CVE-2022-50046

Kernel crash via SUNRPC NULL dereference

Published Jun 18, 2025 · Updated May 11, 2026

Memory-management errors in Linux allow attackers to leak kernel references or dereference NULL via SUNRPC sysfs error paths. The rpc_sysfs_xprt_state_change() error path returns after a failed xprt lookup without releasing an xps reference and uses xps without first checking for NULL. Triggering the failure requires access to the SUNRPC transport-state sysfs operation; the public record specifies neither the required privileges nor a reliable trigger.

CVSS severityUnavailable
Unscored
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Memory-management errors in Linux allow attackers to leak kernel references or dereference NULL via SUNRPC sysfs error paths. The rpc_sysfs_xprt_state_change() error path returns after a failed xprt lookup without releasing an xps reference and uses xps without first checking for NULL. Triggering the failure requires access to the SUNRPC transport-state sysfs operation; the public record specifies neither the required privileges nor a reliable trigger.

The record

CVE
CVE-2022-50046
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Jun 18, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.14
  2. Affected versionversion=5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b <76fbeb1662b1c56514325118a07fba74dc4c79fe
  3. Affected versionversion=5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b <bfc48f1b0505ffcb03a6d749139b7577d6b81ae0
  4. Affected versionversion=5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b <c0434f0e058648649250b8ed6078b66d773de723

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=5.14; version=5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b <76fbeb1662b1c56514325118a07fba74dc4c79fe; version=5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b <bfc48f1b0505ffcb03a6d749139b7577d6b81ae0; version=5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b <c0434f0e058648649250b8ed6078b66d773de723

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo