CVE-2025-40168 smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match().

In the Linux kernel, the following vulnerability has been resolved: smc: Use skdstget and dstdevrcu in smcclcprfxmatch. smcclcprfxmatch is called from smclistenwork and not under RCU nor RTNL. Using skdstgetsk-dev could trigger UAF. Let's use skdstget and dstdevrcu. Note that the returned value o...

CVE-2025-40168

The CVE-2025-40168 issue affects the Linux kernel in the smc_clc_prfx_match() function (net/smc/smc_clc.c); it can cause a use-after-free when dst_entry is handled outside RCU/RTNL. The recommended fix is to use __sk_dst_get() and dst_dev_rcu() to obtain the destination device. The vulnerability ...

CVE-2025-40168

In the Linux kernel, the following vulnerability has been resolved: smc: Use skdstget and dstdevrcu in smcclcprfxmatch. smcclcprfxmatch is called from smclistenwork and not under RCU nor RTNL. Using skdstgetsk-dev could trigger UAF. Let's use skdstget and dstdevrcu. Note that the returned value o...

CVE-2025-40158 ipv6: use RCU in ip6_output()

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6output Use RCU in ip6output in order to use dstdevrcu to prevent possible UAF. We can remove rcureadlock/rcureadunlock pairs from ip6finishoutput2...

CVE-2025-40149

CVE-2025-40149 affects the Linux kernel TLS path: get_netdev_for_sock() could trigger a use-after-free if sk_dst_get(sk)->dev is used during setsockopt(). The fix replaces sk_dst_get() with __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(), and notes that the only user of ->ndo_sk_g...

CVE-2025-40139 smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set().

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-2025-40139

Technical details for CVE-2025-40139 are not publicly provided in the supplied documents. Monitor for updates from the advisories.

CVE-2025-40135 ipv6: use RCU in ip6_xmit()

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6xmit Use RCU in ip6xmit in order to use dstdevrcu to prevent possible UAF...

CVE-2025-40133 mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().

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...

CVE-2025-40133 mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().

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...

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...

PT-2025-46645

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contained a flaw where accesses to dst-dev were not protected using Read-Copy-Update RCU. This issue was addressed by utilizing RCU in functions such as sk setup caps, s...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from not properly using the RCU to protect dstdev access, which could lead to reuse after release...

Linux Distros Unpatched Vulnerability : CVE-2025-40133

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mptcp: Use skdstget and dstdevrcu in mptcpactiveenable. mptcpactiveenable is called from subflowfinishconnect, which is icsk-icskafops-skrxdstset and it's not...

Linux Distros Unpatched Vulnerability : CVE-2025-40170

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: use dstdevrcu in sksetupcaps Use RCU to protect accesses to dst-dev from sksetupcaps and skdstgsomaxsize. Also use dstdevrcu in ip6dstmtumaybeforward, and...

Linux Distros Unpatched Vulnerability : CVE-2025-40139

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

kernel: tcp: drop secpath at the same time as we currently drop dst

In the Linux kernel, the following vulnerability has been resolved: tcp: drop secpath at the same time as we currently drop dst Xiumei reported hitting the WARN in xfrm6tunnelnetexit while running tests that boil down to: - create a pair of netns - run a basic TCP test over ipcomp6 - delete the...

Symlink Validation Bypass

tar-fs is vulnerable to symlink validation bypass. The vulnerability is due to improper validation of symbolic links during tar extraction, which allows an attacker to overwrite arbitrary files if the destination directory is predictable with a crafted tarball...

Improper Input Validation

github.com/siderolabs/omni is vulnerable to an improper input validation. The vulnerability is due to the lack of validation on the destination address in the WireGuard SideroLink interface configuration, which allows an attacker with access to a malicious workload to send arbitrary packets over...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988822)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988822 advisory. In the Linux kernel, the following vulnerability has been resolved: net: fix a memleak when uncloning an skb dst and its metadata When uncloning an skb dst and its...