CVE-2026-45259 sigqueue(2) missing capability mode restriction

sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...

futex: Prevent lockup in requeue-PI during signal/ timeout wakeup

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SUSE CVE-2026-52977

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent lockup in requeue-PI during signal/ timeout wakeup During wait-requeue-pi task A and requeue-PI task B the following race can happen: Task A Task B futexwaitrequeuepi futexsetuptimer futexdowait futexrequeue CLASSh...

PT-2026-53061

Name of the Vulnerable Software and Affected Versions FreeBSD affected versions not specified Description The implementation of the kern sigqueue function failed to include a capability mode check. This allows a process operating in Capsicum capability mode—a security framework that restricts...

CVE-2026-45259: Incorrect Privilege Assignment

sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...

FBI Warns Russian Intelligence Hackers Target Signal Backup Recovery Keys

The FBI and CISA have updated their March warning about Russian intelligence phishing Signal accounts, and the operators have added a step: they now coax targets into handing over their Signal Backup Recovery Key. Hand it over once, and the attacker can restore the account's backup, read the...

EUVD-2026-39776

When used to deliver a signal to a specific thread, thrkill22 called pcansignal to determine whether the operation was permitted but did not check the result before delivering the signal. The signal was sent even when the permission check failed. The system call returned the resulting error to th...

CVE-2026-45256

When used to deliver a signal to a specific thread, thrkill22 called pcansignal to determine whether the operation was permitted but did not check the result before delivering the signal. The signal was sent even when the permission check failed. The system call returned the resulting error to th...

CVE-2026-52946

A flaw was found in the Linux kernel. A lock order deadlock can occur in the sendsigio and sendsigurg functions when a process group receives a signal. This vulnerability, caused by an unsafe lock order during software interrupts SOFTIRQ in asynchronous I/O fasync signaling, could allow a remote...

CVE-2026-45256 Missing permission check in thr_kill2(2)

When used to deliver a signal to a specific thread, thrkill22 called pcansignal to determine whether the operation was permitted but did not check the result before delivering the signal. The signal was sent even when the permission check failed. The system call returned the resulting error to th...

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-2026-53158

A flaw was found in the Linux kernel's fastrpc component. This vulnerability occurs due to a NULL pointer dereference when the Digital Signal Processor DSP sends a glink message before the fastrpc driver is fully initialized. This can lead to system instability or a denial of service DoS conditio...

CVE-2026-53161

A flaw was found in the Linux kernel's fastrpc module. A race condition between closing a file descriptor and processing Digital Signal Processor DSP responses can lead to a use-after-free vulnerability. This allows a local attacker to potentially cause a system crash or, in some cases, execute...

CVE-2026-53159

A flaw was found in the Linux kernel's fastrpc module. The fastrpcgetargs function incorrectly calculates a Direct Memory Access DMA address offset for user-provided pointers. This can lead to an underflow, corrupting the DMA address sent to the Digital Signal Processor DSP. This corruption could...

Linux Kernel Heap Buffer Overflow DoS

The vulnerability of the dwc3removerequests function in Linux operating system kernels is related to the situation of signal handling. Exploiting this vulnerability can allow an attacker to cause service failures or execute arbitrary code...

PT-2026-52723

When used to deliver a signal to a specific thread, thr kill22 called p cansignal to determine whether the operation was permitted but did not check the result before delivering the signal. The signal was sent even when the permission check failed. The system call returned the resulting error to...

GO-2026-5766 Temporal Server: attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster in go.temporal.io/server

Temporal Server: attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster in go.temporal.io/server...

EUVD-2026-38845

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent lockup in requeue-PI during signal/ timeout wakeup During wait-requeue-pi task A and requeue-PI task B the following race can happen: Task A Task B futexwaitrequeuepi futexsetuptimer futexdowait futexrequeue CLASSh...

CVE-2026-52977

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent lockup in requeue-PI during signal/ timeout wakeup During wait-requeue-pi task A and requeue-PI task B the following race can happen: Task A Task B futexwaitrequeuepi futexsetuptimer futexdowait futexrequeue CLASSh...

CVE-2026-52977 futex: Prevent lockup in requeue-PI during signal/ timeout wakeup

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent lockup in requeue-PI during signal/ timeout wakeup During wait-requeue-pi task A and requeue-PI task B the following race can happen: Task A Task B futexwaitrequeuepi futexsetuptimer futexdowait futexrequeue CLASSh...