01 Record

CVE-2025-21866

powerpc/code-patching: Fix KASAN hit by not flagging text patching area as VM_ALLOC

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

View raw JSON

02 Description

powerpc/code-patching: Fix KASAN hit by not flagging text patching area as VM_ALLOC

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 13.4% 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

2025-03-12 09:42Z1 YR AGO

Last updated

2026-05-11 21:08Z3 MO AGO

Reserved

2024-12-29

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-770Allocation of Resources Without Limits or ThrottlingBase

Data version

5.2

Document digest

796534984ab8acf60819931cdd99d89df95bf132ca9bbc32b62dc033eb0e1f93

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux37bc3e5fd764fb258ff4fcbb90b6d1b67fb466c1 to < 97de5852058a299ba447cd9782fe96488d30108b, 37bc3e5fd764fb258ff4fcbb90b6d1b67fb466c1 to < f8d4c5b653c1bc0df56e15658bbf64fc359adc4e, 37bc3e5fd764fb258ff4fcbb90b6d1b67fb466c1 to < 6847b3e40bb963e57b61d1cc6fe84cb37b9d3d4c, 37bc3e5fd764fb258ff4fcbb90b6d1b67fb466c1 to < c905a3053518212a1017e50bd2be3bee59305bb0, 37bc3e5fd764fb258ff4fcbb90b6d1b67fb466c1 to < 2d542f13d26344e3452eee77613026ce9b653065, 37bc3e5fd764fb258ff4fcbb90b6d1b67fb466c1 to < 8d06e9208184b2851fa79a3a39d6860320c8bdf8, 37bc3e5fd764fb258ff4fcbb90b6d1b67fb466c1 to < 2e6c80423f201405fd65254e52decd21663896f3, 37bc3e5fd764fb258ff4fcbb90b6d1b67fb466c1 to < d262a192d38e527faa5984629aabda2e0d1c4f54, 4.13—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/97de5852058a299ba447cd9782fe96488d30108b
git.kernel.orghttps://git.kernel.org/stable/c/f8d4c5b653c1bc0df56e15658bbf64fc359adc4e
git.kernel.orghttps://git.kernel.org/stable/c/6847b3e40bb963e57b61d1cc6fe84cb37b9d3d4c
git.kernel.orghttps://git.kernel.org/stable/c/c905a3053518212a1017e50bd2be3bee59305bb0
git.kernel.orghttps://git.kernel.org/stable/c/2d542f13d26344e3452eee77613026ce9b653065
git.kernel.orghttps://git.kernel.org/stable/c/8d06e9208184b2851fa79a3a39d6860320c8bdf8
git.kernel.orghttps://git.kernel.org/stable/c/2e6c80423f201405fd65254e52decd21663896f3
git.kernel.orghttps://git.kernel.org/stable/c/d262a192d38e527faa5984629aabda2e0d1c4f54
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

01 Record index

CVE-2025-21866

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-21866

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References