{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b6ef9161e43ad58c3824bd76dc87716276f0cd70"
            },
            {
              "fixed": "8176773dfceae7978b01c20b233693e072053700"
            },
            {
              "fixed": "c2c7733101bb8c0b29ac9ee41073eaf602821a59"
            },
            {
              "fixed": "83d7ec14b0938ad8cae008058fd6f912f4a9a312"
            },
            {
              "fixed": "44567537a2623dcd2b4018a7f043cf8069579e5d"
            },
            {
              "fixed": "41826e5297e67cd96a0a46fde06a5069a8ce436a"
            },
            {
              "fixed": "b3a3831b2eb884641906fc5e46207b205b6aea13"
            },
            {
              "fixed": "0405a65e4ebd9eac13a765f9f02ac05851ca5421"
            },
            {
              "fixed": "37738fdf2ab1e504d1c63ce5bc0aeb6452d8f057"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.12.0"
            },
            {
              "fixed": "5.10.260"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.211"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.177"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.144"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.95"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.38"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63798.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/imgpdc: Fix resource leak, add missing chained handler cleanup on remove\n\nThe driver allocates domain generic chips using\nirq_alloc_domain_generic_chips() during probe and sets up chained\nhandlers using irq_set_chained_handler_and_data(). However, on driver\nremoval, the generic chips are not freed and the chained handlers are\nnot removed.\n\nThe generic chips remain on the global gc_list and may later be accessed by\ngeneric interrupt chip suspend, resume, or shutdown callbacks after the\ndriver has been removed, potentially resulting in a use-after-free and\nkernel crash.\n\nThe chained handlers that were installed in probe for peripheral and\nsyswake interrupts are also left dangling, which can lead to spurious\ninterrupts accessing freed memory.\n\nFix these issues by:\n\n  - Setting IRQ_DOMAIN_FLAG_DESTROY_GC flag in domain-\u003eflags, so the\n    core code automatically removes generic chips when irq_domain_remove()\n    is called\n\n  - Clearing all chained handlers with NULL in pdc_intc_remove()",
  "id": "CVE-2026-63798",
  "modified": "2026-07-21T03:41:55.488969551Z",
  "published": "2026-07-19T12:02:05.783Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0405a65e4ebd9eac13a765f9f02ac05851ca5421"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/37738fdf2ab1e504d1c63ce5bc0aeb6452d8f057"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/41826e5297e67cd96a0a46fde06a5069a8ce436a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/44567537a2623dcd2b4018a7f043cf8069579e5d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8176773dfceae7978b01c20b233693e072053700"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83d7ec14b0938ad8cae008058fd6f912f4a9a312"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b3a3831b2eb884641906fc5e46207b205b6aea13"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c2c7733101bb8c0b29ac9ee41073eaf602821a59"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63798.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63798"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "irqchip/imgpdc: Fix resource leak, add missing chained handler cleanup on remove"
}