01 Record

CVE-2023-53291

rcu/rcuscale: Stop kfree_scale_thread thread(s) after unloading rcuscale

MediumPUBLISHEDCNA: Linux

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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02 Description

rcu/rcuscale: Stop kfree_scale_thread thread(s) after unloading rcuscale

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 4.3% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-09-16 08:11Z11 MO AGO

Last updated

2026-05-11 19:42Z3 MO AGO

Reserved

2025-09-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-366Race Condition within a ThreadBase

Data version

5.2

Document digest

43c072dff3e2d58e48f4cf10f31ff18e40f9803590f4aea0422e7c2125851a68

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxe6e78b004fa7e0ab455d46d27f218bf6ce178a18 to < 604d6a5ff718874904b0fe614878a42b42c0d699, e6e78b004fa7e0ab455d46d27f218bf6ce178a18 to < f766d45ab294871a3d588ee76c666852f151cad9, e6e78b004fa7e0ab455d46d27f218bf6ce178a18 to < b8a6ba524d41f4da102e65f90498d9a910839621, e6e78b004fa7e0ab455d46d27f218bf6ce178a18 to < 1dd7547c7610723b2b6afe1a3c4ddb2bde63387c, e6e78b004fa7e0ab455d46d27f218bf6ce178a18 to < 29b1da4f90fc42c91beb4e400d926194925ad31b, e6e78b004fa7e0ab455d46d27f218bf6ce178a18 to < 23fc8df26dead16687ae6eb47b0561a4a832e2f6, 5.6—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/604d6a5ff718874904b0fe614878a42b42c0d699
git.kernel.orghttps://git.kernel.org/stable/c/f766d45ab294871a3d588ee76c666852f151cad9
git.kernel.orghttps://git.kernel.org/stable/c/b8a6ba524d41f4da102e65f90498d9a910839621
git.kernel.orghttps://git.kernel.org/stable/c/1dd7547c7610723b2b6afe1a3c4ddb2bde63387c
git.kernel.orghttps://git.kernel.org/stable/c/29b1da4f90fc42c91beb4e400d926194925ad31b
git.kernel.orghttps://git.kernel.org/stable/c/23fc8df26dead16687ae6eb47b0561a4a832e2f6

01 Record index

CVE-2023-53291

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2023-53291

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References