Vulnerability-Lookup

FKIE_CVE-2022-49162

Vulnerability from fkie_nvd - Published: 2025-02-26 07:00 - Updated: 2026-08-04 10:17

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: sm712fb: Fix crash in smtcfb_write() When the sm712fb driver writes three bytes to the framebuffer, the driver will crash: BUG: unable to handle page fault for address: ffffc90001ffffff RIP: 0010:smtcfb_write+0x454/0x5b0 Call Trace: vfs_write+0x291/0xd60 ? do_sys_openat2+0x27d/0x350 ? __fget_light+0x54/0x340 ksys_write+0xce/0x190 do_syscall_64+0x43/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae Fix it by removing the open-coded endianness fixup-code.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0ec746674296c94137f074309c26d17e644c0498	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1aea36a62f0a0ad67eccc945bac0bd6422ef720f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3b36c05f68ba32d0dfb63abc9016d6fe9117829f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4f01d09b2bbfbcb47b3eb305560a7f4857a32260	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/809b8cde86320698661eec677222bc5c5df76176	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/aeb635b49530b7d19e140949753409f759ba99be	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b1c28577529cdfad40c8242673285f1e1e4c314e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/eae90015d10f0c9a47fc4adccba4cd79dce664e4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fb791514acf9070225eed46e1ccbb0aa7aae5da5	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/video/fbdev/sm712fb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "d7edf47947f9d921be6ca5fc8e83049124466f98",
              "versionType": "git"
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            },
            {
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              "versionType": "git"
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            {
              "lessThan": "eae90015d10f0c9a47fc4adccba4cd79dce664e4",
              "status": "affected",
              "version": "d7edf47947f9d921be6ca5fc8e83049124466f98",
              "versionType": "git"
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              "version": "d7edf47947f9d921be6ca5fc8e83049124466f98",
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              "status": "affected",
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          ]
        },
        {
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          "product": "Linux",
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.33"
            },
            {
              "lessThan": "2.6.33",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.311",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.276",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.238",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
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              "matchCriteriaId": "C86EFD13-93D4-4385-83E8-C665BE8F570F",
              "versionEndExcluding": "4.9.311",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6D9B028C-6313-47F9-94B7-5F8122345E49",
              "versionEndExcluding": "4.14.276",
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            {
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            {
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              "matchCriteriaId": "8CB6E8F5-C2B1-46F3-A807-0F6104AC340F",
              "versionEndExcluding": "5.4.189",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "5.10.110",
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            },
            {
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              "matchCriteriaId": "27C42AE8-B387-43E2-938A-E1C8B40BE6D5",
              "versionEndExcluding": "5.15.33",
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              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "20C43679-0439-405A-B97F-685BEE50613B",
              "versionEndExcluding": "5.16.19",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "210C679C-CF84-44A3-8939-E629C87E54BF",
              "versionEndExcluding": "5.17.2",
              "versionStartIncluding": "5.17",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvideo: fbdev: sm712fb: Fix crash in smtcfb_write()\n\nWhen the sm712fb driver writes three bytes to the framebuffer, the\ndriver will crash:\n\n    BUG: unable to handle page fault for address: ffffc90001ffffff\n    RIP: 0010:smtcfb_write+0x454/0x5b0\n    Call Trace:\n     vfs_write+0x291/0xd60\n     ? do_sys_openat2+0x27d/0x350\n     ? __fget_light+0x54/0x340\n     ksys_write+0xce/0x190\n     do_syscall_64+0x43/0x90\n     entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nFix it by removing the open-coded endianness fixup-code."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: video: fbdev: sm712fb: Se corrige el fallo en smtcfb_write() Cuando el controlador sm712fb escribe tres bytes en el framebuffer, el controlador se bloquear\u00e1: ERROR: no se puede manejar el error de p\u00e1gina para la direcci\u00f3n: ffffc90001ffffff RIP: 0010:smtcfb_write+0x454/0x5b0 Rastreo de llamadas: vfs_write+0x291/0xd60 ? do_sys_openat2+0x27d/0x350 ? __fget_light+0x54/0x340 ksys_write+0xce/0x190 do_syscall_64+0x43/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae Solucione el problema eliminando el c\u00f3digo de correcci\u00f3n de endianness de c\u00f3digo abierto."
    }
  ],
  "id": "CVE-2022-49162",
  "lastModified": "2026-08-04T10:17:37.010",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-02-26T07:00:53.373",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/0ec746674296c94137f074309c26d17e644c0498"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/1aea36a62f0a0ad67eccc945bac0bd6422ef720f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3b36c05f68ba32d0dfb63abc9016d6fe9117829f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/4f01d09b2bbfbcb47b3eb305560a7f4857a32260"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/809b8cde86320698661eec677222bc5c5df76176"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/aeb635b49530b7d19e140949753409f759ba99be"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b1c28577529cdfad40c8242673285f1e1e4c314e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/fb791514acf9070225eed46e1ccbb0aa7aae5da5"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2022-49162 (GCVE-0-2022-49162)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2026-08-05 08:54

