CVE-2026-23350
HighSummary
W jądrze systemu Linux rozwiązano podatność związaną z inicjalizacją kolejki w module drm/xe. Brak odpowiedniego wywołania funkcji fini po nieudanej inicjalizacji kolejki może prowadzić do usunięcia kolejki z listy GuC, co skutkuje uszkodzeniem i odniesieniem do nieprawidłowej pamięci.
Risk Assessment
Organizacja może napotkać problemy z stabilnością systemu oraz potencjalne awarie związane z nieprawidłowym zarządzaniem pamięcią, co może prowadzić do utraty danych lub naruszenia bezpieczeństwa.
Recommendation
Zaleca się aktualizację jądra systemu Linux do najnowszej wersji, aby usunąć tę podatność oraz zapewnić prawidłowe zarządzanie kolejkami w module drm/xe.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: drm/xe/queue: Call fini on exec queue creation fail Every call to queue init should have a corresponding fini call. Skipping this would mean skipping removal of the queue from GuC list (which is part of guc_id allocation). A damaged queue stored in exec_queue_lookup list would lead to invalid memory reference, sooner or later. Call fini to free guc_id. This must be done before any internal LRCs are freed. Since the finalization with this extra call became very similar to __xe_exec_queue_fini(), reuse that. To make this reuse possible, alter xe_lrc_put() so it can survive NULL parameters, like other similar functions. v2: Reuse _xe_exec_queue_fini(). Make xe_lrc_put() aware of NULLs. (cherry picked from commit 393e5fea6f7d7054abc2c3d97a4cfe8306cd6079)
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

