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CVE-2024-42245

Опубликовано: 07 авг. 2024
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 5.5

Описание

In the Linux kernel, the following vulnerability has been resolved: Revert "sched/fair: Make sure to try to detach at least one movable task" This reverts commit b0defa7ae03ecf91b8bfd10ede430cff12fcbd06. b0defa7ae03ec changed the load balancing logic to ignore env.max_loop if all tasks examined to that point were pinned. The goal of the patch was to make it more likely to be able to detach a task buried in a long list of pinned tasks. However, this has the unfortunate side effect of creating an O(n) iteration in detach_tasks(), as we now must fully iterate every task on a cpu if all or most are pinned. Since this load balance code is done with rq lock held, and often in softirq context, it is very easy to trigger hard lockups. We observed such hard lockups with a user who affined O(10k) threads to a single cpu. When I discussed this with Vincent he initially suggested that we keep the limit on the number of tasks to detach, but increase the number of tasks we can search. However...

РелизСтатусПримечание
bionic

not-affected

4.13.0-16.19
devel

not-affected

6.11.0-8.8
esm-infra-legacy/trusty

not-affected

3.13.0-173.224
esm-infra/bionic

not-affected

4.13.0-16.19
esm-infra/focal

not-affected

5.4.0-9.12
esm-infra/xenial

not-affected

4.4.0-2.16
focal

not-affected

5.4.0-9.12
jammy

not-affected

5.13.0-19.19
noble

released

6.8.0-48.48
oracular

not-affected

6.11.0-7.7

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

end of kernel support
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

not-affected

4.15.0-1001.1
devel

not-affected

6.11.0-1004.4
esm-infra-legacy/trusty

not-affected

4.4.0-1054.58
esm-infra/bionic

not-affected

4.15.0-1001.1
esm-infra/focal

not-affected

5.4.0-1005.5
esm-infra/xenial

not-affected

4.4.0-1001.10
focal

not-affected

5.4.0-1005.5
jammy

not-affected

5.13.0-1005.6
noble

released

6.8.0-1018.20
oracular

not-affected

6.11.0-1002.2

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

superseded by linux-aws-5.3
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-aws-5.13
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-aws-5.13]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-aws-5.15
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-aws-5.15]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.15.0-1015.19~20.04.1
esm-infra/xenial

DNE

focal

not-affected

5.15.0-1015.19~20.04.1
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-aws-6.2
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

superseded by linux-aws-5.4
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

not-affected

5.4.0-1020.20~18.04.2
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

not-affected

5.4.0-1020.20~18.04.2
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-aws-5.11
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-aws-5.11]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-aws-6.5
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-aws-6.8
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

released

6.8.0-1018.19~22.04.1
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

fips-preview/jammy

not-affected

5.15.0-1051.56+fips1
fips-updates/bionic

not-affected

4.15.0-2000.4
fips-updates/focal

not-affected

5.4.0-1021.21+fips2
fips-updates/jammy

not-affected

5.15.0-1052.57+fips1
fips-updates/xenial

DNE

fips/bionic

not-affected

4.15.0-2000.4

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

esm-infra/xenial

not-affected

4.15.0-1031.33~16.04.1
focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

not-affected

6.11.0-1004.4
esm-infra-legacy/trusty

not-affected

4.15.0-1059.64~14.04.1
esm-infra/bionic

ignored

superseded by linux-azure-5.3
esm-infra/focal

not-affected

5.4.0-1006.6
esm-infra/xenial

not-affected

4.11.0-1015.15
focal

not-affected

5.4.0-1006.6
jammy

not-affected

5.13.0-1006.7
noble

released

6.8.0-1017.20
oracular

not-affected

6.11.0-1003.3

Показывать по

РелизСтатусПримечание
bionic

not-affected

4.15.0-1082.92
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

not-affected

4.15.0-1082.92
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-azure-5.13
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-azure-5.13]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-azure-5.15
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-azure-5.15]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.15.0-1007.8~20.04.1
esm-infra/xenial

DNE

focal

not-affected

5.15.0-1007.8~20.04.1
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-azure-6.2
noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

superseded by linux-azure-5.4
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

not-affected

5.4.0-1022.22~18.04.1
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

not-affected

5.4.0-1022.22~18.04.1
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-azure-5.11
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-azure-5.11]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-azure-6.5
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-azure-6.8
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

released

6.8.0-1017.20~22.04.1
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

superseded by linux-azure-5.3
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-azure-fde-5.15
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-azure-fde-5.15]
jammy

not-affected

5.15.0-1019.24.1
noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.15.0-1019.24~20.04.1.1
esm-infra/xenial

