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NVD / CVE Program· CNA Linux

CVE-2025-68252: misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup

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: 0.18% (FIRST EPSS).
  • Fixed version: Linux Linux 214e81a63a9aa0be42382ef0365ba5ed32c513ab, 6.1.158, 6.12.56.

Low priority for now. Upgrade to Linux Linux 214e81a63a9aa0be42382ef0365ba5ed32c513ab, 6.1.158, 6.12.56 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: misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup In fastrpc_map_lookup, dma_buf_get is called to obtain a reference to the dma_buf for comparison purposes. However, this reference is never released when the function returns, leading to a dma_buf memory leak. Fix this by adding dma_buf_put before returning from the function, ensuring that the temporarily acquired reference is properly released regardless of whether a matching map is found. Rule: add

—No exploit Fix available
Published
Dec 16, 2025
Updated
Oct 14, 2026
EPSS
0.1% · 8th 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 · 0.1%

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  • 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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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

    • ec5cb80503bbfee67573699fe52fcf456fd57678 and later · before c2fef5ebb73f3dabae6fbc571d181914ed32c483affected · git
    • 6e0d6cc39f410a4d9ea774fbb254c68fe02ff4bb and later · before 9a297a68c3ba4a7ecb31ed52f61bd6634abb79d3affected · git
    • 6e0928a8988e873da9946e17f8065ad77c720186 and later · before e17b13387827adce7acb19ac0f07f9bcafe0ff4caffected · git
    • 1986bba9597b3d97d3e80530dc457a1cd1994e22 and later · before 214e81a63a9aa0be42382ef0365ba5ed32c513abaffected · git
    • 9031626ade38b092b72638dfe0c6ffce8d8acd43 and later · before fff111bf45cbeeb659324316d68554e35d350092affected · git
    • 6.1.156 and later · before 6.1.158affected · semver
    • 6.6.112 and later · before 6.6.115affected · semver
    • 6.12.53 and later · before 6.12.56affected · semver
    • 6.17.3 and later · before 6.17.6affected · semver

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-2025-68250Dec 16, 2025 · hung_task: fix warnings caused by unaligned lock pointers
    32Monitor
  • ← EarlierCVE-2025-68251Dec 16, 2025 · erofs: avoid infinite loops due to corrupted subpage compact indexes
    0Monitor
  • Later →CVE-2025-68253Dec 16, 2025 · mm: don't spin in add_stack_record when gfp flags don't allow
    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 Linux214e81a63a9aa0be42382ef0365ba5ed32c513abVendor (CNA)
Linux Linux6.1.158Vendor (CNA)
Linux Linux6.12.56Vendor (CNA)
Linux Linux6.17.6Vendor (CNA)
Linux Linux6.6.115Vendor (CNA)
Linux Linux9a297a68c3ba4a7ecb31ed52f61bd6634abb79d3Vendor (CNA)
Linux Linuxc2fef5ebb73f3dabae6fbc571d181914ed32c483Vendor (CNA)
Linux Linuxe17b13387827adce7acb19ac0f07f9bcafe0ff4cVendor (CNA)
Linux Linuxfff111bf45cbeeb659324316d68554e35d350092Vendor (CNA)

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 (4 more)

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

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