Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011094)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011094 advisory. In the Linux kernel, the following vulnerability has been resolved: tracing: Fix race issue between cpu buffer write and swap Warning happened in rbendcommit at cod...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013368)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013368 advisory. In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix deadloop issue on reading tracepipe Soft lockup occurs when reading file...

Linux kernel trace unregister_fprobe Heap Buffer Overflow DoS

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...

Linux kernel trace Events Hist Buffer Overflow DoS

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...

Linux kernel trace Ring Buffer Heap Buffer Overflow DoS

The vulnerability of the rbmapvma function in the kernel/trace/ringbuffer.c module, which supports kernel tracing in Linux operating systems, is related to the execution of operations outside the buffer boundaries. Exploiting this vulnerability could allow an attacker to cause a service failure...

Linux kernel trace ring buffer overflow DoS

The vulnerability of the rbresetcpu function in the kernel/trace/ringbuffer.c module, which supports Linux kernel tracing, is related to an infinite loop. Exploiting this vulnerability could allow an attacker to access protected information or cause service failures...

tracing/dma: Cap dma_map_sg tracepoint arrays to prevent buffer overflow

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kernel/trace/synth_event_gen_test Module DoS

The vulnerabilities of the functions testgensynthcmd and testemptysynthevent in the kernel/trace/syntheventgentest.c module, which support kernel tracing in Linux operating systems, are related to improper memory release. Exploiting these vulnerabilities could allow an attacker to cause a system...

Linux kernel trace events synth RCE

The vulnerability of the registersynthevent function in the kernel/trace/traceeventssynth.c module, which supports kernel tracing in Linux operating systems, relates to the execution of operations outside the buffer in memory. Exploiting this vulnerability could allow an attacker to access...

Linux kernel trace ring buffer overflow DoS

The vulnerability of the rbcheckbpage function in the kernel/trace/ringbuffer.c module, which is part of the Linux kernel’s tracing support, is related to improper validation of the integrity check value. Exploiting this vulnerability could allow an attacker to trigger a service failure...

CVE-2026-23390

In the Linux kernel, the following vulnerability has been resolved: tracing/dma: Cap dmamapsg tracepoint arrays to prevent buffer overflow The dmamapsg tracepoint can trigger a perf buffer overflow when tracing large scatter-gather lists. With devices like virtio-gpu creating large DRM buffers,...

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...

osnoise_cpus_write Heap Buffer Overflow DoS

The vulnerability of the osnoisecpuswrite function in the kernel/trace/traceosnoise.c module, which supports kernel tracing in Linux operating systems, relates to reading beyond the buffer boundaries. Exploiting this vulnerability could allow an attacker to cause a service failure...

Linux Kernel Heap Buffer Overflow DoS

The vulnerability of the ftracefuncmapperaddip function in the kernel/trace/ftrace.c module, which supports kernel tracing in Linux operating systems, is related to improper control of resource identifiers “resource injection”. Exploiting this vulnerability could allow an attacker to trigger a...

Linux kernel trace Heap Buffer Overflow DoS

The vulnerability of the removeinstance function in the kernel/trace/trace.c module, which supports Linux kernel tracing, is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to cause a service failure...

ftrace Heap Buffer Overflow DoS

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...

Linux kernel trace probe buffer overflow DoS

The vulnerability of the parseprobevars and parseprobearg functions in the kernel/trace/traceprobe.c module, which support kernel tracing in Linux operating systems, is related to the use of pointers. Exploiting this vulnerability could allow an attacker to cause a system failure...

Linux kernel trace get_eprobe_size processFetchInsn buffer overflow DoS

The vulnerabilities of the functions geteprobesize and processFetchInsn in the kernel/trace/traceeprobe.c module, which support kernel tracing in Linux operating systems, are related to pointer manipulation. Exploiting these vulnerabilities could allow an attacker to compromise the confidentialit...