PT-2025-13372 · Linux+5 · Linux Kernel+5

Published 2023-11-07 · Updated 2025-09-29 · CVE-2023-53026

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 vulnerability in the Linux kernel has been resolved, related to the RDMA/core component. The issue occurs when registering a new DMA MR after selecting the best aligned page size for it. In certain circumstances, the total size of the aligned pages needed to cover an sg entry can be greater than or equal to 4GB, causing a counter overflow. This can lead to an infinite loop inside the iterator function. The vulnerability is related to the sglist and page size, and the counter responsible for counting the advancement from the start of the sg entry is of type u32, which overflows when passing a size of 4GB.

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

Exploit

DoS

Infinite Loop

Integer Overflow

Weakness Enumeration

CWE-835

CWE-190

Related Identifiers

ALSA-2025_16880

BDU:2025-06340

CESA-2023_7077

CVE-2023-53026

OPENSUSE-SU-2025_01633-1

OPENSUSE-SU-2025_1195-1

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_7077

SUSE-SU-2025:01633-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1195-1

SUSE-SU-2025:1241-1

SUSE-SU-2025:1574-1

SUSE-SU-2025_01633-1

SUSE-SU-2025_1195-1

SUSE-SU-2025_1241-1

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Red Os

Suse

References · 1370

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53026.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53026 · Vendor Advisory
• https://git.kernel.org/stable/c/43811d07ea64366af8ec9e168c558ec51440c39e · Patch
• https://security-tracker.debian.org/tracker/CVE-2023-53026 · Vendor Advisory
• https://git.kernel.org/stable/c/362c9489720b31b6aa7491423ba65a4e98aa9838 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1183-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53026 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://git.kernel.org/stable/c/0afec5e9cea732cb47014655685a2a47fb180c31 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53026 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-06340 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:1574-1 · Vendor Advisory
• https://git.kernel.org/stable/c/d66c1d4178c219b6e7d7a6f714e3e3656faccc36 · Patch
• https://osv.dev/vulnerability/CVE-2023-53026 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53026 · Vendor Advisory