Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables – Use a timestamp to check for set element timeout. A timestamp field was added at the beginning of the transaction; it is stored in the nftablespernetns area. The .insert, .deactivate, and syncgc functions...

Astra Linux – Vulnerability in Linux 5.10

Due to a vulnerability in the iouring subsystem, it is possible for kernel memory information to be leaked to the user process. timensinstall calls currentissinglethreaded to determine whether the current process is single-threaded. However, this call does not take into account iouring’s ioworker...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fixed a race condition between namespace cleanup and garbage collection for the list:set type. Lion Ackermann reported that there is a race condition between namespace cleanup in ipset and garbage collection of...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: netns: Ensure that getnetns handles zero refcount nets properly. Syzkaller encountered a warning: refcountt: Addition on 0; use-after-free. WARNING: CPU: 3 PID: 7890 at lib/refcount.c:25 refcountwarnsaturate+0xdf/0x1d0 Linked...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: nfs: Handling of the error from rpcprocregister in nfsnetinit. syzkaller reported a warning 0 that was triggered while destroying immature netnames. The rpcprocregister function was called in initnfsfs, but its error has been...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: nvme: fixed the SRCU protection for the nvmenshead list The process of walking the nvmenshead siblings list is protected by the head’s srcu in nvmensheadsubmitbio, but not in nvmempathrevalidatePaths. Removing namespaces from...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: - In the net subsystem, do not delay the execution of dstentriesadd within dstrelease. - dstentriesadd uses data per-core that might be freed during the dismantling of ip6routenetexit, by calling dstentriesdestroy. Before...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/smc: Fixed a possible leak of the pernet namespace in smcinit. In smcinit, registerpernetsubsys&smcnetstatops is called without any error handling. If this call fails, the registration of &smcnetops will not be reversed. And ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: sctp: sysctl: rtomin/max: Avoid using current-nsproxy. As mentioned in a previous commit of this series, using the net structure via current is not recommended for various reasons: - Inconsistency: Getting information from the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: tipc: Fixed a use-after-free in tipcconnclose. syzbot reported a null-ptr-deref in tipcconnclose during netns dismantling. 0 The function tipctopsrvstop iterates through tipcnetnet-topsrv-connidr and calls tipcconnclose for ea...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Do not dereference the ACPI root object handle Since the commit referenced in the Fixes section below the VMBus client driver attempts to traverse the ACPI namespace from the VMBus ACPI device to the ACPI...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ax25: The unshare skbs operation was performed correctly in ax25kissrcv. Bernard Pidoux reported a regression that appeared to be caused by the commit c353e8983e0d “net: introduce per netns packet chains”. This commit introduced ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: AppArmor: A memory leak was fixed in the verifyheader function. The function sets ns = NULL on every call, causing a memory leak in the namespace allocated during previous iterations when multiple profiles are unpacked. This also...

Astra Linux – Vulnerability in Linux

A heap out-of-bounds write that affects Linux since v2.6.19-rc1 was discovered in net/netfilter/xtables.c. This vulnerability allows an attacker to gain privileges or cause a Denial-of-Service attack through heap memory corruption by manipulating the user name space...

kernel: rtnetlink: add missing netlink_ns_capable() check for peer netns

A flaw was found in the Linux kernel's rtnetlink component. An unprivileged local user, leveraging a user namespace, can exploit a missing CAPNETADMIN capability check in the rtnlnewlink function. This allows the user to create paired network devices in arbitrary network namespaces, including the...

Linux Distros Unpatched Vulnerability : CVE-2026-89766

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - pidfd: hold execupdatelock around namespace ioctl The PIDFDGETNAMESPACE ioctls in pidfdioctl perform a filesystem credentials ptrace access check before handing...

Linux Distros Unpatched Vulnerability : CVE-2026-80983

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/smc: fix socket refcount leak in smcswitchconns smcswitchconns takes a reference on the SMC socket before dropping lgr-connslock, so the connection stays...

Linux Distros Unpatched Vulnerability : CVE-2026-89527

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - svcrdma: Use svcxprtput to free listener on create failure svcrdmacreate calls kfreecmaxprt when svcrdmacreatelistenid fails. svcxprtinit has already acquired ...

Linux Distros Unpatched Vulnerability : CVE-2026-80929

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - sysctl: move the cadpid entry from pidtable to kernreboottable cadpid is global, and killcadpid is only used in the root namespace. However, due to...

CVE-2026-89715

A flaw was found in the Linux kernel's NFS/localio component. A race condition during file handling can lead to a reference leak, where system resources are not properly released. This continuous accumulation of unreleased references can exhaust available resources, preventing network namespace...