black and decker power hoseWebJul 18, 2024 · The refcount is initialized with 0, my kernel is > build with CONFIG_REFCOUNT_FULL=y which makes `refcount_inc` be > … black and decker powered hand sawWebCONFIG_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 … dave and busters wednesday discountWebCONFIG_REFCOUNT_FULL - General architecture-dependent options - BoxMatrix FRITZ!Box Research Wiki. If you like BoxMatrixthen please contribute Supportdata, … dave and busters wayne njWebCONFIG_REFCOUNT_FULL Since Peter Zijlstra implemented the refcount_t API in v4.11, Elena Reshetova (with Hans Liljestrand and David Windsor) has been systematically … dave and busters wedding