sigwire

sigwire tail -f for signals. Every signal any process on the box raises — who sent it, who it hit, which signal, how it was raised kill2, the kernel, a POSIX timer, whether the target caught it and how long its handler ran, whether it tore a blocked syscall out with EINTR — decoded off the kernel...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Tracing: Fixed a race condition in kprobe initialization that could lead to NULL pointer dereferencing. There is a critical race condition in kprobe initialization that can result in NULL pointer dereferencing and cause the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Tracing: Fixed a use-after-free in printgraphfunctionflags during tracer switching. Kairui reported a UAF issue in printgraphfunctionflags during ftrace stress testing 1. This issue can be reproduced by putting a ‘mdelay10’ after...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Tracing: kprobe: Fixed a potential null-ptr-dereference in tracearray in kprobeeventgentestexit When testgenkprobecmd fails after kprobeeventgencmdend, it will go to delete, which will call kprobeeventdelete and release the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Tracing: Limit access to parser-buffer when tracegetuser fails. When the length of the string written to setftracefilter exceeds FTRACEBUFFMAX, the following KASAN alarm will be triggered: BUG: KASAN: Slab-out-of-bounds in...

EUVD-2026-80602

In the Linux kernel, the following vulnerability has been resolved: dmaengine: fsl-edma: tracing: no ptr dereference during log output The fsl edma events store a pointer to a struct fsledmaengine in the ringbuffer and dereference it when a log entry is printed. At this time, the pointer may no...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: Tracing: The length check that causes memory corruption was corrected. We have experienced severe kernel crashes due to memory corruption in our production environment. For example: Call Trace: 1640542.554277 General protectio...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Ring Buffer: Do not swap the cpubuffer during the resize process When the ringbufferswapcpu function is called during the resize process, the cpu buffer is swapped in the middle, resulting in an incorrect state. Continuing to run...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Tracing: Fixed an issue where corrupted data was written to the “bad” hist list, potentially affecting named triggers. The following commands cause a crash: cd /sys/kernel/tracing/events/rcu/rcucallback echo...

Astra Linux – Vulnerability in Linux, Linux 5.10

It was discovered that there was a lack of CPU resources in the Linux kernel tracing module functionality in versions prior to 5.14-rc3. This issue occurred due to the way users utilize the trace ring buffer. Only privileged local users with the CAPSYSADMIN capability could exploit this flaw to...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Tracing: The warning in tracebufferedeventdisable has been fixed. The warning occurred in tracebufferedeventdisable at WARNONONCE!tracebufferedeventref. Call Trace: - warn+0xa5/0x1b0 - tracebufferedeventdisable+0x189/0x1b0 -...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Tracing/histograms: Add histograms to histvars if they reference variables. Triggers may have referenced variables without having direct variable fields. This can occur if referenced variables are added for trigger actions. In...

Linux Kernel Trace Buffer Overflow DoS

The vulnerability of the tracingreleasepipe function in the kernel/trace/trace.c module, which supports kernel tracing in Linux operating systems, is related to the absence of memory release after the effective lifespan has ended. Exploiting this vulnerability can allow an attacker to cause a...

Linux Kernel Heap Buffer Overflow DoS

The vulnerability of the ftraceeventenabledisable function in the kernel/trace/traceevents.c module, which supports Linux operating system’s kernel tracing, is related to the copying of buffers without checking the input data. Exploiting this vulnerability can allow an attacker to cause a service...

Linux kernel trace ring buffer Heap Buffer Overflow DoS

The vulnerability of the rbmetavalidateevents function in the kernel/trace/ringbuffer.c module, which supports kernel tracing in Linux operating systems, is related to the pointer manipulation. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2026-80611

A flaw was found in the Linux kernel's Advanced Configuration and Power Interface ACPI processor idle functionality. When kernel tracing features, such as function tracing or Kprobes, are enabled, entering a Low Power Idle LPI state can trigger a Read-Copy Update RCU warning. This occurs because...

ROS-20260828-73-0008

The vulnerability of the eventHistTriggerParse function in the kernel/trace/traceEventsHist.c module, which supports kernel tracing in Linux operating systems, is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the...

ROS-20260828-73-0011

The vulnerability of the unregisterfprobe function in the kernel/trace/fprobe.c module, which supports kernel tracing in Linux operating systems, is related to synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to cause a service failure...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098890)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098890 advisory. In the Linux kernel, the following vulnerability has been resolved: tracing: Prevent out-of-bounds read in glob matching String event fields are not necessarily...

Linux kernel trace event history DoS

The vulnerability in the kernel/trace/traceeventshist.c module, which supports kernel tracing in Linux operating systems, is related to errors in calculating buffer size. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of...