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CVE.org (no NVD analysis yet)· CNA Linux

CVE-2026-98352: RDMA/rtrs-clt: Fix CQ pool leak when connect is interrupted

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: 0.16% (FIRST EPSS).
  • Fixed version: Linux Linux 2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcda, 31024e158b45358370a0a14ed96589e6aa62d6cb, 6f8020fe7465f49e234a576c04e415e9d08c7878; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1.

Low priority for now. Upgrade to Linux Linux 2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcda, 31024e158b45358370a0a14ed96589e6aa62d6cb, 6f8020fe7465f49e234a576c04e415e9d08c7878; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1 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/rtrs-clt: Fix CQ pool leak when connect is interrupted The client borrows shared CQ credits in the ADDR_RESOLVED handler via ib_cq_pool_get(), before the peer is connected. create_cm() can return -ERESTARTSYS from wait_event_interruptible_timeout() without destroying the CM ID. The init_conns() and stop-and-destroy paths then call destroy_con_cq_qp() while cq is still NULL (no PUT) and only afterwards rdma_destroy_id(). CMA serializes the handler against rdma_destroy_id() with handler_mutex, but that does not order the GET against destroy_con_cq_qp(). If ADDR_RESOLVED has already passed the DESTROYING check, it can take con_mutex, GET credits, and then lose the con to kfree. Device unregister later hits WARN_ON(cq->cqe_used) in ib_cq_pool_cleanup(). Set a per-connection flag under con_mutex before CQ/QP teardown so a racing ADDR_RESOLVED cannot borrow credits after teardown has begun.

—No exploit Fix available
Published
Oct 6, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 5th 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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  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

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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

    • 5.13affected
    • 3b89e92c2a95a39c38a3808f4528e502a39bd94d and later · before a82cca40139d9fcae8208901856bd5bb4051f097affected · git
    • 3b89e92c2a95a39c38a3808f4528e502a39bd94d and later · before 74c4ed55e61f1b65ddbebc5b635d136461a1c3daaffected · git
    • 3b89e92c2a95a39c38a3808f4528e502a39bd94d and later · before 6f8020fe7465f49e234a576c04e415e9d08c7878affected · git
    • 3b89e92c2a95a39c38a3808f4528e502a39bd94d and later · before 31024e158b45358370a0a14ed96589e6aa62d6cbaffected · git
    • 3b89e92c2a95a39c38a3808f4528e502a39bd94d and later · before 8f253d5893f991742464b9e7203c43fc08d0aa11affected · git
    • 3b89e92c2a95a39c38a3808f4528e502a39bd94d and later · before bf88ac4867050112a6c819c8d1a7209bf48ef427affected · git
    • 3b89e92c2a95a39c38a3808f4528e502a39bd94d and later · before 2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcdaaffected · git
    • before 5.13not affected · semver
    • 5.15.222 and later · up to and including 5.15.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.8-17.2.8-1

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

Published before and after this one in the same product

  • ← EarlierCVE-2026-98350Oct 6, 2026 · wifi: brcmfmac: cyw: pass PMKID to firmware if present
    0Monitor
  • ← EarlierCVE-2026-98351Oct 6, 2026 · wifi: virt_wifi: free skb when disconnected
    0Monitor
  • Later →CVE-2026-98353Oct 6, 2026 · RDMA/erdma: Use IRQ-safe XArray helpers for QP and CQ tables
    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 Linux2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcdaVendor (CNA)
Linux Linux31024e158b45358370a0a14ed96589e6aa62d6cbVendor (CNA)
Linux Linux6f8020fe7465f49e234a576c04e415e9d08c7878Vendor (CNA)
Linux Linux74c4ed55e61f1b65ddbebc5b635d136461a1c3daVendor (CNA)
Linux Linux8f253d5893f991742464b9e7203c43fc08d0aa11Vendor (CNA)
Linux Linuxa82cca40139d9fcae8208901856bd5bb4051f097Vendor (CNA)
Linux Linuxbf88ac4867050112a6c819c8d1a7209bf48ef427Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.158.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux7.2.8-1 · Debian:14Package registry (OSV)
debian:linux-6.126.12.113-1~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.

  1. Published
  2. Fix recordedsame day
  3. TodayOct 28, 2026+22 d
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. Exploit maturity— → none
  2. Fix✗ → ✓

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

References

Show all references (6 more)

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

All records