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NVD / CVE Program· CNA Linux

CVE-2026-31565: RDMA/irdma: Fix deadlock during netdev reset with active connections

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: 0.09% (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 009831768faeca3fb5950ce63f1b49594ec82389, 464bbb844ba5b68e038220c34019069a0a9f1581, 5.15.203; azl3 kernel 6.6.130.1-3 on Azure Linux 3.0 6.6.134.1-2; cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0 Release Notes.

Low priority for now. Upgrade to Linux Linux 009831768faeca3fb5950ce63f1b49594ec82389, 464bbb844ba5b68e038220c34019069a0a9f1581, 5.15.203; azl3 kernel 6.6.130.1-3 on Azure Linux 3.0 6.6.134.1-2; cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0 Release Notes 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/irdma: Fix deadlock during netdev reset with active connections Resolve deadlock that occurs when user executes netdev reset while RDMA applications (e.g., rping) are active. The netdev reset causes ice driver to remove irdma auxiliary driver, triggering device_delete and subsequent client removal. During client removal, uverbs_client waits for QP reference count to reach zero while cma_client holds the final reference, creating circular dependency and indefinite wait in iWARP mode. Skip QP reference count wait during device reset to prevent deadlock.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Apr 24, 2026
Updated
Nov 10, 2026
EPSS
0.0% · 0th 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 · 0.0%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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

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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.

VendorProduct
linuxlinux kernel

Affected versions

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

  • linux linux kernel5.15.116 and later · before 5.15.203
  • linux linux kernel6.1.33 and later · before 6.1.168
  • linux linux kernel6.3.7 and later · before 6.4
  • linux linux kernel6.4.1 and later · before 6.6.131
  • linux linux kernel6.7 and later · before 6.12.80
  • linux linux kernel6.13 and later · before 6.18.21
  • linux linux kernel6.19 and later · before 6.19.11
  • linux linux kernel6.4
  • linux linux kernel7.0

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

    • 6ee53f82540769a6d6e77e40b901f9b9edfa5ff2, 6.4affected
    • 0b3c392b82cdf867808a8ea7c6760d3c7e6b6627 and later · before 009831768faeca3fb5950ce63f1b49594ec82389affected · git
    • 07322c8a12d6c796450faacb8be9e5e3c278ec84 and later · before adf0de36e52a48681eb58cbd7cbf6c8d200caa2baffected · git
    • c8f304d75f6c6cc679a73f89591f9a915da38f09 and later · before acb060bc2609c2eab49263968be59c7d59d497bcaffected · git
    • c8f304d75f6c6cc679a73f89591f9a915da38f09 and later · before a8a1c7621127a15a02494b96ee376406c064237baffected · git
    • c8f304d75f6c6cc679a73f89591f9a915da38f09 and later · before cd8bcec2de5e24e05c34c9391940fda6f50e79b4affected · git
    • c8f304d75f6c6cc679a73f89591f9a915da38f09 and later · before 464bbb844ba5b68e038220c34019069a0a9f1581affected · git
    • c8f304d75f6c6cc679a73f89591f9a915da38f09 and later · before 6f52370970ac07d352a7af4089e55e0e6425f827affected · git
    • 5.15.116 and later · before 5.15.203affected · semver
    • 6.1.33 and later · before 6.1.168affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.170-16.1.170-1
Debian:13linuxbefore 6.12.85-16.12.85-1
Debian:14linuxbefore 6.19.11-16.19.11-1

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-2026-31562Apr 24, 2026 · drm/mediatek: dsi: Store driver data before invoking mipi_dsi_host_register
    22Monitor
  • ← EarlierCVE-2026-31563Apr 24, 2026 · net: macb: Use dev_consume_skb_any() to free TX SKBs
    30Monitor
  • Later →CVE-2026-31566Apr 24, 2026 · drm/amdgpu: Fix fence put before wait in amdgpu_amdkfd_submit_ib
    31Monitor

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 Linux009831768faeca3fb5950ce63f1b49594ec82389Vendor (CNA)
Linux Linux464bbb844ba5b68e038220c34019069a0a9f1581Vendor (CNA)
Linux Linux5.15.203Vendor (CNA)
Linux Linux6.1.168Vendor (CNA)
Linux Linux6.4Vendor (CNA)
Linux Linux6f52370970ac07d352a7af4089e55e0e6425f827Vendor (CNA)
Linux Linuxa8a1c7621127a15a02494b96ee376406c064237bVendor (CNA)
Linux Linuxacb060bc2609c2eab49263968be59c7d59d497bcVendor (CNA)
Linux Linuxadf0de36e52a48681eb58cbd7cbf6c8d200caa2bVendor (CNA)
Linux Linuxcd8bcec2de5e24e05c34c9391940fda6f50e79b4Vendor (CNA)
azl3 kernel 6.6.130.1-3 on Azure Linux 3.06.6.134.1-2 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0Release NotesMicrosoft (MSRC)
debian:linux6.1.170-1 · 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
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-667 · Improper Locking

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.

Change log

  1. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

Show all references (9 more)

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

All records