CVE-2026-64234 tty: serial: pch_uart: add check for dma_alloc_coherent()

🗓️ 24 Jul 2026 15:27:40Reported by LinuxType

Kernel fix for pch_uart to check direct memory allocation and prevent NULL pointer in dma_handle_rx with proper cleanup.

Reporter	Title	Published	Views	Family All 22
ATTACKERKB	CVE-2026-64234	24 Jul 202615:27	–	attackerkb
CVE	CVE-2026-64234	24 Jul 202615:27	–	cve
Debian CVE	CVE-2026-64234	24 Jul 202615:27	–	debiancve
EUVD	EUVD-2026-48643	24 Jul 202615:27	–	euvd
NVD	CVE-2026-64234	24 Jul 202616:16	–	nvd
Tenable Nessus	openSUSE 16: cluster-md-kmp-64kb / cluster-md-kmp-azure / cluster-md-kmp-default / etc (openSUSE-SU-2026:21555-1)	13 Aug 202600:00	–	nessus
Tenable Nessus	Photon OS 5.0: Linux PHSA-2026-5.0-0895	26 Jun 202600:00	–	nessus
Tenable Nessus	Photon OS 5.0: Linux PHSA-2026-5.0-0926	24 Jul 202600:00	–	nessus
Tenable Nessus	Photon OS 5.0: Linux PHSA-2026-5.0-92-0895	10 Aug 202600:00	–	nessus
Tenable Nessus	Photon OS 5.0: Linux PHSA-2026-5.0-92-0926	10 Aug 202600:00	–	nessus

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/tty/serial/pch_uart.c"
    ],
    "versions": [
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "760df81763b391bb5f0dcb0b7597b736da753ae4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "daea997bb244aeb50cbb2e5e075fb446a6cf068f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "6dd5c0ea139b586ad5a091677056dafd405cfe82",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "d846df2dfbc2469a688833b4cc4f8aa80672bde8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "66f8bfea055b23719b4fd6ce207c44de37d82a59",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "d8d53a343ebe74274ca17b1e1993042e99f8c863",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "6fe472c1bbbe238e91141f7cabc1226e96a60d43",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/tty/serial/pch_uart.c"
    ],
    "versions": [
      {
        "version": "2.6.38",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.38",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.259",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.35",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.12",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/daea997bb244aeb50cbb2e5e075fb446a6cf068f
git	www.git.kernel.org/stable/c/d846df2dfbc2469a688833b4cc4f8aa80672bde8
git	www.git.kernel.org/stable/c/6dd5c0ea139b586ad5a091677056dafd405cfe82
git	www.git.kernel.org/stable/c/760df81763b391bb5f0dcb0b7597b736da753ae4
git	www.git.kernel.org/stable/c/6fe472c1bbbe238e91141f7cabc1226e96a60d43
git	www.git.kernel.org/stable/c/66f8bfea055b23719b4fd6ce207c44de37d82a59
git	www.git.kernel.org/stable/c/5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf
git	www.git.kernel.org/stable/c/d8d53a343ebe74274ca17b1e1993042e99f8c863

24 Jul 2026 15:27Current

EPSS0.00114