5.5

CVE-2021-47020: soundwire: stream: fix memory leak in stream config error path

Analyzed
AliasesUBUNTU-CVE-2021-47020DEBIAN-CVE-2021-47020
Published 29-02-2024Last modified 11-05-2026

Vulnerability summary

CVE-2021-47020 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.3% 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 (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 3 · Related 3
SUSE-SU-2024:1454-1SUSE-SU-2024:1465-1SUSE-SU-2024:1489-1

Timeline

  1. 29-02-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: soundwire: stream: fix memory leak in stream config error path When stream config is failed, master runtime will release all slave runtime in the slave_rt_list, but slave runtime is not added to the list at this time. This patch frees slave runtime in the config error path to fix the memory leak.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

13%

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.

Ubuntu82 products
  • linux< 5.4.0-77.86
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1051.53
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 89e590535f32d4bc548bcf266f3b046e50942f6d, < 342260fe821047c3d515e3d28085d73fbdce3e80 | ≥ 89e590535f32d4bc548bcf266f3b046e50942f6d, < 870533403ffa28ff63e173045fc5369365642002 | ≥ 89e590535f32d4bc548bcf266f3b046e50942f6d, < 7c468deae306d0cbbd539408c26cfec04c66159a | ≥ 89e590535f32d4bc548bcf266f3b046e50942f6d, < 2f17ac005b320c85d686088cfd4c2e7017912b88 | ≥ 89e590535f32d4bc548bcf266f3b046e50942f6d, < effd2bd62b416f6629e18e3ce077c60de14cfdea | ≥ 89e590535f32d4bc548bcf266f3b046e50942f6d, < 48f17f96a81763c7c8bf5500460a359b9939359f | 4.18
  • linux_kernel≥ 4.18, < 4.19.191 | ≥ 4.20, < 5.4.119 | ≥ 5.5, < 5.10.37 | ≥ 5.11, < 5.11.21 | ≥ 5.12, < 5.12.4
Debian1 product
  • linux< 5.10.38-1

3 vendors · 85 products

References

10 links