Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mptcp: Use the appropriate destructor for IPv6. Previously, only the destructor from the TCP request sock in IPv4 was called, even if the subflow was IPv6. It is important to use the correct destructor to avoid memory leaks with...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fixed soft lockups in fib6selectpath under high next hop changes. Soft lockups were observed on a cluster of Linux-based edge routers located in a highly dynamic environment. Using the bird service, these routers continuous...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure context reset on disconnect After the committed code below, if the MPC subflow is already in the TCPCLOSE status or has fallen back to TCP at the mptcpdisconnect time, mptcpdofastclose skips setting the sendfastclos...

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

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: The possibility of a Use-after-Free condition arises when selecting an endpoint. The functions selectlocaladdress and selectsignaladdress both select an endpoint from a list within the RCU-protected section. However,...

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: mptcp: fixed a NULL pointer in canacceptnewsubflow. When testing the valkey benchmark tool with MPTCP, the kernel panics in mptcpcanacceptnewsubflow because subflowreq-msk is NULL. Call trace: mptcpcanacceptnewsubflow...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: TCP: cdg: allows tcpcdgrelease to be called multiple times. It seems that MPTCP can call tcpdisconnect on a flow that is already disconnected. This is generally fine, unless the current congestion control mechanism is CDG, as ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: mptcp: error out earlier on disconnect Eric reported a division by zero error in the MPTCP protocol: Oops: divide error: 0000 1 PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 6094 Comm: syz-executor317 Not tainted...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: mptcp: fixed TCP options overflow. Syzbot reported the following errors: Oops: general protection fault, likely due to a non-canonical address 0xdffffc0000000001: 0000 1 PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range...

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: TCP: Fixed corruption in MPTCP’s DSS due to large PMTU transmissions. Syzkaller was able to trigger DSS corruption: - TCP: requestsocksubflowv4: Possible SYN flooding on port :::20002. Sending cookies. ------------ Cut here...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dm: A race condition in retrievedeps has been fixed. There is a race condition in the multipath target when retrievedeps interacts with multipathmessage. This race condition occurs when multipathmessage calls dmgetdevice and...

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: mptcp: always handle address removal under msk socket lock Syzkaller reported a lockdep splat in the PM control path: WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 sockownedbyme include/net/sock.h:1711 inline WARNING:...

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

In the Linux kernel, the following vulnerabilities have been resolved: net/ipv6: avoided a possible Use After Free UAF in ip6routempathnotify syzbot discovered another use-after-free in ip6routempath Notify. 1 The commit f7225172f25a “net/ipv6: prevent use after free in ip6routempath Notify” fail...

Astra Linux – Vulnerability in multipath-tools

Multipath-tools versions 0.7.7 through 0.9.x, prior to 0.9.2, allowed local users to obtain root access. This vulnerability was exploited in conjunction with CVE-2022-41974. Local users who had access to /dev/shm could modify symlinks within multipathd due to incorrect symlink handling. This coul...

Astra Linux – Vulnerability in multipath-tools

In versions of multipath-tools from 0.7.0 to 0.9.x, up to 0.9.2, local users could obtain root access, either alone or in conjunction with CVE-2022-41973. Local users who had access to write to UNIX domain sockets could bypass access controls and manipulate the multipath setup. This could result ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mptcp: Race conditions between subflow failures and additional subflow creations. We have race conditions similar to those addressed by the previous patch, between subflow failures and additional subflow creations. However, these...

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 – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix double-free on socket dismantle when MPTCP server accepts an incoming connection, it clones its listener socket. However, the pointer to 'inetopt' for the new socket has the same value as the original one: as a...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: nvme-multipath: deferring partition scanning. We need to prevent the partition scanning from occurring within the controller’s scanwork context. If a path error occurs here, I/O will wait until a path becomes available or all pat...

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: mptcp: handles DDS corruption consistently. The buggy peer implementation can send corrupted DSS options, consistently causing several warnings in the data path. Use DEBUGNET assertions to avoid errors on some builds and to handl...

Linux Distros Unpatched Vulnerability : CVE-2026-89555

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mpls: reload header after pskbmaypull mplsselectmultipath calls mplsmultipathhash to choose a nexthop when an MPLS route has multiple nexthops. While walking th...