PT-2025-40736 · Linux · Linux Kernel

Published 2025-10-04 · Updated 2026-04-20 · CVE-2022-50502

Positive Technologies (AI Summary)

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

Description A flaw exists in the Linux kernel related to the handling of Virtual Memory Areas (VMAs) within the /proc/pid/smaps rollup functionality. A null dereference can occur if a task has no VMAs. This issue was introduced by commit 258f669e7e88, which converted the functionality to use a single value sequence file.

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

Related Identifiers

CVE-2022-50502

Affected Products

Linux Kernel

References · 11

• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50502 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50502 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50502 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50502 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2022-50502 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2022-50502 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50502 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50502 · Security Note
• https://git.kernel.org/stable/c/6bb8769326c46db3058780c0640dcc49d8187b24 · Note
• https://git.kernel.org/linus/6bb8769326c46db3058780c0640dcc49d8187b24 · Note
• https://twitter.com/CVEnew/status/1974513823685198166 · Twitter Post