PT-2025-37201 · Linux+6 · Linux Kernel+6

Published 2025-06-04 · Updated 2026-05-26 · CVE-2025-39742

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Linux kernel (affected versions not specified)

Description: A flaw exists in the Linux kernel related to RDMA and the hfi1 driver. A divide-by-zero error could occur within the find hw thread mask() function due to a division operation where the divisor, num core siblings, could be zero. This condition could lead to a runtime error. The issue was addressed by moving the check for a zero divisor before the division operation.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

BDU:2025-14997

CVE-2025-39742

DLA-4327-1

DLA-4328-1

DSA-6009-1

ECHO-6B87-E23C-AA12

OESA-2025-2633

OESA-2025-2634

OESA-2025-2635

OPENSUSE-SU-2025:20081-1

SUSE-SU-2025:03600-1

SUSE-SU-2025:03634-1

SUSE-SU-2025:20851-1

SUSE-SU-2025:20861-1

SUSE-SU-2025:20870-1

SUSE-SU-2025:20898-1

SUSE-SU-2025:21074-1

SUSE-SU-2025:21139-1

SUSE-SU-2025:21179-1

SUSE-SU-2025:3751-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4111-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4139-1

SUSE-SU-2025:4141-1

SUSE-SU-2025:4149-1

SUSE-SU-2025:4320-1

SUSE-SU-2026:0487-1

SUSE-SU-2026:0489-1

SUSE-SU-2026:0490-1

SUSE-SU-2026:0526-1

SUSE-SU-2026:0528-1

SUSE-SU-2026:0533-1

SUSE-SU-2026:0535-1

SUSE-SU-2026:0539-1

SUSE-SU-2026:0542-1

SUSE-SU-2026:0543-1

SUSE-SU-2026:0544-1

SUSE-SU-2026:0546-1

SUSE-SU-2026:0548-1

SUSE-SU-2026:0550-1

SUSE-SU-2026:0554-1

SUSE-SU-2026:0555-1

SUSE-SU-2026:0556-1

SUSE-SU-2026:0560-1

SUSE-SU-2026:0565-1

SUSE-SU-2026:0566-1

SUSE-SU-2026:20455-1

SUSE-SU-2026:20456-1

SUSE-SU-2026:20457-1

SUSE-SU-2026:20458-1

SUSE-SU-2026:20459-1

SUSE-SU-2026:20460-1

SUSE-SU-2026:20461-1

SUSE-SU-2026:20462-1

SUSE-SU-2026:20463-1

SUSE-SU-2026:20464-1

SUSE-SU-2026:20465-1

SUSE-SU-2026:20466-1

SUSE-SU-2026:20470-1

SUSE-SU-2026:20471-1

SUSE-SU-2026:20499-1

SUSE-SU-2026:20500-1

SUSE-SU-2026:20501-1

SUSE-SU-2026:20502-1

SUSE-SU-2026:20503-1

SUSE-SU-2026:20504-1

SUSE-SU-2026:20505-1

SUSE-SU-2026:20511-1

SUSE-SU-2026:20512-1

SUSE-SU-2026:20513-1

SUSE-SU-2026:20514-1

SUSE-SU-2026:20515-1

SUSE-SU-2026:20516-1

SUSE-SU-2026:20517-1

SUSE-SU-2026:20635-1

SUSE-SU-2026:20644-1

SUSE-SU-2026:20645-1

USN-7909-1

USN-7909-2

USN-7909-3

USN-7909-4

USN-7909-5

USN-7910-1

USN-7910-2

USN-7933-1

USN-7938-1

USN-8028-1

USN-8028-2

USN-8028-3

USN-8028-4

USN-8028-5

USN-8028-6

USN-8028-7

USN-8028-8

USN-8031-1

USN-8031-2

USN-8031-3

USN-8052-1

USN-8052-2

USN-8074-1

USN-8074-2

USN-8126-1

Affected Products

Debian

Linuxmint

Linux Kernel

Red Os

Suse

Ubuntu

Hfi1 Driver

References · 3834

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39742.json · Exploit
• https://ubuntu.com/security/CVE-2025-68222 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38396 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38576 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-22128 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38217 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39795 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-4328-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40049 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68180 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38584 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68201 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39947 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0544-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40080 · Vendor Advisory