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NVD / CVE Program· CNA Linux

CVE-2022-50568: usb: gadget: f_hid: fix f_hidg lifetime vs cdev

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: 0.22% (FIRST EPSS).
  • Fixed version: Linux Linux 1b6a53e447ec3d81623610c8c7ec5082b47dfdce, 1cd7f156f6389918f760687fbbf133c86da93162, 89ff3dfac604614287ad5aad9370c3f984ea3f4b.

Low priority for now. Upgrade to Linux Linux 1b6a53e447ec3d81623610c8c7ec5082b47dfdce, 1cd7f156f6389918f760687fbbf133c86da93162, 89ff3dfac604614287ad5aad9370c3f984ea3f4b 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: usb: gadget: f_hid: fix f_hidg lifetime vs cdev The embedded struct cdev does not have its lifetime correctly tied to the enclosing struct f_hidg, so there is a use-after-free if /dev/hidgN is held open while the gadget is deleted. This can readily be replicated with libusbgx's example programs (for conciseness - operating directly via configfs is equivalent): gadget-hid exec 3<> /dev/hidg0 gadget-vid-pid-remove exec 3<&- Pull the existing device up in to struct f_hidg and make use of the cdev_device_{add,del}() helpers. This changes the lifetime of the device object to match struct f_hidg, but note that it is still added and deleted at the same time.

—No exploit Fix available
Published
Oct 22, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 12th 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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Noroxi analysis

What does it mean in your environment?

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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

    • 2.6.35affected
    • 71adf118946957839a13aa4d1094183e05c6c094 and later · before 1cd7f156f6389918f760687fbbf133c86da93162affected · git
    • 71adf118946957839a13aa4d1094183e05c6c094 and later · before c78c87c4e389b62f8892af7f59857447aa6d9797affected · git
    • 71adf118946957839a13aa4d1094183e05c6c094 and later · before 1b6a53e447ec3d81623610c8c7ec5082b47dfdceaffected · git
    • 71adf118946957839a13aa4d1094183e05c6c094 and later · before d3136b79705c2e3bba9c76adc5628af0215d798eaffected · git
    • 71adf118946957839a13aa4d1094183e05c6c094 and later · before 9e4b85d815b14bd4db2deea2a54264a23de8b896affected · git
    • 71adf118946957839a13aa4d1094183e05c6c094 and later · before 9e08b7f5fa00e9d550851352bd0d1ba74ccffef2affected · git
    • 71adf118946957839a13aa4d1094183e05c6c094 and later · before 89ff3dfac604614287ad5aad9370c3f984ea3f4baffected · git
    • before 2.6.35not affected · semver
    • 4.19.270 and later · up to and including 4.19.*not affected · semver

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-2022-50566Oct 22, 2025 · mtd: Fix device name leak when register device failed in add_mtd_device()
    0Monitor
  • ← EarlierCVE-2022-50567Oct 22, 2025 · fs: jfs: fix shift-out-of-bounds in dbAllocAG
    31Monitor
  • Later →CVE-2022-50569Oct 22, 2025 · xfrm: Update ipcomp_scratches with NULL when freed
    31Monitor

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 Linux1b6a53e447ec3d81623610c8c7ec5082b47dfdceVendor (CNA)
Linux Linux1cd7f156f6389918f760687fbbf133c86da93162Vendor (CNA)
Linux Linux89ff3dfac604614287ad5aad9370c3f984ea3f4bVendor (CNA)
Linux Linux9e08b7f5fa00e9d550851352bd0d1ba74ccffef2Vendor (CNA)
Linux Linux9e4b85d815b14bd4db2deea2a54264a23de8b896Vendor (CNA)
Linux Linuxc78c87c4e389b62f8892af7f59857447aa6d9797Vendor (CNA)
Linux Linuxd3136b79705c2e3bba9c76adc5628af0215d798eVendor (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 (6 more)

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

All records