The vulnerability in the `block/blk-cgroup.c` component of the Linux operating system’s kernel allows for uncontrolled resource consumption. This enables attackers to gain access to confidential data, compromise its integrity, and cause service interruptions.

The vulnerability in the block/blk-cgroup.c component of the Linux operating system’s kernel is related to uncontrolled resource consumption. Exploiting this vulnerability could allow an attacker to access confidential data, compromise its integrity, and even cause service failures...

kernel: blk-cgroup: fix list corruption from reorder of WRITE ->lqueued

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from reorder of WRITE -lqueued blkcgrstatflush can be run anytime, especially when blkcgroupbiostart is being executed. If WRITE of -lqueued is re-ordered with READ of 'bisc-lnode.next' in the loop...

kernel: blk-cgroup: fix list corruption from resetting io stat

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from resetting io stat Since commit 3b8cc6298724 "blk-cgroup: Optimize blkcgrstatflush", each iostat instance is added to blkcg percpu list, so blkcgresetstats can't reset the stat instance by...

kernel: blk-cgroup: fix list corruption from resetting io stat

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from resetting io stat Since commit 3b8cc6298724 "blk-cgroup: Optimize blkcgrstatflush", each iostat instance is added to blkcg percpu list, so blkcgresetstats can't reset the stat instance by...

kernel: blk-cgroup: fix list corruption from reorder of WRITE ->lqueued

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from reorder of WRITE -lqueued blkcgrstatflush can be run anytime, especially when blkcgroupbiostart is being executed. If WRITE of -lqueued is re-ordered with READ of 'bisc-lnode.next' in the loop...

kernel: blk-cgroup: Reinit blkg_iostat_set after clearing in blkcg_reset_stats()

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Reinit blkgiostatset after clearing in blkcgresetstats When blkgalloc is called to allocate a blkcggq structure with the associated blkgiostatset's, there are 2 fields within blkgiostatset that requires proper...

UBUNTU-CVE-2022-48846

In the Linux kernel, the following vulnerability has been resolved: block: release rq qos structures for queue without disk blkcginitqueue may add rq qos structures to request queue, previously blkcleanupqueue calls rqqosexit to release them, but commit 8e141f9eb803 "block: drain file system I/O ...

DEBIAN-CVE-2024-38663

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from resetting io stat Since commit 3b8cc6298724 "blk-cgroup: Optimize blkcgrstatflush", each iostat instance is added to blkcg percpu list, so blkcgresetstats can't reset the stat instance by...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a list corruption in blk-cgroup...

DEBIAN-CVE-2024-36908

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: do not WARN if iocg was already offlined In iocgpaydebt, warn is triggered if 'activelist' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk...

UBUNTU-CVE-2024-36908

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: do not WARN if iocg was already offlined In iocgpaydebt, warn is triggered if 'activelist' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk...

CVE-2021-47379

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix UAF by grabbing blkcg lock before destroying blkg pd KASAN reports a use-after-free report when doing fuzz test: 693354.104835 ================================================================== 693354.105094 BUG:...

DEBIAN-CVE-2024-35974

In the Linux kernel, the following vulnerability has been resolved: block: fix q-blkglist corruption during disk rebind Multiple gendisk instances can allocated/added for single request queue in case of disk rebind. blkg may still stay in q-blkglist when calling blkcginitdisk for rebind, then...

UBUNTU-CVE-2024-35974

In the Linux kernel, the following vulnerability has been resolved: block: fix q-blkglist corruption during disk rebind Multiple gendisk instances can allocated/added for single request queue in case of disk rebind. blkg may still stay in q-blkglist when calling blkcginitdisk for rebind, then...

kernel: blk-cgroup: Reinit blkg_iostat_set after clearing in blkcg_reset_stats()

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Reinit blkgiostatset after clearing in blkcgresetstats When blkgalloc is called to allocate a blkcggq structure with the associated blkgiostatset's, there are 2 fields within blkgiostatset that requires proper...

Vulnerability of the blkcgdestroy_blkgs() function (block/blk-cgroup.c) in the Linux kernel, allowing a malicious actor to cause service failure

The vulnerability of the blkcgdestroyblkgs function block/blk-cgroup.c in the Linux kernel is related to security configuration errors. Exploiting this vulnerability could allow an attacker to cause service failures...

SUSE CVE-2024-0443

A flaw was found in the blkgs destruction path in block/blk-cgroup.c in the Linux kernel, leading to a cgroup blkio memory leakage problem. When a cgroup is being destroyed, cgrouprstatflush is only called at cssreleaseworkfn, which is called when the blkcg reference count reaches 0. This circula...

DEBIAN-CVE-2024-0443

A flaw was found in the blkgs destruction path in block/blk-cgroup.c in the Linux kernel, leading to a cgroup blkio memory leakage problem. When a cgroup is being destroyed, cgrouprstatflush is only called at cssreleaseworkfn, which is called when the blkcg reference count reaches 0. This circula...

UBUNTU-CVE-2024-0443

A flaw was found in the blkgs destruction path in block/blk-cgroup.c in the Linux kernel, leading to a cgroup blkio memory leakage problem. When a cgroup is being destroyed, cgrouprstatflush is only called at cssreleaseworkfn, which is called when the blkcg reference count reaches 0. This circula...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. Linux kernel has a code issue vulnerability that stems from a flaw in the blkgs destruction path in block/blk-cgroup.c, which can be exploited by an attacker to cause a cgroup...