DNE

focal

not-affected

5.15.0-1019.24~20.04.1.1
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-azure-fde-6.2
noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

replaced by linux-azure-6.5
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

fips-preview/jammy

not-affected

5.15.0-1053.61+fips1
fips-updates/bionic

not-affected

4.15.0-1002.2
fips-updates/focal

not-affected

5.4.0-1022.22+fips1
fips-updates/jammy

not-affected

5.15.0-1058.66+fips1
fips-updates/xenial

DNE

fips/bionic

not-affected

4.15.0-1002.2

Показывать по

РелизСтатусПримечание
bionic

DNE

bluefield/jammy

not-affected

5.15.0-1011.13
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.4.0-1011.14
esm-infra/xenial

DNE

focal

not-affected

5.4.0-1011.14
jammy

DNE

noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

fips-preview/jammy

not-affected

5.15.0-73.80+fips1
fips-updates/bionic

not-affected

4.15.0-1027.32
fips-updates/focal

not-affected

5.4.0-1026.30
fips-updates/jammy

not-affected

5.15.0-92.102+fips1
fips-updates/xenial

not-affected

4.4.0-1003.3
fips/bionic

not-affected

4.15.0-1011.12

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

not-affected

6.11.0-1003.3
esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

superseded by linux-gcp-5.3
esm-infra/focal

not-affected

5.4.0-1005.5
esm-infra/xenial

not-affected

4.10.0-1004.4
focal

not-affected

5.4.0-1005.5
jammy

not-affected

5.13.0-1005.6
noble

released

6.8.0-1017.19
oracular

not-affected

6.11.0-1001.1

Показывать по

РелизСтатусПримечание
bionic

not-affected

4.15.0-1071.81
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

not-affected

4.15.0-1071.81
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-gcp-5.13
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-gcp-5.13]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-gcp-5.15
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-gcp-5.15]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.15.0-1006.9~20.04.1
esm-infra/xenial

DNE

focal

not-affected

5.15.0-1006.9~20.04.1
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-gcp-6.2
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

superseded by linux-gcp-5.4
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

not-affected

5.4.0-1021.21~18.04.1
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

not-affected

5.4.0-1021.21~18.04.1
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-gcp-5.11
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-gcp-5.11]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-gcp-6.5
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-gcp-6.8
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

released

6.8.0-1017.19~22.04.1
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

fips-preview/jammy

not-affected

5.15.0-1048.56+fips1
fips-updates/bionic

not-affected

4.15.0-2013.14
fips-updates/focal

not-affected

5.4.0-1021.21+fips1
fips-updates/jammy

not-affected

5.15.0-1048.56+fips1
fips-updates/xenial

DNE

fips/bionic

not-affected

4.15.0-1001.1

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

end of kernel support
focal

ignored

end of kernel support
jammy

not-affected

5.15.0-1002.2
noble

released

6.8.0-1013.17
oracular

DNE

trusty

DNE

trusty/esm

DNE

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

superseded by linux-gke-5.0
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

end of kernel support
esm-infra/xenial

DNE

focal

ignored

end of kernel support
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

end of kernel support
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.4.0-1008.9
focal

not-affected

5.4.0-1008.9
jammy

not-affected

5.15.0-1001.2
noble

released

6.8.0-1002.4
oracular

DNE

trusty

DNE

trusty/esm

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

not-affected

5.15.0-1003.5~20.04.2
esm-infra/xenial

DNE

focal

not-affected

5.15.0-1003.5~20.04.2
jammy

DNE

noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

end of kernel support
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

replaced by linux-hwe-5.4
esm-infra/focal

DNE

esm-infra/xenial

not-affected

4.8.0-39.42~16.04.1
focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-hwe-5.13
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-hwe-5.13]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-hwe-5.15
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-hwe-5.15]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.15.0-33.34~20.04.1
esm-infra/xenial

DNE

focal

not-affected

5.15.0-33.34~20.04.1
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-hwe-6.2
noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

not-affected

5.4.0-37.41~18.04.1
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

not-affected

5.4.0-37.41~18.04.1
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-hwe-5.11
focal

ignored

end of standard support, was ignored [superseded by linux-hwe-5.11]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

trusty/esm

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-hwe-6.5
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-hwe-6.8
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

released

6.8.0-48.48~22.04.1
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

not-affected

5.0.0-15.16~18.04.1
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

superseded by linux-hwe-5.4
esm-infra/focal

DNE

esm-infra/xenial

ignored

superseded by linux-hwe
focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.4.0-1004.5
esm-infra/xenial

