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  4. CVE 2026 93104 rdmarvt return null after port allocation failure
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Copyright ยฉ 2026 HOL DAO LLC. All rights reserved.

Back to active CVEs
Unknown severity ยท Source severity not reportedCVE-2026-93104

RDMA/rvt: Return NULL after port allocation failureCVE-2026-93104

Answer in brief

CVE-2026-93104 records a Unknown severity vulnerability in RDMA/rvt: Return NULL after port allocation failure. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 17, 2026Updated Oct 30, 2026Source checked Nov 1, 2026First seen by HOL Sep 17, 2026Material review Oct 30, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 1, 2026
References
6 linked sources
Open source record

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
5 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <b1e1b25723af44328524c7b54433e4bf0ab9930c || >=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1fb1e1b25723af44328524c7b54433e4bf0ab9930c, 2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f
Linux/Linuxgeneric4.6Not reported
Linux/Linuxgeneric>=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <80968b42d13080bf7bc1f3ee17fef126ce2ad98f || >=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <b1e1b25723af44328524c7b54433e4bf0ab9930c || >=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f80968b42d13080bf7bc1f3ee17fef126ce2ad98f, b1e1b25723af44328524c7b54433e4bf0ab9930c, 2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f
Linux/Linuxgeneric>=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <b7129930d1ec46c03a0de07fdce6c29f75795006 || >=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1 || >=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <80968b42d13080bf7bc1f3ee17fef126ce2ad98f || >=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <b1e1b25723af44328524c7b54433e4bf0ab9930c || >=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1fb7129930d1ec46c03a0de07fdce6c29f75795006, 5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1, 80968b42d13080bf7bc1f3ee17fef126ce2ad98f, b1e1b25723af44328524c7b54433e4bf0ab9930c, 2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f
Linux/Linuxgeneric>=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <32d2cdb0f3cac430b04124c3b7248851fe2037f8 || >=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <b7129930d1ec46c03a0de07fdce6c29f75795006 || >=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1 || >=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <80968b42d13080bf7bc1f3ee17fef126ce2ad98f || >=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <b1e1b25723af44328524c7b54433e4bf0ab9930c || >=ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 <2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f32d2cdb0f3cac430b04124c3b7248851fe2037f8, b7129930d1ec46c03a0de07fdce6c29f75795006, 5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1, 80968b42d13080bf7bc1f3ee17fef126ce2ad98f, b1e1b25723af44328524c7b54433e4bf0ab9930c, 2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to b1e1b25723af44328524c7b54433e4bf0ab9930c; Linux/Linux to 80968b42d13080bf7bc1f3ee17fef126ce2ad98f; Linux/Linux to b7129930d1ec46c03a0de07fdce6c29f75795006; Linux/Linux to 32d2cdb0f3cac430b04124c3b7248851fe2037f8 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 17, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 30, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 17, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: RDMA/rvt: Return NULL after port allocation failure rvt_alloc_device() deallocates the IB device when its port array cannot be allocated but then returns the pointer to the released allocation. Callers treat any non-NULL value as valid and dereference it, resulting in a use-after-free. Return NULL immediately after deallocation so callers can propagate the allocation failure.

Quoted source text, attributed separately from HOL analysis.