{"id":"CVE-2026-31572","title":"i2c: designware: amdisp: Fix resume-probe race condition issue","summary":"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: Co…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= d6263c468a761cd4c89887073614394ac48441e1 < 83bcea9da91965484df64a6492b89e65d41ab31c","Linux >= d6263c468a761cd4c89887073614394ac48441e1 < e81f0341754c309e33babea2821eda8f98f0b44c","Linux >= d6263c468a761cd4c89887073614394ac48441e1 < e2f1ada8e089dd5a331bcd8b88125ae2af8d188f","Linux 6.16"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T21:39:22.654738Z"},"published":"2026-04-24","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:45:08.479Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-31572","references":[{"url":"https://git.kernel.org/stable/c/83bcea9da91965484df64a6492b89e65d41ab31c"},{"url":"https://git.kernel.org/stable/c/e81f0341754c309e33babea2821eda8f98f0b44c"},{"url":"https://git.kernel.org/stable/c/e2f1ada8e089dd5a331bcd8b88125ae2af8d188f"}],"tags":["cve.org"],"epss":0.00088,"epssPercentile":0.00355,"ingestedAt":"2026-11-05T23:41:31.964Z","slug":"CVE-2026-31572","body":"## Overview\n\nIn 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\n\n## Affected\n\n- `Linux >= d6263c468a761cd4c89887073614394ac48441e1 < 83bcea9da91965484df64a6492b89e65d41ab31c`\n- `Linux >= d6263c468a761cd4c89887073614394ac48441e1 < e81f0341754c309e33babea2821eda8f98f0b44c`\n- `Linux >= d6263c468a761cd4c89887073614394ac48441e1 < e2f1ada8e089dd5a331bcd8b88125ae2af8d188f`\n- `Linux 6.16`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}