CVE-2026-98587

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: firewire: cdev: fix back-transition for iso_resource_auto client resource The todo member of iso_resource_auto structure represents the state of the client resource and normally transitions in the following order: ISO_RES_AUTO_ALLOC -> ISO_RES_AUTO_REALLOC -> ISO_RES_AUTO_DEALLOC However, concurrent access from the work item and the file descriptor release function can cause the state to transition backwards from ISO_RES_AUTO_DEALLOC to ISO_RES_AUTO_REALLOC. Prevent the back-transition by checking the current state before updating it in the work item.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-10-18 16:17:11.297000

Last modified

2026-10-19 10:19:19.660000

View original CVE JSON

{
  "id": "CVE-2026-98587",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-10-18T16:17:11.297",
  "lastModified": "2026-10-19T10:19:19.660",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirewire: cdev: fix back-transition for iso_resource_auto client resource\n\nThe todo member of iso_resource_auto structure represents the state of the\nclient resource and normally transitions in the following order:\n\n    ISO_RES_AUTO_ALLOC -> ISO_RES_AUTO_REALLOC -> ISO_RES_AUTO_DEALLOC\n\nHowever, concurrent access from the work item and the file descriptor\nrelease function can cause the state to transition backwards from\nISO_RES_AUTO_DEALLOC to ISO_RES_AUTO_REALLOC.\n\nPrevent the back-transition by checking the current state before\nupdating it in the work item."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/firewire/core-cdev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "fcabbf40fae501379b4f3a057febe92d4b0ebdd8",
              "lessThan": "ee1df60a0d0e8ab4b00137135733bdadd6d33dab",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "fcabbf40fae501379b4f3a057febe92d4b0ebdd8",
              "lessThan": "c6b51091cafff9ce6c03c1416aa13864d17ab97c",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/firewire/core-cdev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "7.2",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "7.2",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.9",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/c6b51091cafff9ce6c03c1416aa13864d17ab97c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ee1df60a0d0e8ab4b00137135733bdadd6d33dab",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}