Vulnerability-Lookup

GHSA-MGWM-9WHM-8CXC

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-14 00:31

Details

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

media: amlogic-c3: Add validations for ae and awb config

Avoid invalid memory access if the zones_num is bigger than zone_weight.

This patch fixes the following smatch errors: drivers/media/platform/amlogic/c3/isp/c3-isp-params.c:111 c3_isp_params_awb_wt() error: buffer overflow 'cfg->zone_weight' 768 <= u32max drivers/media/platform/amlogic/c3/isp/c3-isp-params.c:111 c3_isp_params_awb_wt() error: buffer overflow 'cfg->zone_weight' 768 <= u32max drivers/media/platform/amlogic/c3/isp/c3-isp-params.c:227 c3_isp_params_ae_wt() error: buffer overflow 'cfg->zone_weight' 255 <= u32max drivers/media/platform/amlogic/c3/isp/c3-isp-params.c:227 c3_isp_params_ae_wt() error: buffer overflow 'cfg->zone_weight' 255 <= u32max

Severity

7.3 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-68230"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:20:11Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: amlogic-c3: Add validations for ae and awb config\n\nAvoid invalid memory access if the zones_num is bigger than\nzone_weight.\n\nThis patch fixes the following smatch errors:\ndrivers/media/platform/amlogic/c3/isp/c3-isp-params.c:111 c3_isp_params_awb_wt() error: buffer overflow \u0027cfg-\u003ezone_weight\u0027 768 \u003c= u32max\ndrivers/media/platform/amlogic/c3/isp/c3-isp-params.c:111 c3_isp_params_awb_wt() error: buffer overflow \u0027cfg-\u003ezone_weight\u0027 768 \u003c= u32max\ndrivers/media/platform/amlogic/c3/isp/c3-isp-params.c:227 c3_isp_params_ae_wt() error: buffer overflow \u0027cfg-\u003ezone_weight\u0027 255 \u003c= u32max\ndrivers/media/platform/amlogic/c3/isp/c3-isp-params.c:227 c3_isp_params_ae_wt() error: buffer overflow \u0027cfg-\u003ezone_weight\u0027 255 \u003c= u32max",
  "id": "GHSA-mgwm-9whm-8cxc",
  "modified": "2026-08-14T00:31:53Z",
  "published": "2026-08-10T15:33:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68230"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32cbe5474e74817aa8a576b94135cc45e59f5e07"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/391fe3e36e59f3c6e3d46edfb3a5de51e00cd216"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9724164f71974a2a44a5e026614fbcc05bab6d91"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-68230 (GCVE-0-2026-68230)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:00 – Updated: 2026-08-17 05:01

Title

media: amlogic-c3: Add validations for ae and awb config

Summary

In the Linux kernel, the following vulnerability has been resolved: media: amlogic-c3: Add validations for ae and awb config Avoid invalid memory access if the zones_num is bigger than zone_weight. This patch fixes the following smatch errors: drivers/media/platform/amlogic/c3/isp/c3-isp-params.c:111 c3_isp_params_awb_wt() error: buffer overflow 'cfg->zone_weight' 768 <= u32max drivers/media/platform/amlogic/c3/isp/c3-isp-params.c:111 c3_isp_params_awb_wt() error: buffer overflow 'cfg->zone_weight' 768 <= u32max drivers/media/platform/amlogic/c3/isp/c3-isp-params.c:227 c3_isp_params_ae_wt() error: buffer overflow 'cfg->zone_weight' 255 <= u32max drivers/media/platform/amlogic/c3/isp/c3-isp-params.c:227 c3_isp_params_ae_wt() error: buffer overflow 'cfg->zone_weight' 255 <= u32max

