CVE-2024-26777 (GCVE-0-2024-26777)

Vulnerability from cvelistv5 – Published: 2024-04-03 17:01 – Updated: 2026-01-05 10:34
VLAI?
Title
fbdev: sis: Error out if pixclock equals zero
Summary
In the Linux kernel, the following vulnerability has been resolved: fbdev: sis: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. In sisfb_check_var(), var->pixclock is used as a divisor to caculate drate before it is checked against zero. Fix this by checking it at the beginning. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 84246c35ca34207114055a87552a1c4289c8fd7e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6db07619d173765bd8622d63809cbfe361f04207 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < cd36da760bd1f78c63c7078407baf01dd724f313 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < df6e2088c6f4cad539cf67cba2d6764461e798d1 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f329523f6a65c3bbce913ad35473d83a319d5d99 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 99f1abc34a6dde248d2219d64aa493c76bbdd9eb (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1d11dd3ea5d039c7da089f309f39c4cd363b924b (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e421946be7d9bf545147bea8419ef8239cb7ca52 (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 4.19.308 , ≤ 4.19.* (semver)
Unaffected: 5.4.270 , ≤ 5.4.* (semver)
Unaffected: 5.10.211 , ≤ 5.10.* (semver)
Unaffected: 5.15.150 , ≤ 5.15.* (semver)
Unaffected: 6.1.80 , ≤ 6.1.* (semver)
Unaffected: 6.6.19 , ≤ 6.6.* (semver)
Unaffected: 6.7.7 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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if pixclock equals zero\\n\\nThe userspace program could pass any values to the driver through\\nioctl() interface. If the driver doesn\u0027t check the value of pixclock,\\nit may cause divide-by-zero error.\\n\\nIn sisfb_check_var(), var-\u003epixclock is used as a divisor to caculate\\ndrate before it is checked against zero. Fix this by checking it\\nat the beginning.\\n\\nThis is similar to CVE-2022-3061 in i740fb which was fixed by\\ncommit 15cf0b8.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.308\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.270\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.211\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.150\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.80\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.19\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.7\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"2.6.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:34:31.212Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26777\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:34:31.212Z\", \"dateReserved\": \"2024-02-19T14:20:24.177Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-03T17:01:02.935Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

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.