CVE-2026-80604 (GCVE-0-2026-80604)

Vulnerability from cvelistv5 – Published: 2026-08-28 06:48 – Updated: 2026-08-29 06:21
VLAI
Title
HID: core: Fix OOB read in hid_get_report for numbered reports
Summary
In the Linux kernel, the following vulnerability has been resolved: HID: core: Fix OOB read in hid_get_report for numbered reports When a caller passes a size of 0 to hid_report_raw_event() for a numbered report, the function originally called hid_get_report() before performing any size validation. Inside hid_get_report(), if the report is numbered (report_enum->numbered is true), it unconditionally dereferences data[0] to extract the report ID. With a size of 0, this results in an out-of-bounds read or kernel panic. Fix this by moving the numbered report size validation check before the call to hid_get_report(), ensuring that size is at least 1 before dereferencing the data pointer.
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 59bfdb41a34cf5d6af1c637348714c2b5a6ca676 , < f8896b684e246f3f00f45ba2b6803ae59b9cc768 (git)
Affected: a4d6cb7cf45bddc76c78ed5fd683328af9e2018f , < 30ff978af92cb51c9ba99f96fc4f4ac80d7001ba (git)
Affected: 121dc93ae1fcaa4b9a601eca6b3ca2e969c2fe2f , < c39f5765ad840b71ff8db812d0210f216cca96e4 (git)
Affected: 9e36568e67f817c728f9d79049d212da79109a75 , < c973d53bcd420b58c4a34c68198746286d77e9fa (git)
Affected: fb3f7ec2606cdc7c6ef30970f381e571866bfd54 , < c1fc0d3aff26ec9ff885b3e4c92eba98cf349678 (git)
Affected: 509c2605065004fc4cd86ee50a9350d402785307 , < dd395744e4ed87956fcbf81ecc6a20c51e35fa4e (git)
Affected: 2c85c61d1332e1e16f020d76951baf167dcb6f7a , < f7e8117e42b20c30d2a5edab82c944a5e381d791 (git)
Affected: 2c85c61d1332e1e16f020d76951baf167dcb6f7a , < af1a9b65ebe8a948eda805c14b78d4d0767cb1b5 (git)
Affected: 710a946b1aa2c35dc56f86621f436938f31ba1a5 (git)
Affected: 5.10.259 , < 5.10.261 (semver)
Affected: 5.15.210 , < 5.15.212 (semver)
Affected: 6.1.176 , < 6.1.178 (semver)
Affected: 6.6.143 , < 6.6.145 (semver)
Affected: 6.12.93 , < 6.12.97 (semver)
Affected: 6.18.33 , < 6.18.40 (semver)
Affected: 7.0.10 , < 7.1 (semver)
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Linux Linux Affected: 7.1
Unaffected: 0 , < 7.1 (semver)
Unaffected: 5.10.261 , ≤ 5.10.* (semver)
Unaffected: 5.15.212 , ≤ 5.15.* (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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              "value": "AV:A - A malicious Bluetooth HID peripheral with numbered reports can reach hid_report_raw_event() during driver probe/feature mapping (e.g., mt_get_feature()) when hid_report_len() is 0, bypassing __hid_input_report(); BT HIDP delivers attacker-controlled descriptors over an adjacent wireless link.\nAC:L - An attacker fully controls the HID report descriptor and GET_REPORT responses; pairing/connecting a device with numbered reports plus a zero-length report ID 0 deterministically calls hid_report_raw_event() with size 0 during probe, with no race or victim-specific heap layout required.\nPR:N - Exploitation requires only a malicious HID peripheral presenting a crafted numbered-report descriptor; the attacker needs no local account, capabilities, or init-namespace privileges on the victim host.\nUI:N - Feature-mapping probe I/O runs automatically during HID enumeration when the device connects or auto-reconnects; no additional victim file-open, mount, or application interaction is needed beyond standard peripheral attachment handled by the kernel.\nS:U - The out-of-bounds read and kernel panic occur entirely within host kernel HID-core processing; impact does not cross a VM, container, or IOMMU boundary to a separate security authority.\nC:H - On numbered-report devices, hid_get_report() dereferences data[0] before any size validation when size is 0, causing an out-of-bounds kernel memory read that may disclose adjacent heap or slab contents.\nI:H - Kernel heap out-of-bounds reads in HID-core can corrupt parser state or be chained with further memory corruption primitives; per kernel guidance, OOB reads in kernel context warrant High integrity impact when exploitation potential exists.\nA:H - The fix commit and CVE description state that dereferencing data[0] with size 0 on numbered reports can cause a kernel panic; this is a kernel oops-class failure denying system availability until reboot."
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    "cveId": "CVE-2026-80604",
    "datePublished": "2026-08-28T06:48:29.755Z",
    "dateReserved": "2026-08-26T14:34:25.772Z",
    "dateUpdated": "2026-08-29T06:21:15.771Z",
    "state": "PUBLISHED"
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      "date": "2026-09-22",
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: Fix OOB read in hid_get_report for numbered reports\n\nWhen a caller passes a size of 0 to hid_report_raw_event() for a\nnumbered report, the function originally called hid_get_report() before\nperforming any size validation.\n\nInside hid_get_report(), if the report is numbered (report_enum-\u003enumbered\nis true), it unconditionally dereferences data[0] to extract the report ID.\nWith a size of 0, this results in an out-of-bounds read or kernel panic.\n\nFix this by moving the numbered report size validation check before the\ncall to hid_get_report(), ensuring that size is at least 1 before\ndereferencing the data pointer."
          }
        ],
        "id": "CVE-2026-80604",
        "lastModified": "2026-08-29T07:16:45.480",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
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                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
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          ]
        },
        "published": "2026-08-28T08:16:44.317",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/30ff978af92cb51c9ba99f96fc4f4ac80d7001ba"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/af1a9b65ebe8a948eda805c14b78d4d0767cb1b5"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/c1fc0d3aff26ec9ff885b3e4c92eba98cf349678"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/c39f5765ad840b71ff8db812d0210f216cca96e4"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/c973d53bcd420b58c4a34c68198746286d77e9fa"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/dd395744e4ed87956fcbf81ecc6a20c51e35fa4e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f7e8117e42b20c30d2a5edab82c944a5e381d791"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f8896b684e246f3f00f45ba2b6803ae59b9cc768"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-31T10:04:27+00:00",
      "cve": "CVE-2026-80604",
      "id": "CVE-2026-80604",
      "initial_release_date": "2026-08-28T00:00:00+00:00",
      "product_status:known_affected": "90",
      "product_status:known_not_affected": "184",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: HID: core: Fix OOB read in hid_get_report for numbered reports",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80604.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-28T16:36:37Z",
      "cve": "CVE-2026-80604",
      "id": "CVE-2026-80604",
      "initial_release_date": "2026-08-28T16:36:37Z",
      "product_status:known_not_affected": "353",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-80604",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-80604.json",
      "version": "2"
    }
  }
}



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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.