PT-2025-8296 · Linux+3 · Linux Kernel+3

Trond Myklebust · Published 2022-05-31 · Updated 2025-09-29 · CVE-2022-49362

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 potential use-after-free issue has been identified in the Linux kernel, specifically within the NFSD component. The problem arises in the nfsd file put() function, where nfsd file put noref() can free the @nf object, and subsequently dereferencing @nf immediately after the return from nfsd file put noref() poses a risk.

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:2025-03963

CVE-2022-49362

RHSA-2023:2458

RHSA-2023_2458

SUSE-SU-2025:1176-1

SUSE-SU-2025:1241-1

SUSE-SU-2025_1241-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Suse

References · 1305

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49362.json · Exploit
• https://git.kernel.org/stable/c/b6c71c66b0ad8f2b59d9bc08c7a5079b110bec01 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49362 · Vendor Advisory
• https://git.kernel.org/stable/c/ada1757b259f353cade47037ee0a0249b4cddad3 · Patch
• https://git.kernel.org/stable/c/333dcc94ebf53f79f3dc0e7a7c16700bc7ff7e57 · Patch
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE135 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49362 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://git.kernel.org/stable/c/261eabe19cb28e4a8587a4442d257b543d7c2d57 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49362 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49362 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-03963 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-49362 · Vendor Advisory