CVE-2022-50380 mm: /proc/pid/smaps_rollup: fix no vma's null-deref

What is CVE-2022-50380?

CVE-2022-50380 is a medium-severity vulnerability in Linux kernel, published on 18 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

mm: /proc/pid/smaps_rollup: fix no vma's null-deref

Commit 258f669e7e88 ("mm: /proc/pid/smaps_rollup: convert to single value seq_file") introduced a null-deref if there are no vma's in the task in show_smaps_rollup.

Weakness: CWE-476

Which versions are affected by CVE-2022-50380?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-50380?

Apply the vendor's patch.

Is CVE-2022-50380 being exploited?

There is no known exploitation of CVE-2022-50380 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2022-50380, GHSA-g7qm-6vv8-chvq, ROOT-OS-DEBIAN-11-CVE-2022-50380, ROOT-OS-UBUNTU-2204-CVE-2022-50380, ROOT-OS-UBUNTU-2404-CVE-2022-50380, UBUNTU-CVE-2022-50380.