Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: arm64: ftrace: consistently handles PLTs. Sometimes it is necessary to use a PLT entry to call a ftrace trampoline. This is handled by ftracemakecall and ftracemakenop, both of which have almost identical logic. However, this is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: tracing/userevents: Ensure that the write index cannot be negative. The write index indicates which event the data corresponds to and accesses a per-file array. This index is passed by user processes during write calls as the fir...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: - riscv: ftrace: Fixed a panic caused by preemption being disabled. In RISCV, we need to use an AUIPC + JALR pair to encode an immediate jump, creating a jump to an address beyond 4K. This may cause errors if we want to enable...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ftrace: Fixed recursive locking of directmutex in ftracemodifydirectcaller Naveen reported recursive locking of directmutex with the sample ftrace-direct-modify.ko file: 74.762406 WARNING: Possible recursive locking detected...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ftrace: Do not over-allocate ftrace memory The calculation of pgremaining in ftraceprocesslocs assumes that ENTRIESPERPAGE multiplied by 2^order equals the actual capacity of the allocated page group. However, ENTRIESPERPAGE i...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021557)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021557 advisory. In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix check for probe enabled in killkprobe In killkprobe, the check whether...

kernel: ftrace: Fix UAF when lookup kallsym after ftrace disabled

In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix UAF when lookup kallsym after ftrace disabled The following issue happens with a buggy module: BUG: unable to handle page fault for address: ffffffffc05d0218 PGD 1bd66f067 P4D 1bd66f067 PUD 1bd671067 PMD 101808067 PTE...

SUSE CVE-2026-43409

In the Linux kernel, the following vulnerability has been resolved: kprobes: avoid crash when rmmod/insmod after ftrace killed After we hit ftrace is killed by some errors, the kernel crash if we remove modules in which kprobe probes. BUG: unable to handle page fault for address: fffffbfff805000d...

CVE-2026-43409

A flaw was found in the Linux kernel's kprobes subsystem. When the ftrace tracing utility is disabled due to errors, a local user can cause a system crash by removing a kernel module that uses kprobe probes. This vulnerability arises from kprobes not correctly handling the ftrace disabled state,...

EUVD-2026-28715

In the Linux kernel, the following vulnerability has been resolved: kprobes: avoid crash when rmmod/insmod after ftrace killed After we hit ftrace is killed by some errors, the kernel crash if we remove modules in which kprobe probes. BUG: unable to handle page fault for address: fffffbfff805000d...

CVE-2026-43409

In the Linux kernel, the following vulnerability has been resolved: kprobes: avoid crash when rmmod/insmod after ftrace killed After we hit ftrace is killed by some errors, the kernel crash if we remove modules in which kprobe probes. BUG: unable to handle page fault for address: fffffbfff805000d...

UBUNTU-CVE-2026-43409

In the Linux kernel, the following vulnerability has been resolved: kprobes: avoid crash when rmmod/insmod after ftrace killed After we hit ftrace is killed by some errors, the kernel crash if we remove modules in which kprobe probes. BUG: unable to handle page fault for address: fffffbfff805000d...

CVE-2026-43409

In the Linux kernel, the following vulnerability has been resolved: kprobes: avoid crash when rmmod/insmod after ftrace killed After we hit ftrace is killed by some errors, the kernel crash if we remove modules in which kprobe probes. BUG: unable to handle page fault for address: fffffbfff805000d...

CVE-2026-43409 kprobes: avoid crash when rmmod/insmod after ftrace killed

In the Linux kernel, the following vulnerability has been resolved: kprobes: avoid crash when rmmod/insmod after ftrace killed After we hit ftrace is killed by some errors, the kernel crash if we remove modules in which kprobe probes. BUG: unable to handle page fault for address: fffffbfff805000d...

CVE-2026-43409

In the Linux kernel, the following vulnerability has been resolved: kprobes: avoid crash when rmmod/insmod after ftrace killed After we hit ftrace is killed by some errors, the kernel crash if we remove modules in which kprobe probes. BUG: unable to handle page fault for address: fffffbfff805000d...

CVE-2026-43409

In the Linux kernel, the following vulnerability has been resolved: kprobes: avoid crash when rmmod/insmod after ftrace killed After we hit ftrace is killed by some errors, the kernel crash if we remove modules in which kprobe probes. BUG: unable to handle page fault for address: fffffbfff805000d...

CVE-2026-43409 kprobes: avoid crash when rmmod/insmod after ftrace killed

In the Linux kernel, the following vulnerability has been resolved: kprobes: avoid crash when rmmod/insmod after ftrace killed After we hit ftrace is killed by some errors, the kernel crash if we remove modules in which kprobe probes. BUG: unable to handle page fault for address: fffffbfff805000d...

CVE-2026-43409

CVE-2026-43409 affects the Linux kernel kprobes subsystem: when ftrace is disabled due to errors, removing a module that uses kprobes can crash the system because kprobes_ftrace_disabled is not correctly handled. Root cause: kprobe_ftrace_disabled flag mishandling in __disarm_kprobe_ftrace(). Mit...

PT-2026-39070

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A crash can occur in the Linux kernel when removing or inserting modules that contain kprobe probes after ftrace has been killed due to errors. This happens because kprobes on ftrace do...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the possibility of a null pointer derefrence error occurring when the ftrace module is killed and...