Vulnerability-Lookup

CVE-2026-64273 (GCVE-0-2026-64273)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:49 – Updated: 2026-07-25 08:49

Title

Input: iforce - bound the device-reported force-feedback effect index

Summary

In the Linux kernel, the following vulnerability has been resolved: Input: iforce - bound the device-reported force-feedback effect index iforce_process_packet() handles a status report (packet id 0x02) by taking a force-feedback effect index straight from the device wire and using it to address the per-effect state array: i = data[1] & 0x7f; if (data[1] & 0x80) { if (!test_and_set_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) ... } else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) { ... } The index is masked only with 0x7f, so it ranges 0..127, but core_effects[] holds only IFORCE_EFFECTS_MAX (32) entries. For an index of 32..127 the test_and_set_bit()/test_and_clear_bit() is an out-of-bounds single-bit read-modify-write past the array. core_effects[] is the second-to-last member of struct iforce, so the write lands in the trailing members and beyond the embedding kzalloc()'d iforce_serio / iforce_usb object. data[1] is unvalidated device payload on both transports (the USB interrupt endpoint and serio), and the status path is not gated on force feedback being present, so a malicious or counterfeit device can set or clear a bit at an attacker-chosen offset past the object. Reject an out-of-range index instead of indexing with it. Bound against the array dimension IFORCE_EFFECTS_MAX rather than dev->ff->max_effects so the check guarantees memory safety regardless of how many effects the device registered. A legitimate "effect started/stopped" status always carries an index below IFORCE_EFFECTS_MAX, so well-formed devices are unaffected; the neighbouring mark_core_as_ready() loop is already bounded and is left untouched.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/b1b79e89bc33e4c68…
https://git.kernel.org/stable/c/d10b0507fa0f5b467…
https://git.kernel.org/stable/c/6c0f2901c9d325d4a…
https://git.kernel.org/stable/c/c21295616a8a52b9a…
https://git.kernel.org/stable/c/e5fa31f0550b55d80…
https://git.kernel.org/stable/c/70019779325f2bb5f…
https://git.kernel.org/stable/c/a40250f97c312e000…
https://git.kernel.org/stable/c/0e9943d2e4c63496b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b1b79e89bc33e4c682d3df7ae2aadc62b5a0c310 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d10b0507fa0f5b46764b178e3271f9012f2df677 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6c0f2901c9d325d4a0574c4237fd507810d225ff (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c21295616a8a52b9a5f18cd4ca8c73030eda3d4f (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e5fa31f0550b55d80045669ae9080dd5b88abffa (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 70019779325f2bb5f5a4098e91e79c655f50fcef (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a40250f97c312e000e3616c9074022311a0efbc3 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0e9943d2e4c63496b6ca84bc66fd3c71d40558e2 (git)
Linux	Linux	Affected: 2.6.12 Unaffected: 0 , < 2.6.12 (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: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix)

