CVE-2025-22125

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> md/raid1,raid10: don&amp;#39;t ignore IO flags<br /> <br /> If blk-wbt is enabled by default, it&amp;#39;s found that raid write performance<br /> is quite bad because all IO are throttled by wbt of underlying disks,<br /> due to flag REQ_IDLE is ignored. And turns out this behaviour exist since<br /> blk-wbt is introduced.<br /> <br /> Other than REQ_IDLE, other flags should not be ignored as well, for<br /> example REQ_META can be set for filesystems, clearing it can cause priority<br /> reverse problems; And REQ_NOWAIT should not be cleared as well, because<br /> io will wait instead of failing directly in underlying disks.<br /> <br /> Fix those problems by keep IO flags from master bio.<br /> <br /> Fises: f51d46d0e7cb ("md: add support for REQ_NOWAIT")