3.3

CVE-2021-46934: i2c: validate user data in compat ioctl

Modified
AliasesUBUNTU-CVE-2021-46934DEBIAN-CVE-2021-46934
Published 27-02-2024Last modified 11-05-2026

Vulnerability summary

CVE-2021-46934 is a low (CVSS 3.3) vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 14.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 3.3, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
3.3/10
010
Low · v3.1 (NVD)
EPSS score
0.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 9
RHSA-2024:3618RHSA-2024:3627SUSE-SU-2024:0855-1SUSE-SU-2024:0856-1SUSE-SU-2024:0857-1SUSE-SU-2024:0900-1

Timeline

  1. 27-02-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.23% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu87 products
  • linux< 4.15.0-173.182 | < 5.4.0-105.119
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.15.0-1124.133 | < 5.4.0-1069.73
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 7d5cb45655f2e9e37ef75d18f50c0072ef14a38b, < 407c8708fb1bf2d4afc5337ef50635cf540c364b | ≥ 7d5cb45655f2e9e37ef75d18f50c0072ef14a38b, < 9e4a3f47eff476097e0c7faac04d1831fc70237d | ≥ 7d5cb45655f2e9e37ef75d18f50c0072ef14a38b, < 8d31cbab4c295d7010ebb729e9d02d0e9cece18f | ≥ 7d5cb45655f2e9e37ef75d18f50c0072ef14a38b, < f68599581067e8a5a8901ba9eb270b4519690e26 | ≥ 7d5cb45655f2e9e37ef75d18f50c0072ef14a38b, < bb436283e25aaf1533ce061605d23a9564447bdf | 4.15
  • linux_kernel≥ 4.15.0, < 4.19.224 | ≥ 4.20.0, < 5.4.170 | ≥ 5.5.0, < 5.10.90 | ≥ 5.11.0, < 5.15.13
Debian1 product
  • linux< 5.15.15-1

3 vendors · 90 products

References

9 links