5.5

CVE-2022-50404: fbdev: fbcon: release buffer when fbcon_do_set_font() failed

Analyzed
AliasesUBUNTU-CVE-2022-50404DEBIAN-CVE-2022-50404
Published 18-09-2025Last modified 23-05-2026

Vulnerability summary

CVE-2022-50404 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.16%
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 4 · Related 4
SUSE-SU-2025:03615-1SUSE-SU-2025:03628-1SUSE-SU-2025:3716-1SUSE-SU-2025:3761-1

Timeline

  1. 18-09-2025
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbcon: release buffer when fbcon_do_set_font() failed syzbot is reporting memory leak at fbcon_do_set_font() [1], for commit a5a923038d70 ("fbdev: fbcon: Properly revert changes when vc_resize() failed") missed that the buffer might be newly allocated by fbcon_set_font().

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.16% 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.

Ubuntu103 products
  • linux< 5.15.0-69.76
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1033.37
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 868749a7456dc48e93887a8474194e2ee6d6c21f, < 5a341810a22e51c3a7a108f7896b5fd58d44d127 | ≥ ebd6f886aa2447fcfcdce5450c9e1028e1d681bb, < 88ec6d11052da527eb9268831e7a9bc5bbad02f6 | ≥ a5a923038d70d2d4a86cb4e3f32625a5ee6e7e24, < 06926607b9fddf7ce8017493899ce6eb7e79a123 | ≥ a5a923038d70d2d4a86cb4e3f32625a5ee6e7e24, < a609bfc1e644a8467cb31945ed1488374ebdc013 | ≥ a5a923038d70d2d4a86cb4e3f32625a5ee6e7e24, < 3c3bfb8586f848317ceba5d777e11204ba3e5758 | f08ccb792d3eaf1dc62d8cbf6a30d6522329f660 | ≥ 5.15.64, < 5.15.86 | ≥ 5.19.6, < 5.20 | 6.0
  • linux_kernelEOL≥ 5.15.64, < 5.15.86 | ≥ 5.19.6, < 6.0 | ≥ 6.0.1, < 6.0.16 | ≥ 6.1, < 6.1.2 | 6.0 | 6.0:rc3 | 6.0:rc4 | 6.0:rc5 | 6.0:rc6 | 6.0:rc7
Debian1 product
  • linux< 6.1.4-1

3 vendors · 106 products

References

9 links