5.5

CVE-2022-49821: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2022-49821DEBIAN-CVE-2022-49821
Published 01-05-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2022-49821 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 (NVD)
EPSS score
0.20%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known 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-2025:01983-1SUSE-SU-2025:01995-1SUSE-SU-2025:02173-1

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: mISDN: fix possible memory leak in mISDN_dsp_element_register() Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically, use put_device() to give up the reference, so that the name can be freed in kobject_cleanup() when the refcount is 0. The 'entry' is going to be freed in mISDN_dsp_dev_release(), so the kfree() is removed. list_del() is called in mISDN_dsp_dev_release(), so it need be initialized.

CVSS metrics

3 scores · 3 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

+0.01 pp

From 0.19% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.20%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu113 products
  • linuxAll versions (No fix recorded) | < 4.15.0-206.217 | < 5.4.0-144.161 | < 5.15.0-67.74
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 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≥ 1fa5ae857bb14f6046205171d98506d8112dd74e, < bbd53d05c4c892080ef3b617eff4f57903acecb9 | ≥ 1fa5ae857bb14f6046205171d98506d8112dd74e, < b119bedbefb7dd9ed8bf8cb9f1056504250d610e | ≥ 1fa5ae857bb14f6046205171d98506d8112dd74e, < 727ed7d28348c026c7ef4d852f3d0e5054d376e8 | ≥ 1fa5ae857bb14f6046205171d98506d8112dd74e, < 0f2c681900a01e3f23789bca26d88268c3d5b51d | ≥ 1fa5ae857bb14f6046205171d98506d8112dd74e, < 083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47 | ≥ 1fa5ae857bb14f6046205171d98506d8112dd74e, < 7a05e3929668c8cfef495c69752a9e91fac4878f | ≥ 1fa5ae857bb14f6046205171d98506d8112dd74e, < d4b8394725079670be309f9a35ad88a8cbbaaefd | ≥ 1fa5ae857bb14f6046205171d98506d8112dd74e, < 98a2ac1ca8fd6eca6867726fe238d06e75eb1acd | 2.6.30
  • linux_kernel≥ 2.6.30, < 4.9.334 | ≥ 4.10, < 4.14.300 | ≥ 4.15, < 4.19.267 | ≥ 4.20, < 5.4.225 | ≥ 5.5, < 5.10.156 | ≥ 5.11, < 5.15.80 | ≥ 5.16, < 6.0.10 | 6.1:rc1 | 6.1:rc2 | 6.1:rc3 | 6.1:rc4 | 6.1:rc5
Debian1 product
  • linux< 6.0.10-1

3 vendors · 116 products

References

12 links
Show all 12 references