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CVE-2022-50544· NVD / CVE Program· CNA Linux

usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info()

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.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Oct 7, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 4th percentile
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Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Affected systems

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel2.6.35 and later · before 4.9.331
  • linux linux kernel4.10 and later · before 4.14.296
  • linux linux kernel4.15 and later · before 4.19.262
  • linux linux kernel4.20 and later · before 5.4.220
  • linux linux kernel5.5 and later · before 5.10.150
  • linux linux kernel5.11 and later · before 5.15.75
  • linux linux kernel5.16 and later · before 5.19.17
  • linux linux kernel6.0 and later · before 6.0.3

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.35affected
    • 8df75f42f8e67e2851cdcf6da91640fb881defd1 and later · before 7fc6bab3413e6a42bb1264ff7c9149808c93a4c7affected · git
    • 8df75f42f8e67e2851cdcf6da91640fb881defd1 and later · before e702de2f5c893bf2cdb0152191f99a6ad1411823affected · git
    • 8df75f42f8e67e2851cdcf6da91640fb881defd1 and later · before ddab9fe76296840aad686c66888a9c1dfdbff5ffaffected · git
    • 8df75f42f8e67e2851cdcf6da91640fb881defd1 and later · before 9fa81cbd2dd300aa8fe9bac70e068b9a11cbb144affected · git
    • 8df75f42f8e67e2851cdcf6da91640fb881defd1 and later · before 91271a3e772e180bbb8afb114c72fd294a02f93daffected · git
    • 8df75f42f8e67e2851cdcf6da91640fb881defd1 and later · before fcd594da0b5955119d9707e4e0a8d0fb1c969101affected · git
    • 8df75f42f8e67e2851cdcf6da91640fb881defd1 and later · before a40ad475236022f3432880e3091c380e46e71a71affected · git
    • 8df75f42f8e67e2851cdcf6da91640fb881defd1 and later · before 782c873f8e7686f5b3c47e8b099f7e08c3dd1fdcaffected · git
    • 8df75f42f8e67e2851cdcf6da91640fb881defd1 and later · before 7e271f42a5cc3768cd2622b929ba66859ae21f97affected · git

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.3-16.0.3-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now
  • CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
    77This week
  • CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
    77This week
  • CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV
    77This week

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux782c873f8e7686f5b3c47e8b099f7e08c3dd1fdcVendor (CNA)
Linux Linux7e271f42a5cc3768cd2622b929ba66859ae21f97Vendor (CNA)
Linux Linux7fc6bab3413e6a42bb1264ff7c9149808c93a4c7Vendor (CNA)
Linux Linux91271a3e772e180bbb8afb114c72fd294a02f93dVendor (CNA)
Linux Linux9fa81cbd2dd300aa8fe9bac70e068b9a11cbb144Vendor (CNA)
Linux Linuxa40ad475236022f3432880e3091c380e46e71a71Vendor (CNA)
Linux Linuxddab9fe76296840aad686c66888a9c1dfdbff5ffVendor (CNA)
Linux Linuxe702de2f5c893bf2cdb0152191f99a6ad1411823Vendor (CNA)
Linux Linuxfcd594da0b5955119d9707e4e0a8d0fb1c969101Vendor (CNA)
debian:linux6.0.3-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-401 · Missing Release of Memory after Effective Lifetime

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records