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NVD / CVE Program· CNA Linux

CVE-2022-50663: net: stmmac: fix possible memory leak in stmmac_dvr_probe()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.23% (FIRST EPSS).
  • Fixed version: Linux Linux 446757787baf99b7db15cb347783c45a37bfe21f, 96e50897029f65222ef76cfe9bc802321fcea33b, a137f3f27f9290933fe7e40e6dc8a445781c31a2.

Low priority for now. Upgrade to Linux Linux 446757787baf99b7db15cb347783c45a37bfe21f, 96e50897029f65222ef76cfe9bc802321fcea33b, a137f3f27f9290933fe7e40e6dc8a445781c31a2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix possible memory leak in stmmac_dvr_probe() The bitmap_free() should be called to free priv->af_xdp_zc_qps when create_singlethread_workqueue() fails, otherwise there will be a memory leak, so we add the err path error_wq_init to fix it.

—No exploit Fix available
Published
Dec 9, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 14th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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  • when exploit code appears or is weaponized
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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

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

    • 5.13affected
    • bba2556efad66e7eaa56fece13f7708caa1187f8 and later · before 96e50897029f65222ef76cfe9bc802321fcea33baffected · git
    • bba2556efad66e7eaa56fece13f7708caa1187f8 and later · before b59253e32c203a20bce15dca80890b7d268bacd7affected · git
    • bba2556efad66e7eaa56fece13f7708caa1187f8 and later · before 446757787baf99b7db15cb347783c45a37bfe21faffected · git
    • bba2556efad66e7eaa56fece13f7708caa1187f8 and later · before a137f3f27f9290933fe7e40e6dc8a445781c31a2affected · git
    • before 5.13not affected · semver
    • 5.15.86 and later · up to and including 5.15.*not affected · semver
    • 6.0.16 and later · up to and including 6.0.*not affected · semver
    • 6.1.2 and later · up to and including 6.1.*not affected · semver
    • 6.2 and laternot affected · original_commit_for_fix

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.4-16.1.4-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2022-50661Dec 9, 2025 · seccomp: Move copy_seccomp() to no failure path.
    0Monitor
  • ← EarlierCVE-2022-50662Dec 9, 2025 · RDMA/hns: fix memory leak in hns_roce_alloc_mr()
    0Monitor
  • Later →CVE-2022-50664Dec 9, 2025 · media: dvb-frontends: fix leak of memory fw
    0Monitor

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 Linux446757787baf99b7db15cb347783c45a37bfe21fVendor (CNA)
Linux Linux96e50897029f65222ef76cfe9bc802321fcea33bVendor (CNA)
Linux Linuxa137f3f27f9290933fe7e40e6dc8a445781c31a2Vendor (CNA)
Linux Linuxb59253e32c203a20bce15dca80890b7d268bacd7Vendor (CNA)
debian:linux6.1.4-1 · 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.

No history yet (it accumulates with the daily EPSS job).

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

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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.

Change log

  1. Fix✗ → ✓

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References

Show all references (3 more)

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

All records