从这个网页截图中可以获取到以下关于漏洞的关键信息： 漏洞描述： - ublk: fix race between io_uring_cmd_complete_in_task and ublk_cancel_cmd - ublk_cancel_cmd() calls cmd_done() to complete uring_cmd, but we may have scheduled task work via io_uring_cmd_complete_in_task() for dispatching request, then kernel crash can be triggered. 修复措施： - Fix it by not trying to canceling the command if ublk block request is started. 相关提交： - Fixes: 216c8f5ef0f2 ("ublk: replace monitor with cancelable uring_cmd") - Reported-by: Jared Holzman - Tested-by: Jared Holzman - Closes: https://lore.kernel.org/linux-block/d2179120-171b-47ba-b664-23242981ef19@nvidia.com/ 代码变更： - 文件：drivers/block/ublk_drv.c - 变更：1文件，21插入，6删除 提交信息： - Author: Ming Lei - Committer: Jens Axboe - Commit ID: f40139fde5278d81af3227444fd6e76a76b9506d - Date: 2025-04-25 09:37:40 +0800 这些信息表明这是一个与Linux内核中的ublk模块相关的竞态条件漏洞，可能导致内核崩溃。通过避免在特定条件下取消命令来修复该漏洞。