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

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in pnetfindbasendev. syzbot reported use-after-free of netdevice in pnetfindbasendev, which was called during connect. 0 smcpnetfindismresource fetches skdstgetsk-dev and passes down to pnetfindbasendev,...

The vulnerability of the `trace_event_raw_event_smc_msg_event()` function in the `net/smc/smcTracePoint.h` header file of the Linux kernel allows a hacker to cause a service failure.

The vulnerability of the traceeventraweventsmcmsgevent function in the net/smc/smcTracePoint.h header file of the Linux kernel is related to pointer manipulation. Exploiting this vulnerability could allow an attacker to cause a service failure...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098734)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098734 advisory. In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in pnetfindbasendev. syzbot reported use-after-free of netdevice in...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098993)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098993 advisory. In the Linux kernel, the following vulnerability has been resolved: smc: Use skdstget and dstdevrcu in in smcclcprfxset. smcclcprfxset is called during connect and n...

The vulnerability of the smc_rx_pipe_buf_release() function in the net/smc/smc_rx.c module of the SMC protocol family, which is part of the Linux operating system’s kernel, allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

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-2026-74692

A flaw was found in the Linux kernel's net/smc component. A time-of-check to time-of-use TOCTOU race condition allows a remote attacker to exploit a window where the listener's state is checked without proper locking. By opening TCP connections while the server is closing, an attacker can cause a...

CVE-2026-74631

A flaw was found in the Linux kernel's smcrxsplice function within the net: smc component. This vulnerability arises from an imbalance in the lifetime management of splice entries, where page references are not properly handled before being passed to splicetopipe. This can lead to a reference cou...

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: Avoid 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 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 – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ARM: bcm: Fixed a refcount leak in bcmkonasmcinit. The offindmatchingnode function returns a node pointer with a refcount incremented. We should use ofnodeput on it when there is no longer a need for it. Added ofnodeput to avo...

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 that was triggered by canceldelayedworksyn The following LOCKDEP was detected: Workqueue: events smclgrfreework smc WARNING: possible circular locking dependency 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: The use of smclgrlist.lock is required to protect the iteration of smclgrlist.list during smcrportadd. During the execution of smcrportadd, there may be operations that add or delete entries from smclgrlist.list at the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net/smc: Fixed NULL pointer dereferencing in smcvlanbytcpsk. Coverity reports a possible NULL dereferencing issue: - In smcvlanbytcpsk: - 6. returnednull: netdevlowergetnext returns NULL checked 29 out of 30 times. - 7...

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 5.10

In the Linux kernel, the following vulnerability has been resolved: net/smc: fixed the connection leak issue. There is a potential leak issue under the following execution sequence: smcrelease, smcconnectwork if sk-skstate == SMCINIT sendclcconfirim tcpabort; ... sk-skstate = SMCACTIVE...

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 ...

SUSE CVE-2026-74692

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix TOCTOU race between smclistenout and listener close smclistenout reads lsmc-sk.skstate without the listener lock, then acquires locksocknested only after the check passes. This opens a window where smccloseactive can...

SUSE CVE-2026-74719

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix qentry overwrite for CONFIRMLINK and ADDLINKCONT in smcllceventhandler The SMCLLCCONFIRMLINK / SMCLLCADDLINKCONT branch in smcllceventhandler stores an incoming qentry into the local LLC flow without first checking...

CVE-2026-74719

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix qentry overwrite for CONFIRMLINK and ADDLINKCONT in smcllceventhandler The SMCLLCCONFIRMLINK / SMCLLCADDLINKCONT branch in smcllceventhandler stores an incoming qentry into the local LLC flow without first checking...

AZL-97179 CVE-2026-74719 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix qentry overwrite for CONFIRMLINK and ADDLINKCONT in smcllceventhandler The SMCLLCCONFIRMLINK / SMCLLCADDLINKCONT branch in smcllceventhandler stores an incoming qentry into the local LLC flow without first checking...