SUSE CVE-2026-72183

In the Linux kernel, the following vulnerability has been resolved: landlock: Fix LANDLOCKSCOPESIGNAL bypass on the SIGIO path LANDLOCKSCOPESIGNAL must prevent a sandboxed process from signaling processes outside its Landlock domain. It can be bypassed through the asynchronous SIGIO delivery path...

SUSE CVE-2026-59845

A flaw was found in libssh. When ProxyCommand is used, an unchecked fork failure can be stored as process ID -1; during cleanup, signals may then be sent across the caller's accessible process tree, leading to local denial of service...

CVE-2026-45259

The FreeBSD kernel contains a vulnerability in the kern_sigqueue implementation where sigqueue(2) lacks a capability mode check. This allows a process running in Capsicum capability mode to bypass sandbox restrictions and send signals to any process it could signal under standard Unix permissions...

CVE-2026-45256

The FreeBSD operating system is vulnerable to a privilege management flaw in the thr_kill2(2) system call. The kernel calls p_cansignal() to verify permissions but fails to check the return value before delivering the signal. This allows an unprivileged local user to bypass permission checks and ...

CVE-2026-52946

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...