{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64461","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T15:36:31.789Z","datePublished":"2026-07-25T08:51:28.309Z","dateUpdated":"2026-08-17T04:56:06.127Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-17T04:56:06.127Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: mediatek: Fix IRQ domain leak when port fails to enable\n\nWhen mtk_pcie_enable_port() fails, mtk_pcie_port_free() removes the port\nfrom pcie->ports and frees the port structure. However, the IRQ domains set\nup earlier by mtk_pcie_init_irq_domain() are never freed.\n\nFix this by refactoring mtk_pcie_irq_teardown() into a per-port helper,\nmtk_pcie_irq_teardown_port(), and calling it from mtk_pcie_setup() when\nmtk_pcie_enable_port() fails. Since the IRQ teardown must only happen in\nthe probe error path (during resume, child devices may have active MSI\nmappings and the NOIRQ context prohibits sleeping locks),\nmtk_pcie_enable_port() is changed to return an error code so callers can\ndistinguish the two paths and act accordingly.\n\nThis issue was reported by Sashiko while reviewing the EcoNet EN7528 SoC\nsupport series."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/pcie-mediatek.c"],"versions":[{"version":"b099631df160ec608cd6147f4d20a8042567a5b8","lessThan":"e23da72ef202654a7d5269885c4fa39a8404db76","status":"affected","versionType":"git"},{"version":"b099631df160ec608cd6147f4d20a8042567a5b8","lessThan":"ec7c05eed47d8b15c45380aee7ca168a82e15035","status":"affected","versionType":"git"},{"version":"b099631df160ec608cd6147f4d20a8042567a5b8","lessThan":"1fbe8972a39548a633d06d7b03a01b7b119a2c12","status":"affected","versionType":"git"},{"version":"b099631df160ec608cd6147f4d20a8042567a5b8","lessThan":"fe8c701a53c2816cd82301f66c671d952003c1b0","status":"affected","versionType":"git"},{"version":"b099631df160ec608cd6147f4d20a8042567a5b8","lessThan":"ce52e494a7555bdae1d990a2654fd7547ef6d986","status":"affected","versionType":"git"},{"version":"b099631df160ec608cd6147f4d20a8042567a5b8","lessThan":"6e6a529d6f779413379b4404c9ef6a36c0337225","status":"affected","versionType":"git"},{"version":"b099631df160ec608cd6147f4d20a8042567a5b8","lessThan":"df77314b3bedbd9ad5d6f0682f98b99e3c5f7e2e","status":"affected","versionType":"git"},{"version":"b099631df160ec608cd6147f4d20a8042567a5b8","lessThan":"f865a57896bd92d7662eb2818d8f48872e2cbbc7","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/pcie-mediatek.c"],"versions":[{"version":"4.14","status":"affected"},{"version":"0","lessThan":"4.14","status":"unaffected","versionType":"semver"},{"version":"5.10.261","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.212","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.97","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.39","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.4","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.18.39"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"7.1.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/e23da72ef202654a7d5269885c4fa39a8404db76"},{"url":"https://git.kernel.org/stable/c/ec7c05eed47d8b15c45380aee7ca168a82e15035"},{"url":"https://git.kernel.org/stable/c/1fbe8972a39548a633d06d7b03a01b7b119a2c12"},{"url":"https://git.kernel.org/stable/c/fe8c701a53c2816cd82301f66c671d952003c1b0"},{"url":"https://git.kernel.org/stable/c/ce52e494a7555bdae1d990a2654fd7547ef6d986"},{"url":"https://git.kernel.org/stable/c/6e6a529d6f779413379b4404c9ef6a36c0337225"},{"url":"https://git.kernel.org/stable/c/df77314b3bedbd9ad5d6f0682f98b99e3c5f7e2e"},{"url":"https://git.kernel.org/stable/c/f865a57896bd92d7662eb2818d8f48872e2cbbc7"}],"title":"PCI: mediatek: Fix IRQ domain leak when port fails to enable","x_generator":{"engine":"bippy-1.2.0"}}}}