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NVD / CVE Program· CNA Linux

CVE-2025-37930: drm/nouveau: Fix WARN_ON in nouveau_fence_context_kill()

MediumCVSS 5.5 · v3.1—No exploit Fix available

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: 0.23% (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 0453825167ecc816ec15c736e52316f69db0deb9, 126f5c6e0cb84e5c6f7a3a856d799d85668fb38e, 2ec0f5f6d4768f292c8406ed92fa699f184577e5; azl3 kernel 6.6.85.1-4 on Azure Linux 3.0 6.6.92.2-1; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.92.2-1.

Low priority for now. Upgrade to Linux Linux 0453825167ecc816ec15c736e52316f69db0deb9, 126f5c6e0cb84e5c6f7a3a856d799d85668fb38e, 2ec0f5f6d4768f292c8406ed92fa699f184577e5; azl3 kernel 6.6.85.1-4 on Azure Linux 3.0 6.6.92.2-1; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.92.2-1 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/nouveau: Fix WARN_ON in nouveau_fence_context_kill() Nouveau is mostly designed in a way that it's expected that fences only ever get signaled through nouveau_fence_signal(). However, in at least one other place, nouveau_fence_done(), can signal fences, too. If that happens (race) a signaled fence remains in the pending list for a while, until it gets removed by nouveau_fence_update(). Should nouveau_fence_context_kill() run in the meantime, this would be a bug because the function would attempt to set an error code on an already signaled fence. Have nouveau_fence_context_kill() check for a fence being signaled.

Published
May 20, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 14th percentile

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 · 0.2%

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-2025-37930

When you'll hear from us

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  • 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.

VendorProduct
linuxlinux kernel
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux11.0
  • linux linux kernel5.11 and later · before 5.15.182
  • linux linux kernel5.16 and later · before 6.1.138
  • linux linux kernel6.2 and later · before 6.6.90
  • linux linux kernel5.6 and later · before 5.10.238
  • linux linux kernel6.13 and later · before 6.14.6
  • linux linux kernel6.7 and later · before 6.12.28
  • linux linux kernel6.15

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

    • 5.6affected
    • ea13e5abf807ea912ce84eef6a1946b9a38c6508 and later · before 39d6e889c0b19a2c79e1c74c843ea7c2d0f99c28affected · git
    • ea13e5abf807ea912ce84eef6a1946b9a38c6508 and later · before 2ec0f5f6d4768f292c8406ed92fa699f184577e5affected · git
    • ea13e5abf807ea912ce84eef6a1946b9a38c6508 and later · before 47ca11836c35c5698088fd87f7fb4b0ffa217e17affected · git
    • ea13e5abf807ea912ce84eef6a1946b9a38c6508 and later · before 126f5c6e0cb84e5c6f7a3a856d799d85668fb38eaffected · git
    • ea13e5abf807ea912ce84eef6a1946b9a38c6508 and later · before b771b2017260ffc3a8d4e81266619649bffcb242affected · git
    • ea13e5abf807ea912ce84eef6a1946b9a38c6508 and later · before 0453825167ecc816ec15c736e52316f69db0deb9affected · git
    • ea13e5abf807ea912ce84eef6a1946b9a38c6508 and later · before bbe5679f30d7690a9b6838a583b9690ea73fe0e9affected · git
    • before 5.6not affected · semver
    • 5.10.238 and later · up to and including 5.10.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.140-16.1.140-1
Debian:13linuxbefore 6.12.29-16.12.29-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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

Published before and after this one in the same product

  • ← EarlierCVE-2025-37927May 20, 2025 · iommu/amd: Fix potential buffer overflow in parse_ivrs_acpihid
    31Monitor
  • ← EarlierCVE-2025-37929May 20, 2025 · arm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays
    22Monitor
  • Later →CVE-2025-37931May 20, 2025 · btrfs: adjust subpage bit start based on sectorsize
    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 Linux0453825167ecc816ec15c736e52316f69db0deb9Vendor (CNA)
Linux Linux126f5c6e0cb84e5c6f7a3a856d799d85668fb38eVendor (CNA)
Linux Linux2ec0f5f6d4768f292c8406ed92fa699f184577e5Vendor (CNA)
Linux Linux39d6e889c0b19a2c79e1c74c843ea7c2d0f99c28Vendor (CNA)
Linux Linux47ca11836c35c5698088fd87f7fb4b0ffa217e17Vendor (CNA)
Linux Linuxb771b2017260ffc3a8d4e81266619649bffcb242Vendor (CNA)
Linux Linuxbbe5679f30d7690a9b6838a583b9690ea73fe0e9Vendor (CNA)
azl3 kernel 6.6.85.1-4 on Azure Linux 3.06.6.92.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.92.2-1 on Azure Linux 3.06.6.92.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.140-1 · 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.

  • CVE-2026-31739346 days apartcrypto: tegra - Add missing CRYPTO_ALG_ASYNC
    35Monitor
  • CVE-2026-52952400 days apartiommu: Fix WARN_ON in __iommu_group_set_domain_nofail() due to reset
    35Monitor
  • CVE-2025-39803118 days apartscsi: ufs: core: Remove WARN_ON_ONCE() call from ufshcd_uic_cmd_compl()
    31Monitor
  • CVE-2026-31398318 days apartmm/rmap: fix incorrect pte restoration for lazyfree folios
    31Monitor
  • CVE-2026-46117373 days apartRDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss()
    31Monitor
  • CVE-2023-52621420 days apartbpf: Check rcu_read_lock_trace_held() before calling bpf map helpers
    31Monitor

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)

CWE-617 · Reachable Assertion

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 (8 more)

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

All records