5.5

CVE-2022-49881: wifi: cfg80211: fix memory leak in query_regdb_file()

Modified
AliasesUBUNTU-CVE-2022-49881DEBIAN-CVE-2022-49881
Published 01-05-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-49881 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.6% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.20%
0%100%
Low · +0.01 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 7 · Related 7
SUSE-SU-2025:01918-1SUSE-SU-2025:01966-1SUSE-SU-2025:01982-1SUSE-SU-2025:01995-1SUSE-SU-2025:02173-1SUSE-SU-2025:02262-1

Timeline

  1. 01-05-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix memory leak in query_regdb_file() In the function query_regdb_file() the alpha2 parameter is duplicated using kmemdup() and subsequently freed in regdb_fw_cb(). However, request_firmware_nowait() can fail without calling regdb_fw_cb() and thus leak memory.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.19% on 22-09-2026

22-09-202622-10-2026

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

Ubuntu112 products
  • linux< 4.15.0-206.217 | < 5.4.0-144.161 | < 5.15.0-67.74
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.15.0-1151.164 | < 5.4.0-1097.105 | < 5.15.0-1031.35
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 007f6c5e6eb45c81ee89368a5f226572ae638831, < 219446396786330937bcd382a7bc4ccd767383bc | ≥ 007f6c5e6eb45c81ee89368a5f226572ae638831, < 0ede1a988299e95d54bd89551fd635980572e920 | ≥ 007f6c5e6eb45c81ee89368a5f226572ae638831, < e1e12180321f416d83444f2cdc9259e0f5093d35 | ≥ 007f6c5e6eb45c81ee89368a5f226572ae638831, < 38c9fa2cc6bf4b6e1a74057aef8b5cffd23d3264 | ≥ 007f6c5e6eb45c81ee89368a5f226572ae638831, < e9b5a4566d5bc71cc901be50d1fa24da00613120 | ≥ 007f6c5e6eb45c81ee89368a5f226572ae638831, < 57b962e627ec0ae53d4d16d7bd1033e27e67677a | 4.15
  • linux_kernel≥ 4.15, < 4.19.267 | ≥ 4.20, < 5.4.225 | ≥ 5.5, < 5.10.155 | ≥ 5.11, < 5.15.79 | ≥ 5.16, < 6.0.9 | 6.1:rc1 | 6.1:rc2 | 6.1:rc3 | 6.1:rc4
Debian1 product
  • linux< 6.0.10-1

3 vendors · 115 products

References

10 links