Skip to content
Noroxi
NVD / CVE Program· CNA Linux

CVE-2026-93108: RDMA/ipoib: Drain RCU callbacks during module teardown

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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 24ce944721dcd92ae62e7a448d770e2a3e79f5fd, 2b3330cfc097db2d31f47ad09261967630270d66, 31b7c700670830a0e8a4cdcd451c88a13cc5dc48; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1.

Low priority for now. Upgrade to Linux Linux 24ce944721dcd92ae62e7a448d770e2a3e79f5fd, 2b3330cfc097db2d31f47ad09261967630270d66, 31b7c700670830a0e8a4cdcd451c88a13cc5dc48; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1 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: RDMA/ipoib: Drain RCU callbacks during module teardown IPoIB reclamation completions can be signaled from inside an RCU callback. Teardown can wake before the callback returns and unload ib_ipoib while its code is still executing. Client registration failure can also remove already-added devices and queue callbacks. Wait after client and workqueue teardown.

—No exploit Fix available
Published
Sep 17, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 12th 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 · 0.2%

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-2026-93108

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

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for linux records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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.

We use this product, ask for help

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

    • 3.6affected
    • b63b70d8774175b6f8393c495fe455f0fba55ce1 and later · before bb9c23733a0c50e136bd40c27cb60023cc58e22caffected · git
    • b63b70d8774175b6f8393c495fe455f0fba55ce1 and later · before 4a6dc313f9661f80e4ed43461d7ed5615c2450caaffected · git
    • b63b70d8774175b6f8393c495fe455f0fba55ce1 and later · before d8917353966d1d5a486437dd0dd68a2cf8ecb136affected · git
    • b63b70d8774175b6f8393c495fe455f0fba55ce1 and later · before 7bc08d7f9338c9f9c09965e5d020591c793a80cbaffected · git
    • b63b70d8774175b6f8393c495fe455f0fba55ce1 and later · before 2b3330cfc097db2d31f47ad09261967630270d66affected · git
    • b63b70d8774175b6f8393c495fe455f0fba55ce1 and later · before 8dc5ffcb8efcc01e44dd1ebc490eaae72de3fadfaffected · git
    • b63b70d8774175b6f8393c495fe455f0fba55ce1 and later · before 24ce944721dcd92ae62e7a448d770e2a3e79f5fdaffected · git
    • b63b70d8774175b6f8393c495fe455f0fba55ce1 and later · before 31b7c700670830a0e8a4cdcd451c88a13cc5dc48affected · git
    • before 3.6not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
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-2026-93106Sep 17, 2026 · crash_dump: release keyring reference at the correct time
    0Monitor
  • ← EarlierCVE-2026-93107Sep 17, 2026 · RDMA/rxe: Avoid reprocessing the current packet after the QP enters the error state
    32Monitor
  • Later →CVE-2026-93109Sep 17, 2026 · RDMA/mlx5: Drain RCU callbacks during module teardown
    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 Linux24ce944721dcd92ae62e7a448d770e2a3e79f5fdVendor (CNA)
Linux Linux2b3330cfc097db2d31f47ad09261967630270d66Vendor (CNA)
Linux Linux31b7c700670830a0e8a4cdcd451c88a13cc5dc48Vendor (CNA)
Linux Linux4a6dc313f9661f80e4ed43461d7ed5615c2450caVendor (CNA)
Linux Linux7bc08d7f9338c9f9c09965e5d020591c793a80cbVendor (CNA)
Linux Linux8dc5ffcb8efcc01e44dd1ebc490eaae72de3fadfVendor (CNA)
Linux Linuxbb9c23733a0c50e136bd40c27cb60023cc58e22cVendor (CNA)
Linux Linuxd8917353966d1d5a486437dd0dd68a2cf8ecb136Vendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.0—Microsoft (MSRC)
azl3 kernel 6.6.152.1-1 on Azure Linux 3.06.6.157.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
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).

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 (7 more)

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

All records