01 Record

CVE-2021-46990

powerpc/64s: Fix crashes when toggling entry flush barrier

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

powerpc/64s: Fix crashes when toggling entry flush barrier

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 14.1% 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

Analyzed. 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

2024-02-28 08:13Z2 YR AGO

Last updated

2026-05-23 15:18Z3 MO AGO

Reserved

2024-02-27

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-20Improper Input ValidationClass

Data version

5.2

Document digest

acce2e701fa748125f32c5a607eee49945c0a457e1f888ccb332194cb9e1dc6b

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux4a1e90af718d1489ffcecc8f52486c4f5dc0f7a6 to < 8382b15864e5014261b4f36c2aa89723612ee058, fa4bf9f38184ed7ca4916eb64f8c767d1e279c1f to < 0c25a7bb697f2e6ee65b6d63782f675bf129511a, db01cad9efe3c3838a6b3a3f68affd295c4b92d6 to < ee4b7aab93c2631c3bb0753023c5dda592bb666b, f69bb4e51f41973fb7594be1479fa689831efe1a to < 2db22ba4e0e103f00e0512e0ecce36ac78c644f8, b65458b6be8032c5179d4f562038575d7b3a6be3 to < 0b4eb172cc12dc102cd0ad013e53ee4463db9508, f79643787e0a0762d2409b7b8334e83f22d85695 to < d2e3590ca39ccfd8a5a46d8c7f095cb6c7b9ae92, f79643787e0a0762d2409b7b8334e83f22d85695 to < dd0d6117052faace5440db20fc37175efe921c7d, f79643787e0a0762d2409b7b8334e83f22d85695 to < 5bc00fdda1e934c557351a9c751a205293e68cbf, f79643787e0a0762d2409b7b8334e83f22d85695 to < aec86b052df6541cc97c5fca44e5934cbea4963b, e590b36718d6e740b7b19514f710402a6499164c, 4.4.245 to < 4.4.269, 4.9.245 to < 4.9.269, 4.14.208 to < 4.14.233, 4.19.159 to < 4.19.191, 5.4.79 to < 5.4.120, 5.9.10 to < 5.10, 5.10—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/8382b15864e5014261b4f36c2aa89723612ee058
git.kernel.orghttps://git.kernel.org/stable/c/0c25a7bb697f2e6ee65b6d63782f675bf129511a
git.kernel.orghttps://git.kernel.org/stable/c/ee4b7aab93c2631c3bb0753023c5dda592bb666b
git.kernel.orghttps://git.kernel.org/stable/c/2db22ba4e0e103f00e0512e0ecce36ac78c644f8
git.kernel.orghttps://git.kernel.org/stable/c/0b4eb172cc12dc102cd0ad013e53ee4463db9508
git.kernel.orghttps://git.kernel.org/stable/c/d2e3590ca39ccfd8a5a46d8c7f095cb6c7b9ae92
git.kernel.orghttps://git.kernel.org/stable/c/dd0d6117052faace5440db20fc37175efe921c7d
git.kernel.orghttps://git.kernel.org/stable/c/5bc00fdda1e934c557351a9c751a205293e68cbf
git.kernel.orghttps://git.kernel.org/stable/c/aec86b052df6541cc97c5fca44e5934cbea4963b

01 Record index

CVE-2021-46990

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-46990

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References