CVE-2024-26671

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix IO hang from sbitmap wakeup race In blkmqmarktagwait, addwaitqueue may be re-ordered with the following blkmqgetdrivertag in case of getting driver tag failure. Then in sbitmapqueuewakeup, waitqueueactive may not...

CVE-2024-26671 blk-mq: fix IO hang from sbitmap wakeup race

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix IO hang from sbitmap wakeup race In blkmqmarktagwait, addwaitqueue may be re-ordered with the following blkmqgetdrivertag in case of getting driver tag failure. Then in sbitmapqueuewakeup, waitqueueactive may not...

CVE-2024-26671 blk-mq: fix IO hang from sbitmap wakeup race

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix IO hang from sbitmap wakeup race In blkmqmarktagwait, addwaitqueue may be re-ordered with the following blkmqgetdrivertag in case of getting driver tag failure. Then in sbitmapqueuewakeup, waitqueueactive may not...

CVE-2024-26671

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix IO hang from sbitmap wakeup race In blkmqmarktagwait, addwaitqueue may be re-ordered with the following blkmqgetdrivertag in case of getting driver tag failure. Then in sbitmapqueuewakeup, waitqueueactive may not...

CVE-2024-26671

CVE-2024-26671 describes a Linux kernel IO hang caused by blk-mq wakeup/race where __add_wait_queue() can be reordered with blk_mq_get_driver_tag() on tag failure, leading __sbitmap_queue_wake_up() to miss the waiter and not wake up, while blk_mq_mark_tag_wait() cannot obtain a driver tag. The fi...