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CVE-2023-53553· NVD / CVE Program· CNA Linux

HID: hyperv: avoid struct memcpy overrun warning

In the Linux kernel, the following vulnerability has been resolved: HID: hyperv: avoid struct memcpy overrun warning A previous patch addressed the fortified memcpy warning for most builds, but I still see this one with gcc-9: In file included from include/linux/string.h:254, from drivers/hid/hid-hyperv.c:8: In function 'fortify_memcpy_chk', inlined from 'mousevsc_on_receive' at drivers/hid/hid-hyperv.c:272:3: include/linux/fortify-string.h:583:4: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning] 583 | __write_overflow_field(p_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ My guess is that the WARN_ON() itself is what confuses gcc, so it no longer sees that there is a correct range check. Rework the code in a way that helps readability and avoids the warning.

MediumCVSS 5.5 · v3.1—No exploit Fix available

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Published
Oct 4, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 3th percentile
CWE
—
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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 · 0.1%

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 kernel6.2 and later · before 6.4.5
  • linux linux kernel6.5

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

    • 6.2affected
    • 542f25a94471570e2594be5b422b9ca572cf88a1 and later · before a7902cc5f5b9c95997017c8e309da760fb1deb6eaffected · git
    • 542f25a94471570e2594be5b422b9ca572cf88a1 and later · before 5f151364b1da6bd217632fd4ee8cc24eaf66a497affected · git
    • before 6.2not affected · semver
    • 6.4.5 and later · up to and including 6.4.*not affected · semver
    • 6.5 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:13linuxbefore 6.4.11-16.4.11-1
openSUSE:Leap 15.6dtb-aarch64before 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-debugbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-kvmsmallbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
openSUSE:Leap 15.6kernel-obs-qabefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6_Update_17before 1-150600.13.5.11-150600.13.5.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6_Update_17before 1-150600.13.5.11-150600.13.5.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6-RT_Update_17before 1-150600.1.3.11-150600.1.3.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6-RT_Update_17before 1-150600.1.3.11-150600.1.3.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-64kbbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-64kbbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-defaultbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-defaultbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-default-basebefore 6.4.0-150600.23.78.1.150600.12.34.26.4.0-150600.23.78.1.150600.12.34.2
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-default-basebefore 6.4.0-150600.23.78.1.150600.12.34.26.4.0-150600.23.78.1.150600.12.34.2
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-sourcebefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-sourcebefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-zfcpdumpbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-zfcpdumpbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Development Tools 15 SP6kernel-docsbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Development Tools 15 SP6kernel-docsbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Development Tools 15 SP6kernel-obs-buildbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Development Tools 15 SP6kernel-obs-buildbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1
SUSE:Linux Enterprise Module for Development Tools 15 SP6kernel-symsbefore 6.4.0-150600.23.78.16.4.0-150600.23.78.1

+21

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    83Now
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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 Linux5f151364b1da6bd217632fd4ee8cc24eaf66a497Vendor (CNA)
Linux Linuxa7902cc5f5b9c95997017c8e309da760fb1deb6eVendor (CNA)
debian:linux6.4.11-1 · Debian:13Package registry (OSV)
opensuse:kernel-azure6.4.0-150600.8.55.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source-azure6.4.0-150600.8.55.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms-azure6.4.0-150600.8.55.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:kernel-64kb6.4.0-150600.23.78.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-azure6.4.0-150600.8.55.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)
suse:kernel-default6.4.0-150600.23.78.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-default6.4.0-36.1 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-default-base6.4.0-150600.23.78.1.150600.12.34.2 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-default-base6.4.0-36.1.21.13 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-docs6.4.0-150600.23.78.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP6Package registry (OSV)
suse:kernel-kvmsmall6.4.0-36.1 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-rt6.4.0-38.1 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-source6.4.0-150600.23.78.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-source6.4.0-36.1 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-source-azure6.4.0-150600.8.55.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)
suse:kernel-source-rt6.4.0-38.1 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-syms-azure6.4.0-150600.8.55.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)
suse:kernel-zfcpdump6.4.0-150600.23.78.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package 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.

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

All records