01 Record

CVE-2025-39795

block: avoid possible overflow for chunk_sectors check in blk_stack_limits()

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

block: avoid possible overflow for chunk_sectors check in blk_stack_limits()

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: 0.17% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 6.1% 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: Modified. NVD last modified this record on 2026-07-14.
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

2025-09-12 15:59Z11 MO AGO

Last updated

2026-07-14 12:42Z1 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-674Uncontrolled RecursionClass
CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

b9370ea09abf6352adcafb321a813daac962ff37ea3c2cee2b4649cac59effa4

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux22ada802ede89829dd010a317d9b812b7df7111a to < 418751910044649baa2b424ea31cce3fc4dcc253, 22ada802ede89829dd010a317d9b812b7df7111a to < 8b3ce085b52e674290cbfdd07034e7653ffbe4dc, 22ada802ede89829dd010a317d9b812b7df7111a to < 31f2f080898e50cbf2bae62d35f9f2a997547b38, 22ada802ede89829dd010a317d9b812b7df7111a to < 3b9d69f0e68aa6b0acd9791c45d445154a8c66e9, 22ada802ede89829dd010a317d9b812b7df7111a to < 46aa80ef49594ed7de685ecbc673b291e9a2c159, 22ada802ede89829dd010a317d9b812b7df7111a to < 5e276e6ff9aacf8901b9c3265c3cdd2568c9fff2, 22ada802ede89829dd010a317d9b812b7df7111a to < 14beeef4aafecc8a41de534e31fb5be94739392f, 22ada802ede89829dd010a317d9b812b7df7111a to < 448dfecc7ff807822ecd47a5c052acedca7d09e8, 5.10—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/418751910044649baa2b424ea31cce3fc4dcc253
git.kernel.orghttps://git.kernel.org/stable/c/8b3ce085b52e674290cbfdd07034e7653ffbe4dc
git.kernel.orghttps://git.kernel.org/stable/c/31f2f080898e50cbf2bae62d35f9f2a997547b38
git.kernel.orghttps://git.kernel.org/stable/c/3b9d69f0e68aa6b0acd9791c45d445154a8c66e9
git.kernel.orghttps://git.kernel.org/stable/c/46aa80ef49594ed7de685ecbc673b291e9a2c159
git.kernel.orghttps://git.kernel.org/stable/c/5e276e6ff9aacf8901b9c3265c3cdd2568c9fff2
git.kernel.orghttps://git.kernel.org/stable/c/14beeef4aafecc8a41de534e31fb5be94739392f
git.kernel.orghttps://git.kernel.org/stable/c/448dfecc7ff807822ecd47a5c052acedca7d09e8
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
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-032379.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html

01 Record index

CVE-2025-39795

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-39795

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References