DEBIAN-CVE-2026-78408

The nsenter --join-cgroup option opens the target cgroup.procs file as root and leaves that file descriptor open across later namespace and credential changes and across execve. Because the kernel checks later cgroup migrations using the credentials from the original open, a program run in an...

EUVD-2026-70105

The nsenter --join-cgroup option opens the target cgroup.procs file as root and leaves that file descriptor open across later namespace and credential changes and across execve. Because the kernel checks later cgroup migrations using the credentials from the original open, a program run in an...

CVE-2026-78408

The nsenter --join-cgroup option opens the target cgroup.procs file as root and leaves that file descriptor open across later namespace and credential changes and across execve. Because the kernel checks later cgroup migrations using the credentials from the original open, a program run in an...

CVE-2026-78408 Util-linux: util-linux: nsenter --join-cgroup leaks root cgroup migration authority

The nsenter --join-cgroup option opens the target cgroup.procs file as root and leaves that file descriptor open across later namespace and credential changes and across execve. Because the kernel checks later cgroup migrations using the credentials from the original open, a program run in an...

CVE-2026-78408

The nsenter --join-cgroup option opens the target cgroup.procs file as root and leaves that file descriptor open across later namespace and credential changes and across execve. Because the kernel checks later cgroup migrations using the credentials from the original open, a program run in an...

CVE-2026-78408

util-linux nsenter --join-cgroup opens the target cgroup.procs file as root and leaves the file descriptor open across subsequent namespace, credential, and execve() transitions. Because the kernel evaluates later cgroup migrations against the credentials of the original open, a process in an att...

CVE-2026-78408

The nsenter --join-cgroup option opens the target cgroup.procs file as root and leaves that file descriptor open across later namespace and credential changes and across execve. Because the kernel checks later cgroup migrations using the credentials from the original open, a program run in an...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098804)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098804 advisory. In the Linux kernel, the following vulnerability has been resolved: mm: blk-cgroup: fix use-after-free in cgwbreleaseworkfn cgwbreleaseworkfn calls cssputwb-blkcgcss...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098918)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098918 advisory. In the Linux kernel, the following vulnerability has been resolved: writeback: fix race between cgroupwritebackumount and inodeswitchwbs When a container exits, the...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098765)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098765 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: do not strictly require dirty metadata threshold for metadata writepages BUG There is an...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098969)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098969 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf: fix end-of-list detection in cgroupstoragegetnextkey listnextentry never returns NULL -- whe...

CVE-2026-74594

A flaw was found in the Linux kernel's Pressure Stall Information PSI subsystem. A race condition exists where a timer rtpolltimer can be re-armed after it has been deleted during the destruction of a control group cgroup. This can lead to the timer function executing on freed memory, potentially...

CVE-2026-74593

A flaw was found in the Linux kernel's schedext component. An incorrect locking order within the scxcgrouplock function can lead to a deadlock. This occurs when certain cgroup operations, such as enabling/disabling scx or removing a cgroup, happen concurrently with cpu.weight writes. A local...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: cgroup: Use separate source/destination nodes when preloading csssets for migration. Each cssset is associated with its corresponding tasks. When moving tasks between csssets during a migration, we need to keep the source and...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsocket: The WARNONONCE message was removed when the maximum cgroup level was set. By default, the maximum depth of a cgroup is INTMAX. There’s a setting that allows restricting this maximum depth to a more reasonabl...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ovl: fixed the warning in ovlcreatereal Syzbot triggered the following warning in ovlworkdircreate - ovlcreatereal: if !err && WARNON!newdentry-d inode The reason is that the cgroup2 filesystem returns from mkdir without...

Astra Linux – Vulnerability in Linux, Linux 5.10

A vulnerability was discovered in the cgroupreleaseagentwrite function of the Linux kernel, within the kernel/cgroup/cgroup-v1.c file. Under certain circumstances, this flaw allows the use of the cgroups v1 releaseagent feature to escalate privileges and bypass namespace isolation unexpectedly...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: A missing hugetlblock issue has been fixed for resv uncharge. There is a recent report regarding UFFDIOCOPY over hugetlb: https://loreKernel.org/all/[email protected]/ Line 350:...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: sched/psi: The use of kernfs polling functions for PSI trigger polling was incorrect. Destroying the psitriggerdestroy in cgroupfilerelease causes a Use-After-Free UAF issue when a cgroup is removed from a polling process. This...

Astra Linux – Vulnerability in libcgroup

The vulnerability of the cgroupaddcontroller function in the wrapper.c component of Libcgroup resource management tools is related to the use of memory after it is freed. Exploiting this vulnerability allows an attacker to cause a service failure...