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NVD / CVE Program· CNA Linux

CVE-2025-40311: accel/habanalabs: support mapping cb with vmalloc-backed coherent memory

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 513024d5a0e34fd34247043f1876b6138ca52847, 73c7c2cdb442fc4160d2a2a4bfffbd162af06cb9, 7ec8ac9f73d4a9438c2186768d6de27ace37531e.

Low priority for now. Upgrade to Linux Linux 513024d5a0e34fd34247043f1876b6138ca52847, 73c7c2cdb442fc4160d2a2a4bfffbd162af06cb9, 7ec8ac9f73d4a9438c2186768d6de27ace37531e 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: accel/habanalabs: support mapping cb with vmalloc-backed coherent memory When IOMMU is enabled, dma_alloc_coherent() with GFP_USER may return addresses from the vmalloc range. If such an address is mapped without VM_MIXEDMAP, vm_insert_page() will trigger a BUG_ON due to the VM_PFNMAP restriction. Fix this by checking for vmalloc addresses and setting VM_MIXEDMAP in the VMA before mapping. This ensures safe mapping and avoids kernel crashes. The memory is still driver-allocated and cannot be accessed directly by userspace.

—No exploit Fix available
Published
Dec 8, 2025
Updated
Oct 30, 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 you'll hear from us

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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.

—

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

    • 5.8affected
    • ac0ae6a96aa58eeba4aed97b12ef1dea8c5bf399 and later · before 8de421db5b1b2b37e9643ea7f6ade90fd756892daffected · git
    • ac0ae6a96aa58eeba4aed97b12ef1dea8c5bf399 and later · before 7ec8ac9f73d4a9438c2186768d6de27ace37531eaffected · git
    • ac0ae6a96aa58eeba4aed97b12ef1dea8c5bf399 and later · before d1dfe21a332d38a6a09658ec29a55940afb5fe36affected · git
    • ac0ae6a96aa58eeba4aed97b12ef1dea8c5bf399 and later · before 73c7c2cdb442fc4160d2a2a4bfffbd162af06cb9affected · git
    • ac0ae6a96aa58eeba4aed97b12ef1dea8c5bf399 and later · before 513024d5a0e34fd34247043f1876b6138ca52847affected · git
    • before 5.8not affected · semver
    • 6.1.191 and later · up to and including 6.1.*not affected · semver
    • 6.6.117 and later · up to and including 6.6.*not affected · semver
    • 6.12.58 and later · up to and including 6.12.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
Debian:13linuxbefore 6.12.63-16.12.63-1
Debian:14linuxbefore 6.17.8-16.17.8-1

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
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  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2025-40309Dec 8, 2025 · Bluetooth: SCO: Fix UAF on sco_conn_free
    32Monitor
  • ← EarlierCVE-2025-40310Dec 8, 2025 · amd/amdkfd: resolve a race in amdgpu_amdkfd_device_fini_sw
    0Monitor
  • Later →CVE-2025-40312Dec 8, 2025 · jfs: Verify inode mode when loading from disk
    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 Linux513024d5a0e34fd34247043f1876b6138ca52847Vendor (CNA)
Linux Linux73c7c2cdb442fc4160d2a2a4bfffbd162af06cb9Vendor (CNA)
Linux Linux7ec8ac9f73d4a9438c2186768d6de27ace37531eVendor (CNA)
Linux Linux8de421db5b1b2b37e9643ea7f6ade90fd756892dVendor (CNA)
Linux Linuxd1dfe21a332d38a6a09658ec29a55940afb5fe36Vendor (CNA)
debian:linux6.12.63-1 · Debian:13Package 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

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✗ → ✓

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

References

Show all references (4 more)

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

All records