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GHSA-P43J-9GHF-J8HH

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-17 06:33

Details

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

HID: bpf: Fix hid_bpf_get_data() range check

hid_bpf_get_data() returns a pointer into the HID-BPF context data when the caller-provided offset and size fit inside ctx->allocated_size.

The current check adds rdwr_buf_size and offset before comparing the result against ctx->allocated_size. Since both values are unsigned, a very large size can wrap the sum below ctx->allocated_size and make the helper return a pointer even though the requested range is not contained in the backing buffer.

Use check_add_overflow() to reject wrapped range ends before comparing the requested range end against ctx->allocated_size.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72352"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:08Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: bpf: Fix hid_bpf_get_data() range check\n\nhid_bpf_get_data() returns a pointer into the HID-BPF context data when\nthe caller-provided offset and size fit inside ctx-\u003eallocated_size.\n\nThe current check adds rdwr_buf_size and offset before comparing the\nresult against ctx-\u003eallocated_size. Since both values are unsigned, a\nvery large size can wrap the sum below ctx-\u003eallocated_size and make the\nhelper return a pointer even though the requested range is not contained\nin the backing buffer.\n\nUse check_add_overflow() to reject wrapped range ends before comparing\nthe requested range end against ctx-\u003eallocated_size.",
  "id": "GHSA-p43j-9ghf-j8hh",
  "modified": "2026-08-17T06:33:24Z",
  "published": "2026-08-15T06:32:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72352"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d044049421dd48212b28646a850749d4a2d57fa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/61a959b82f1aecd6d2d35c208013dd077cac9d10"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca373549140dfb386aa2de38364b58441b1f4885"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f81bc5a709dcbaf2a3bbef4ca7167f93900cc39f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-72352 (GCVE-0-2026-72352)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:55 – Updated: 2026-08-17 05:43

