01 Record

CVE-2025-39742

RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask()

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask()

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 6.8% 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: Moderate. 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

2025-09-11 16:52Z11 MO AGO

Last updated

2026-05-12 12:06Z3 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-369Divide By ZeroBase

Data version

5.2

Document digest

931387a37e50ebe5d853a34b5e0427b810ba9fe7125efe7b537357997e9d1434

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxb094a36f90975373c3a241839869217a65f17d81 to < 9bba1a9994c523b44db64f63b564b4719ea2b7ef, b094a36f90975373c3a241839869217a65f17d81 to < 1a7cf828ed861de5be1aff99e10f114b363c19d3, b094a36f90975373c3a241839869217a65f17d81 to < 9d3211cb61a0773a2440d0a0698c1e6e7429f907, b094a36f90975373c3a241839869217a65f17d81 to < 4b4317b0d758ff92ba96f4e448a8992a6fe607bf, b094a36f90975373c3a241839869217a65f17d81 to < 89fdac333a17ed990b41565630ef4791782e02f5, b094a36f90975373c3a241839869217a65f17d81 to < 9b05e91afe948ed819bf87d7ba0fccf451ed79a6, b094a36f90975373c3a241839869217a65f17d81 to < 31d0599a23efdbfe579bfbd1eb8f8c942f13744d, b094a36f90975373c3a241839869217a65f17d81 to < ac53f377393cc85156afdc90b636e84e544a6f96, b094a36f90975373c3a241839869217a65f17d81 to < 59f7d2138591ef8f0e4e4ab5f1ab674e8181ad3a, 4.8—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/9bba1a9994c523b44db64f63b564b4719ea2b7ef
git.kernel.orghttps://git.kernel.org/stable/c/1a7cf828ed861de5be1aff99e10f114b363c19d3
git.kernel.orghttps://git.kernel.org/stable/c/9d3211cb61a0773a2440d0a0698c1e6e7429f907
git.kernel.orghttps://git.kernel.org/stable/c/4b4317b0d758ff92ba96f4e448a8992a6fe607bf
git.kernel.orghttps://git.kernel.org/stable/c/89fdac333a17ed990b41565630ef4791782e02f5
git.kernel.orghttps://git.kernel.org/stable/c/9b05e91afe948ed819bf87d7ba0fccf451ed79a6
git.kernel.orghttps://git.kernel.org/stable/c/31d0599a23efdbfe579bfbd1eb8f8c942f13744d
git.kernel.orghttps://git.kernel.org/stable/c/ac53f377393cc85156afdc90b636e84e544a6f96
git.kernel.orghttps://git.kernel.org/stable/c/59f7d2138591ef8f0e4e4ab5f1ab674e8181ad3a
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-032379.html

01 Record index

CVE-2025-39742

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-39742

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References