{"api_version":"1","generated_at":"2026-11-08T21:46:01+00:00","cve":"CVE-2026-90126","urls":{"html":"https://cve.report/CVE-2026-90126","api":"https://cve.report/api/cve/CVE-2026-90126.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-90126","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-90126"},"summary":{"title":"rtc: pcf8563: fix clock provider leak on unbind","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: pcf8563: fix clock provider leak on unbind\n\npcf8563_clkout_register_clk() registers the CLKOUT clock provider with\nof_clk_add_provider(), but nothing ever unwinds it: there is no\nof_clk_del_provider() call and the driver has no remove callback. Each\nof_clk_add_provider() allocates a struct of_clk_provider, takes a\nreference on the OF node and adds an entry to the global of_clk_providers\nlist, none of which is released when the device is unbound. Every\nbind/unbind (or module reload) therefore leaks a provider structure and\nan of_node reference.\n\nThe clock itself is already device-managed (devm_clk_register()); only\nthe provider registration was not. Use devm_of_clk_add_hw_provider() so\nthe provider is removed automatically on unbind. Tie it to the parent\ni2c device, whose OF node carries the #clock-cells and clock-output-names\nproperties (the RTC class device has no OF node of its own).","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:04","updated_at":"2026-10-19 09:19:02"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/6218c0533a72235ec9c5f41b812c63d963bd4a3e","name":"https://git.kernel.org/stable/c/6218c0533a72235ec9c5f41b812c63d963bd4a3e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/08a59c28c2bdbcd655e99526c86a41dc83834283","name":"https://git.kernel.org/stable/c/08a59c28c2bdbcd655e99526c86a41dc83834283","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/30b7c63af50fe1464e7582a37de1ca4bd030ecc1","name":"https://git.kernel.org/stable/c/30b7c63af50fe1464e7582a37de1ca4bd030ecc1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9c48a53685040bb0de45a640b34055cbbfc69d4f","name":"https://git.kernel.org/stable/c/9c48a53685040bb0de45a640b34055cbbfc69d4f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/97edf3fd9a46ea89a167966991c0449cfa07b36f","name":"https://git.kernel.org/stable/c/97edf3fd9a46ea89a167966991c0449cfa07b36f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/36cb00c33bd83e7ce31b5a9f1f7c70db0cb7776c","name":"https://git.kernel.org/stable/c/36cb00c33bd83e7ce31b5a9f1f7c70db0cb7776c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7afb8db47c4f107bce89cfe5115fb31ba7c94665","name":"https://git.kernel.org/stable/c/7afb8db47c4f107bce89cfe5115fb31ba7c94665","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2b5622cf4ee218b6f98d31dbf3fbd44b9b6bd675","name":"https://git.kernel.org/stable/c/2b5622cf4ee218b6f98d31dbf3fbd44b9b6bd675","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90126","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90126","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a39a6405d5f949bc651694028a55d74c514ef1f9 2b5622cf4ee218b6f98d31dbf3fbd44b9b6bd675 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a39a6405d5f949bc651694028a55d74c514ef1f9 36cb00c33bd83e7ce31b5a9f1f7c70db0cb7776c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a39a6405d5f949bc651694028a55d74c514ef1f9 30b7c63af50fe1464e7582a37de1ca4bd030ecc1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a39a6405d5f949bc651694028a55d74c514ef1f9 7afb8db47c4f107bce89cfe5115fb31ba7c94665 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a39a6405d5f949bc651694028a55d74c514ef1f9 97edf3fd9a46ea89a167966991c0449cfa07b36f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a39a6405d5f949bc651694028a55d74c514ef1f9 08a59c28c2bdbcd655e99526c86a41dc83834283 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a39a6405d5f949bc651694028a55d74c514ef1f9 6218c0533a72235ec9c5f41b812c63d963bd4a3e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a39a6405d5f949bc651694028a55d74c514ef1f9 9c48a53685040bb0de45a640b34055cbbfc69d4f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.4","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.4 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.270 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.221 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.188 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.157 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/rtc/rtc-pcf8563.