FKIE_CVE-2026-64462

Vulnerability from fkie_nvd - Published: 2026-07-25 10:17 - Updated: 2026-07-25 10:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI: altera: Fix resource leaks on probe failure The chained IRQ handler is set during probe, but is only removed during the driver remove(). If pci_host_probe() fails, the handler and INTx IRQ domain remain set even though the devm-managed host bridge storage containing struct altera_pcie will be released, leaving the handler with a stale data pointer. Interrupts are also enabled before pci_host_probe() is called. If probe fails after that point, the controller interrupt source should be disabled before the chained handler and INTx domain are removed. So set the chained handler only after the INTx domain has been created. Disable controller interrupts during IRQ teardown, and tear the IRQ setup down if pci_host_probe() fails. [mani: commit log]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/09c43b7b7d29c6fadb27f32cdf7f3bb6598befa9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0db9aa9ec51be0a0ffdcdfd9af2b7bf3aeb7911a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6864c789b570e57f932847fa83f6b56917182d73
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7a94138caeb27f3c49c1dbd93bf422098925bb28
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/99fc088d6cc6890ae35fa2f29c50ebe027844c20
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9cf0cc481e1645ec65e61486ae41c486c59781cb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a25bfa2a6665a1d77324d4a609e7513b87680227
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/af7cf5d56d7d57c4fbfdb7b5b693790f331b07b7
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/controller/pcie-altera.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "af7cf5d56d7d57c4fbfdb7b5b693790f331b07b7",
              "status": "affected",
              "version": "c63aed7334c21de8d626ff028ccad98cf5847a0e",
              "versionType": "git"
            },
            {
              "lessThan": "9cf0cc481e1645ec65e61486ae41c486c59781cb",
              "status": "affected",
              "version": "c63aed7334c21de8d626ff028ccad98cf5847a0e",
              "versionType": "git"
            },
            {
              "lessThan": "99fc088d6cc6890ae35fa2f29c50ebe027844c20",
              "status": "affected",
              "version": "c63aed7334c21de8d626ff028ccad98cf5847a0e",
              "versionType": "git"
            },
            {
              "lessThan": "a25bfa2a6665a1d77324d4a609e7513b87680227",
              "status": "affected",
              "version": "c63aed7334c21de8d626ff028ccad98cf5847a0e",
              "versionType": "git"
            },
            {
              "lessThan": "0db9aa9ec51be0a0ffdcdfd9af2b7bf3aeb7911a",
              "status": "affected",
              "version": "c63aed7334c21de8d626ff028ccad98cf5847a0e",
              "versionType": "git"
            },
            {
              "lessThan": "09c43b7b7d29c6fadb27f32cdf7f3bb6598befa9",
              "status": "affected",
              "version": "c63aed7334c21de8d626ff028ccad98cf5847a0e",
              "versionType": "git"
            },
            {
              "lessThan": "6864c789b570e57f932847fa83f6b56917182d73",
              "status": "affected",
              "version": "c63aed7334c21de8d626ff028ccad98cf5847a0e",
              "versionType": "git"
            },
            {
              "lessThan": "7a94138caeb27f3c49c1dbd93bf422098925bb28",
              "status": "affected",
              "version": "c63aed7334c21de8d626ff028ccad98cf5847a0e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/controller/pcie-altera.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
              "lessThan": "5.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2-rc1",
              "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\nPCI: altera: Fix resource leaks on probe failure\n\nThe chained IRQ handler is set during probe, but is only removed during the\ndriver remove(). If pci_host_probe() fails, the handler and INTx IRQ\ndomain remain set even though the devm-managed host bridge storage\ncontaining struct altera_pcie will be released, leaving the handler with\na stale data pointer.\n\nInterrupts are also enabled before pci_host_probe() is called. If probe\nfails after that point, the controller interrupt source should be disabled\nbefore the chained handler and INTx domain are removed.\n\nSo set the chained handler only after the INTx domain has been created.\nDisable controller interrupts during IRQ teardown, and tear the IRQ setup\ndown if pci_host_probe() fails.\n\n[mani: commit log]"
    }
  ],
  "id": "CVE-2026-64462",
  "lastModified": "2026-07-25T10:17:31.420",
  "metrics": {},
  "published": "2026-07-25T10:17:31.420",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/09c43b7b7d29c6fadb27f32cdf7f3bb6598befa9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0db9aa9ec51be0a0ffdcdfd9af2b7bf3aeb7911a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6864c789b570e57f932847fa83f6b56917182d73"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7a94138caeb27f3c49c1dbd93bf422098925bb28"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/99fc088d6cc6890ae35fa2f29c50ebe027844c20"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9cf0cc481e1645ec65e61486ae41c486c59781cb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a25bfa2a6665a1d77324d4a609e7513b87680227"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/af7cf5d56d7d57c4fbfdb7b5b693790f331b07b7"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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