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NVD / CVE Program· CNA Linux

CVE-2023-53844: drm/ttm: Don't leak a resource on swapout move error

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.19% (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 4a5b37ea6797d7a53e6dd004aa37e149f40199ce, a590f03d8de7c4cb7ce4916dc7f2fd10711faabe, af4e0ce2af8a8f0ff3b89702a1e18d8ec2c4a834.

Low priority for now. Upgrade to Linux Linux 4a5b37ea6797d7a53e6dd004aa37e149f40199ce, a590f03d8de7c4cb7ce4916dc7f2fd10711faabe, af4e0ce2af8a8f0ff3b89702a1e18d8ec2c4a834 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: drm/ttm: Don't leak a resource on swapout move error If moving the bo to system for swapout failed, we were leaking a resource. Fix.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Dec 9, 2025
Updated
Aug 5, 2026
EPSS
0.1% · 9th percentile
CWE
—

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
—
CNA · Linux
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-53844

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • 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.

—

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

    • 5.14affected
    • bfa3357ef9abc9d56a2910222d2deeb9f15c91ff and later · before af4e0ce2af8a8f0ff3b89702a1e18d8ec2c4a834affected · git
    • bfa3357ef9abc9d56a2910222d2deeb9f15c91ff and later · before f037f6038736bd038ddb9c72de979a08cc1ee3b5affected · git
    • bfa3357ef9abc9d56a2910222d2deeb9f15c91ff and later · before 4a5b37ea6797d7a53e6dd004aa37e149f40199ceaffected · git
    • bfa3357ef9abc9d56a2910222d2deeb9f15c91ff and later · before a590f03d8de7c4cb7ce4916dc7f2fd10711faabeaffected · git
    • before 5.14not affected · semver
    • 5.15.121 and later · up to and including 5.15.*not affected · semver
    • 6.1.40 and later · up to and including 6.1.*not 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:12linuxbefore 6.1.52-16.1.52-1
Debian:13linuxbefore 6.4.11-16.4.11-1

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-2023-53842Dec 9, 2025 · ASoC: codecs: wcd-mbhc-v2: fix resource leaks on component remove
    0Monitor
  • ← EarlierCVE-2023-53843Dec 9, 2025 · net: openvswitch: reject negative ifindex
    0Monitor
  • Later →CVE-2023-53845Dec 9, 2025 · nilfs2: fix infinite loop in nilfs_mdt_get_block()
    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 Linux4a5b37ea6797d7a53e6dd004aa37e149f40199ceVendor (CNA)
Linux Linuxa590f03d8de7c4cb7ce4916dc7f2fd10711faabeVendor (CNA)
Linux Linuxaf4e0ce2af8a8f0ff3b89702a1e18d8ec2c4a834Vendor (CNA)
Linux Linuxf037f6038736bd038ddb9c72de979a08cc1ee3b5Vendor (CNA)
debian:linux6.1.52-1 · 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

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
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

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 (3 more)

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

All records