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CVE-2022-50318· NVD / CVE Program· CNA Linux

perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox()

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.16% (FIRST EPSS).
  • 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.
  • Fixed version: Linux Linux 1ff9dd6e7071a561f803135c1d684b13c7a7d01d, 3485f197518061371568f842405159aa9e4df551, 4.19.270.

Low priority for now. Upgrade to Linux Linux 1ff9dd6e7071a561f803135c1d684b13c7a7d01d, 3485f197518061371568f842405159aa9e4df551, 4.19.270 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: perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox() pci_get_device() will increase the reference count for the returned 'dev'. We need to call pci_dev_put() to decrease the reference count. Since 'dev' is only used in pci_read_config_dword(), let's add pci_dev_put() right after it.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Sep 15, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 4th percentile
CWE
—

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 · 0.1%

Get told when this record changes

  • 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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  • when EPSS rises 20 points in a week

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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.

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 kernel4.19.189 and later · before 4.19.270
  • linux linux kernel5.4.115 and later · before 5.4.229
  • linux linux kernel5.10.33 and later · before 5.10.163
  • linux linux kernel5.11.17 and later · before 5.12
  • linux linux kernel5.12.1 and later · before 5.15.86
  • linux linux kernel5.16 and later · before 6.0.16
  • linux linux kernel6.1 and later · before 6.1.2
  • linux linux kernel5.12

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

    • d2c79105a90323a2a93484c85f9ac419ae9b183d, 5.12affected
    • a8e87042482fd2d31c5cee62875b2ae75759ae8b and later · before 5a96c10a56037db006ba6769307a9731cf6073beaffected · git
    • 319a06e58ed7f1443f7133c05513de470f90628d and later · before e293263248f25c6b8aa1caf7c1103d40aa03311eaffected · git
    • 6f8315e5d9511ed1cf28ee2afbc9f89ff693de7b and later · before c0539d5d474ee6fa4ebc41f927a0f98f81244f25affected · git
    • 9d480158ee86ad606d3a8baaf81e6b71acbfd7d5 and later · before 3485f197518061371568f842405159aa9e4df551affected · git
    • 9d480158ee86ad606d3a8baaf81e6b71acbfd7d5 and later · before 48f32b9a74e2ac8e854bb87bfefdbc745125a123affected · git
    • 9d480158ee86ad606d3a8baaf81e6b71acbfd7d5 and later · before bd66877c0b3b42eed0ecee0bd2a2a505c1e54177affected · git
    • 9d480158ee86ad606d3a8baaf81e6b71acbfd7d5 and later · before 1ff9dd6e7071a561f803135c1d684b13c7a7d01daffected · git
    • 4.19.189 and later · before 4.19.270affected · semver
    • 5.4.115 and later · before 5.4.229affected · 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
Red Hat:rhel_eus:8.6::baseosbpftoolbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernelbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-abi-stablelistsbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-corebefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-debugbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-debug-corebefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-debug-develbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-debug-modulesbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-debug-modules-extrabefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-debuginfo-common-aarch64before 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-debuginfo-common-ppc64lebefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-debuginfo-common-s390xbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-docbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-modulesbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-modules-extrabefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-toolsbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-tools-libsbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-zfcpdumpbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-zfcpdump-corebefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-zfcpdump-debuginfobefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-zfcpdump-develbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-zfcpdump-modulesbefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6
Red Hat:rhel_eus:8.6::baseoskernel-zfcpdump-modules-extrabefore 0:4.18.0-372.70.1.el8_60:4.18.0-372.70.1.el8_6

+11

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

Published before and after this one in the same product

  • ← EarlierCVE-2022-50316Sep 15, 2025 · orangefs: Fix kmemleak in orangefs_sysfs_init()
    22Monitor
  • ← EarlierCVE-2022-50317Sep 15, 2025 · drm/bridge: megachips: Fix a null pointer dereference bug
    22Monitor
  • Later →CVE-2022-50319Sep 15, 2025 · coresight: trbe: remove cpuhp instance node before remove cpuhp state
    22Monitor

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 Linux1ff9dd6e7071a561f803135c1d684b13c7a7d01dVendor (CNA)
Linux Linux3485f197518061371568f842405159aa9e4df551Vendor (CNA)
Linux Linux4.19.270Vendor (CNA)
Linux Linux48f32b9a74e2ac8e854bb87bfefdbc745125a123Vendor (CNA)
Linux Linux5.10.163Vendor (CNA)
Linux Linux5.12Vendor (CNA)
Linux Linux5.4.229Vendor (CNA)
Linux Linux5a96c10a56037db006ba6769307a9731cf6073beVendor (CNA)
Linux Linuxbd66877c0b3b42eed0ecee0bd2a2a505c1e54177Vendor (CNA)
Linux Linuxc0539d5d474ee6fa4ebc41f927a0f98f81244f25Vendor (CNA)
Linux Linuxe293263248f25c6b8aa1caf7c1103d40aa03311eVendor (CNA)
debian:linux6.1.4-1 · Debian:12Package registry (OSV)
red hat:bpftool0:4.18.0-372.70.1.el8_6 · Red Hat:rhel_eus:8.6::baseosPackage registry (OSV)
red hat:bpftool-debuginfo0:4.18.0-372.70.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8Package registry (OSV)
red hat:kernel0:4.18.0-372.70.1.el8_6 · Red Hat:rhel_eus:8.6::baseosPackage registry (OSV)
red hat:kernel-abi-stablelists0:4.18.0-372.70.1.el8_6 · Red Hat:rhel_eus:8.6::baseosPackage registry (OSV)
red hat:kernel-debug-debuginfo0:4.18.0-372.70.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8Package registry (OSV)
red hat:kernel-debuginfo0:4.18.0-372.70.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8Package registry (OSV)
red hat:kernel-debuginfo-common-x86_640:4.18.0-372.70.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8Package registry (OSV)
red hat:kernel-devel0:4.18.0-372.70.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8Package registry (OSV)
red hat:kernel-tools-debuginfo0:4.18.0-372.70.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8Package registry (OSV)
red hat:perf0:4.18.0-372.70.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8Package registry (OSV)
red hat:perf-debuginfo0:4.18.0-372.70.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8Package registry (OSV)
red hat:python3-perf-debuginfo0:4.18.0-372.70.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8Package 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)

—

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.

Change log

  1. Fix✗ → ✓

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

References

Show all references (6 more)

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

All records