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CVE-2022-50446

20
FAUCET Score

CVE-2022-50446 is a memory leakage vulnerability in the Linux kernel affecting all ARC CPUs, introduced in kernel stable release v5.15-rc1. The flaw stems from an incorrect handling of page table entries (PTEs) during process termination, where allocated memory for PTEs is not properly released. With a CVSS score of 5.5 (Medium), this local vulnerability (AV:L) has low attack complexity (AC:L) and requires low privileges (PR:L), leading to high availability impact (A:H) as repeated memory allocation can exhaust system resources. There is no evidence of active exploitation, nor are there publicly available exploit tools like Metasploit or Nuclei modules, and it has garnered minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.15, < 5.15.77CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.0.7CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
4.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 25th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2022-50446

kernel: ARC: mm: fix leakage of memory allocated for PTE

Oct 1, 2025

References

git.kernel.org / stable/c/14009ada5712649589ab4ad0441b811780ea8773
Patch
git.kernel.org / stable/c/4fd9df10cb7a9289fbd22d669f9f98164d95a1ce
Patch
git.kernel.org / stable/c/d83a69966e8b6ae9dd447f3ac704c0223bceb7f7
Patch