The vulnerability of the nr_requests() function in the Linux operating system’s kernel allows a hacker to trigger a service failure.

The vulnerability of the nrrequests function in the Linux operating system’s kernel is related to mutual blocking of execution threads. Exploiting this vulnerability can allow an attacker to cause a service failure...

UBUNTU-CVE-2025-40146

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix potential deadlock while nrrequests grown Allocate and free schedtags while queue is freezed can deadlock1, this is a long term problem, hence allocate memory before freezing queue and free memory after queue is...

CVE-2025-40146 blk-mq: fix potential deadlock while nr_requests grown

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix potential deadlock while nrrequests grown Allocate and free schedtags while queue is freezed can deadlock1, this is a long term problem, hence allocate memory before freezing queue and free memory after queue is...

CVE-2025-40146

The CVE-2025-40146 entry refers to a Linux kernel issue in the blk-mq subsystem where deadlock can occur as nr_requests grow. The root cause is described as a conflict between allocating/freeing sched_tags while the I/O queue is frozen, which can lead to a deadlock. The published fix involves all...

DEBIAN-CVE-2025-39999

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix blkmqtags double free while nrrequests grown In the case user trigger tags grow by queue sysfs attribute nrrequests, hctx-schedtags will be freed directly and replaced with a new allocated tags, see blkmqtagupdatedept...

CVE-2025-39999 blk-mq: fix blk_mq_tags double free while nr_requests grown

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix blkmqtags double free while nrrequests grown In the case user trigger tags grow by queue sysfs attribute nrrequests, hctx-schedtags will be freed directly and replaced with a new allocated tags, see blkmqtagupdatedept...

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...

Moderate: kernel security and bugfix update

2.6.9-55.0.6.0.1 - fix entropy flag in bnx2 driver to generate entropy pool John Sobecki orabug 5931647 - fix for nfs open call taking longer issue Chuck Lever orabug 5580407 bz 219412 - fix enomem due to larger mtu size page alloc Zach Brown orabug 5486128 - fix percpu api bugon with rds Zach...