FKIE_CVE-2026-64234

Vulnerability from fkie_nvd - Published: 2026-07-24 16:16 - Updated: 2026-07-30 14:59
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: tty: serial: pch_uart: add check for dma_alloc_coherent() Add a check for dma_alloc_coherent() failure to prevent a potential NULL pointer dereference in dma_handle_rx(). Properly release DMA channels and the PCI device reference using a goto ladder if the allocation fails.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/66f8bfea055b23719b4fd6ce207c44de37d82a59
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6dd5c0ea139b586ad5a091677056dafd405cfe82
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6fe472c1bbbe238e91141f7cabc1226e96a60d43
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/760df81763b391bb5f0dcb0b7597b736da753ae4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d846df2dfbc2469a688833b4cc4f8aa80672bde8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d8d53a343ebe74274ca17b1e1993042e99f8c863
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/daea997bb244aeb50cbb2e5e075fb446a6cf068f
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/tty/serial/pch_uart.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "760df81763b391bb5f0dcb0b7597b736da753ae4",
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "versionType": "git"
            },
            {
              "lessThan": "5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf",
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "versionType": "git"
            },
            {
              "lessThan": "daea997bb244aeb50cbb2e5e075fb446a6cf068f",
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "versionType": "git"
            },
            {
              "lessThan": "6dd5c0ea139b586ad5a091677056dafd405cfe82",
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "versionType": "git"
            },
            {
              "lessThan": "d846df2dfbc2469a688833b4cc4f8aa80672bde8",
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "versionType": "git"
            },
            {
              "lessThan": "66f8bfea055b23719b4fd6ce207c44de37d82a59",
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "versionType": "git"
            },
            {
              "lessThan": "d8d53a343ebe74274ca17b1e1993042e99f8c863",
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "versionType": "git"
            },
            {
              "lessThan": "6fe472c1bbbe238e91141f7cabc1226e96a60d43",
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/tty/serial/pch_uart.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.38"
            },
            {
              "lessThan": "2.6.38",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.259",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.210",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.143",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "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\ntty: serial: pch_uart: add check for dma_alloc_coherent()\n\nAdd a check for dma_alloc_coherent() failure to prevent a potential\nNULL pointer dereference in dma_handle_rx(). Properly release DMA\nchannels and the PCI device reference using a goto ladder if the\nallocation fails."
    }
  ],
  "id": "CVE-2026-64234",
  "lastModified": "2026-07-30T14:59:47.950",
  "metrics": {},
  "published": "2026-07-24T16:16:52.610",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/66f8bfea055b23719b4fd6ce207c44de37d82a59"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6dd5c0ea139b586ad5a091677056dafd405cfe82"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6fe472c1bbbe238e91141f7cabc1226e96a60d43"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/760df81763b391bb5f0dcb0b7597b736da753ae4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d846df2dfbc2469a688833b4cc4f8aa80672bde8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d8d53a343ebe74274ca17b1e1993042e99f8c863"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/daea997bb244aeb50cbb2e5e075fb446a6cf068f"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}



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