DNE

focal

not-affected

5.4.0-1004.5
jammy

not-affected

5.15.0-1002.2
noble

released

6.8.0-1015.15
oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

not-affected

5.15.0-1034.37~20.04.1
esm-infra/xenial

DNE

focal

not-affected

5.15.0-1034.37~20.04.1
jammy

DNE

noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

not-affected

5.4.0-1010.11~18.04.2
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

not-affected

5.4.0-1010.11~18.04.2
esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

DNE

noble

not-affected

6.8.0-1014.21
oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

end of kernel support
focal

ignored

end of kernel support
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

trusty/esm

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra/focal

DNE

focal

DNE

jammy

ignored

superseded by Ubuntu Pro ppa version
noble

DNE

oracular

DNE

realtime/jammy

not-affected

5.15.0-1021.26
trusty

DNE

upstream

released

6.10

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

not-affected

5.15.0-1004.6
noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.15.0-1003.5~20.04.1
esm-infra/xenial

DNE

focal

not-affected

5.15.0-1003.5~20.04.1
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.4.0-1001.3
esm-infra/xenial

DNE

focal

not-affected

5.4.0-1001.3
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

not-affected

4.15.0-1002.2
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

not-affected

4.15.0-1002.2
esm-infra/focal

not-affected

5.4.0-1004.4
esm-infra/xenial

not-affected

4.4.0-1007.12
focal

not-affected

5.4.0-1004.4
jammy

not-affected

5.13.0-1004.4
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

not-affected

5.15.0-22.22
noble

released

6.8.0-48.48.3
oracular

not-affected

6.11.0-1002.2
trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.15.0-33.34~20.04.1
esm-infra/xenial

DNE

focal

not-affected

5.15.0-33.34~20.04.1
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-lowlatency-hwe-6.2
noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-lowlatency-hwe-6.5
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-lowlatency-hwe-6.8
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

released

6.8.0-48.48.3~22.04.1
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

not-affected

4.4.0-164.192~14.04.1
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

not-affected

4.4.0-13.29~14.04.1
trusty/esm

not-affected

4.4.0-13.29~14.04.1

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

not-affected

5.15.0-1005.5
noble

released

6.8.0-1017.19
oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-nvidia-6.5
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-nvidia-6.8, was needed
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

released

6.8.0-1017.19~22.04.1
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

DNE

noble

released

6.8.0-1017.19.1
oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

replaced by linux-hwe-5.4
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-oem-5.13
focal

ignored

end of standard support, was ignored [superseded by linux-oem-5.13]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

trusty/esm

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-oem-5.14
focal

ignored

end of standard support, was ignored [superseded by linux-oem-5.14]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

trusty/esm

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

replaced by linux-hwe-5.15
focal

ignored

end of standard support, was ignored [replaced by linux-hwe-5.15]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

trusty/esm

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-oem-6.1
noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-oem-5.10
focal

ignored

end of standard support, was ignored [superseded by linux-oem-5.10]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

trusty/esm

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-oem-6.1
noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-oem-6.5
noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

DNE

noble

not-affected

6.11.0-1007.7
oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-oem-6.8
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

DNE

noble

released

6.8.0-1016.16
oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

not-affected

4.15.0-1008.10
devel

not-affected

6.11.0-1006.6
esm-infra-legacy/trusty

DNE

esm-infra/bionic

not-affected

4.15.0-1008.10
esm-infra/focal

not-affected

5.4.0-1005.5
esm-infra/xenial

not-affected

4.15.0-1008.10~16.04.1
focal

not-affected

5.4.0-1005.5
jammy

not-affected

5.13.0-1008.10
noble

released

6.8.0-1015.16
oracular

not-affected

6.11.0-1004.4

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

superseded by linux-oracle-5.3
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-oracle-5.13
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-oracle-5.13]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-oracle-5.15
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-oracle-5.15]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.15.0-1007.9~20.04.1
esm-infra/xenial

DNE

focal

not-affected

5.15.0-1007.9~20.04.1
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

ignored

superseded by linux-oracle-5.4
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

not-affected

5.4.0-1021.21~18.04.1
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

not-affected

5.4.0-1021.21~18.04.1
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-oracle-5.11
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-oracle-5.11]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-oracle-6.8
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

released

6.8.0-1015.15~22.04.1
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

not-affected

6.11.0-1004.4
esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.4.0-1007.7
focal

not-affected

5.4.0-1007.7
jammy

not-affected

5.13.0-1008.9
noble

released

6.8.0-1014.16
oracular

not-affected

6.11.0-1003.3
trusty

DNE

trusty/esm

DNE

Показывать по

РелизСтатусПримечание
bionic

not-affected

5.4.0-1013.13~18.04.1
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

not-affected

5.4.0-1013.13~18.04.1
esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra/focal

