PT-2025-38342 · Linux+2 · Linux Kernel+2

Published 2022-12-07 · Updated 2025-11-24 · CVE-2022-50394

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

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

Description The Linux kernel contains a flaw within the ismt access() function related to insufficient bounds checking. Specifically, the driver does not validate data received from user space, potentially allowing the data->block[0] variable to become excessively large, leading to an out-of-bounds write. This issue can be observed through kernel logs indicating a KASAN (Kernel Address Sanitizer) out-of-bounds error during memory copy operations.

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

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2026-02277

CVE-2022-50394

SUSE-SU-2025:03615-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

SUSE-SU-2025:4189-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 1131

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50394.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-50394 · Security Note
• https://git.kernel.org/stable/c/cdcbae2c5003747ddfd14e29db9c1d5d7e7c44dd · Patch
• https://git.kernel.org/stable/c/9ac541a0898e8ec187a3fa7024b9701cffae6bf2 · Patch
• https://git.kernel.org/stable/c/03b7ef7a6c5ca1ff553470166b4919db88b810f6 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:4189-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02277 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-50394 · Vendor Advisory
• https://git.kernel.org/stable/c/233348a04becf133283f0076e20b317302de21d9 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50394 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:3761-1 · Vendor Advisory
• https://git.kernel.org/stable/c/96c12fd0ec74641295e1c3c34dea3dce1b6c3422 · Patch
• https://git.kernel.org/stable/c/4a7bb1d93addb2f67e36fed00a53cb7f270d7b7a · Patch
• https://git.kernel.org/stable/c/39244cc754829bf707dccd12e2ce37510f5b1f8d · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50394 · Vendor Advisory