UBUNTU-CVE-2022-49901

In the Linux kernel, the following vulnerability has been resolved: blk-mq: Fix kmemleak in blkmqinitallocatedqueue There is a kmemleak caused by modprobe nullblk.ko unreferenced object 0xffff8881acb1f000 size 1024: comm "modprobe", pid 836, jiffies 4294971190 age 27.068s hex dump first 32 bytes:...

CVE-2022-49901 blk-mq: Fix kmemleak in blk_mq_init_allocated_queue

In the Linux kernel, the following vulnerability has been resolved: blk-mq: Fix kmemleak in blkmqinitallocatedqueue There is a kmemleak caused by modprobe nullblk.ko unreferenced object 0xffff8881acb1f000 size 1024: comm "modprobe", pid 836, jiffies 4294971190 age 27.068s hex dump first 32 bytes:...

UBUNTU-CVE-2022-49377

In the Linux kernel, the following vulnerability has been resolved: blk-mq: don't touch -tagset in blkmqgetsqhctx blkmqrunhwqueues could be run when there isn't queued request and after queue is cleaned up, at that time tagset is freed, because tagset lifetime is covered by driver, and often free...

CVE-2022-49720 block: Fix handling of offline queues in blk_mq_alloc_request_hctx()

In the Linux kernel, the following vulnerability has been resolved: block: Fix handling of offline queues in blkmqallocrequesthctx This patch prevents that test nvme/004 triggers the following: UBSAN: array-index-out-of-bounds in block/blk-mq.h:135:9 index 512 is out of range for type 'long...

CVE-2024-50081 blk-mq: setup queue ->tag_set before initializing hctx

In the Linux kernel, the following vulnerability has been resolved: blk-mq: setup queue -tagset before initializing hctx Commit 7b815817aa58 "blk-mq: add helper for checking if one CPU is mapped to specified hctx" needs to check queue mapping via tag set in hctx's cpuhp handler. However, q-tagset...

CVE-2021-47498

In the Linux kernel, the following vulnerability has been resolved: dm rq: don't queue request to blk-mq during DM suspend DM uses blk-mq's quiesce/unquiesce to stop/start device mapper queue. But blk-mq's unquiesce may come from outside events, such as elevator switch, updating nrrequests or...

UBUNTU-CVE-2024-26742

In the Linux kernel, the following vulnerability has been resolved: scsi: smartpqi: Fix disablemanagedinterrupts Correct blk-mq registration issue with module parameter disablemanagedinterrupts enabled. When we turn off the default PCIIRQAFFINITY flag, the driver needs to register with blk-mq usi...

DEBIAN-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...

UBUNTU-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...

PT-2024-7282

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.18.0-372.88.1.el8 6 smartpqi test.x86 64 Description: The vulnerability is related to a blk-mq registration issue in the Linux kernel's scsi: smartpqi driver. When the default PCI IRQ AFFINITY flag is turned...

kernel: blk-mq: fix null pointer dereference in blk_mq_clear_rq_mapping()

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix null pointer dereference in blkmqclearrqmapping Our syzkaller report a null pointer dereference, root cause is following: blkmqallocmapandrqs set-tagshctxidx = blkmqallocmapandrqs blkmqallocmapandrqs blkmqallocrqs //...