01 Record

CVE-2025-38563

perf/core: Prevent VMA split of buffer mappings

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

perf/core: Prevent VMA split of buffer mappings

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.38% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 31.1% of scored records. A rank, not a probability.
NVD base score: 7.8 (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:H/I:H/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

2025-08-19 17:02Z1 YR AGO

Last updated

2026-05-11 21:30Z3 MO AGO

Reserved

2025-04-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-911Improper Update of Reference CountBase

Data version

5.2

Document digest

783ec160960c1931a6450d9192bc523caf5bb0ea1622f36633bf37b6494036ab

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux45bfb2e50471abbbfd83d40d28c986078b0d24ff to < e4346ffec2c44d6b0be834d59b20632b5bb5729e, 45bfb2e50471abbbfd83d40d28c986078b0d24ff to < d52451a9210f2e5a079ba052918c93563518a9ff, 45bfb2e50471abbbfd83d40d28c986078b0d24ff to < 3bd518cc7ea61076bcd725e36ff0e690754977c0, 45bfb2e50471abbbfd83d40d28c986078b0d24ff to < 7b84cb58d1f0aa07656802eae24689566e5f5b1b, 45bfb2e50471abbbfd83d40d28c986078b0d24ff to < 6757a31a8e295ae4f01717a954afda173f25a121, 45bfb2e50471abbbfd83d40d28c986078b0d24ff to < e529888b7e8092912dd8789bdfc76685ccd2ff5f, 45bfb2e50471abbbfd83d40d28c986078b0d24ff to < ff668930871e0198c7f4e325058b8b7c286787bd, 45bfb2e50471abbbfd83d40d28c986078b0d24ff to < 65311aad4c808bedad0c05d9bb8b06c47dae73eb, 45bfb2e50471abbbfd83d40d28c986078b0d24ff to < b024d7b56c77191cde544f838debb7f8451cd0d6, 4.1—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/e4346ffec2c44d6b0be834d59b20632b5bb5729e
git.kernel.orghttps://git.kernel.org/stable/c/d52451a9210f2e5a079ba052918c93563518a9ff
git.kernel.orghttps://git.kernel.org/stable/c/3bd518cc7ea61076bcd725e36ff0e690754977c0
git.kernel.orghttps://git.kernel.org/stable/c/7b84cb58d1f0aa07656802eae24689566e5f5b1b
git.kernel.orghttps://git.kernel.org/stable/c/6757a31a8e295ae4f01717a954afda173f25a121
git.kernel.orghttps://git.kernel.org/stable/c/e529888b7e8092912dd8789bdfc76685ccd2ff5f
git.kernel.orghttps://git.kernel.org/stable/c/ff668930871e0198c7f4e325058b8b7c286787bd
git.kernel.orghttps://git.kernel.org/stable/c/65311aad4c808bedad0c05d9bb8b06c47dae73eb
git.kernel.orghttps://git.kernel.org/stable/c/b024d7b56c77191cde544f838debb7f8451cd0d6
www.zerodayinitiative.comhttps://www.zerodayinitiative.com/advisories/ZDI-25-873/
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.html

01 Record index

CVE-2025-38563

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-38563

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References