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linux-yocto/6.4: fix uninitialized read in nohz_full/isolcpus setup

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Integrating the following commit(s) to linux-yocto/6.4:

    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: b3a71c7d36e3a4833e90728499e08543257042a1)

(From OE-Core rev: bb5865b10316754213711551fa68a53a4fb741d9)

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 11:44:41 -04:00
committed by Richard Purdie
parent 0dba974a14
commit d65e9aa756
3 changed files with 16 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
meta/recipes-kernel/linux/linux-yocto-rt_6.4.bb
View File

@@ -14,8 +14,8 @@ python () {
raise bb.parse.SkipRecipe("Set PREFERRED_PROVIDER_virtual/kernel to linux-yocto-rt to enable it")
}
SRCREV_machine ?= "c5e2054d6dd1e4d87bc05758b03c8414b6229bdc"
SRCREV_meta ?= "b7b65d4e9a3f7910d9590c325798a6d012087555"
SRCREV_machine ?= "a6b1e0d6cfc7843898d7624427f50e5391edac51"
SRCREV_meta ?= "be4b1defa25b1560b7d92e1ade1b7c52a226fc38"
SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;branch=${KBRANCH};name=machine;protocol=https \
git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-6.4;destsuffix=${KMETA};protocol=https"

4
meta/recipes-kernel/linux/linux-yocto-tiny_6.4.bb
View File

@@ -17,8 +17,8 @@ DEPENDS += "openssl-native util-linux-native"
KMETA = "kernel-meta"
KCONF_BSP_AUDIT_LEVEL = "2"
SRCREV_machine ?= "d58a0ccc079a8173c41eca28d801f07eb806d3e5"
SRCREV_meta ?= "b7b65d4e9a3f7910d9590c325798a6d012087555"
SRCREV_machine ?= "a0b10018f36e04152354dc83c41134406e137571"
SRCREV_meta ?= "be4b1defa25b1560b7d92e1ade1b7c52a226fc38"
PV = "${LINUX_VERSION}+git${SRCPV}"

24
meta/recipes-kernel/linux/linux-yocto_6.4.bb
View File

@@ -18,18 +18,18 @@ KBRANCH:qemux86-64 ?= "v6.4/standard/base"
KBRANCH:qemuloongarch64 ?= "v6.4/standard/base"
KBRANCH:qemumips64 ?= "v6.4/standard/mti-malta64"
SRCREV_machine:qemuarm ?= "98ab6b8c56f20616739f11d78f9ce5e0f142e897"
SRCREV_machine:qemuarm64 ?= "d58a0ccc079a8173c41eca28d801f07eb806d3e5"
SRCREV_machine:qemuloongarch64 ?= "d58a0ccc079a8173c41eca28d801f07eb806d3e5"
SRCREV_machine:qemumips ?= "ea17dea03919f5923b5948473fda920b9a6c2823"
SRCREV_machine:qemuppc ?= "d58a0ccc079a8173c41eca28d801f07eb806d3e5"
SRCREV_machine:qemuriscv64 ?= "d58a0ccc079a8173c41eca28d801f07eb806d3e5"
SRCREV_machine:qemuriscv32 ?= "d58a0ccc079a8173c41eca28d801f07eb806d3e5"
SRCREV_machine:qemux86 ?= "d58a0ccc079a8173c41eca28d801f07eb806d3e5"
SRCREV_machine:qemux86-64 ?= "d58a0ccc079a8173c41eca28d801f07eb806d3e5"
SRCREV_machine:qemumips64 ?= "d8138296adb9b11a94fcc42d345e49bbb1dd5ede"
SRCREV_machine ?= "d58a0ccc079a8173c41eca28d801f07eb806d3e5"
SRCREV_meta ?= "b7b65d4e9a3f7910d9590c325798a6d012087555"
SRCREV_machine:qemuarm ?= "53136802928146b86b68bdf796f825d142e3a014"
SRCREV_machine:qemuarm64 ?= "a0b10018f36e04152354dc83c41134406e137571"
SRCREV_machine:qemuloongarch64 ?= "a0b10018f36e04152354dc83c41134406e137571"
SRCREV_machine:qemumips ?= "bec202d0a29e4acf9d4e673f1c358e60879c95dc"
SRCREV_machine:qemuppc ?= "a0b10018f36e04152354dc83c41134406e137571"
SRCREV_machine:qemuriscv64 ?= "a0b10018f36e04152354dc83c41134406e137571"
SRCREV_machine:qemuriscv32 ?= "a0b10018f36e04152354dc83c41134406e137571"
SRCREV_machine:qemux86 ?= "a0b10018f36e04152354dc83c41134406e137571"
SRCREV_machine:qemux86-64 ?= "a0b10018f36e04152354dc83c41134406e137571"
SRCREV_machine:qemumips64 ?= "e9dcec67cb7b9703d6eac9a705e94e5f5aab4f0c"
SRCREV_machine ?= "a0b10018f36e04152354dc83c41134406e137571"
SRCREV_meta ?= "be4b1defa25b1560b7d92e1ade1b7c52a226fc38"
# set your preferred provider of linux-yocto to 'linux-yocto-upstream', and you'll
# get the <version>/base branch, which is pure upstream -stable, and the same