Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007342)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007342 advisory. In the Linux kernel, the following vulnerability has been resolved: smc: Use skdstget and dstdevrcu in smcclcprfxmatch. smcclcprfxmatch is called from smclistenwork...

kernel: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match()

A flaw was found in the Linux kernel’s SMC Shared Memory Communication module: in smcclcprfxmatch, the function is called from smclistenwork without proper RCU or RTNL protection. The code previously used skdstgetsk-dev, which can lead to a use-after-free UAF condition if the sk’s destination is...

RockyLinux 8 : kernel (RLSA-2026:2264)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:2264 advisory. kernel: vsock/vmci: Clear the vmci transport packet properly when initializing it CVE-2025-38403 kernel: net: use dstdevrcu in sksetupcaps CVE-2025-40170...

CVE-2025-68188

In the Linux kernel, the following vulnerability has been resolved: tcp: use dstdevrcu in tcpfastopenactivedisableofocheck Use RCU to avoid a pair of atomic operations and a potential UAF on dstdev-flags...

CVE-2025-68188

CVE-2025-68188 concerns the Linux kernel TCP Fast Open code. The vulnerability arises from using dst_dev()->flags without proper RCU protection in tcp_fastopen_active_disable_ofo_check(), risking a use-after-free of the network device structure. A fix was applied to use dst_dev_rcu() to synchr...

Linux Distros Unpatched Vulnerability : CVE-2025-68188

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tcp: use dstdevrcu in tcpfastopenactivedisableofocheck Use RCU to avoid a pair of atomic operations and a potential UAF on dstdev-flags. CVE-2025-68188 Note tha...

net: use dst_dev_rcu() in sk_setup_caps()

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CVE-2025-40170

In the Linux kernel, the following vulnerability has been resolved: net: use dstdevrcu in sksetupcaps Use RCU to protect accesses to dst-dev from sksetupcaps and skdstgsomaxsize. Also use dstdevrcu in ip6dstmtumaybeforward, and ipdstmtumaybeforward. ip4dsthoplimit can use dstdevnetrcu...

AZL-78389 CVE-2025-40149 affecting package kernel for versions less than 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: tls: Use skdstget and dstdevrcu in getnetdevforsock. getnetdevforsock is called during setsockopt, so not under RCU. Using skdstgetsk-dev could trigger UAF. Let's use skdstget and dstdevrcu. Note that the only -ndoskgetlowerdev...

CVE-2025-40133

In the Linux kernel, the following vulnerability has been resolved: mptcp: Use skdstget and dstdevrcu in mptcpactiveenable. mptcpactiveenable is called from subflowfinishconnect, which is icsk-icskafops-skrxdstset and it's not always under RCU. Using skdstgetsk-dev could trigger UAF. Let's use...

UBUNTU-CVE-2025-40149

In the Linux kernel, the following vulnerability has been resolved: tls: Use skdstget and dstdevrcu in getnetdevforsock. getnetdevforsock is called during setsockopt, so not under RCU. Using skdstgetsk-dev could trigger UAF. Let's use skdstget and dstdevrcu. Note that the only -ndoskgetlowerdev...

CVE-2025-40149

In the Linux kernel, the following vulnerability has been resolved: tls: Use skdstget and dstdevrcu in getnetdevforsock. getnetdevforsock is called during setsockopt, so not under RCU. Using skdstgetsk-dev could trigger UAF. Let's use skdstget and dstdevrcu. Note that the only -ndoskgetlowerdev...

CVE-2025-40139

In the Linux kernel, the following vulnerability has been resolved: smc: Use skdstget and dstdevrcu in in smcclcprfxset. smcclcprfxset is called during connect and not under RCU nor RTNL. Using skdstgetsk-dev could trigger UAF. Let's use skdstget and devdstrcu under rcureadlock after...

CVE-2025-40074

The CVE-2025-40074 entry concerns a Linux kernel IPv4 issue resolved by updating core networking paths to prevent use-after-free (UAF) scenarios. Specifically, the patch shifts the kernel toward start_using dst_dev_rcu() for ipv4 paths and adjusts icmpv4_xrlim_allow() and ip_defrag() to mitigate ...

EUVD-2025-36454

In the Linux kernel, the following vulnerability has been resolved: ipv4: start using dstdevrcu Change icmpv4xrlimallow, ipdefrag to prevent possible UAF. Change ipmrpreparexmit, ipmrqueuefwdxmit, ipmroutput, ipv4neighlookup to use lockdep enabled dstdevrcu...