5.5

CVE-2022-50544: usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info()

Analyzed
AliasesUBUNTU-CVE-2022-50544DEBIAN-CVE-2022-50544
Published 07-10-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50544 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 (NVD)
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 9 · Related 7
RHSA-2023:6583RHSA-2023:7077SUSE-SU-2025:4111-1SUSE-SU-2025:4135-1SUSE-SU-2025:4139-1SUSE-SU-2025:4149-1

Timeline

  1. 07-10-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info() xhci_alloc_stream_info() allocates stream context array for stream_info ->stream_ctx_array with xhci_alloc_stream_ctx(). When some error occurs, stream_info->stream_ctx_array is not released, which will lead to a memory leak. We can fix it by releasing the stream_info->stream_ctx_array with xhci_free_stream_ctx() on the error path to avoid the potential memory leak.

CVSS metrics

4 scores · 3 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.

Ubuntu120 products
  • linuxAll versions (No fix recorded) | < 4.15.0-204.215 | < 5.4.0-139.156 | < 5.15.0-60.66
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1150.163 | < 5.4.0-1096.104 | < 5.15.0-1030.34
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 8df75f42f8e67e2851cdcf6da91640fb881defd1, < 7fc6bab3413e6a42bb1264ff7c9149808c93a4c7 | ≥ 8df75f42f8e67e2851cdcf6da91640fb881defd1, < e702de2f5c893bf2cdb0152191f99a6ad1411823 | ≥ 8df75f42f8e67e2851cdcf6da91640fb881defd1, < ddab9fe76296840aad686c66888a9c1dfdbff5ff | ≥ 8df75f42f8e67e2851cdcf6da91640fb881defd1, < 9fa81cbd2dd300aa8fe9bac70e068b9a11cbb144 | ≥ 8df75f42f8e67e2851cdcf6da91640fb881defd1, < 91271a3e772e180bbb8afb114c72fd294a02f93d | ≥ 8df75f42f8e67e2851cdcf6da91640fb881defd1, < fcd594da0b5955119d9707e4e0a8d0fb1c969101 | ≥ 8df75f42f8e67e2851cdcf6da91640fb881defd1, < a40ad475236022f3432880e3091c380e46e71a71 | ≥ 8df75f42f8e67e2851cdcf6da91640fb881defd1, < 782c873f8e7686f5b3c47e8b099f7e08c3dd1fdc | ≥ 8df75f42f8e67e2851cdcf6da91640fb881defd1, < 7e271f42a5cc3768cd2622b929ba66859ae21f97 | 2.6.35
  • linux_kernel≥ 2.6.35, < 4.9.331 | ≥ 4.10, < 4.14.296 | ≥ 4.15, < 4.19.262 | ≥ 4.20, < 5.4.220 | ≥ 5.5, < 5.10.150 | ≥ 5.11, < 5.15.75 | ≥ 5.16, < 5.19.17 | ≥ 6.0, < 6.0.3
Debian1 product
  • linux< 6.0.3-1

3 vendors · 123 products

References

13 links
Show all 13 references