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2b5622cf4ee218b6f98d31dbf3fbd44b9b6bd675","status":"affected","version":"a39a6405d5f949bc651694028a55d74c514ef1f9","versionType":"git"},{"lessThan":"36cb00c33bd83e7ce31b5a9f1f7c70db0cb7776c","status":"affected","version":"a39a6405d5f949bc651694028a55d74c514ef1f9","versionType":"git"},{"lessThan":"30b7c63af50fe1464e7582a37de1ca4bd030ecc1","status":"affected","version":"a39a6405d5f949bc651694028a55d74c514ef1f9","versionType":"git"},{"lessThan":"7afb8db47c4f107bce89cfe5115fb31ba7c94665","status":"affected","version":"a39a6405d5f949bc651694028a55d74c514ef1f9","versionType":"git"},{"lessThan":"97edf3fd9a46ea89a167966991c0449cfa07b36f","status":"affected","version":"a39a6405d5f949bc651694028a55d74c514ef1f9","versionType":"git"},{"lessThan":"08a59c28c2bdbcd655e99526c86a41dc83834283","status":"affected","version":"a39a6405d5f949bc651694028a55d74c514ef1f9","versionType":"git"},{"lessThan":"6218c0533a72235ec9c5f41b812c63d963bd4a3e","status":"affected","version":"a39a6405d5f949bc651694028a55d74c514ef1f9","versionType":"git"},{"lessThan":"9c48a53685040bb0de45a640b34055cbbfc69d4f","status":"affected","version":"a39a6405d5f949bc651694028a55d74c514ef1f9","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/rtc/rtc-pcf8563.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.4"},{"lessThan":"4.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.270","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.221","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.188","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.270","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"4.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: pcf8563: fix clock provider leak on unbind\n\npcf8563_clkout_register_clk() registers the CLKOUT clock provider with\nof_clk_add_provider(), but nothing ever unwinds it: there is no\nof_clk_del_provider() call and the driver has no remove callback. Each\nof_clk_add_provider() allocates a struct of_clk_provider, takes a\nreference on the OF node and adds an entry to the global of_clk_providers\nlist, none of which is released when the device is unbound. Every\nbind/unbind (or module reload) therefore leaks a provider structure and\nan of_node reference.\n\nThe clock itself is already device-managed (devm_clk_register()); only\nthe provider registration was not. Use devm_of_clk_add_hw_provider() so\nthe provider is removed automatically on unbind. Tie it to the parent\ni2c device, whose OF node carries the #clock-cells and clock-output-names\nproperties (the RTC class device has no OF node of its own)."}],"providerMetadata":{"dateUpdated":"2026-10-19T08:58:24.498Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/2b5622cf4ee218b6f98d31dbf3fbd44b9b6bd675"},{"url":"https://git.kernel.org/stable/c/36cb00c33bd83e7ce31b5a9f1f7c70db0cb7776c"},{"url":"https://git.kernel.org/stable/c/30b7c63af50fe1464e7582a37de1ca4bd030ecc1"},{"url":"https://git.kernel.org/stable/c/7afb8db47c4f107bce89cfe5115fb31ba7c94665"},{"url":"https://git.kernel.org/stable/c/97edf3fd9a46ea89a167966991c0449cfa07b36f"},{"url":"https://git.kernel.org/stable/c/08a59c28c2bdbcd655e99526c86a41dc83834283"},{"url":"https://git.kernel.org/stable/c/6218c0533a72235ec9c5f41b812c63d963bd4a3e"},{"url":"https://git.kernel.org/stable/c/9c48a53685040bb0de45a640b34055cbbfc69d4f"}],"title":"rtc: pcf8563: fix clock provider leak on unbind","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-90126","datePublished":"2026-09-17T16:06:28.568Z","dateReserved":"2026-09-11T19:38:34.788Z","dateUpdated":"2026-10-19T08:58:24.498Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:04","lastModifiedDate":"2026-10-19 09:19:02","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"90126","Ordinal":"1","Title":"rtc: pcf8563: fix clock provider leak on unbind","CVE":"CVE-2026-90126","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"90126","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: pcf8563: fix clock provider leak on unbind\n\npcf8563_clkout_register_clk() registers the CLKOUT clock provider with\nof_clk_add_provider(), but nothing ever unwinds it: there is no\nof_clk_del_provider() call and the driver has no remove callback. Each\nof_clk_add_provider() allocates a struct of_clk_provider, takes a\nreference on the OF node and adds an entry to the global of_clk_providers\nlist, none of which is released when the device is unbound. Every\nbind/unbind (or module reload) therefore leaks a provider structure and\nan of_node reference.\n\nThe clock itself is already device-managed (devm_clk_register()); only\nthe provider registration was not. Use devm_of_clk_add_hw_provider() so\nthe provider is removed automatically on unbind. Tie it to the parent\ni2c device, whose OF node carries the #clock-cells and clock-output-names\nproperties (the RTC class device has no OF node of its own).","Type":"Description","Title":"rtc: pcf8563: fix clock provider leak on unbind"}]}}}