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GHSA-W8VC-67QX-3QW3

Vulnerability from github – Published: 2026-10-06 09:31 – Updated: 2026-10-06 09:31

Details

In the Linux kernel, the following vulnerability has been resolved:

RDMA/rtrs: guard against null kobj name

In the client, if init_path() errors, the callee tries to clean up with rtrs_clt_close_conns(). However, this can lead to calling the event tracing code with clt_path->kobj->name being NULL and thus causing a null pointer dereference when trying to copy from it.

This just adds a guard to check that the name is not NULL before copying from it. The server appears to have a similar pattern.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-98355"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-06T09:18:29Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rtrs: guard against null kobj name\n\nIn the client, if `init_path()` errors, the callee tries to clean up\nwith `rtrs_clt_close_conns()`. However, this can lead to calling the\nevent tracing code with `clt_path-\u003ekobj-\u003ename` being `NULL` and thus\ncausing a null pointer dereference when trying to copy from it.\n\nThis just adds a guard to check that the name is not `NULL` before\ncopying from it. The server appears to have a similar pattern.",
  "id": "GHSA-w8vc-67qx-3qw3",
  "modified": "2026-10-06T09:31:36Z",
  "published": "2026-10-06T09:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98355"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/99c24a8968ebef0573825b5cb89d5985d51635b9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f79cf42ff23f9120246cd6740eaa26f59c632a4a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-98355 (GCVE-0-2026-98355)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:46 – Updated: 2026-10-06 08:46

Title

RDMA/rtrs: guard against null kobj name

Summary

In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs: guard against null kobj name In the client, if `init_path()` errors, the callee tries to clean up with `rtrs_clt_close_conns()`. However, this can lead to calling the event tracing code with `clt_path->kobj->name` being `NULL` and thus causing a null pointer dereference when trying to copy from it. This just adds a guard to check that the name is not `NULL` before copying from it. The server appears to have a similar pattern.

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

References

2 references

URL	Tags
https://git.kernel.org/stable/c/f79cf42ff23f91202…
https://git.kernel.org/stable/c/99c24a8968ebef057…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5a93929d9f9a1d82946ddd49e260b6dd1756ad6d , < f79cf42ff23f9120246cd6740eaa26f59c632a4a (git) Affected: 5a93929d9f9a1d82946ddd49e260b6dd1756ad6d , < 99c24a8968ebef0573825b5cb89d5985d51635b9 (git)
Linux	Linux	Affected: 6.1 Unaffected: 0 , < 6.1 (semver) Unaffected: 7.2.8 , ≤ 7.2.* (semver) Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)

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JSON

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        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "drivers/infiniband/ulp/rtrs/rtrs-clt-trace.h",
            "drivers/infiniband/ulp/rtrs/rtrs-srv-trace.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f79cf42ff23f9120246cd6740eaa26f59c632a4a",
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              "version": "5a93929d9f9a1d82946ddd49e260b6dd1756ad6d",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "5a93929d9f9a1d82946ddd49e260b6dd1756ad6d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
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          "programFiles": [
            "drivers/infiniband/ulp/rtrs/rtrs-clt-trace.h",
            "drivers/infiniband/ulp/rtrs/rtrs-srv-trace.h"
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.1"
            },
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              "lessThan": "6.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc4",
              "versionType": "original_commit_for_fix"
            }
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        }
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      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rtrs: guard against null kobj name\n\nIn the client, if `init_path()` errors, the callee tries to clean up\nwith `rtrs_clt_close_conns()`. However, this can lead to calling the\nevent tracing code with `clt_path-\u003ekobj-\u003ename` being `NULL` and thus\ncausing a null pointer dereference when trying to copy from it.\n\nThis just adds a guard to check that the name is not `NULL` before\ncopying from it. The server appears to have a similar pattern."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-10-06T08:46:42.583Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98355",
    "datePublished": "2026-10-06T08:46:42.583Z",
    "dateReserved": "2026-09-25T10:25:14.344Z",
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    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-W8VC-67QX-3QW3

CVE-2026-98355 (GCVE-0-2026-98355)

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