{"api_version":"1","generated_at":"2026-07-23T19:00:33+00:00","cve":"CVE-2026-63798","urls":{"html":"https://cve.report/CVE-2026-63798","api":"https://cve.report/api/cve/CVE-2026-63798.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-63798","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63798"},"summary":{"title":"irqchip/imgpdc: Fix resource leak, add missing chained handler cleanup on remove","description":"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->flags, 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()","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 12:16:52","updated_at":"2026-07-19 12:16:52"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/41826e5297e67cd96a0a46fde06a5069a8ce436a","name":"https://git.kernel.org/stable/c/41826e5297e67cd96a0a46fde06a5069a8ce436a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8176773dfceae7978b01c20b233693e072053700","name":"https://git.kernel.org/stable/c/8176773dfceae7978b01c20b233693e072053700","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/37738fdf2ab1e504d1c63ce5bc0aeb6452d8f057","name":"https://git.kernel.org/stable/c/37738fdf2ab1e504d1c63ce5bc0aeb6452d8f057","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b3a3831b2eb884641906fc5e46207b205b6aea13","name":"https://git.kernel.org/stable/c/b3a3831b2eb884641906fc5e46207b205b6aea13","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c2c7733101bb8c0b29ac9ee41073eaf602821a59","name":"https://git.kernel.org/stable/c/c2c7733101bb8c0b29ac9ee41073eaf602821a59","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/44567537a2623dcd2b4018a7f043cf8069579e5d","name":"https://git.kernel.org/stable/c/44567537a2623dcd2b4018a7f043cf8069579e5d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/83d7ec14b0938ad8cae008058fd6f912f4a9a312","name":"https://git.kernel.org/stable/c/83d7ec14b0938ad8cae008058fd6f912f4a9a312","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0405a65e4ebd9eac13a765f9f02ac05851ca5421","name":"https://git.kernel.org/stable/c/0405a65e4ebd9eac13a765f9f02ac05851ca5421","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-63798","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63798","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b6ef9161e43ad58c3824bd76dc87716276f0cd70 8176773dfceae7978b01c20b233693e072053700 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b6ef9161e43ad58c3824bd76dc87716276f0cd70 c2c7733101bb8c0b29ac9ee41073eaf602821a59 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b6ef9161e43ad58c3824bd76dc87716276f0cd70 83d7ec14b0938ad8cae008058fd6f912f4a9a312 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b6ef9161e43ad58c3824bd76dc87716276f0cd70 44567537a2623dcd2b4018a7f043cf8069579e5d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.211 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.177 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.144 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.95 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.38 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.3 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"63798","cve":"CVE-2026-63798","epss":"0.001770000","percentile":"0.074750000","score_date":"2026-07-20","updated_at":"2026-07-21 00:13:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/irqchip/irq-imgpdc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8176773dfceae7978b01c20b233693e072053700","status":"affected","version":"b6ef9161e43ad58c3824bd76dc87716276f0cd70","versionType":"git"},{"lessThan":"c2c7733101bb8c0b29ac9ee41073eaf602821a59","status":"affected","version":"b6ef9161e43ad58c3824bd76dc87716276f0cd70","versionType":"git"},{"lessThan":"83d7ec14b0938ad8cae008058fd6f912f4a9a312","status":"affected","version":"b6ef9161e43ad58c3824bd76dc87716276f0cd70","versionType":"git"},{"lessThan":"44567537a2623dcd2b4018a7f043cf8069579e5d","status":"affected","version":"b6ef9161e43ad58c3824bd76dc87716276f0cd70","versionType":"git"},{"lessThan":"41826e5297e67cd96a0a46fde06a5069a8ce436a","status":"affected","version":"b6ef9161e43ad58c3824bd76dc87716276f0cd70","versionType":"git"},{"lessThan":"b3a3831b2eb884641906fc5e46207b205b6aea13","status":"affected","version":"b6ef9161e43ad58c3824bd76dc87716276f0cd70","versionType":"git"},{"lessThan":"0405a65e4ebd9eac13a765f9f02ac05851ca5421","status":"affected","version":"b6ef9161e43ad58c3824bd76dc87716276f0cd70","versionType":"git"},{"lessThan":"37738fdf2ab1e504d1c63ce5bc0aeb6452d8f057","status":"affected","version":"b6ef9161e43ad58c3824bd76dc87716276f0cd70","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/irqchip/irq-imgpdc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.12"},{"lessThan":"3.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.260","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.144","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.95","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.38","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.3","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.260","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.211","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.177","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.144","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.95","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.38","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.3","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"3.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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->flags, 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()"}],"providerMetadata":{"dateUpdated":"2026-07-19T12:02:05.783Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/8176773dfceae7978b01c20b233693e072053700"},{"url":"https://git.kernel.org/stable/c/c2c7733101bb8c0b29ac9ee41073eaf602821a59"},{"url":"https://git.kernel.org/stable/c/83d7ec14b0938ad8cae008058fd6f912f4a9a312"},{"url":"https://git.kernel.org/stable/c/44567537a2623dcd2b4018a7f043cf8069579e5d"},{"url":"https://git.kernel.org/stable/c/41826e5297e67cd96a0a46fde06a5069a8ce436a"},{"url":"https://git.kernel.org/stable/c/b3a3831b2eb884641906fc5e46207b205b6aea13"},{"url":"https://git.kernel.org/stable/c/0405a65e4ebd9eac13a765f9f02ac05851ca5421"},{"url":"https://git.kernel.org/stable/c/37738fdf2ab1e504d1c63ce5bc0aeb6452d8f057"}],"title":"irqchip/imgpdc: Fix resource leak, add missing chained handler cleanup on remove","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-63798","datePublished":"2026-07-19T12:02:05.783Z","dateReserved":"2026-07-19T07:54:57.012Z","dateUpdated":"2026-07-19T12:02:05.783Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 12:16:52","lastModifiedDate":"2026-07-19 12:16:52","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"63798","Ordinal":"1","Title":"irqchip/imgpdc: Fix resource leak, add missing chained handler c","CVE":"CVE-2026-63798","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"63798","Ordinal":"1","NoteData":"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->flags, 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()","Type":"Description","Title":"irqchip/imgpdc: Fix resource leak, add missing chained handler c"}]}}}