DNE

focal

DNE

jammy

DNE

noble

released

6.8.0-2013.14
oracular

DNE

realtime/noble

released

6.8.0-2013.14
trusty

DNE

upstream

released

6.10

Показывать по

РелизСтатусПримечание
bionic

ignored

end of standard support
devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

replaced by linux-raspi
focal

ignored

end of standard support, was ignored [replaced by linux-raspi]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

trusty/esm

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

not-affected

6.11.0-1001.1
esm-infra/focal

DNE

focal

DNE

jammy

ignored

superseded by Ubuntu Pro ppa version
noble

not-affected

6.8.1-1015.16
oracular

not-affected

6.11.0-1001.1
realtime/jammy

not-affected

5.15.0-1006.6
realtime/noble

released

6.8.1-1011.11
trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

not-affected

6.11.0-8.8.1
esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-riscv-5.8
focal

ignored

end of standard support, was ignored [superseded by linux-riscv-5.8]
jammy

ignored

end of kernel support
noble

released

6.8.0-48.48.1
oracular

not-affected

6.11.0-8.8.1
trusty

DNE

trusty/esm

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-riscv-5.13
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-riscv-5.13]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.15.0-1015.17~20.04.1
esm-infra/xenial

DNE

focal

not-affected

5.15.0-1015.17~20.04.1
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

end of kernel support
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

ignored

superseded by linux-riscv-5.11
esm-infra/xenial

DNE

focal

ignored

end of standard support, was ignored [superseded by linux-riscv-5.11]
jammy

DNE

noble

DNE

oracular

DNE

trusty

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-riscv-6.8
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

released

6.8.0-48.48.1~22.04.2
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

end of kernel support
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

superseded by linux-starfive-6.5
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/bionic

DNE

esm-infra/focal

DNE

esm-infra/xenial

DNE

focal

DNE

jammy

ignored

end of kernel support
noble

DNE

oracular

DNE

Показывать по

РелизСтатусПримечание
bionic

DNE

devel

DNE

esm-infra-legacy/trusty

DNE

esm-infra/focal

not-affected

5.4.0-1020.24
esm-infra/xenial

DNE

focal

not-affected

5.4.0-1020.24
jammy

not-affected

5.15.0-1022.26
noble

DNE

oracular

DNE

trusty

DNE

Показывать по

EPSS

Процентиль: 13%
0.00045
Низкий

5.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.5
redhat
11 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: Revert "sched/fair: Make sure to try to detach at least one movable task" This reverts commit b0defa7ae03ecf91b8bfd10ede430cff12fcbd06. b0defa7ae03ec changed the load balancing logic to ignore env.max_loop if all tasks examined to that point were pinned. The goal of the patch was to make it more likely to be able to detach a task buried in a long list of pinned tasks. However, this has the unfortunate side effect of creating an O(n) iteration in detach_tasks(), as we now must fully iterate every task on a cpu if all or most are pinned. Since this load balance code is done with rq lock held, and often in softirq context, it is very easy to trigger hard lockups. We observed such hard lockups with a user who affined O(10k) threads to a single cpu. When I discussed this with Vincent he initially suggested that we keep the limit on the number of tasks to detach, but increase the number of tasks we can search. However, af...

CVSS3: 5.5
nvd
11 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: Revert "sched/fair: Make sure to try to detach at least one movable task" This reverts commit b0defa7ae03ecf91b8bfd10ede430cff12fcbd06. b0defa7ae03ec changed the load balancing logic to ignore env.max_loop if all tasks examined to that point were pinned. The goal of the patch was to make it more likely to be able to detach a task buried in a long list of pinned tasks. However, this has the unfortunate side effect of creating an O(n) iteration in detach_tasks(), as we now must fully iterate every task on a cpu if all or most are pinned. Since this load balance code is done with rq lock held, and often in softirq context, it is very easy to trigger hard lockups. We observed such hard lockups with a user who affined O(10k) threads to a single cpu. When I discussed this with Vincent he initially suggested that we keep the limit on the number of tasks to detach, but increase the number of tasks we can search. However, a

CVSS3: 5.5
msrc
10 месяцев назад

Описание отсутствует

CVSS3: 5.5
debian
11 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: R ...

CVSS3: 5.5
github
11 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: Revert "sched/fair: Make sure to try to detach at least one movable task" This reverts commit b0defa7ae03ecf91b8bfd10ede430cff12fcbd06. b0defa7ae03ec changed the load balancing logic to ignore env.max_loop if all tasks examined to that point were pinned. The goal of the patch was to make it more likely to be able to detach a task buried in a long list of pinned tasks. However, this has the unfortunate side effect of creating an O(n) iteration in detach_tasks(), as we now must fully iterate every task on a cpu if all or most are pinned. Since this load balance code is done with rq lock held, and often in softirq context, it is very easy to trigger hard lockups. We observed such hard lockups with a user who affined O(10k) threads to a single cpu. When I discussed this with Vincent he initially suggested that we keep the limit on the number of tasks to detach, but increase the number of tasks we can search. However...

EPSS

Процентиль: 13%
0.00045
Низкий

5.5 Medium

CVSS3

Уязвимость CVE-2024-42245