SunnyDayBPF

SunnyDayBPF SunnyDayBPF is an eBPF-based post-syscall user-buffer telemetry deception research technique originally proposed and researched by Azizcan Dastan. The technique investigates whether data observed by user-space security, logging, or telemetry agents can be altered after a read-like...

CVE-2026-31431-mitigation-suite

AFALG Defense Framework A kernel-runtime defense framework for the Linux AFALG Address Family Algorithm, family 38 subsystem. Built for Security Operations Centers running enterprise Linux fleets where Zero Trust must extend into the kernel, not stop at the network edge. Why AFALG matters to a SO...

cve-2021-33909

Kernel runtime fix of CVE-2021-33909 This repository builds an out-of-tree module named "cve-2021-33909.ko". cve-2021-33909 fixes an issue in the kernels filesystem layer by kprobe-replacing vulnerable functions during runtime. It can be build via "make", setting KDIR to the kernels...

Linux Distros Unpatched Vulnerability : CVE-2026-98530

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - kprobes: Fix permanent hang when flushing the kprobe optimizer Writing 0 to /proc/sys/debug/kprobes- optimization while a kprobe is jump-optimized never returns...

CVE-2026-98530

In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix permanent hang when flushing the kprobe optimizer Writing 0 to /proc/sys/debug/kprobes-optimization while a kprobe is jump-optimized never returns. The writer sleeps in D state forever with kprobesysctlmutex held, so...

UBUNTU-CVE-2026-98530

In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix permanent hang when flushing the kprobe optimizer Writing 0 to /proc/sys/debug/kprobes-optimization while a kprobe is jump-optimized never returns. The writer sleeps in D state forever with kprobesysctlmutex held, so...

DEBIAN-CVE-2026-98530

In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix permanent hang when flushing the kprobe optimizer Writing 0 to /proc/sys/debug/kprobes-optimization while a kprobe is jump-optimized never returns. The writer sleeps in D state forever with kprobesysctlmutex held, so...

CVE-2026-98530

In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix permanent hang when flushing the kprobe optimizer Writing 0 to /proc/sys/debug/kprobes-optimization while a kprobe is jump-optimized never returns. The writer sleeps in D state forever with kprobesysctlmutex held, so...

CVE-2026-98861 fprobe: Use guard(rcu_sched_notrace) and check rcu_is_watching()

In the Linux kernel, the following vulnerability has been resolved: fprobe: Use guardrcuschednotrace and check rcuiswatching unregisterfprobe and unregisterfprobeasync used by BPF kprobe-multi rely on standard RCU grace periods synchronizercu and callrcu to wait until in-flight fprobe handlers...

CVE-2026-98530

The Linux kernel contains a vulnerability where writing 0 to /proc/sys/debug/kprobes-optimization while a kprobe is jump-optimized can cause a permanent hang . The issue occurs because the writer sleeps in D state while holding the kprobe_sysctl_mutex, preventing any subsequent reads or writes to...

CVE-2026-98530

In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix permanent hang when flushing the kprobe optimizer Writing 0 to /proc/sys/debug/kprobes-optimization while a kprobe is jump-optimized never returns. The writer sleeps in D state forever with kprobesysctlmutex held, so...

CVE-2026-98530 kprobes: Fix permanent hang when flushing the kprobe optimizer

In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix permanent hang when flushing the kprobe optimizer Writing 0 to /proc/sys/debug/kprobes-optimization while a kprobe is jump-optimized never returns. The writer sleeps in D state forever with kprobesysctlmutex held, so...

EUVD-2026-103575

In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix permanent hang when flushing the kprobe optimizer Writing 0 to /proc/sys/debug/kprobes-optimization while a kprobe is jump-optimized never returns. The writer sleeps in D state forever with kprobesysctlmutex held, so...

CVE-2026-98530 kprobes: Fix permanent hang when flushing the kprobe optimizer

In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix permanent hang when flushing the kprobe optimizer Writing 0 to /proc/sys/debug/kprobes-optimization while a kprobe is jump-optimized never returns. The writer sleeps in D state forever with kprobesysctlmutex held, so...

PT-2026-117080

In the Linux kernel, the following vulnerability has been resolved: fprobe: Use guardrcu sched notrace and check rcu is watching unregister fprobe and unregister fprobe async used by BPF kprobe-multi rely on standard RCU grace periods synchronize rcu and call rcu to wait until in-flight fprobe...

PT-2026-116749

In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix permanent hang when flushing the kprobe optimizer Writing 0 to /proc/sys/debug/kprobes-optimization while a kprobe is jump-optimized never returns. The writer sleeps in D state forever with kprobe sysctl mutex held, ...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/kprobes: Fixed a null pointer reference in archpreparekprobe I found a null pointer reference in archpreparekprobe: echo 'p cmdlineprocshow' kprobeevents echo 'p cmdlineprocshow+16' kprobeevents The kernel attempted to re...

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 in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: kprobes/x86: Use copyfromkernelnofault to read from an unsafe address. Reading from an unsafe address using copyfromkernelnofault in archadjustkprobeaddr is allowed because this function is called before checking whether the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: rcu: Avoid stack overflow due to rcuirqenterchecktick being kprobed. Registering a kprobe for rcuirqenterchecktick can cause a kernel stack overflow, as shown below. This issue can be reproduced by enabling CONFIGNOHZFULL and...