linux-yocto/6.1: fix uninitialized read in nohz_full/isolcpus setup

mirror of https://git.yoctoproject.org/poky synced 2026-07-15 15:37:03 +00:00

Integrating the following commit(s) to linux-yocto/6.1:

    4675ec8d0b9a kernel/sched: Fix uninitialized read in nohz_full/isolcpus setup

The carry forward of commit from the v5.15 linux-yocto kernel:

https://git.yoctoproject.org/linux-yocto/commit/?id=97c96388922

...in which case the sanity checks are properly *after* the allocation
and processing of the bootargs into the cpumask.

However, it seems patch (or wiggle?) apparently decided to put the
sanity checks *before* the population of the cpumask during the
carry-forward and generation of the new v6.1 kernel.  Meaning they are
validating uninitialized memory and hence nohz_full= and isolcpus= are
subject to random failures even for valid input ranges.

(From OE-Core rev: 4b349ee66eab8ebe3150ac4c1b449ea5c264a5be)

(From OE-Core rev: 92642acd1166b7990fb520337b78a4d37ce7cbe4)

Signed-off-by: Adrian Cinal <adriancinal1@gmail.com>
Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

This commit is contained in:

Bruce Ashfield

2023-08-21 11:44:40 -04:00

committed by

Richard Purdie

parent 5e8e48567c

commit 0dba974a14

3 changed files with 16 additions and 16 deletions

									
										meta/recipes-kernel/linux/linux-yocto-tiny_6.1.bb
									
		+2
		-2
	
												View File
												
				@@ -17,8 +17,8 @@ DEPENDS += "openssl-native util-linux-native"

				KMETA = "kernel-meta"

				KCONF_BSP_AUDIT_LEVEL = "2"

				SRCREV_machine ?= "fb0e7ef6dd4b51325abcaab53645962994018135"

				SRCREV_meta ?= "8da434f09dc2892d8ec26325f0856aabccc17bed"

				SRCREV_machine ?= "786775632028f7909d9f905c4530d7eaae0b2ab0"

				SRCREV_meta ?= "2e1a81f17434de2a9bd27676efdde7861946582e"

				PV = "${LINUX_VERSION}+git${SRCPV}"