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              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
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              "status": "unaffected",
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: iforce - bound the device-reported force-feedback effect index\n\niforce_process_packet() handles a status report (packet id 0x02) by\ntaking a force-feedback effect index straight from the device wire and\nusing it to address the per-effect state array:\n\n\ti = data[1] \u0026 0x7f;\n\tif (data[1] \u0026 0x80) {\n\t\tif (!test_and_set_bit(FF_CORE_IS_PLAYED,\n\t\t\t\t      iforce-\u003ecore_effects[i].flags))\n\t\t\t...\n\t} else if (test_and_clear_bit(FF_CORE_IS_PLAYED,\n\t\t\t\t      iforce-\u003ecore_effects[i].flags)) {\n\t\t...\n\t}\n\nThe index is masked only with 0x7f, so it ranges 0..127, but\ncore_effects[] holds only IFORCE_EFFECTS_MAX (32) entries.  For an index\nof 32..127 the test_and_set_bit()/test_and_clear_bit() is an\nout-of-bounds single-bit read-modify-write past the array.  core_effects[]\nis the second-to-last member of struct iforce, so the write lands in the\ntrailing members and beyond the embedding kzalloc()\u0027d iforce_serio /\niforce_usb object.\n\ndata[1] is unvalidated device payload on both transports (the USB\ninterrupt endpoint and serio), and the status path is not gated on force\nfeedback being present, so a malicious or counterfeit device can set or\nclear a bit at an attacker-chosen offset past the object.\n\nReject an out-of-range index instead of indexing with it.  Bound against\nthe array dimension IFORCE_EFFECTS_MAX rather than dev-\u003eff-\u003emax_effects so\nthe check guarantees memory safety regardless of how many effects the\ndevice registered.  A legitimate \"effect started/stopped\" status always\ncarries an index below IFORCE_EFFECTS_MAX, so well-formed devices are\nunaffected; the neighbouring mark_core_as_ready() loop is already bounded\nand is left untouched."
        }
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        "dateUpdated": "2026-07-25T08:49:19.416Z",
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        {
          "url": "https://git.kernel.org/stable/c/0e9943d2e4c63496b6ca84bc66fd3c71d40558e2"
        }
      ],
      "title": "Input: iforce - bound the device-reported force-feedback effect index",
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    "datePublished": "2026-07-25T08:49:19.416Z",
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For an index\\nof 32..127 the test_and_set_bit()/test_and_clear_bit() is an\\nout-of-bounds single-bit read-modify-write past the array.  core_effects[]\\nis the second-to-last member of struct iforce, so the write lands in the\\ntrailing members and beyond the embedding kzalloc()\u0027d iforce_serio /\\niforce_usb object.\\n\\ndata[1] is unvalidated device payload on both transports (the USB\\ninterrupt endpoint and serio), and the status path is not gated on force\\nfeedback being present, so a malicious or counterfeit device can set or\\nclear a bit at an attacker-chosen offset past the object.\\n\\nReject an out-of-range index instead of indexing with it.  Bound against\\nthe array dimension IFORCE_EFFECTS_MAX rather than dev-\u003eff-\u003emax_effects so\\nthe check guarantees memory safety regardless of how many effects the\\ndevice registered.  A legitimate \\\"effect started/stopped\\\" status always\\ncarries an index below IFORCE_EFFECTS_MAX, so well-formed devices are\\nunaffected; the neighbouring mark_core_as_ready() loop is already bounded\\nand is left untouched.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/input/joystick/iforce/iforce-packets.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"b1b79e89bc33e4c682d3df7ae2aadc62b5a0c310\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"d10b0507fa0f5b46764b178e3271f9012f2df677\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"6c0f2901c9d325d4a0574c4237fd507810d225ff\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"c21295616a8a52b9a5f18cd4ca8c73030eda3d4f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"e5fa31f0550b55d80045669ae9080dd5b88abffa\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"70019779325f2bb5f5a4098e91e79c655f50fcef\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"a40250f97c312e000e3616c9074022311a0efbc3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"0e9943d2e4c63496b6ca84bc66fd3c71d40558e2\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/input/joystick/iforce/iforce-packets.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.261\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.212\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.178\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.145\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.96\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.39\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.4\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0e9943d2e4c63496b6ca84bc66fd3c71d40558e2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6c0f2901c9d325d4a0574c4237fd507810d225ff\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/70019779325f2bb5f5a4098e91e79c655f50fcef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a40250f97c312e000e3616c9074022311a0efbc3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b1b79e89bc33e4c682d3df7ae2aadc62b5a0c310\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c21295616a8a52b9a5f18cd4ca8c73030eda3d4f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d10b0507fa0f5b46764b178e3271f9012f2df677\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e5fa31f0550b55d80045669ae9080dd5b88abffa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "suse_vex": {
      "aggregate_severity": "not set",
      "current_release_date": "2026-07-25T16:46:50Z",
      "cve": "CVE-2026-64273",
      "id": "CVE-2026-64273",
      "initial_release_date": "2026-07-25T16:46:50Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64273",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64273.json",
      "version": "2"
    }
  }
}

GHSA-MWJ6-9JPH-6QP6

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-25 12:31

Details

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

Input: iforce - bound the device-reported force-feedback effect index

iforce_process_packet() handles a status report (packet id 0x02) by taking a force-feedback effect index straight from the device wire and using it to address the per-effect state array:

i = data[1] & 0x7f;
if (data[1] & 0x80) {
    if (!test_and_set_bit(FF_CORE_IS_PLAYED,
                  iforce->core_effects[i].flags))
        ...
} else if (test_and_clear_bit(FF_CORE_IS_PLAYED,
                  iforce->core_effects[i].flags)) {
    ...
}

