What is CVE-2021-46934?

CVE-2021-46934 is a low-severity vulnerability in Linux, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 3.3/10. Published 2024-02-27.

How severe is CVE-2021-46934?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in Linux

CVE-2021-46934

In the Linux kernel, the following vulnerability has been resolved: i2c: validate user data in compat ioctl Wrong user data may cause warning in i2c_transfer(), ex: zero msgs. Userspace should not be able to trigger warnings, so this patch adds validation checks for user data in compact ioctl to prevent reported warnings

Published 2024-02-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (12.8th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Linux — versions 7d5cb45655f2e9e37ef75d18f50c0072ef14a38b, 4.15, 0
Linux Kernel

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2021-46934?: CVE-2021-46934 is a low-severity vulnerability in Linux, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 3.3/10. Published 2024-02-27.
How severe is CVE-2021-46934?: Low severity. CVSS v3 base score is 3.3 out of 10.