PT-2025-38336 · Linux+4 · Linux Kernel+4

Published 2022-12-22 · Updated 2025-11-28 · CVE-2022-50388

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to 5.15.67

Description A flaw exists in the Linux kernel's NVMe subsystem related to handling flush requests when blktrace is enabled with multipath activated. Specifically, a NULL pointer dereference within the blk add trace bio complete function can occur, leading to a kernel crash. This issue arises when a flush request with a NULL bio is processed during I/O completion.

Recommendations Update the Linux Kernel to a version newer than 5.15.67 to resolve this issue.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-02437

CESA-2023_7077

CVE-2022-50388

RHSA-2023:2458

RHSA-2023:7077

RHSA-2023_2458

RHSA-2023_7077

SUSE-SU-2025:03615-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

SUSE-SU-2025:4135-1

SUSE-SU-2025:4171-1

SUSE-SU-2025:4172-1

SUSE-SU-2025:4188-1

SUSE-SU-2025:4203-1

SUSE-SU-2025:4213-1

SUSE-SU-2025:4285-1

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Suse

References · 964

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50388.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2025:4135-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02437 · Security Note
• https://git.kernel.org/stable/c/f13301a69ababa6c2236fb4f0393b7e914e7e1e0 · Patch
• https://git.kernel.org/stable/c/fcd2d199486033223e9b2a6a7f9a01dd0327eac3 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-50388 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4285-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50388 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50388 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50388 · Security Note
• https://git.kernel.org/stable/c/4df413d46960f11c8c105238cfc3f5ff4c95c003 · Patch
• https://git.kernel.org/stable/c/3659fb5ac29a5e6102bebe494ac789fd47fb78f4 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:4203-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4213-1 · Vendor Advisory