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CVE-2023-53215

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Don't balance task to its current running CPU We've run into the case that the balancer tries to balance a migratio…

Published Sep 15, 2025EPSS 0.17%

Overview

CVE-2023-53215 is a high-severity vulnerability. It was published on September 15, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

sched/fair: Don't balance task to its current running CPU

We've run into the case that the balancer tries to balance a migration

disabled task and trigger the warning in set_task_cpu() like below:

------------[ cut here ]------------

WARNING: CPU: 7 PID: 0 at kernel/sched/core.c:3115 set_task_cpu+0x188/0x240

Modules linked in: hclgevf xt_CHECKSUM ipt_REJECT nf_reject_ipv4 <...snip>

CPU: 7 PID: 0 Comm: swapper/7 Kdump: loaded Tainted: G O 6.1.0-rc4+ #1

Hardware name: Huawei TaiShan 2280 V2/BC82AMDC, BIOS 2280-V2 CS V5.B221.01 12/09/2021

pstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)

pc : set_task_cpu+0x188/0x240

lr : load_balance+0x5d0/0xc60

sp : ffff80000803bc70

x29: ffff80000803bc70 x28: ffff004089e190e8 x27: ffff004089e19040

x26: ffff007effcabc38 x25: 0000000000000000 x24: 0000000000000001

x23: ffff80000803be84 x22: 000000000000000c x21: ffffb093e79e2a78

x20: 000000000

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/0dd37d6dd33a9c23351e6115ae8cdac7863bc7deRefgit.kernel.org/stable/c/32d937f94b7805d4c9028b8727a7d6241547da54Refgit.kernel.org/stable/c/34eb902050d473bb2befa15714fb1d30a0991c15Refgit.kernel.org/stable/c/3cb43222bab8ab328fc91ed30899b3df2efbccfdRefgit.kernel.org/stable/c/6b0c79aa33075b34c3cdcea4132c0afb3fc42d68Refgit.kernel.org/stable/c/78a5f711efceb37e32c48cd6b40addb671fea9ccRefgit.kernel.org/stable/c/a5286f4655ce2fa28f477c0b957ea7f323fe2fabRefgit.kernel.org/stable/c/cec1857b1ea5cc3ea2b600564f1c95d1a6f27ad1

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53215?

CVE-2023-53215 is a high-severity vulnerability. It was published on September 15, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-53215?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-53215?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-53215?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53215 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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