{"id":"CVE-2026-31572","summary":"i2c: designware: amdisp: Fix resume-probe race condition issue","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: designware: amdisp: Fix resume-probe race condition issue\n\nIdentified resume-probe race condition in kernel v7.0 with the commit\n38fa29b01a6a (\"i2c: designware: Combine the init functions\"),but this\nissue existed from the beginning though not detected.\n\nThe amdisp i2c device requires ISP to be in power-on state for probe\nto succeed. To meet this requirement, this device is added to genpd\nto control ISP power using runtime PM. The pm_runtime_get_sync() called\nbefore i2c_dw_probe() triggers PM resume, which powers on ISP and also\ninvokes the amdisp i2c runtime resume before the probe completes resulting\nin this race condition and a NULL dereferencing issue in v7.0\n\nFix this race condition by using the genpd APIs directly during probe:\n  - Call dev_pm_genpd_resume() to Power ON ISP before probe\n  - Call dev_pm_genpd_suspend() to Power OFF ISP after probe\n  - Set the device to suspended state with pm_runtime_set_suspended()\n  - Enable runtime PM only after the device is fully initialized","modified":"2026-07-08T07:32:31.085556571Z","published":"2026-04-24T14:35:50.736Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31572.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/83bcea9da91965484df64a6492b89e65d41ab31c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e2f1ada8e089dd5a331bcd8b88125ae2af8d188f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e81f0341754c309e33babea2821eda8f98f0b44c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31572.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31572"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d6263c468a761cd4c89887073614394ac48441e1"},{"fixed":"83bcea9da91965484df64a6492b89e65d41ab31c"},{"fixed":"e81f0341754c309e33babea2821eda8f98f0b44c"},{"fixed":"e2f1ada8e089dd5a331bcd8b88125ae2af8d188f"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31572.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.16.0"},{"fixed":"6.18.21"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31572.json"}}],"schema_version":"1.7.5"}