CVE-2022-50576 serial: pch: Fix PCI device refcount leak in pch_request_dma()

🗓️ 22 Oct 2025 13:23:30Reported by LinuxType

Fix device refcount leak in serial pch_request_dma by adding pci_dev_put() on all paths.

Reporter	Title	Published	Views	Family All 50
AstraLinux	Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10	3 May 202623:59	–	astralinux
CNNVD	Linux kernel 安全漏洞	22 Oct 202500:00	–	cnnvd
CVE	CVE-2022-50576	22 Oct 202513:23	–	cve
Debian CVE	CVE-2022-50576	22 Oct 202513:23	–	debiancve
EUVD	EUVD-2022-55652	22 Oct 202515:31	–	euvd
NVD	CVE-2022-50576	22 Oct 202514:15	–	nvd
OpenVAS	SUSE: Security Advisory (SUSE-SU-2025:4111-1)	19 Nov 202500:00	–	openvas
OpenVAS	SUSE: Security Advisory (SUSE-SU-2025:4320-1)	8 Dec 202500:00	–	openvas
OSV	CVE-2022-50576 serial: pch: Fix PCI device refcount leak in pch_request_dma()	22 Oct 202513:23	–	osv
OSV	DEBIAN-CVE-2022-50576	22 Oct 202514:15	–	osv

[
  {
    "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": "90ff030ca10b69feeebda1427550ebf9ed2ad868",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "56e5a7c5ee3f0dc8978b5df2b1a98a1b060c5e2a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "dfd15c5550b9190d5b0f9bcacb3e6436322f3854",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "d165388227aa7e46a9751b90bae6337b5335cdbb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "07f4ca68b0f6bf84b6b391c14b59fd179fcde9c5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "6f7d82380fbeaed3a940efc33c23f0c4bbd0fc02",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "4f5d28865c665c9064de631a518f9bc8099d9ce4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "516614a371c26e3334625b4bca19a5362bf658d6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
        "lessThan": "8be3a7bf773700534a6e8f87f6ed2ed111254be5",
        "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": "4.9.337",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.14.303",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.270",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.229",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.163",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.86",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.0.16",
        "lessThanOrEqual": "6.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.2",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/4f5d28865c665c9064de631a518f9bc8099d9ce4
git	www.git.kernel.org/stable/c/6f7d82380fbeaed3a940efc33c23f0c4bbd0fc02
git	www.git.kernel.org/stable/c/56e5a7c5ee3f0dc8978b5df2b1a98a1b060c5e2a
git	www.git.kernel.org/stable/c/516614a371c26e3334625b4bca19a5362bf658d6
git	www.git.kernel.org/stable/c/07f4ca68b0f6bf84b6b391c14b59fd179fcde9c5
git	www.git.kernel.org/stable/c/90ff030ca10b69feeebda1427550ebf9ed2ad868
git	www.git.kernel.org/stable/c/dfd15c5550b9190d5b0f9bcacb3e6436322f3854
git	www.git.kernel.org/stable/c/d165388227aa7e46a9751b90bae6337b5335cdbb
git	www.git.kernel.org/stable/c/8be3a7bf773700534a6e8f87f6ed2ed111254be5

11 May 2026 19:22Current

EPSS0.00067