CVE-2022-48732 (GCVE-0-2022-48732)

Vulnerability from cvelistv5 – Published: 2024-06-20 11:13 – Updated: 2025-05-04 08:21
VLAI?
Title
drm/nouveau: fix off by one in BIOS boundary checking
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix off by one in BIOS boundary checking Bounds checking when parsing init scripts embedded in the BIOS reject access to the last byte. This causes driver initialization to fail on Apple eMac's with GeForce 2 MX GPUs, leaving the system with no working console. This is probably only seen on OpenFirmware machines like PowerPC Macs because the BIOS image provided by OF is only the used parts of the ROM, not a power-of-two blocks read from PCI directly so PCs always have empty bytes at the end that are never accessed.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 , < d4b746e60fd8eaa8016e144223abe91158edcdad (git)
Affected: 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 , < 909d3ec1bf9f0ec534bfc081b77c0836fea7b0e2 (git)
Affected: 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 , < b2a21669ee98aafc41c6d42ef15af4dab9e6e882 (git)
Affected: 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 , < acc887ba88333f5fec49631f12d8cc7ebd95781c (git)
Affected: 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 , < f071d9fa857582d7bd77f4906691f73d3edeab73 (git)
Affected: 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 , < d877e814a62b7de9069aeff8bc1d979dfc996e06 (git)
Affected: 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 , < e7c36fa8a1e63b08312162179c78a0c7795ea369 (git)
Affected: 4d4e9907ff572bb1d1c0f6913ad6e3d6d4525077 , < 1b777d4d9e383d2744fc9b3a09af6ec1893c8b1a (git)
Create a notification for this product.
    Linux Linux Affected: 4.8
Unaffected: 0 , < 4.8 (semver)
Unaffected: 4.9.300 , ≤ 4.9.* (semver)
Unaffected: 4.14.265 , ≤ 4.14.* (semver)
Unaffected: 4.19.228 , ≤ 4.19.* (semver)
Unaffected: 5.4.178 , ≤ 5.4.* (semver)
Unaffected: 5.10.99 , ≤ 5.10.* (semver)
Unaffected: 5.15.22 , ≤ 5.15.* (semver)
Unaffected: 5.16.8 , ≤ 5.16.* (semver)
Unaffected: 5.17 , ≤ * (original_commit_for_fix)
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This causes driver initialization to fail on\\nApple eMac\u0027s with GeForce 2 MX GPUs, leaving the system with no working\\nconsole.\\n\\nThis is probably only seen on OpenFirmware machines like PowerPC Macs\\nbecause the BIOS image provided by OF is only the used parts of the ROM,\\nnot a power-of-two blocks read from PCI directly so PCs always have\\nempty bytes at the end that are never accessed.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.300\", \"versionStartIncluding\": \"4.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.265\", \"versionStartIncluding\": \"4.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.228\", \"versionStartIncluding\": \"4.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.178\", \"versionStartIncluding\": \"4.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.99\", \"versionStartIncluding\": \"4.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.22\", \"versionStartIncluding\": \"4.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16.8\", \"versionStartIncluding\": \"4.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17\", \"versionStartIncluding\": \"4.8\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T08:21:56.924Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48732\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T08:21:56.924Z\", \"dateReserved\": \"2024-06-20T11:09:39.053Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-06-20T11:13:20.065Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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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.