CVE-2026-80570 (GCVE-0-2026-80570)

Vulnerability from cvelistv5 – Published: 2026-08-26 14:37 – Updated: 2026-08-26 14:37
VLAI
Title
Input: synaptics-rmi4 - zero report size on F54 work error
Summary
In the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - zero report size on F54 work error In rmi_f54_work(), if an error occurs during report request or command verification, the code jumped directly to the 'error' label, bypassing the 'abort' label where f54->report_size was normally zeroed out. This left f54->report_size containing its previous successful payload size. If a user then altered the V4L2 format to a smaller size, and a subsequent run failed, rmi_f54_buffer_queue() would copy the stale, larger payload size into the shrunken V4L2 buffer, causing a heap buffer overflow. Fix this by merging the 'abort' and 'error' labels into a single 'out' exit path, and ensuring that f54->report_size is always set to 0 on failure by checking for error and zeroing the local report_size first.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d , < 62079c17ec07d64362bec367ee7a525b0dbf6bf9 (git)
Affected: 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d , < 79521ed3cc9ea48476666ccacf45ecd6954b29a4 (git)
Affected: 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d , < c669c64ab71afa7b467c4d7e18f6a05e96b97a1f (git)
Affected: 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d , < 77749685e55da19b187df215b5da4080842ca5c7 (git)
Affected: 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d , < c6cfda79f26c69e97db9805808c3b44d02227b4b (git)
Affected: 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d , < b28593a05afdd812b590e1045b5bd862a5869225 (git)
Affected: 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d , < 88c8174d72900d77fbdf2f527d54b6ff2da876a8 (git)
Affected: 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d , < dc76c3c8e8ad09362b8c1561f3928288c15cba2e (git)
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Linux Linux Affected: 4.9
Unaffected: 0 , < 4.9 (semver)
Unaffected: 5.10.266 , ≤ 5.10.* (semver)
Unaffected: 5.15.217 , ≤ 5.15.* (semver)
Unaffected: 6.1.184 , ≤ 6.1.* (semver)
Unaffected: 6.6.153 , ≤ 6.6.* (semver)
Unaffected: 6.12.105 , ≤ 6.12.* (semver)
Unaffected: 6.18.46 , ≤ 6.18.* (semver)
Unaffected: 7.1.10 , ≤ 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\nInput: synaptics-rmi4 - zero report size on F54 work error\n\nIn rmi_f54_work(), if an error occurs during report request or command\nverification, the code jumped directly to the \u0027error\u0027 label, bypassing\nthe \u0027abort\u0027 label where f54-\u003ereport_size was normally zeroed out.\n\nThis left f54-\u003ereport_size containing its previous successful payload\nsize. If a user then altered the V4L2 format to a smaller size, and a\nsubsequent run failed, rmi_f54_buffer_queue() would copy the stale,\nlarger payload size into the shrunken V4L2 buffer, causing a heap\nbuffer overflow.\n\nFix this by merging the \u0027abort\u0027 and \u0027error\u0027 labels into a single \u0027out\u0027\nexit path, and ensuring that f54-\u003ereport_size is always set to 0 on\nfailure by checking for error and zeroing the local report_size first."
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      "providerMetadata": {
        "dateUpdated": "2026-08-26T14:37:31.940Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/62079c17ec07d64362bec367ee7a525b0dbf6bf9"
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          "url": "https://git.kernel.org/stable/c/79521ed3cc9ea48476666ccacf45ecd6954b29a4"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80570",
    "datePublished": "2026-08-26T14:37:31.940Z",
    "dateReserved": "2026-08-26T14:34:25.768Z",
    "dateUpdated": "2026-08-26T14:37:31.940Z",
    "state": "PUBLISHED"
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If a user then altered the V4L2 format to a smaller size, and a\\nsubsequent run failed, rmi_f54_buffer_queue() would copy the stale,\\nlarger payload size into the shrunken V4L2 buffer, causing a heap\\nbuffer overflow.\\n\\nFix this by merging the \u0027abort\u0027 and \u0027error\u0027 labels into a single \u0027out\u0027\\nexit path, and ensuring that f54-\u003ereport_size is always set to 0 on\\nfailure by checking for error and zeroing the local report_size first.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/input/rmi4/rmi_f54.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3a762dbd5347514c3cb2ac756a92a3d1c7646a2d\",\"lessThan\":\"62079c17ec07d64362bec367ee7a525b0dbf6bf9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3a762dbd5347514c3cb2ac756a92a3d1c7646a2d\",\"lessThan\":\"79521ed3cc9ea48476666ccacf45ecd6954b29a4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3a762dbd5347514c3cb2ac756a92a3d1c7646a2d\",\"lessThan\":\"c669c64ab71afa7b467c4d7e18f6a05e96b97a1f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3a762dbd5347514c3cb2ac756a92a3d1c7646a2d\",\"lessThan\":\"77749685e55da19b187df215b5da4080842ca5c7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3a762dbd5347514c3cb2ac756a92a3d1c7646a2d\",\"lessThan\":\"c6cfda79f26c69e97db9805808c3b44d02227b4b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3a762dbd5347514c3cb2ac756a92a3d1c7646a2d\",\"lessThan\":\"b28593a05afdd812b590e1045b5bd862a5869225\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3a762dbd5347514c3cb2ac756a92a3d1c7646a2d\",\"lessThan\":\"88c8174d72900d77fbdf2f527d54b6ff2da876a8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3a762dbd5347514c3cb2ac756a92a3d1c7646a2d\",\"lessThan\":\"dc76c3c8e8ad09362b8c1561f3928288c15cba2e\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/input/rmi4/rmi_f54.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.9\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.9\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.266\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.217\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.184\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.153\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.105\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.46\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.10\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/62079c17ec07d64362bec367ee7a525b0dbf6bf9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/77749685e55da19b187df215b5da4080842ca5c7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/79521ed3cc9ea48476666ccacf45ecd6954b29a4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/88c8174d72900d77fbdf2f527d54b6ff2da876a8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b28593a05afdd812b590e1045b5bd862a5869225\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c669c64ab71afa7b467c4d7e18f6a05e96b97a1f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c6cfda79f26c69e97db9805808c3b44d02227b4b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dc76c3c8e8ad09362b8c1561f3928288c15cba2e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}



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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.


Detection rules are retrieved from Rulezet.