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...

Design/Logic Flaw

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...

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...

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...

CVE-2024-0443 Kernel: blkio memory leakage due to blkcg and some blkgs are not freed after they are made offline.

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...

CVE-2024-0443

CVE-2024-0443 : Linux kernel flaw in the blkgs destruction path (block/blk-cgroup.c) causes a cgroup blkio memory leak during destruction. The leak stems from cgroup_rstat_flush() being invoked only from css_release_work_fn() when the blkcg refcount reaches 0, creating a circular dependency that ...

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...

NewStart CGSL MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2023-0058)

The remote NewStart CGSL host, running version MAIN 5.04, has kernel packages installed that are affected by multiple vulnerabilities: - A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root privileges from unprivileged processes. The highest threat...

kernel: blkio memory leakage due to blkcg and some blkgs are not freed after they are made offline.

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...

runc: Rootless runc makes `/sys/fs/cgroup` writable

A flaw was found in runc, where it is vulnerable to a denial of service caused by improper access control in the /sys/fs/cgroup endpoint. This flaw allows a local authenticated attacker to cause a denial of service...

kernel: memcg: fix possible use-after-free in memcg_write_event_control()

A flaw was found in the Linux kernel's memory cgroup memcg component. A missing file type check in the memcgwriteeventcontrol function allows arbitrary files to bypass validation. This can lead to a use-after-free condition when dname and parent accesses race against file renames and removals. A...

kernel: blkio memory leakage due to blkcg and some blkgs are not freed after they are made offline.

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...

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...

kernel: cgroup: Use separate src/dst nodes when preloading css_sets for migration

In the Linux kernel, the following vulnerability has been resolved: cgroup: Use separate src/dst nodes when preloading csssets for migration Each cset cssset is pinned by its tasks. When we're moving tasks around across csets for a migration, we need to hold the source and destination csets to...

runc: Rootless runc makes `/sys/fs/cgroup` writable

A flaw was found in runc, where it is vulnerable to a denial of service caused by improper access control in the /sys/fs/cgroup endpoint. This flaw allows a local authenticated attacker to cause a denial of service...

NewStart CGSL MAIN 6.06 : containerd.io Multiple Vulnerabilities (NS-SA-2023-0139)

The remote NewStart CGSL host, running version MAIN 6.06, has containerd.io packages installed that are affected by multiple vulnerabilities: - runc is a CLI tool for spawning and running containers according to the OCI specification. In affected versions it was found that rootless runc makes...

kernel: memcg: fix possible use-after-free in memcg_write_event_control()

A flaw was found in the Linux kernel's memory cgroup memcg component. A missing file type check in the memcgwriteeventcontrol function allows arbitrary files to bypass validation. This can lead to a use-after-free condition when dname and parent accesses race against file renames and removals. A...

kernel: blk-cgroup: hold queue_lock when removing blkg->q_node

A locking flaw was found in the Linux kernel's block cgroup subsystem. When removing blkg-qnode from q-blkglist in blkgfreeworkfn, the code fails to hold queuelock. This missing lock allows concurrent access from blkgdestroyall, leading to list corruption and potential hard lockups...

kernel: block, bfq: fix possible uaf for 'bfqq->bic'

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix possible uaf for 'bfqq-bic' Our test report a uaf for 'bfqq-bic' in 5.10: ================================================================== BUG: KASAN: use-after-free in bfqselectqueue+0x378/0xa30 CPU: 6 PID:...