{"id":"CVE-2022-49454","state":"PUBLISHED","title":"PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup()\n\nThe of_find_compatible_node() function returns a node pointer with\nrefcount incremented, We should use of_node_put() on it when done\nAdd the missing of_node_put() to release the refcount.","publishedAt":"2025-02-26T02:13:03.435Z","updatedAt":"2026-05-11T19:00:11.386Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"87e8657ba99cac87b84c7f8ead91b44d88345504","status":"affected","lessThan":"ad1c9d13e04509ae24fae8dd2897148657323519","versionType":"git"},{"version":"87e8657ba99cac87b84c7f8ead91b44d88345504","status":"affected","lessThan":"4cef4237d6c37257cb6ddc397723e9c0dded0efe","versionType":"git"},{"version":"87e8657ba99cac87b84c7f8ead91b44d88345504","status":"affected","lessThan":"09b2d906d78ddf5042b1f3e0091835fc6997e8a4","versionType":"git"},{"version":"87e8657ba99cac87b84c7f8ead91b44d88345504","status":"affected","lessThan":"214e0d8fe4a813ae6ffd62bc2dfe7544c20914f4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/pcie-mediatek.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.46","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.17.14","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18.3","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/pcie-mediatek.c"]}],"references":["https://git.kernel.org/stable/c/ad1c9d13e04509ae24fae8dd2897148657323519","https://git.kernel.org/stable/c/4cef4237d6c37257cb6ddc397723e9c0dded0efe","https://git.kernel.org/stable/c/09b2d906d78ddf5042b1f3e0091835fc6997e8a4","https://git.kernel.org/stable/c/214e0d8fe4a813ae6ffd62bc2dfe7544c20914f4"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49454.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49454","state":"PUBLISHED","datePublished":"2025-02-26T02:13:03.435Z","dateUpdated":"2026-05-11T19:00:11.386Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T02:08:31.573Z"},"containers":{"cna":{"title":"PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup()\n\nThe of_find_compatible_node() function returns a node pointer with\nrefcount incremented, We should use of_node_put() on it when done\nAdd the missing of_node_put() to release the refcount."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"87e8657ba99cac87b84c7f8ead91b44d88345504","status":"affected","lessThan":"ad1c9d13e04509ae24fae8dd2897148657323519","versionType":"git"},{"version":"87e8657ba99cac87b84c7f8ead91b44d88345504","status":"affected","lessThan":"4cef4237d6c37257cb6ddc397723e9c0dded0efe","versionType":"git"},{"version":"87e8657ba99cac87b84c7f8ead91b44d88345504","status":"affected","lessThan":"09b2d906d78ddf5042b1f3e0091835fc6997e8a4","versionType":"git"},{"version":"87e8657ba99cac87b84c7f8ead91b44d88345504","status":"affected","lessThan":"214e0d8fe4a813ae6ffd62bc2dfe7544c20914f4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/pcie-mediatek.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.46","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.17.14","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18.3","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/controller/pcie-mediatek.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ad1c9d13e04509ae24fae8dd2897148657323519"},{"url":"https://git.kernel.org/stable/c/4cef4237d6c37257cb6ddc397723e9c0dded0efe"},{"url":"https://git.kernel.org/stable/c/09b2d906d78ddf5042b1f3e0091835fc6997e8a4"},{"url":"https://git.kernel.org/stable/c/214e0d8fe4a813ae6ffd62bc2dfe7544c20914f4"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:00:11.386Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.15.46"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.17.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.18.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2022-49454","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:40:23.165475Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","description":"CWE-noinfo Not enough information"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T19:46:47.802Z"}}]}}}