kernel: net/smc: carry oversized SMC-Rv2 LLC messages in the queue entry

A flaw was found in the Linux kernel's Server Message Block over Remote Direct Memory Access SMC-Rv2 protocol implementation. The smcllcrmtdeleterkey and smcllcsaveaddlinkrkeys functions incorrectly handle oversized LLC messages, reading beyond the intended message boundaries. This can lead to th...

kernel: net/smc: carry oversized SMC-Rv2 LLC messages in the queue entry

A flaw was found in the Linux kernel's Server Message Block over Remote Direct Memory Access SMC-Rv2 protocol implementation. The smcllcrmtdeleterkey and smcllcsaveaddlinkrkeys functions incorrectly handle oversized LLC messages, reading beyond the intended message boundaries. This can lead to th...

Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-8634-1)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8634-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

ROS-20261012-73-0163

The vulnerability of the smcsetsockopt function in the net/smc/afsmc.c module of the SMC protocol family implementation in Linux’s kernel is related to synchronization errors. Exploiting this vulnerability can allow an attacker to cause a service failure...

kernel: smc: Fix use-after-free in tcp_write_timer_handler()

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel socket in smccreate, the kernel...

ROS-20261007-73-0032

The vulnerability of the smcrxpipebufrelease function in the net/smc/smcrx.c module of the SMC protocol family implementation in the Linux operating system’s kernel is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the...

CVE-2026-90065

A flaw was found in the Linux kernel's net/smc component. A local unprivileged user can exploit this vulnerability by repeatedly attempting to create IPPROTOSMC sockets while a BPF Berkeley Packet Filter program denies the creation. This leads to a memory leak, allowing the user to consume...

CVE-2026-90108

A flaw was found in the Linux kernel's net/smc component. During a specific state transition in the smcllceventhandler, a previously stashed memory object qentry is overwritten without being properly freed. This oversight leads to a memory leak, where allocated memory is not released, potentially...

CVE-2026-90107

A flaw was found in the Linux kernel's net/smc component. The smcllcflowstop function, responsible for stopping a flow, performs a blind memory reset without first freeing a pending queue entry. This can lead to a memory leak if a duplicate link message arrives during a specific timing window,...

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

In the Linux kernel, the following vulnerability has been resolved: net/smc: avoided data corruption caused by decline. We identified a data corruption issue during testing of SMC-R in Redis applications. The benchmark has a low probability of reporting a strange error, as shown below: “Error:...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net/smc: fixed a deadlock caused by canceldelayedworksyn The following LOCKDEP was detected: Workqueue: events smclgrfreework smc WARNING: a circular locking dependency was detected...

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: net/smc: Reduced Rtnl pressure in smcpnetcreatepnetidslist. Many syzbot reports indicate extreme Rtnl pressure, and many of them suggest that smc acquires Rtnl during the creation of netnames without any valid reason 1. This patc...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: smc: Fixed a use-after-free in pnetfindbasendev. syzbot reported a use-after-free of netdevice in pnetfindbasendev, which was called during connect. 0 smcpnetfindismresource retrieves skdstgetsk-dev and passes it to...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/smc: Do not re-initialize smc hashtables The INITHLISTHEAD&smcvhashinfo.ht is called after smcnlinit, protoregister and sockregister. This can lead to smcvhashinfo.ht being reset, even though hash entries already exist and ar...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Firmware: armscmi: Fixed a double-free in the SMC transport cleanup process. When the generic SCMI code destroys a channel, it calls the chanfree callback function, which is defined by each transport. Since multiple protocols may...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/smc: fixed the TOCTOU race condition between smclistenout and listener close The smclistenout function reads lsmc-sk.skstate without acquiring the lock for the listener. It then only acquires locksocknested after the check...

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

In the Linux kernel, the following vulnerability has been resolved: net/smc: Fixed a situation where a socket reference was dropped after the link group termination process. The smclgrterminate function drops the connslock after finding a connection in lgr-connsall, but before taking a reference ...

Rocky Linux 9 [CIQ] Security Update: kernel-64k-debug-debuginfo / kernel-64k-debuginfo Multiple Vulnerabilities (crxsa-2026_3488)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crxsa-20263488 advisory. kernel: smc: Use skdstget and dstdevrcu in smcclcprfxmatch CVE-2025-40168 kernel: ipv6: BUG in pskbexpandhead as part of calipsoskbuffsetattr CVE-2025-7108...

Rocky Linux 9 [CIQ] Security Update: kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / etc Multiple Vulnerabilities (crlsa-2026_3488)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20263488 advisory. kernel: smc: Use skdstget and dstdevrcu in smcclcprfxmatch CVE-2025-40168 kernel: ipv6: BUG in pskbexpandhead as part of calipsoskbuffsetattr CVE-2025-7108...