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...

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...

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...

The vulnerability in the kernel/trace/traceeventshist.c module, which supports Linux operating system kernel tracing, allows an attacker to compromise the confidentiality, integrity, and accessibility of protected information.

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...

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 6.1, 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...

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: 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, 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 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 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 “hist” field, potentially affecting the “namedTriggers” list. The following commands cause a crash: cd /sys/kernel/tracing/events/rcu/rcucallback echo...

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: 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...

Vulnerability of components in Linux operating system’s kernel tracing mechanism, allowing attackers to cause service interruptions

The vulnerability of components related to Linux operating system kernel tracing is related to the insufficient use of the assert function. Exploiting this vulnerability can allow an attacker to cause a service failure...

PT-2026-72573

In the Linux kernel, the following vulnerability has been resolved: tracing/fprobe: Fix NULL pointer dereference in fprobe fgraph entry fprobe fgraph entry sizes a shadow-stack reservation in one walk of the per-ip fprobe list and fills it in a second walk, both under rcu read lock only. A fprobe...

Linux Distros Unpatched Vulnerability : CVE-2026-74471

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tracing: Check return value of registerevent in tracemoduleaddevents tracemoduleaddevents ignores the return value of registerevent and unconditionally calls...

CVE-2026-68283 tracing: Fix use-after-free freeing trigger private data

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix use-after-free freeing trigger private data Commit 61d445af0a7c "tracing: Add bulk garbage collection of freeing eventtriggerdata" moved the kfree of eventtriggerdata to a kthread that runs...

CVE-2026-68176 tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix mmiotrace possible NULL dereferencing of hiter-dev If the mmiopipeopen fails to find a PCI device, the hiter-dev will be assigned to NULL. The mmiotrace read function dereferences the hiter-dev if hiter exists. Chang...

EUVD-2026-55276

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix resource leak on mmiotrace tracepipe close The mmiotrace tracer was added May 12th 2008. At that time, resources created in pipeopen could not be freed because there was not pipeclose function pointer of the tracer...

CVE-2026-68174

The vulnerability CVE-2026-68174 affects the Linux kernel tracing subsystem. In struct trace_event_call, the module pointer and the refcnt atomic share a union, so for dynamic events (kprobe, uprobe, fprobe, eprobe, wprobe) the refcnt may be non-zero and cause call->module to appear as a small...

Linux Distros Unpatched Vulnerability : CVE-2026-68146

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ftrace: Add global mutex to serialize traceparser access In ftrace, the traceparser structure is allocated and initialized when a trace file is opened, and is...

CVE-2026-64451 tracing: Fix NULL pointer dereference in func_set_flag()

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix NULL pointer dereference in funcsetflag funcsetflag dereferences tr-currenttraceflags before verifying that the current tracer is actually the function tracer. When the active tracer has been switched away from...