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

In the Linux kernel, the following vulnerabilities have been resolved: firmwareloader: Block path traversal Most firmware names are hardcoded strings, or are constructed from fairly constrained format strings where the dynamic parts are just some hexadecimal numbers or similar elements. However,...

Astra Linux – Vulnerability in Linux

A issue was discovered in netfilter within the Linux kernel before version 5.10. There may be a use-after-free situation in the packet processing context, as the per-CPU sequence count is mishandled during concurrent iptables rule replacements. This vulnerability could be exploited with the...

CVE-2026-72051 net: ip6_tunnel: require CAP_NET_ADMIN in the device netns for changelink

In the Linux kernel, the following vulnerability has been resolved: net: ip6tunnel: require CAPNETADMIN in the device netns for changelink ip6tnlchangelink 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-2026-68142

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

UBUNTU-CVE-2026-68124

In the Linux kernel, the following vulnerability has been resolved: mctp: serial: handle zero-length frames to prevent rx buffer overflow The MCTP serial receive state machine reads a frame length byte in mctpserialpushheader case 2 and validates it upper-bound-only: if c MCTPSERIALFRAMEMTU...

SUSE 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-2026-64126

A flaw was found in the Linux kernel's Bluetooth Management MGMT subsystem. The handler for the MGMTOPADDEXTADVDATA command does not correctly validate the lengths of extended advertising data and scan response data against the overall command payload. This oversight allows a local attacker with...

CVE-2026-63829

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...

SUSE CVE-2026-53075

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...

UBUNTU-CVE-2026-53236

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...

CVE-2026-53075

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-2026-53075 ppp: require CAP_NET_ADMIN in target netns for unattached ioctls

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-2026-53075

The CVE-2026-53075 issue affects the Linux kernel PPP subsystem. A local unprivileged user can create a new user namespace (CLONE_NEWUSER), obtain CAP_NET_ADMIN only in that namespace, and still perform unattached PPP administrative IOCTLs (PPPIOCNEWUNIT, PPPIOCATTACH, PPPIOCATTCHAN) against an i...

CVE-2026-45254

In the case of the capnet service, when a key present in the old limit was omitted from the new limit, the missing key was treated as "allow any" instead of being rejected. In certain scenarios, an application that had previously restricted a subset of network operations could ask for a new limit...

UBUNTU-CVE-2026-45840

In the Linux kernel, the following vulnerability has been resolved: openvswitch: cap upcall PID array size and pre-size vport replies The vport netlink reply helpers allocate a fixed-size skb with nlmsgnewNLMSGDEFAULTSIZE, ... but serialize the full upcall PID array via ovsvportgetupcallportids...

CVE-2026-45840 openvswitch: cap upcall PID array size and pre-size vport replies

In the Linux kernel, the following vulnerability has been resolved: openvswitch: cap upcall PID array size and pre-size vport replies The vport netlink reply helpers allocate a fixed-size skb with nlmsgnewNLMSGDEFAULTSIZE, ... but serialize the full upcall PID array via ovsvportgetupcallportids...

CVE-2026-45254

In the case of the capnet service, when a key present in the old limit was omitted from the new limit, the missing key was treated as "allow any" instead of being rejected. In certain scenarios, an application that had previously restricted a subset of network operations could ask for a new limit...

CVE-2026-45254 Incorrect libcap_net limitation list manipulation

In the case of the capnet service, when a key present in the old limit was omitted from the new limit, the missing key was treated as "allow any" instead of being rejected. In certain scenarios, an application that had previously restricted a subset of network operations could ask for a new limit...

EUVD-2026-31264

In the case of the capnet service, when a key present in the old limit was omitted from the new limit, the missing key was treated as "allow any" instead of being rejected. In certain scenarios, an application that had previously restricted a subset of network operations could ask for a new limit...

CVE-2026-45254

In the case of the capnet service, when a key present in the old limit was omitted from the new limit, the missing key was treated as "allow any" instead of being rejected. In certain scenarios, an application that had previously restricted a subset of network operations could ask for a new limit...