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The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process’s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11","Type":"Description","Title":null},{"CveYear":"2021","CveId":"21781","Ordinal":"2","NoteData":"2021-08-18","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"21781","Ordinal":"3","NoteData":"2021-08-18","Type":"Other","Title":"Modified"}]}}}