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NVD / CVE Program· CNA Linux

CVE-2026-92488: RDMA/erdma: complete object teardown when the destroy command fails

HighCVSS 7.0 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 28/100)

  • 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: 0.12% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Linux Linux 334145d683ad3e31d052247f10807f2ebc950351, 3886d944b506e0cc681646beb03c3024cb375a68, 4f5cd6a2081ec956db25b8e9f71d052f68d522c7.

Low priority for now. Upgrade to Linux Linux 334145d683ad3e31d052247f10807f2ebc950351, 3886d944b506e0cc681646beb03c3024cb375a68, 4f5cd6a2081ec956db25b8e9f71d052f68d522c7 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: RDMA/erdma: complete object teardown when the destroy command fails erdma_destroy_qp(), erdma_destroy_cq(), erdma_dereg_mr(), and erdma_destroy_ah() returned early when erdma_post_cmd_wait() failed, leaking the queue buffers, MTTs, doorbells and the STAG, QPN, CQN and AHN identifiers. A command timeout clears ERDMA_CMDQ_STATE_OK_BIT and permanently disables the command queue, so no retry can succeed; the RDMA core keeps the object after a failed destructor and forced uverbs cleanup then nulls the pointers, making the resources unreachable. Warn on failure but release every software-owned resource and return success, since during terminal destruction the hardware command result is only diagnostic.

Published
Sep 17, 2026
Updated
Oct 30, 2026
EPSS
0.1% · 2th percentile
CWE
—

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
—
CNA · Linux
7.0
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.

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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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Follow CVE-2026-92488

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.

—

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

    • 6.0affected
    • 155055771704f8cbb5c176a4309b7dc30a50450c and later · before 4f5cd6a2081ec956db25b8e9f71d052f68d522c7affected · git
    • 155055771704f8cbb5c176a4309b7dc30a50450c and later · before 3886d944b506e0cc681646beb03c3024cb375a68affected · git
    • 155055771704f8cbb5c176a4309b7dc30a50450c and later · before 5fcfc988ecf3e2bbe308b95c2c0d2f011d9afabeaffected · git
    • 155055771704f8cbb5c176a4309b7dc30a50450c and later · before ce7d205c264665517c25e8a3231cf2d0c2443e3caffected · git
    • 155055771704f8cbb5c176a4309b7dc30a50450c and later · before 334145d683ad3e31d052247f10807f2ebc950351affected · git
    • 155055771704f8cbb5c176a4309b7dc30a50450c and later · before 652befcba956ef357f480525ccbe25c59bc81d4daffected · git
    • before 6.0not affected · semver
    • 6.1.191 and later · up to and including 6.1.*not affected · semver
    • 6.6.160 and later · up to and including 6.6.*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:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

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-2026-92486Sep 17, 2026 · bpf: Fix CFI mismatch in task work callback
    0Monitor
  • ← EarlierCVE-2026-92487Sep 17, 2026 · exfat: fix valid_size extension over a shared writable mapping
    0Monitor
  • Later →CVE-2026-92489Sep 17, 2026 · xfrm: Fix skb double-free in xfrm_dev_direct_output()
    39Monitor

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 Linux334145d683ad3e31d052247f10807f2ebc950351Vendor (CNA)
Linux Linux3886d944b506e0cc681646beb03c3024cb375a68Vendor (CNA)
Linux Linux4f5cd6a2081ec956db25b8e9f71d052f68d522c7Vendor (CNA)
Linux Linux5fcfc988ecf3e2bbe308b95c2c0d2f011d9afabeVendor (CNA)
Linux Linux652befcba956ef357f480525ccbe25c59bc81d4dVendor (CNA)
Linux Linuxce7d205c264665517c25e8a3231cf2d0c2443e3cVendor (CNA)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · 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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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.
  • Special conditions such as timing or configuration are required.

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
High
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:H/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.

References

Show all references (5 more)

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

All records