The index is masked only with 0x7f, so it ranges 0..127, but core_effects[] holds only IFORCE_EFFECTS_MAX (32) entries. For an index of 32..127 the test_and_set_bit()/test_and_clear_bit() is an out-of-bounds single-bit read-modify-write past the array. core_effects[] is the second-to-last member of struct iforce, so the write lands in the trailing members and beyond the embedding kzalloc()'d iforce_serio / iforce_usb object.

data[1] is unvalidated device payload on both transports (the USB interrupt endpoint and serio), and the status path is not gated on force feedback being present, so a malicious or counterfeit device can set or clear a bit at an attacker-chosen offset past the object.

Reject an out-of-range index instead of indexing with it. Bound against the array dimension IFORCE_EFFECTS_MAX rather than dev->ff->max_effects so the check guarantees memory safety regardless of how many effects the device registered. A legitimate "effect started/stopped" status always carries an index below IFORCE_EFFECTS_MAX, so well-formed devices are unaffected; the neighbouring mark_core_as_ready() loop is already bounded and is left untouched.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-64273"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:07Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: iforce - bound the device-reported force-feedback effect index\n\niforce_process_packet() handles a status report (packet id 0x02) by\ntaking a force-feedback effect index straight from the device wire and\nusing it to address the per-effect state array:\n\n\ti = data[1] \u0026 0x7f;\n\tif (data[1] \u0026 0x80) {\n\t\tif (!test_and_set_bit(FF_CORE_IS_PLAYED,\n\t\t\t\t      iforce-\u003ecore_effects[i].flags))\n\t\t\t...\n\t} else if (test_and_clear_bit(FF_CORE_IS_PLAYED,\n\t\t\t\t      iforce-\u003ecore_effects[i].flags)) {\n\t\t...\n\t}\n\nThe index is masked only with 0x7f, so it ranges 0..127, but\ncore_effects[] holds only IFORCE_EFFECTS_MAX (32) entries.  For an index\nof 32..127 the test_and_set_bit()/test_and_clear_bit() is an\nout-of-bounds single-bit read-modify-write past the array.  core_effects[]\nis the second-to-last member of struct iforce, so the write lands in the\ntrailing members and beyond the embedding kzalloc()\u0027d iforce_serio /\niforce_usb object.\n\ndata[1] is unvalidated device payload on both transports (the USB\ninterrupt endpoint and serio), and the status path is not gated on force\nfeedback being present, so a malicious or counterfeit device can set or\nclear a bit at an attacker-chosen offset past the object.\n\nReject an out-of-range index instead of indexing with it.  Bound against\nthe array dimension IFORCE_EFFECTS_MAX rather than dev-\u003eff-\u003emax_effects so\nthe check guarantees memory safety regardless of how many effects the\ndevice registered.  A legitimate \"effect started/stopped\" status always\ncarries an index below IFORCE_EFFECTS_MAX, so well-formed devices are\nunaffected; the neighbouring mark_core_as_ready() loop is already bounded\nand is left untouched.",
  "id": "GHSA-mwj6-9jph-6qp6",
  "modified": "2026-07-25T12:31:28Z",
  "published": "2026-07-25T12:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64273"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0e9943d2e4c63496b6ca84bc66fd3c71d40558e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6c0f2901c9d325d4a0574c4237fd507810d225ff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/70019779325f2bb5f5a4098e91e79c655f50fcef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a40250f97c312e000e3616c9074022311a0efbc3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b1b79e89bc33e4c682d3df7ae2aadc62b5a0c310"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c21295616a8a52b9a5f18cd4ca8c73030eda3d4f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d10b0507fa0f5b46764b178e3271f9012f2df677"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e5fa31f0550b55d80045669ae9080dd5b88abffa"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

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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.
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Not confirmed: The user expressed doubt about the validity of the vulnerability.
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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.

Action not permitted

CVE-2026-64273 (GCVE-0-2026-64273)

GHSA-MWJ6-9JPH-6QP6

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