Title

video: fbdev: sm712fb: Fix crash in smtcfb_write()

Summary

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

9 references

URL	Tags
https://git.kernel.org/stable/c/fb791514acf907022…
https://git.kernel.org/stable/c/0ec746674296c9413…
https://git.kernel.org/stable/c/1aea36a62f0a0ad67…
https://git.kernel.org/stable/c/3b36c05f68ba32d0d…
https://git.kernel.org/stable/c/b1c28577529cdfad4…
https://git.kernel.org/stable/c/eae90015d10f0c9a4…
https://git.kernel.org/stable/c/aeb635b49530b7d19…
https://git.kernel.org/stable/c/809b8cde863206986…
https://git.kernel.org/stable/c/4f01d09b2bbfbcb47…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d7edf47947f9d921be6ca5fc8e83049124466f98 , < fb791514acf9070225eed46e1ccbb0aa7aae5da5 (git) Affected: d7edf47947f9d921be6ca5fc8e83049124466f98 , < 0ec746674296c94137f074309c26d17e644c0498 (git) Affected: d7edf47947f9d921be6ca5fc8e83049124466f98 , < 1aea36a62f0a0ad67eccc945bac0bd6422ef720f (git) Affected: d7edf47947f9d921be6ca5fc8e83049124466f98 , < 3b36c05f68ba32d0dfb63abc9016d6fe9117829f (git) Affected: d7edf47947f9d921be6ca5fc8e83049124466f98 , < b1c28577529cdfad40c8242673285f1e1e4c314e (git) Affected: d7edf47947f9d921be6ca5fc8e83049124466f98 , < eae90015d10f0c9a47fc4adccba4cd79dce664e4 (git) Affected: d7edf47947f9d921be6ca5fc8e83049124466f98 , < aeb635b49530b7d19e140949753409f759ba99be (git) Affected: d7edf47947f9d921be6ca5fc8e83049124466f98 , < 809b8cde86320698661eec677222bc5c5df76176 (git) Affected: d7edf47947f9d921be6ca5fc8e83049124466f98 , < 4f01d09b2bbfbcb47b3eb305560a7f4857a32260 (git)
Linux	Linux	Affected: 2.6.33 Unaffected: 0 , < 2.6.33 (semver) Unaffected: 4.9.311 , ≤ 4.9.* (semver) Unaffected: 4.14.276 , ≤ 4.14.* (semver) Unaffected: 4.19.238 , ≤ 4.19.* (semver) Unaffected: 5.4.189 , ≤ 5.4.* (semver) Unaffected: 5.10.110 , ≤ 5.10.* (semver) Unaffected: 5.15.33 , ≤ 5.15.* (semver) Unaffected: 5.16.19 , ≤ 5.16.* (semver) Unaffected: 5.17.2 , ≤ 5.17.* (semver) Unaffected: 5.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/video/fbdev/sm712fb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fb791514acf9070225eed46e1ccbb0aa7aae5da5",
              "status": "affected",
              "version": "d7edf47947f9d921be6ca5fc8e83049124466f98",
              "versionType": "git"
            },
            {
              "lessThan": "0ec746674296c94137f074309c26d17e644c0498",
              "status": "affected",
              "version": "d7edf47947f9d921be6ca5fc8e83049124466f98",
              "versionType": "git"
            },
            {
              "lessThan": "1aea36a62f0a0ad67eccc945bac0bd6422ef720f",
              "status": "affected",
              "version": "d7edf47947f9d921be6ca5fc8e83049124466f98",
              "versionType": "git"
            },
            {
              "lessThan": "3b36c05f68ba32d0dfb63abc9016d6fe9117829f",
              "status": "affected",
              "version": "d7edf47947f9d921be6ca5fc8e83049124466f98",
              "versionType": "git"
            },
            {
              "lessThan": "b1c28577529cdfad40c8242673285f1e1e4c314e",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "eae90015d10f0c9a47fc4adccba4cd79dce664e4",
              "status": "affected",
              "version": "d7edf47947f9d921be6ca5fc8e83049124466f98",
              "versionType": "git"
            },
            {
              "lessThan": "aeb635b49530b7d19e140949753409f759ba99be",
              "status": "affected",
              "version": "d7edf47947f9d921be6ca5fc8e83049124466f98",
              "versionType": "git"
            },
            {
              "lessThan": "809b8cde86320698661eec677222bc5c5df76176",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "4f01d09b2bbfbcb47b3eb305560a7f4857a32260",
              "status": "affected",
              "version": "d7edf47947f9d921be6ca5fc8e83049124466f98",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/video/fbdev/sm712fb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.33"
            },
            {
