PT-2025-18880 · Linux+4 · Linux Kernel+4

Published 2023-03-15 · Updated 2026-02-02 · CVE-2023-53116

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description A use-after-free issue has been identified in the Linux kernel, specifically in the nvmet component. This issue arises when the queue response() operation in an NVMe target implementation frees the request passed as an argument, potentially resulting in a use-after-free of the request pointer when percpu ref put() is called in nvmet req complete(). The problem is avoided by using a local variable to save the sq pointer before calling nvmet req complete(), thus preventing dereferencing of the req pointer after the function call.

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

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALSA-2025_16880

BDU:2026-03857

CVE-2023-53116

OESA-2025-1513

RHSA-2023:6583

RHSA-2023_6583

SUSE-SU-2025:01918-1

SUSE-SU-2025:01966-1

SUSE-SU-2025:02173-1

SUSE-SU-2025:02262-1

SUSE-SU-2025:2173-1

SUSE-SU-2025_02173-1

SUSE-SU-2025_02262-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Red Os

Suse

References · 475

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53116.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-49915 · Security Note
• https://git.kernel.org/stable/c/bcd535f07c58342302a2cd2bdd8894fe0872c8a9 · Patch
• https://cve.org/CVERecord?id=CVE-2023-53116 · Security Note
• https://git.kernel.org/stable/c/04c394208831d5e0d5cfee46722eb0f033cd4083 · Patch
• https://bdu.fstec.ru/vul/2026-03857 · Security Note
• https://osv.dev/vulnerability/CVE-2023-53116 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49850 · Security Note
• https://git.kernel.org/stable/c/fafcb4b26393870c45462f9af6a48e581dbbcf7e · Patch
• https://git.kernel.org/stable/c/6173a77b7e9d3e202bdb9897b23f2a8afe7bf286 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-53090 · Security Note
• https://git.kernel.org/stable/c/e5d99b29012bbf0e86929403209723b2806500c1 · Patch
• https://git.kernel.org/stable/c/f1d5888a5efe345b63c430b256e95acb0a475642 · Patch
• https://git.kernel.org/stable/c/8ed9813871038b25a934b21ab76b5b7dbf44fc3a · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53116 · Vendor Advisory