{"apiVersion":"1.0","identifier":"CVE-2026-74405","description":"In the Linux kernel, the following vulnerability has been resolved: OPP: Fix race between OPP addition and lookup A race exists between dev_pm_opp_add_dynamic() and dev_pm_opp_find_freq_exact(): CPU0 (add) CPU1 (lookup) ------------------------------- ------------------------------ _opp_add() mutex_lock() list_add(&new_opp->node, head) mutex_unlock() _opp_table_find_key() mutex_lock() dev_pm_opp_get(opp) kref_get() mutex_unlock() kref_init(&new_opp->kref) dev_pm_opp_put() kref_put_mutex() The newly added OPP is inserted into the list before its kref is initialized. A concurrent lookup can find this OPP and increment its reference count while it is still uninitialized, leading to refcount corruption and a potential premature free. Fix this by initializing ->kref and ->opp_table before making the OPP visible via list_add(). This ensures any concurrent lookup observes a fully initialized object. [ Viresh: Updated commit log ]","publishedAt":"2026-08-15T06:22:42","lastModifiedAt":"2026-08-17T06:19:35","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74405","cvssScore":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00128,"riskScore":0.79,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74405","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74405","en":"https://www.redsauce.net/en/cves/CVE-2026-74405","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74405","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74405","de":"https://www.redsauce.net/de/cves/CVE-2026-74405","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74405","el":"https://www.redsauce.net/el/cves/CVE-2026-74405"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74405"}}