              "lessThan": "2.6.33",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.311",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.276",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.238",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.311",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.276",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.238",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.189",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.110",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.33",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16.19",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.2",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "2.6.33",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvideo: fbdev: sm712fb: Fix crash in smtcfb_write()\n\nWhen the sm712fb driver writes three bytes to the framebuffer, the\ndriver will crash:\n\n    BUG: unable to handle page fault for address: ffffc90001ffffff\n    RIP: 0010:smtcfb_write+0x454/0x5b0\n    Call Trace:\n     vfs_write+0x291/0xd60\n     ? do_sys_openat2+0x27d/0x350\n     ? __fget_light+0x54/0x340\n     ksys_write+0xce/0x190\n     do_syscall_64+0x43/0x90\n     entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nFix it by removing the open-coded endianness fixup-code."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "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 bug is reached only via write(2) on the local fbdev node (/dev/fbN) through vfs_write \u2192 fb_write \u2192 smtcfb_write; it is a PCI framebuffer driver with no network-facing path.\nAC:L - An attacker can reliably trigger the OOB write by writing a 1- or 3-byte payload at offset 0; no races or attacker-uncontrollable conditions are required.\nPR:L - fb_open/fb_write impose no capability checks\u2014access is only DAC on /dev/fb*, typically granted to unprivileged video-group or console users on the embedded/kiosk systems that ship SM712/SM720 hardware.\nUI:N - The attacker opens the framebuffer device and writes the crafted payload themselves; no separate victim action is required.\nS:U - Impact stays within the host kernel/device authority (crash or MMIO corruption); there is no VM, IOMMU, or other security-boundary crossing.\nC:H - This is attacker-controlled out-of-bounds memory corruption; on SM720 screen_base sits 2MB into a shared ioremap with device registers, so the OOB poke hits mapped MMIO and is treatable as corruption that can be leveraged for disclosure.\nI:H - The broken endian remainder path does `--dst8` and fb_writeb() of attacker-controlled bytes before the intended destination\u2014an explicit out-of-bounds write into either unmapped space or (on SM720) the mapped register aperture.\nA:H - The reported reproducer causes a kernel oops (page fault in smtcfb_write), which is a high availability impact; MMIO corruption can also hang or disable the display path."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:54:09.104Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fb791514acf9070225eed46e1ccbb0aa7aae5da5"
        },
        {
          "url": "https://git.kernel.org/stable/c/0ec746674296c94137f074309c26d17e644c0498"
        },
        {
          "url": "https://git.kernel.org/stable/c/1aea36a62f0a0ad67eccc945bac0bd6422ef720f"
        },
        {
          "url": "https://git.kernel.org/stable/c/3b36c05f68ba32d0dfb63abc9016d6fe9117829f"
        },
        {
          "url": "https://git.kernel.org/stable/c/b1c28577529cdfad40c8242673285f1e1e4c314e"
        },
        {
          "url": "https://git.kernel.org/stable/c/eae90015d10f0c9a47fc4adccba4cd79dce664e4"
        },
        {
          "url": "https://git.kernel.org/stable/c/aeb635b49530b7d19e140949753409f759ba99be"
        },
        {
          "url": "https://git.kernel.org/stable/c/809b8cde86320698661eec677222bc5c5df76176"
        },
        {
          "url": "https://git.kernel.org/stable/c/4f01d09b2bbfbcb47b3eb305560a7f4857a32260"
        }
      ],
      "title": "video: fbdev: sm712fb: Fix crash in smtcfb_write()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49162",
    "datePublished": "2025-02-26T01:55:23.548Z",
    "dateReserved": "2025-02-26T01:49:39.277Z",
    "dateUpdated": "2026-08-05T08:54:09.104Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.
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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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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FKIE_CVE-2022-49162

CVE-2022-49162 (GCVE-0-2022-49162)

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Sightings

Nomenclature

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