Answer in brief
CVE-2026-74405 records a High severity (CVSS 7.8) vulnerability in OPP: Fix race between OPP addition and lookup. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7034764a1e4a6edbb60914e89aad8384e3fe5d17 <46696b0b2123475d7f95909435c09808fc5ffd23 || >=7034764a1e4a6edbb60914e89aad8384e3fe5d17 <bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5 || >=7034764a1e4a6edbb60914e89aad8384e3fe5d17 <f5e1cc9a284bff2510981643a5bca4bc4c21b81a | 46696b0b2123475d7f95909435c09808fc5ffd23, bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5, f5e1cc9a284bff2510981643a5bca4bc4c21b81a |
| Linux/Linuxgeneric | 4.11 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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 ]
Quoted source text, attributed separately from HOL analysis.