Severity

7.3 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/391fe3e36e59f3c6e…
https://git.kernel.org/stable/c/32cbe5474e74817aa…
https://git.kernel.org/stable/c/9724164f71974a2a4…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: fb2e135208f364f26b7579c191434d38655e813f , < 391fe3e36e59f3c6e3d46edfb3a5de51e00cd216 (git) Affected: fb2e135208f364f26b7579c191434d38655e813f , < 32cbe5474e74817aa8a576b94135cc45e59f5e07 (git) Affected: fb2e135208f364f26b7579c191434d38655e813f , < 9724164f71974a2a44a5e026614fbcc05bab6d91 (git)
Linux	Linux	Affected: 6.16 Unaffected: 0 , < 6.16 (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/amlogic/c3/isp/c3-isp-params.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "391fe3e36e59f3c6e3d46edfb3a5de51e00cd216",
              "status": "affected",
              "version": "fb2e135208f364f26b7579c191434d38655e813f",
              "versionType": "git"
            },
            {
              "lessThan": "32cbe5474e74817aa8a576b94135cc45e59f5e07",
              "status": "affected",
              "version": "fb2e135208f364f26b7579c191434d38655e813f",
              "versionType": "git"
            },
            {
              "lessThan": "9724164f71974a2a44a5e026614fbcc05bab6d91",
              "status": "affected",
              "version": "fb2e135208f364f26b7579c191434d38655e813f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/amlogic/c3/isp/c3-isp-params.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.42",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.6",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: amlogic-c3: Add validations for ae and awb config\n\nAvoid invalid memory access if the zones_num is bigger than\nzone_weight.\n\nThis patch fixes the following smatch errors:\ndrivers/media/platform/amlogic/c3/isp/c3-isp-params.c:111 c3_isp_params_awb_wt() error: buffer overflow \u0027cfg-\u003ezone_weight\u0027 768 \u003c= u32max\ndrivers/media/platform/amlogic/c3/isp/c3-isp-params.c:111 c3_isp_params_awb_wt() error: buffer overflow \u0027cfg-\u003ezone_weight\u0027 768 \u003c= u32max\ndrivers/media/platform/amlogic/c3/isp/c3-isp-params.c:227 c3_isp_params_ae_wt() error: buffer overflow \u0027cfg-\u003ezone_weight\u0027 255 \u003c= u32max\ndrivers/media/platform/amlogic/c3/isp/c3-isp-params.c:227 c3_isp_params_ae_wt() error: buffer overflow \u0027cfg-\u003ezone_weight\u0027 255 \u003c= u32max"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerability is reached only through the local V4L2 meta-output device node of the Amlogic C3 ISP driver, by opening /dev/videoX and issuing VIDIOC_QBUF plus VIDIOC_STREAMON ioctls. No network or adjacent-network path exists.\nAC:L - Both horiz_zones_num and vert_zones_num are copied verbatim from the queued parameters buffer with no validation, so setting them to 0xff deterministically produces a ~64KB out-of-bounds read on every stream start. No race, timing, or memory-layout condition is involved.\nPR:L - The attacker only needs read/write access to the ISP parameters video node (typically group video, or the camera service/HAL user on Android-class devices); no CAP_SYS_ADMIN or root is required, and every ioctl on the path is unprivileged.\nUI:N - The attacking process queues the malformed parameter buffer and starts streaming entirely on its own; no action by any other user or victim process is needed.\nS:U - The out-of-bounds access occurs in kernel memory within the same security authority as the kernel itself; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - zones_num can reach 255*255=65025 against a 255-byte (AE) or 768-byte (AWB) array inside a ~1.7KB kvmalloc buffer, so up to ~64KB of adjacent kernel heap is read out of bounds and pushed into device state \u2014 a large, attacker-positioned disclosure of kernel memory rather than a few strictly bounded bytes.\nI:L - The loop performs thousands of writes (up to 8128 register writes) of out-of-bounds heap data into the auto-incrementing AE/AWB weight LUT, far beyond its 32/96-entry depth, corrupting ISP hardware configuration and the statistics delivered to userspace; no arbitrary kernel memory write is available.\nA:H - Reading ~64KB past the end of a slab object can hit an unmapped or poisoned page and oops; the same code runs from c3_isp_params_isr() in interrupt context under spinlock_irqsave, where a fault reliably results in a kernel panic, and it is also an immediate KASAN slab-out-of-bounds."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:01:18.566Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/391fe3e36e59f3c6e3d46edfb3a5de51e00cd216"
        },
        {
          "url": "https://git.kernel.org/stable/c/32cbe5474e74817aa8a576b94135cc45e59f5e07"
        },
        {
          "url": "https://git.kernel.org/stable/c/9724164f71974a2a44a5e026614fbcc05bab6d91"
        }
      ],
      "title": "media: amlogic-c3: Add validations for ae and awb config",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68230",
    "datePublished": "2026-08-10T12:00:53.425Z",
    "dateReserved": "2026-07-30T09:28:09.376Z",
    "dateUpdated": "2026-08-17T05:01:18.566Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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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GHSA-MGWM-9WHM-8CXC

CVE-2026-68230 (GCVE-0-2026-68230)

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Sightings

Nomenclature