CVE-2026-74405

CVE CVE-2026-74405EUVD EUVD-2026-59552Published 2026-08-15T05:59:14.000ZLast changed 2026-08-17T05:46:47.000ZCVSS 7.8

What the advisory describes

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 ]

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 7.2; patch: 7.1.5; 7034764a1e4a6edbb60914e89aad8384e3fe5d17 <46696b0b2123475d7f95909435c09808fc5ffd23; patch: 6.18.40; patch: 0; 7034764a1e4a6edbb60914e89aad8384e3fe5d17 <bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5; 7034764a1e4a6edbb60914e89aad8384e3fe5d17 <f5e1cc9a284bff2510981643a5bca4bc4c21b81a; 4.11

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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