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CVE-2026-89877

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: media: saa7164: fix cleanup on resource allocation failure saa7164_dev_setup() adds the device to the global saa7164_devlist before requesting the PCI BAR memory regions. If get_resources() fails, saa7164_dev_setup() decrements the device count and returns an error, but leaves the device on saa7164_devlist. The probe error path then frees the device, leaving a dangling entry on the global list. Reuse the existing MMIO mapping error path to remove the device from saa7164_devlist and decrement the device count before returning. Also release BAR0 if it was successfully requested but the BAR2 request fails.

Severity
HIGH
CVSS score
8.4 (v3.1)
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-09-16 11:16:55.987000
Last modified
2026-10-30 13:20:34.540000
View original CVE JSON 
{
  "id": "CVE-2026-89877",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-16T11:16:55.987",
  "lastModified": "2026-10-30T13:20:34.540",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: saa7164: fix cleanup on resource allocation failure\n\nsaa7164_dev_setup() adds the device to the global saa7164_devlist before\nrequesting the PCI BAR memory regions.\n\nIf get_resources() fails, saa7164_dev_setup() decrements the device count\nand returns an error, but leaves the device on saa7164_devlist. The probe\nerror path then frees the device, leaving a dangling entry on the global\nlist.\n\nReuse the existing MMIO mapping error path to remove the device from\nsaa7164_devlist and decrement the device count before returning.\n\nAlso release BAR0 if it was successfully requested but the BAR2 request\nfails."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/media/pci/saa7164/saa7164-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "443c1228d50518f3c550e1fef490a2c9d9246ce7",
              "lessThan": "ac9d7ca8199c64c320ba8177e3c0f7b0deb7ff06",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "443c1228d50518f3c550e1fef490a2c9d9246ce7",
              "lessThan": "99bf01e2563f8bdfe5f25e489596cff455a35d6b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "443c1228d50518f3c550e1fef490a2c9d9246ce7",
              "lessThan": "daa5b32cdf7db81a07ee2a91ce092a363e7754aa",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "443c1228d50518f3c550e1fef490a2c9d9246ce7",
              "lessThan": "77f216f8de6221efb6f6c471bc9e598f1879825b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "443c1228d50518f3c550e1fef490a2c9d9246ce7",
              "lessThan": "69259c627009bf7621010ae9e997dad2dad3339c",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "443c1228d50518f3c550e1fef490a2c9d9246ce7",
              "lessThan": "4d2048466af9e2c960c5be6dcd317e3b657d268b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "443c1228d50518f3c550e1fef490a2c9d9246ce7",
              "lessThan": "fc65623524b5bf23baddc6ae688d954fba0d5de2",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "443c1228d50518f3c550e1fef490a2c9d9246ce7",
              "lessThan": "28e84c6e2e6753ed238ea097b2842a32a6a6879b",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/media/pci/saa7164/saa7164-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "2.6.32",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "2.6.32",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.10.273",
              "lessThanOrEqual": "5.10.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.15.224",
              "lessThanOrEqual": "5.15.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.188",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.157",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.110",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.51",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.5",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.4,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 5.9
      }
    ]
  },
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/28e84c6e2e6753ed238ea097b2842a32a6a6879b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4d2048466af9e2c960c5be6dcd317e3b657d268b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/69259c627009bf7621010ae9e997dad2dad3339c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/77f216f8de6221efb6f6c471bc9e598f1879825b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/99bf01e2563f8bdfe5f25e489596cff455a35d6b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ac9d7ca8199c64c320ba8177e3c0f7b0deb7ff06",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/daa5b32cdf7db81a07ee2a91ce092a363e7754aa",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fc65623524b5bf23baddc6ae688d954fba0d5de2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}