CVE-2026-64444 (GCVE-0-2026-64444)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:51 – Updated: 2026-08-17 04:55
VLAI
Title
staging: rtl8723bs: fix OOB read in OnAssocRsp() IE loop
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB read in OnAssocRsp() IE loop The IE parsing loop in OnAssocRsp() advances by (pIE->length + 2) each iteration but only guards on i < pkt_len. When a malicious AP sends an AssocResponse whose last IE has only one byte remaining in the frame (the element_id byte lands at pkt_len-1), the loop reads pIE->length from pframe[pkt_len], which is one byte past the allocated receive buffer. Additionally, even when the header bytes are in bounds, pIE->length itself can extend the data window beyond pkt_len, silently passing a truncated IE to the handler functions. Add two guards at the top of the loop body: 1. Break if fewer than sizeof(*pIE) bytes remain (can't read header). 2. Break if the IE's declared data extends past pkt_len.
Severity
8.1 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 889ca6000ac7fa73457b041848fcb08e0d51b809 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 1a52a05471494546f955a58e8c170c0c796c52d5 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 0406d746574e875d8778552eb674fcfbf5330bfb (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 0970dd47726a57e52013594e9fbf667586eb3673 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 04f612dc03427e0b1ac80a2611b5ac0ba93ac446 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 7e7741c8315e4160aead00a60cdd6f81ab880717 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < f9654207e92283e0acac5d64fe5f8835383b5a23 (git)
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Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 5.15.212 , ≤ 5.15.* (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.96 , ≤ 6.12.* (semver)
Unaffected: 6.18.39 , ≤ 6.18.* (semver)
Unaffected: 7.1.4 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix OOB read in OnAssocRsp() IE loop\n\nThe IE parsing loop in OnAssocRsp() advances by (pIE-\u003elength + 2) each\niteration but only guards on i \u003c pkt_len. When a malicious AP sends an\nAssocResponse whose last IE has only one byte remaining in the frame\n(the element_id byte lands at pkt_len-1), the loop reads pIE-\u003elength\nfrom pframe[pkt_len], which is one byte past the allocated receive buffer.\n\nAdditionally, even when the header bytes are in bounds, pIE-\u003elength\nitself can extend the data window beyond pkt_len, silently passing a\ntruncated IE to the handler functions.\n\nAdd two guards at the top of the loop body:\n  1. Break if fewer than sizeof(*pIE) bytes remain (can\u0027t read header).\n  2. Break if the IE\u0027s declared data extends past pkt_len."
          }
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        "lastModified": "2026-09-03T15:41:03.900",
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                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
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        "published": "2026-07-25T10:17:29.053",
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          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1a52a05471494546f955a58e8c170c0c796c52d5"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7e7741c8315e4160aead00a60cdd6f81ab880717"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/889ca6000ac7fa73457b041848fcb08e0d51b809"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f9654207e92283e0acac5d64fe5f8835383b5a23"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-07-30T04:23:02+00:00",
      "cve": "CVE-2026-64444",
      "id": "CVE-2026-64444",
      "initial_release_date": "2026-07-25T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: staging: rtl8723bs: fix OOB read in OnAssocRsp() IE loop",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64444.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-10-03T00:44:13Z",
      "cve": "CVE-2026-64444",
      "id": "CVE-2026-64444",
      "initial_release_date": "2026-07-25T15:59:13Z",
      "product_status:known_affected": "673",
      "product_status:known_not_affected": "79",
      "product_status:recommended": "256",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64444",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64444.json",
      "version": "13"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.