Title

HID: bpf: Fix hid_bpf_get_data() range check

Summary

In the Linux kernel, the following vulnerability has been resolved: HID: bpf: Fix hid_bpf_get_data() range check hid_bpf_get_data() returns a pointer into the HID-BPF context data when the caller-provided offset and size fit inside ctx->allocated_size. The current check adds rdwr_buf_size and offset before comparing the result against ctx->allocated_size. Since both values are unsigned, a very large size can wrap the sum below ctx->allocated_size and make the helper return a pointer even though the requested range is not contained in the backing buffer. Use check_add_overflow() to reject wrapped range ends before comparing the requested range end against ctx->allocated_size.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/ca373549140dfb386…
https://git.kernel.org/stable/c/61a959b82f1aecd6d…
https://git.kernel.org/stable/c/f81bc5a709dcbaf2a…
https://git.kernel.org/stable/c/2d044049421dd4821…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 658ee5a64fcfbbf758447fa3af425729eaabb0dc , < ca373549140dfb386aa2de38364b58441b1f4885 (git) Affected: 658ee5a64fcfbbf758447fa3af425729eaabb0dc , < 61a959b82f1aecd6d2d35c208013dd077cac9d10 (git) Affected: 658ee5a64fcfbbf758447fa3af425729eaabb0dc , < f81bc5a709dcbaf2a3bbef4ca7167f93900cc39f (git) Affected: 658ee5a64fcfbbf758447fa3af425729eaabb0dc , < 2d044049421dd48212b28646a850749d4a2d57fa (git)
Linux	Linux	Affected: 6.3 Unaffected: 0 , < 6.3 (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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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/bpf/hid_bpf_dispatch.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ca373549140dfb386aa2de38364b58441b1f4885",
              "status": "affected",
              "version": "658ee5a64fcfbbf758447fa3af425729eaabb0dc",
              "versionType": "git"
            },
            {
              "lessThan": "61a959b82f1aecd6d2d35c208013dd077cac9d10",
              "status": "affected",
              "version": "658ee5a64fcfbbf758447fa3af425729eaabb0dc",
              "versionType": "git"
            },
            {
              "lessThan": "f81bc5a709dcbaf2a3bbef4ca7167f93900cc39f",
              "status": "affected",
              "version": "658ee5a64fcfbbf758447fa3af425729eaabb0dc",
              "versionType": "git"
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              "version": "658ee5a64fcfbbf758447fa3af425729eaabb0dc",
              "versionType": "git"
            }
          ]
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        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: bpf: Fix hid_bpf_get_data() range check\n\nhid_bpf_get_data() returns a pointer into the HID-BPF context data when\nthe caller-provided offset and size fit inside ctx-\u003eallocated_size.\n\nThe current check adds rdwr_buf_size and offset before comparing the\nresult against ctx-\u003eallocated_size. Since both values are unsigned, a\nvery large size can wrap the sum below ctx-\u003eallocated_size and make the\nhelper return a pointer even though the requested range is not contained\nin the backing buffer.\n\nUse check_add_overflow() to reject wrapped range ends before comparing\nthe requested range end against ctx-\u003eallocated_size."
        }
      ],
      "metrics": [
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The flaw is only reachable through local bpf() syscalls that load BPF_PROG_TYPE_STRUCT_OPS HID-BPF programs and attach them via BPF_LINK_CREATE; per kernel CNA guidance BPF subsystem bugs are Local even though callbacks may later run on HID input.\nAC:L - Once a HID-BPF program is loaded, the attacker fully controls offset and rdwr_buf_size passed to hid_bpf_get_data(); values such as offset=2 with size=~0 reliably wrap the unsigned sum and bypass the check without races or uncontrollable memory layout.\nPR:L - Loading BPF_MAP_TYPE_STRUCT_OPS maps and BPF_PROG_TYPE_STRUCT_OPS programs requires CAP_BPF (sysctl_unprivileged_bpf_disabled blocks unprivileged BPF); per kernel CNA guidance this is Low because CAP_BPF can be delegated via BPF tokens into user namespaces, not only init-namespace root.\nUI:N - The attacker loads and attaches their own HID-BPF program and triggers hid_bpf_get_data() from its callbacks; no separate victim action such as mounting, opening a file, or plugging in a device is required beyond the attacker\u0027s own bpf operations.\nS:U - Exploitation corrupts kernel heap memory from within the same kernel security authority to achieve local privilege escalation; it does not inherently cross VM, IOMMU, or container sandbox boundaries as a distinct scope change.\nC:H - The overflow lets BPF code obtain a pointer outside the allocated HID-BPF context buffer and read adjacent kernel heap memory, enabling arbitrary kernel information disclosure and supporting further exploitation primitives.\nI:H - The same out-of-bounds pointer allows arbitrary kernel heap writes through the returned buffer, enabling control of adjacent objects and potential arbitrary code execution in kernel context.\nA:H - Large out-of-bounds reads/writes against kmalloc-backed HID-BPF buffers can corrupt critical kernel structures and cause kernel oops, panic, or hang during HID-BPF callback execution."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:43:09.954Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/ca373549140dfb386aa2de38364b58441b1f4885"
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          "url": "https://git.kernel.org/stable/c/61a959b82f1aecd6d2d35c208013dd077cac9d10"
        },
        {
          "url": "https://git.kernel.org/stable/c/f81bc5a709dcbaf2a3bbef4ca7167f93900cc39f"
        },
        {
          "url": "https://git.kernel.org/stable/c/2d044049421dd48212b28646a850749d4a2d57fa"
        }
      ],
      "title": "HID: bpf: Fix hid_bpf_get_data() range check",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72352",
    "datePublished": "2026-08-15T05:55:54.809Z",
    "dateReserved": "2026-08-09T03:40:39.921Z",
    "dateUpdated": "2026-08-17T05:43:09.954Z",
    "state": "PUBLISHED"
  },
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  "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.

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-P43J-9GHF-J8HH

CVE-2026-72352 (GCVE-0-2026-72352)

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Sightings

Nomenclature