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FKIE_CVE-2026-72384

Vulnerability from fkie_nvd - Published: 2026-08-15 06:22 - Updated: 2026-08-17 06:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: irqchip/ts4800: Fix missing chained handler cleanup on remove The driver installs a chained handler for the parent interrupt during probe using irq_set_chained_handler_and_data(), but the remove function does not clear this handler. This leaves a dangling handler that may be called when the parent interrupt fires after the driver has been removed, potentially accessing freed memory and causing a kernel crash. Additionally, the parent_irq obtained via irq_of_parse_and_map() is not stored, making it inaccessible in the remove function. Moreover, interrupt mappings created during probe are not properly disposed. Fix this by: - Saving parent_irq in probe - Clearing the chained handler with NULL in ts4800_ic_remove() - Disposing all IRQ mappings before domain removal to prevent resource leaks
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3f31f49afffa169cd01e6c37568c4df3eb1051af
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4e8d498d32b6c67d73bb8b317ff316ff37897a3e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/98bf7e54cec07d514b3575c11896a8b12d50ecc4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9ed0dca2aa05908b33ecf0bb15c7953947529542
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e6b674dc341c6add7d85bec2ec22caf1aad35795
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/irqchip/irq-ts4800.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c",
              "status": "affected",
              "version": "d01f8633d52e4dac5ee598b87d49fd23346ccfd6",
              "versionType": "git"
            },
            {
              "lessThan": "e6b674dc341c6add7d85bec2ec22caf1aad35795",
              "status": "affected",
              "version": "d01f8633d52e4dac5ee598b87d49fd23346ccfd6",
              "versionType": "git"
            },
            {
              "lessThan": "3f31f49afffa169cd01e6c37568c4df3eb1051af",
              "status": "affected",
              "version": "d01f8633d52e4dac5ee598b87d49fd23346ccfd6",
              "versionType": "git"
            },
            {
              "lessThan": "4e8d498d32b6c67d73bb8b317ff316ff37897a3e",
              "status": "affected",
              "version": "d01f8633d52e4dac5ee598b87d49fd23346ccfd6",
              "versionType": "git"
            },
            {
              "lessThan": "9ed0dca2aa05908b33ecf0bb15c7953947529542",
              "status": "affected",
              "version": "d01f8633d52e4dac5ee598b87d49fd23346ccfd6",
              "versionType": "git"
            },
            {
              "lessThan": "98bf7e54cec07d514b3575c11896a8b12d50ecc4",
              "status": "affected",
              "version": "d01f8633d52e4dac5ee598b87d49fd23346ccfd6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/irqchip/irq-ts4800.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.5"
            },
            {
              "lessThan": "4.5",
              "status": "unaffected",
              "version": "0",
              "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": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "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\nirqchip/ts4800: Fix missing chained handler cleanup on remove\n\nThe driver installs a chained handler for the parent interrupt during probe\nusing irq_set_chained_handler_and_data(), but the remove function does not\nclear this handler. This leaves a dangling handler that may be called when\nthe parent interrupt fires after the driver has been removed, potentially\naccessing freed memory and causing a kernel crash.\n\nAdditionally, the parent_irq obtained via irq_of_parse_and_map() is not\nstored, making it inaccessible in the remove function. Moreover, interrupt\nmappings created during probe are not properly disposed.\n\nFix this by:\n\n   - Saving parent_irq in probe\n   - Clearing the chained handler with NULL in ts4800_ic_remove()\n   - Disposing all IRQ mappings before domain removal to prevent resource\n     leaks"
    }
  ],
  "id": "CVE-2026-72384",
  "lastModified": "2026-08-17T06:18:43.083",
  "metrics": {},
  "published": "2026-08-15T06:22:11.907",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3f31f49afffa169cd01e6c37568c4df3eb1051af"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4e8d498d32b6c67d73bb8b317ff316ff37897a3e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/98bf7e54cec07d514b3575c11896a8b12d50ecc4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9ed0dca2aa05908b33ecf0bb15c7953947529542"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e6b674dc341c6add7d85bec2ec22caf1aad35795"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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