CVE-2026-74342

In the Linux kernel, the following vulnerability has been resolved: kernfs: link kn to its parent before the LSM init hook After commit 12e9e3cd03b5 "simpexattr: use per-sb cache", kernfsxattrset and kernfsxattrget compute the cache via kernfsrootkn before any other check. kernfsrootkn walks...

CVE-2026-72243

In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update...

CVE-2026-72242

In the Linux kernel, the following vulnerability has been resolved: selinux: avoid sksocket dereference in selinuxsctpbindconnect selinuxsctpbindconnect dereferences sk-sksocket to pass a struct socket to selinuxsocketbind and selinuxsocketconnecthelper. However, when the hook is invoked from the...

CVE-2026-74342

The CVE-2026-74342 entries describe a Linux kernel issue in kernfs where the LSM security hook runs before kn->__parent and kn->dir.root are initialized, causing a NULL-pointer dereference in kernfs_root(kn) (triggered during the first cgroup mkdir under /sys/fs/cgroup on SELinux-enabled sy...

EUVD-2026-59489

In the Linux kernel, the following vulnerability has been resolved: kernfs: link kn to its parent before the LSM init hook After commit 12e9e3cd03b5 "simpexattr: use per-sb cache", kernfsxattrset and kernfsxattrget compute the cache via kernfsrootkn before any other check. kernfsrootkn walks...

CVE-2026-74342 kernfs: link kn to its parent before the LSM init hook

In the Linux kernel, the following vulnerability has been resolved: kernfs: link kn to its parent before the LSM init hook After commit 12e9e3cd03b5 "simpexattr: use per-sb cache", kernfsxattrset and kernfsxattrget compute the cache via kernfsrootkn before any other check. kernfsrootkn walks...

CVE-2026-72243 selinux: check connect-related permissions on TCP Fast Open

In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update...

EUVD-2026-59142

In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update...

CVE-2026-72243 selinux: check connect-related permissions on TCP Fast Open

In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update...

CVE-2026-72243

CVE-2026-72243 : In the Linux kernel, SELinux did not validate connect-related permissions for TCP Fast Open. The fix updates the socket_sendmsg() hook to call selinux_socket_connect() when MSG_FASTOPEN is used, ensuring proper permission checks similar to Landlock. This is a patch-level remediat...

EUVD-2026-59141

In the Linux kernel, the following vulnerability has been resolved: selinux: avoid sksocket dereference in selinuxsctpbindconnect selinuxsctpbindconnect dereferences sk-sksocket to pass a struct socket to selinuxsocketbind and selinuxsocketconnecthelper. However, when the hook is invoked from the...

CVE-2026-72242

The CVE-2026-72242 entry concerns the Linux kernel SELinux SCTP path—selinux_sctp_bind_connect() dereferences sk->sk_socket, which could be NULL when invoked from the ASCONF softirq path (sctp_process_asconf). The issue is addressed by refactoring to avoid touching sk->sk_socket and by maki...

CVE-2026-72242 selinux: avoid sk_socket dereference in selinux_sctp_bind_connect()

In the Linux kernel, the following vulnerability has been resolved: selinux: avoid sksocket dereference in selinuxsctpbindconnect selinuxsctpbindconnect dereferences sk-sksocket to pass a struct socket to selinuxsocketbind and selinuxsocketconnecthelper. However, when the hook is invoked from the...

CVE-2026-72242 selinux: avoid sk_socket dereference in selinux_sctp_bind_connect()

In the Linux kernel, the following vulnerability has been resolved: selinux: avoid sksocket dereference in selinuxsctpbindconnect selinuxsctpbindconnect dereferences sk-sksocket to pass a struct socket to selinuxsocketbind and selinuxsocketconnecthelper. However, when the hook is invoked from the...

PT-2026-72430

In the Linux kernel, the following vulnerability has been resolved: selinux: avoid sk socket dereference in selinux sctp bind connect selinux sctp bind connect dereferences sk-sk socket to pass a struct socket to selinux socket bind and selinux socket connect helper. However, when the hook is...

PT-2026-72431

In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update...

PT-2026-72778

In the Linux kernel, the following vulnerability has been resolved: kernfs: link kn to its parent before the LSM init hook After commit 12e9e3cd03b5 "simpe xattr: use per-sb cache", kernfs xattr set and kernfs xattr get compute the cache via kernfs rootkn before any other check. kernfs rootkn wal...

kernel: selinux: fix overlayfs mmap() and mprotect() access checks

A flaw was found in the Linux kernel's SELinux security module when handling overlayfs. The existing security model for overlayfs does not properly enforce access controls for mmap and mprotect operations. This oversight could allow a local attacker to bypass intended security policies, potential...

kernel: selinux: fix overlayfs mmap() and mprotect() access checks

A flaw was found in the Linux kernel's SELinux security module when handling overlayfs. The existing security model for overlayfs does not properly enforce access controls for mmap and mprotect operations. This oversight could allow a local attacker to bypass intended security policies, potential...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ima: Handle error codes returned by imafilterrulematch. In imamatchrules, if imafilterrulematch returns -ENOENT due to the rule being NULL, the function incorrectly skips the 'if !rc' check and sets 'result = true'. The LSM rule ...