{"id":"CVE-2022-50246","state":"PUBLISHED","title":"usb: typec: tcpci: fix of node refcount leak in tcpci_register_port()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpci: fix of node refcount leak in tcpci_register_port()\n\nI got the following report while doing device(mt6370-tcpc) load\ntest with CONFIG_OF_UNITTEST and CONFIG_OF_DYNAMIC enabled:\n\n  OF: ERROR: memory leak, expected refcount 1 instead of 2,\n  of_node_get()/of_node_put() unbalanced - destroy cset entry:\n  attach overlay node /i2c/pmic@34/tcpc/connector\n\nThe 'fwnode' set in tcpci_parse_config() which is called\nin tcpci_register_port(), its node refcount is increased\nin device_get_named_child_node(). It needs be put while\nexiting, so call fwnode_handle_put() in the error path of\ntcpci_register_port() and in tcpci_unregister_port() to\navoid leak.","publishedAt":"2025-09-15T14:02:04.841Z","updatedAt":"2026-05-11T19:15:35.968Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5e85a04c8c0d271d7561a770b85741f186398868","status":"affected","lessThan":"4f257e2eba419ab4cd880c822346450e4e7b2af3","versionType":"git"},{"version":"5e85a04c8c0d271d7561a770b85741f186398868","status":"affected","lessThan":"d3b6c28a71f111a6c67ddc3238aab95910fd86cf","versionType":"git"},{"version":"5e85a04c8c0d271d7561a770b85741f186398868","status":"affected","lessThan":"ba75be6f0d9d028d20852564206565a4c03e3288","versionType":"git"},{"version":"5e85a04c8c0d271d7561a770b85741f186398868","status":"affected","lessThan":"e75a324409715bd71348f79a49aa61b69dbeb676","versionType":"git"},{"version":"5e85a04c8c0d271d7561a770b85741f186398868","status":"affected","lessThan":"5f125507d2270035dfcf83fbff6cff5a143e200c","versionType":"git"},{"version":"5e85a04c8c0d271d7561a770b85741f186398868","status":"affected","lessThan":"0384e87e3fec735e47f1c133c796f32ef7a72a9b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/tcpm/tcpci.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/tcpm/tcpci.c"]}],"references":["https://git.kernel.org/stable/c/4f257e2eba419ab4cd880c822346450e4e7b2af3","https://git.kernel.org/stable/c/d3b6c28a71f111a6c67ddc3238aab95910fd86cf","https://git.kernel.org/stable/c/ba75be6f0d9d028d20852564206565a4c03e3288","https://git.kernel.org/stable/c/e75a324409715bd71348f79a49aa61b69dbeb676","https://git.kernel.org/stable/c/5f125507d2270035dfcf83fbff6cff5a143e200c","https://git.kernel.org/stable/c/0384e87e3fec735e47f1c133c796f32ef7a72a9b"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50246.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50246","state":"PUBLISHED","datePublished":"2025-09-15T14:02:04.841Z","dateUpdated":"2026-05-11T19:15:35.968Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-15T13:58:00.972Z"},"containers":{"cna":{"title":"usb: typec: tcpci: fix of node refcount leak in tcpci_register_port()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpci: fix of node refcount leak in tcpci_register_port()\n\nI got the following report while doing device(mt6370-tcpc) load\ntest with CONFIG_OF_UNITTEST and CONFIG_OF_DYNAMIC enabled:\n\n  OF: ERROR: memory leak, expected refcount 1 instead of 2,\n  of_node_get()/of_node_put() unbalanced - destroy cset entry:\n  attach overlay node /i2c/pmic@34/tcpc/connector\n\nThe 'fwnode' set in tcpci_parse_config() which is called\nin tcpci_register_port(), its node refcount is increased\nin device_get_named_child_node(). It needs be put while\nexiting, so call fwnode_handle_put() in the error path of\ntcpci_register_port() and in tcpci_unregister_port() to\navoid leak."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5e85a04c8c0d271d7561a770b85741f186398868","status":"affected","lessThan":"4f257e2eba419ab4cd880c822346450e4e7b2af3","versionType":"git"},{"version":"5e85a04c8c0d271d7561a770b85741f186398868","status":"affected","lessThan":"d3b6c28a71f111a6c67ddc3238aab95910fd86cf","versionType":"git"},{"version":"5e85a04c8c0d271d7561a770b85741f186398868","status":"affected","lessThan":"ba75be6f0d9d028d20852564206565a4c03e3288","versionType":"git"},{"version":"5e85a04c8c0d271d7561a770b85741f186398868","status":"affected","lessThan":"e75a324409715bd71348f79a49aa61b69dbeb676","versionType":"git"},{"version":"5e85a04c8c0d271d7561a770b85741f186398868","status":"affected","lessThan":"5f125507d2270035dfcf83fbff6cff5a143e200c","versionType":"git"},{"version":"5e85a04c8c0d271d7561a770b85741f186398868","status":"affected","lessThan":"0384e87e3fec735e47f1c133c796f32ef7a72a9b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/tcpm/tcpci.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/tcpm/tcpci.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/4f257e2eba419ab4cd880c822346450e4e7b2af3"},{"url":"https://git.kernel.org/stable/c/d3b6c28a71f111a6c67ddc3238aab95910fd86cf"},{"url":"https://git.kernel.org/stable/c/ba75be6f0d9d028d20852564206565a4c03e3288"},{"url":"https://git.kernel.org/stable/c/e75a324409715bd71348f79a49aa61b69dbeb676"},{"url":"https://git.kernel.org/stable/c/5f125507d2270035dfcf83fbff6cff5a143e200c"},{"url":"https://git.kernel.org/stable/c/0384e87e3fec735e47f1c133c796f32ef7a72a9b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:15:35.968Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.4.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.10.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.15.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.0.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.1.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}