FKIE_CVE-2026-46296

Vulnerability from fkie_nvd - Published: 2026-06-08 17:16 - Updated: 2026-06-19 13:16
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: spi: s3c64xx: fix NULL-deref on driver unbind A change moving DMA channel allocation from probe() back to s3c64xx_spi_prepare_transfer() failed to remove the corresponding deallocation from remove(). Drop the bogus DMA channel release from remove() to avoid triggering a NULL-pointer dereference on driver unbind. This issue was flagged by Sashiko when reviewing a controller deregistration fix.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1108b8722b9ff0cdd3e8aa18d98244fcd93b6760
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1b66f16a571a10ba8889ac471755c8af9c5b9266
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/22788b1a8611380b141e09a8896702e32d164238
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/29e219a18e21258bdb4ee12cecd0e9ec87d7e6a7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/323a258f4b1916b5a3098618e036e033b2f2317f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/45daacbead8a009844bd5dba6cfa731332184d17
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-s3c64xx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "29e219a18e21258bdb4ee12cecd0e9ec87d7e6a7",
              "status": "affected",
              "version": "f52b03c707444c5a3d1a0b9c5724f93ddc3c588e",
              "versionType": "git"
            },
            {
              "lessThan": "1108b8722b9ff0cdd3e8aa18d98244fcd93b6760",
              "status": "affected",
              "version": "f52b03c707444c5a3d1a0b9c5724f93ddc3c588e",
              "versionType": "git"
            },
            {
              "lessThan": "323a258f4b1916b5a3098618e036e033b2f2317f",
              "status": "affected",
              "version": "f52b03c707444c5a3d1a0b9c5724f93ddc3c588e",
              "versionType": "git"
            },
            {
              "lessThan": "1b66f16a571a10ba8889ac471755c8af9c5b9266",
              "status": "affected",
              "version": "f52b03c707444c5a3d1a0b9c5724f93ddc3c588e",
              "versionType": "git"
            },
            {
              "lessThan": "22788b1a8611380b141e09a8896702e32d164238",
              "status": "affected",
              "version": "f52b03c707444c5a3d1a0b9c5724f93ddc3c588e",
              "versionType": "git"
            },
            {
              "lessThan": "45daacbead8a009844bd5dba6cfa731332184d17",
              "status": "affected",
              "version": "f52b03c707444c5a3d1a0b9c5724f93ddc3c588e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-s3c64xx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "lessThan": "6.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: s3c64xx: fix NULL-deref on driver unbind\n\nA change moving DMA channel allocation from probe() back to\ns3c64xx_spi_prepare_transfer() failed to remove the corresponding\ndeallocation from remove().\n\nDrop the bogus DMA channel release from remove() to avoid triggering a\nNULL-pointer dereference on driver unbind.\n\nThis issue was flagged by Sashiko when reviewing a controller\nderegistration fix."
    }
  ],
  "id": "CVE-2026-46296",
  "lastModified": "2026-06-19T13:16:36.040",
  "metrics": {},
  "published": "2026-06-08T17:16:48.037",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1108b8722b9ff0cdd3e8aa18d98244fcd93b6760"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1b66f16a571a10ba8889ac471755c8af9c5b9266"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/22788b1a8611380b141e09a8896702e32d164238"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/29e219a18e21258bdb4ee12cecd0e9ec87d7e6a7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/323a258f4b1916b5a3098618e036e033b2f2317f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/45daacbead8a009844bd5dba6cfa731332184d17"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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