CVE-2026-64190

A flaw was found in the Linux kernel's team driver. A local attacker with CAPNETADMIN capabilities could exploit a race condition during a team device mode change. This occurs when the teamchangemode function clears internal operation pointers before safely restoring them, while the teamxmit...

CVE-2026-64126

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate Add Extended Advertising Data length MGMTOPADDEXTADVDATA is registered as a variable-length command, with MGMTADDEXTADVDATASIZE as the fixed header size. The handler then uses cp-advdatalen and...

CVE-2026-64178

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: Fix UAF read of dev-name bnepaddconnection needs to keep holding the bnepsessionsem while reading dev-name just like bnepgetconnlist does; otherwise the bnepsession thread can concurrently free the netdevice, whi...

CVE-2026-64137

In the Linux kernel, the following vulnerability has been resolved: smb: client: require net admin for CIFS SWN netlink CIFSGENLCMDSWNNOTIFY is the userspace witness-notify command. The intended sender is the cifs.witness helper, but the generic-netlink operation currently has no capability flag,...

CVE-2026-63921 ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate().

In the Linux kernel, the following vulnerability has been resolved: ip6: vti: Use ip6tnl.net in vti6siocdevprivate. After patch 1/2 in this series, vti6update unlinks and relinks the tunnel through t-net. vti6siocdevprivate still uses devnetdev for the collision lookup. For a tunnel moved through...

CVE-2026-63921 ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate().

In the Linux kernel, the following vulnerability has been resolved: ip6: vti: Use ip6tnl.net in vti6siocdevprivate. After patch 1/2 in this series, vti6update unlinks and relinks the tunnel through t-net. vti6siocdevprivate still uses devnetdev for the collision lookup. For a tunnel moved through...

CVE-2026-63829 net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink

In the Linux kernel, the following vulnerability has been resolved: net: ipgre: require CAPNETADMIN in the device netns for changelink A tunnel changelink operates on at most two netns, devnetdev and the tunnel link netns t-net. They differ once the device is created in or moved to a netns other...

CVE-2026-53236 tcp: restrict SO_ATTACH_FILTER to priv users

In the Linux kernel, the following vulnerability has been resolved: tcp: restrict SOATTACHFILTER to priv users This patch restricts the use of SOATTACHFILTER cBPF on TCP sockets to users with CAPNETADMIN capability. This blocks potential side-channel attack where an unprivileged application...

EUVD-2026-38943

In the Linux kernel, the following vulnerability has been resolved: ppp: require CAPNETADMIN in target netns for unattached ioctls /dev/ppp open is currently authorized against file-fcred-userns, while unattached administrative ioctls operate on current-nsproxy-netns. As a result, a local...

CVE-2026-45841

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix divide-by-zero in OSFWSSMODULO nfosfmatchone computes ctx-window % f-wss.val in the OSFWSSMODULO branch with no guard for f-wss.val == 0. A CAPNETADMIN user can add such a fingerprint via nfnetlink; a...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel. This vulnerability stems from the vport netlink reply helper function, which allocates skb packets of a fixed size but h...

CVE-2026-31692

A flaw was found in the Linux kernel's rtnetlink component. An unprivileged local user, leveraging a user namespace, can exploit a missing CAPNETADMIN capability check in the rtnlnewlink function. This allows the user to create paired network devices in arbitrary network namespaces, including the...

kernel: kernel: Privilege escalation or denial of service via use-after-free in nf_tables_addchain()

A flaw was found in the Linux kernel. A local attacker with CAPNETADMIN capabilities, or remote packet traffic, could exploit a use-after-free vulnerability in the nftablesaddchain function's error handling. Successful exploitation could lead to a kernel crash, resulting in a Denial of Service Do...

kernel: kernel: Privilege escalation or denial of service via use-after-free in nf_tables_addchain()

A flaw was found in the Linux kernel. A local attacker with CAPNETADMIN capabilities, or remote packet traffic, could exploit a use-after-free vulnerability in the nftablesaddchain function's error handling. Successful exploitation could lead to a kernel crash, resulting in a Denial of Service Do...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004305)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004305 advisory. An issue was discovered in the Linux kernel before 5.6.7. xdpumemreg in net/xdp/xdpumem.c has an out- of-bounds write by a user with the CAPNETADMIN capability becau...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002803)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002803 advisory. An issue was discovered in the Linux kernel before 4.18.11. The ipddpioctl function in drivers/net/appletalk/ipddp.c allows local users to obtain sensitive kernel...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002863)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002863 advisory. The nfnetlinkrcvbatch function in net/netfilter/nfnetlink.c in the Linux kernel before 4.5 does not check whether a batch message's length field is large enough, whi...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001958)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001958 advisory. The socksetsockopt function in net/core/sock.c in the Linux kernel before 3.5 mishandles negative values of sksndbuf and skrcvbuf, which allows local users to cause ...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003066)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003066 advisory. A security flaw was discovered in the nl80211setrekeydata function in net/wireless/nl80211.c in the Linux kernel through 4.13.3. This function does not check whether...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002766)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002766 advisory. A security flaw was discovered in the nl80211setrekeydata function in net/wireless/nl80211.c in the Linux kernel through 4.13.3. This function does not check whether...