CVE-2026-23309 tracing: Add NULL pointer check to trigger_data_free()

In the Linux kernel, the following vulnerability has been resolved: tracing: Add NULL pointer check to triggerdatafree If triggerdataalloc fails and returns NULL, eventhisttriggerparse jumps to the outfree error path. While kfree safely handles a NULL pointer, triggerdatafree does not. This cause...

CVE-2026-23309

CVE-2026-23309 refers to a Linux kernel vulnerability in the tracing subsystem. The issue was a NULL pointer dereference in trigger_data_free() when data->cmd_ops->set_filter is evaluated after a failed trigger_data_alloc() and returning NULL. The root cause was that trigger_data_free() did...

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

The vulnerability of the lookuprec function in the kernel/trace/ftrace.c module, which supports kernel tracing in Linux operating systems, is related to the repeated use of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity,...

Auditing MCP Servers for Over-Privileged Tool Capabilities

The Model Context Protocol MCP has emerged as a standard for connecting Large Language Models LLMs to external tools and data. However, MCP servers often expose privileged capabilities, such as file system access, network requests, and command execution that can be exploited if not properly...

CVE-2026-23217

CVE-2026-23217 relates to the Linux kernel on RISC-V where tracing the sbi_ecall functions can cause a deadlock in the snapshot path. The root cause is that sbi_ecall triggers a ringbuffer snapshot which may re-enter __sbi_ecall via an IPI, creating an endless loop when initial __sbi_ecall is pre...

SUSE CVE-2026-23138

In the Linux kernel, the following vulnerability has been resolved: tracing: Add recursion protection in kernel stack trace recording A bug was reported about an infinite recursion caused by tracing the rcu events with the kernel stack trace trigger enabled. The stack trace code called back into...

Siemens SIMATIC S7-1500 Out-of-bounds Read (CVE-2025-39683)

In the Linux kernel, the following vulnerability has been resolved: tracing: Limit access to parser-buffer when tracegetuser failed 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...

CVE-2026-23138

In the Linux kernel, the following vulnerability has been resolved: tracing: Add recursion protection in kernel stack trace recording A bug was reported about an infinite recursion caused by tracing the rcu events with the kernel stack trace trigger enabled. The stack trace code called back into...

CVE-2026-23138 tracing: Add recursion protection in kernel stack trace recording

In the Linux kernel, the following vulnerability has been resolved: tracing: Add recursion protection in kernel stack trace recording A bug was reported about an infinite recursion caused by tracing the rcu events with the kernel stack trace trigger enabled. The stack trace code called back into...

CVE-2026-25996

CVE-2026-25996 affects Inspektor Gadget. The vulnerability arises because string fields from eBPF events in the columns output mode are rendered to the terminal without sanitizing control characters or ANSI escape sequences, enabling injection via crafted event payloads. Affected surface includes...

The vulnerability of the `ftrace_module_enable()` function in the kernel/trace/ftrace.c module, which supports kernel tracing in Linux operating systems, allows a malicious actor to cause a service failure.

The vulnerability of the ftracemoduleenable function in the kernel/trace/ftrace.c module, which supports kernel tracing in Linux operating systems, is related to the improper disabling or release of resources. Exploiting this vulnerability could allow an attacker to cause a service failure...

EUVD-2026-5454

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix crash on synthetic stacktrace field usage When creating a synthetic event based on an existing synthetic event that had a stacktrace field and the new synthetic event used that field a kernel crash occurred: cd...

CVE-2026-23088 tracing: Fix crash on synthetic stacktrace field usage

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix crash on synthetic stacktrace field usage When creating a synthetic event based on an existing synthetic event that had a stacktrace field and the new synthetic event used that field a kernel crash occurred: cd...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues The following security issues were fixed: CVE-2025-38321: smb: Log an error when closeallcacheddirs fails bsc1246328. CVE-2025-38728: smb3: fix for slab out of bounds on mount to ksmbd bsc1249256. CVE-2025-39890:...

CVE-2025-71125 tracing: Do not register unsupported perf events

In the Linux kernel, the following vulnerability has been resolved: tracing: Do not register unsupported perf events Synthetic events currently do not have a function to register perf events. This leads to calling the tracepoint register functions with a NULL function pointer which triggers:...

CVE-2025-71125

CVE-2025-71125 affects the Linux kernel tracing subsystem. Synthetic events lack a function to register perf events, causing a NULL function pointer to be passed to tracepoint register logic and triggering a kernel warning in tracepoint_add_func. The patch replaces this path with a -ENODEV return...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001562)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001562 advisory. A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000987)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000987 advisory. The ringbufferresize function in kernel/trace/ringbuffer.c in the profiling subsystem in the Linux kernel before 4.6.1 mishandles certain integer calculations, which...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

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...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000503)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000503 advisory. In the Linux kernel, the following vulnerability has been resolved: tracing: Restructure traceclockglobal to never block It was reported that a fix to the ring buffe...