PT-2024-11344 · Linux+3 · Linux Kernel+3

Gerd Rausch · Published 2021-06-25 · Updated 2025-09-02 · CVE-2021-47345

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Description A memory leak occurs when mda resolve route() is called more than once on the same rdma cm id. This can happen if cma query handler() triggers the RDMA CM EVENT ROUTE ERROR flow, which puts the state machine back and allows rdma resolve route() to be called again.

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

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

BDU:2025-07404

CVE-2021-47345

SUSE-SU-2024:1979-1

SUSE-SU-2024:1983-1

SUSE-SU-2024:2184-1

USN-7727-1

USN-7727-2

USN-7727-3

Affected Products

Astra Linux

Linux Kernel

Suse

Ubuntu

References · 475

• https://osv.dev/vulnerability/USN-7727-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1983-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37752 · Vendor Advisory
• https://git.kernel.org/stable/c/032c68b4f5be128a2167f35b558b7cec88fe4972 · Patch
• https://git.kernel.org/stable/c/e2da8ce2a9543f3ca5c93369bd1fe6eeb572101a · Patch
• https://ubuntu.com/security/notices/USN-7727-1 · Vendor Advisory
• https://git.kernel.org/stable/c/07583ba2e2d8947c3d365d97608cb436510885ac · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1979-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-07404 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47345 · Vendor Advisory
• https://git.kernel.org/stable/c/40b613db3a95bc27998e4097d74c2f7e5d083a0b · Patch
• https://ubuntu.com/security/CVE-2021-47345 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50202 · Vendor Advisory
• https://git.kernel.org/stable/c/74f160ead74bfe5f2b38afb4fcf86189f9ff40c9 · Patch
• https://ubuntu.com/security/CVE-2024-50051 · Vendor Advisory