Vulnerability-Lookup

GHSA-QQ6X-P5C6-GQP6

Vulnerability from github – Published: 2026-06-08 18:31 – Updated: 2026-06-08 18:31

Details

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

staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc

The return value of kzalloc_flex() is used without ensuring that the allocation succeeded, and the pointer is dereferenced unconditionally.

Guard the access to the allocated structure to avoid a potential NULL pointer dereference if the allocation fails.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46305"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-08T17:16:49Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc\n\nThe return value of kzalloc_flex() is used without\nensuring that the allocation succeeded, and the\npointer is dereferenced unconditionally.\n\nGuard the access to the allocated structure to\navoid a potential NULL pointer dereference if the\nallocation fails.",
  "id": "GHSA-qq6x-p5c6-gqp6",
  "modified": "2026-06-08T18:31:52Z",
  "published": "2026-06-08T18:31:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46305"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a5f411becfb7c57aa89827213d31ef23a03d75a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc851db06045a40c18233dd76ef0562d7f8bb6db"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-46305 (GCVE-0-2026-46305)

Vulnerability from cvelistv5 – Published: 2026-06-08 15:46 – Updated: 2026-06-14 18:07

Title

staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc

Summary

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc The return value of kzalloc_flex() is used without ensuring that the allocation succeeded, and the pointer is dereferenced unconditionally. Guard the access to the allocated structure to avoid a potential NULL pointer dereference if the allocation fails.

Severity

No CVSS data available.

Assigner

Linux

References

2 references

URL	Tags
https://git.kernel.org/stable/c/0a5f411becfb7c57a…
https://git.kernel.org/stable/c/bc851db06045a40c1…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 980cd426a25747daf8ed25e2a1904b2d26ffbb3d , < 0a5f411becfb7c57aa89827213d31ef23a03d75a (git) Affected: 980cd426a25747daf8ed25e2a1904b2d26ffbb3d , < bc851db06045a40c18233dd76ef0562d7f8bb6db (git)
Linux	Linux	Affected: 7.0 Unaffected: 0 , < 7.0 (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/rtl8723bs/os_dep/osdep_service.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0a5f411becfb7c57aa89827213d31ef23a03d75a",
              "status": "affected",
              "version": "980cd426a25747daf8ed25e2a1904b2d26ffbb3d",
              "versionType": "git"
            },
            {
              "lessThan": "bc851db06045a40c18233dd76ef0562d7f8bb6db",
              "status": "affected",
              "version": "980cd426a25747daf8ed25e2a1904b2d26ffbb3d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/rtl8723bs/os_dep/osdep_service.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.0"
            },
            {
              "lessThan": "7.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.7",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc\n\nThe return value of kzalloc_flex() is used without\nensuring that the allocation succeeded, and the\npointer is dereferenced unconditionally.\n\nGuard the access to the allocated structure to\navoid a potential NULL pointer dereference if the\nallocation fails."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T18:07:55.303Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0a5f411becfb7c57aa89827213d31ef23a03d75a"
        },
        {
          "url": "https://git.kernel.org/stable/c/bc851db06045a40c18233dd76ef0562d7f8bb6db"
        }
      ],
      "title": "staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46305",
    "datePublished": "2026-06-08T15:46:32.831Z",
    "dateReserved": "2026-05-13T15:03:33.111Z",
    "dateUpdated": "2026-06-14T18:07:55.303Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-QQ6X-P5C6-GQP6

CVE-2026-46305 (GCVE-0-2026-46305)

Tags

Sightings

Nomenclature