CVE-2026-93167: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: csky: Fix a4/a5 restoration in syscall trace path The syscall trace path reloads syscall arguments from ptregs before calling the syscall handler. On C-SKY ABIv2, the 5th and 6th syscall arguments are prepared as stack arguments...

PT-2026-94963

Name of the Vulnerable Software and Affected Versions Linux kernel version 4.19.15 Description An issue exists in the syscall trace path for C-SKY ABIv2 where syscall arguments are reloaded from pt regs before the syscall handler is called. The system adjusts the sp stack pointer before loading...

SindriKit v2.0.0

SindriKit Offensive Development Deserves Better Architecture. A C library for building offensive capabilities. Core Concept Most offensive utilities hardcode their execution mechanics inside the technique's logic. A reflective loader doesn't just map an image; it maps it using a specific, hardcod...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: um: Fixed an out-of-bounds read in LDT setup syscallstubdata expects the datacount parameter to be the number of longs, not bytes. ================================================================== BUG: KASAN: Out-of-bounds acces...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: powerpc/47x: Fixed the crash that occurred during the 47x syscall return. Eddie reported that newer kernels crashed during boot on his 476FSP2 system: - The kernel attempted to execute the user page b7ee2000 – a potential...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: s390/syscalls: Added a spectre boundary for the syscall dispatch table. The s390 syscall number is directly controlled by the user space, but there is no arrayindexnospec boundary to prevent access beyond the syscall function...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel before version 6.6.7, a untrusted VMM could trigger the int80 syscall handling at any given point. This issue is related to the files arch/x86/coco/tdx/tdx.c and arch/x86/mm/memencryptamd.c...

Astra Linux – Vulnerability in libseccomp

In versions of libsseccomp before 2.4.0, 64-bit syscall argument comparisons using arithmetic operators LT, GT, LE, GE were not generated correctly. This issue could potentially allow bypassing seccomp filters and leading to potential privilege escalations...

Astra Linux – Vulnerability in Linux

There is an information disclosure vulnerability in the /proc/pid/syscall functionality of the Linux Kernel 5.1 Stable and 5.4.66. More specifically, this issue was introduced in v5.1-rc4 commit 631b7abacd02b88f4b0795c08b54ad4fc3e7c7c0 and is still present in v5.10-rc4. It is likely that all...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: arm64: compat: Do not treat the syscall number as ESRELx for a bad syscall If a compat process attempts to execute an unknown system call that exceeds the ARMNRCOMPATEND number, the kernel sends a SIGILL signal to the offending...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: hugetlbfs: Do not delete the error page from the page cache. This change is very similar to the change made for shmem 1. It addresses the same issue, but for the HugeTLBFS mechanism instead. Currently, when a poisoned HugeTLB pag...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ibprctlset function updates the Thread Information Flags TIFs for the task and updates the SPECCTRL MSR in the function speculationctrlupdate, but the IBPB is only issued at the next schedul...

Linux Distros Unpatched Vulnerability : CVE-2026-89489

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - openrisc: fix arbitrary kernel memory access via or1katomic syscall sysor1katomic syscall 244 in the or1k ABI takes two user pointers, v1 and v2, and swaps the...

Linux Distros Unpatched Vulnerability : CVE-2026-89603

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - entry: Fix seccomp bypass after ptrace with TSYNC Sashiko review pointed out the following issue. If a thread is stopped in syscalltraceenter for ptrace, anothe...

CVE-2026-89603

In the Linux kernel, the following vulnerability has been resolved: entry: Fix seccomp bypass after ptrace with TSYNC Sashiko review pointed out the following issue. If a thread is stopped in syscalltraceenter for ptrace, another thread can install a seccomp filter with SECCOMPFILTERFLAGTSYNC e.g...

DEBIAN-CVE-2026-89489

In the Linux kernel, the following vulnerability has been resolved: openrisc: fix arbitrary kernel memory access via or1katomic syscall sysor1katomic syscall 244 in the "or1k" ABI takes two user pointers, v1 and v2, and swaps the words they point to in hand-written assembly. l.lwz r29,0r4 l.lwz...

CVE-2026-89489

In the Linux kernel, the following vulnerability has been resolved: openrisc: fix arbitrary kernel memory access via or1katomic syscall sysor1katomic syscall 244 in the "or1k" ABI takes two user pointers, v1 and v2, and swaps the words they point to in hand-written assembly. l.lwz r29,0r4 l.lwz...

UBUNTU-CVE-2026-89603

In the Linux kernel, the following vulnerability has been resolved: entry: Fix seccomp bypass after ptrace with TSYNC Sashiko review pointed out the following issue. If a thread is stopped in syscalltraceenter for ptrace, another thread can install a seccomp filter with SECCOMPFILTERFLAGTSYNC e.g...

CVE-2026-89603

CVE-2026-89603 is a race condition in the Linux kernel's syscall_trace_enter() that allows seccomp filter bypass via ptrace. When a thread is stopped for ptrace, another thread can install a seccomp filter with SECCOMP_FILTER_FLAG_TSYNC; however, syscall_trace_enter() evaluates a cached 'work' va...

CVE-2026-89603

In the Linux kernel, the following vulnerability has been resolved: entry: Fix seccomp bypass after ptrace with TSYNC Sashiko review pointed out the following issue. If a thread is stopped in syscalltraceenter for ptrace, another thread can install a seccomp filter with SECCOMPFILTERFLAGTSYNC e.g...