setcred

FreeBSD setcred2 — research artifacts This subdirectory collects the write-up and working exploits for the setcred2 stack buffer overflow in FreeBSD 14.x kernel. The vulnerability itself is fully documented in setcred.txt. The short version: kernsetcredcopyinsuppgroups uses sizeofgroups where...

CVE-2017-7184

CVE-2017-7184 – Linux Kernel XFRM Privilege Escalation No Sudo Overview This repository contains a proof-of-concept local privilege escalation exploit for CVE-2017-7184 , a Linux kernel vulnerability in the XFRM IPsec netlink subsystem. The exploit demonstrates how an unprivileged user can gain...

Linux Distros Unpatched Vulnerability : CVE-2026-99031

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: bridge: avoid recursive multicast port cleanup brmulticastsgdelexcludeports removes automatically added STAREXCL port groups by calling brmulticastdelpg. F...

Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel versions prior to 6.18.55 and 7.2.9. This vulnerability stems from a default insufficient size of the kernel stack in 64-bit kernels, which may lead to a kernel stack overflow and trigger a kernel crash...

CVE-2026-19669 Unbounded variable-length array in fuel gauge syscall verifiers allows kernel stack overflow from user mode

The user-mode syscall verifiers zvrfyfuelgaugegetprops and zvrfyfuelgaugesetprops in drivers/fuelgauge/fuelgaugesyscallhandlers.c declared two variable-length arrays, union fuelgaugepropval kvalslen and fuelgaugepropt kpropslen, sized directly by the caller-supplied len argument. len is an...

CVE-2026-19669

The Zephyr RTOS is vulnerable to a kernel stack overflow due to unbounded variable-length arrays (VLAs) in the z_vrfy_fuel_gauge_get_props() and z_vrfy_fuel_gauge_set_props() functions within drivers/fuel_gauge/fuel_gauge_syscall_handlers.c. An attacker can provide an unvalidated len argument via...

CVE-2026-19669 Unbounded variable-length array in fuel gauge syscall verifiers allows kernel stack overflow from user mode

The user-mode syscall verifiers zvrfyfuelgaugegetprops and zvrfyfuelgaugesetprops in drivers/fuelgauge/fuelgaugesyscallhandlers.c declared two variable-length arrays, union fuelgaugepropval kvalslen and fuelgaugepropt kpropslen, sized directly by the caller-supplied len argument. len is an...

CVE-2026-19669 Unbounded variable-length array in fuel gauge syscall verifiers allows kernel stack overflow from user mode

The user-mode syscall verifiers zvrfyfuelgaugegetprops and zvrfyfuelgaugesetprops in drivers/fuelgauge/fuelgaugesyscallhandlers.c declared two variable-length arrays, union fuelgaugepropval kvalslen and fuelgaugepropt kpropslen, sized directly by the caller-supplied len argument. len is an...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

A flaw was discovered in the exFAT driver of the Linux kernel. The vulnerability resides in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098774)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098774 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: bail out on template ct in get eval I noticed this issue while looking at a...

CVE-2026-12520 Stack buffer overflow and off-by-one writes in Zephyr HL7800 modem AT response handlers

The Sierra Wireless HL7800 cellular modem driver drivers/modem/vendorstandalone/hl7800.c, located at drivers/modem/hl7800.c in v4.4.0 and earlier parses AT responses with roughly twenty handlers that call netbuflinearizevalue, sizeofvalue, buf, 0, len into a 128-byte stack buffer and then write...

CVE-2026-63981

A flaw was found in the Linux kernel's net/sched: actmirred component. An unprivileged local user, by leveraging user namespaces to gain network administration capabilities, can create a specific network configuration that triggers an unbounded recursion. This recursion bypasses a depth limit...

Linux Distros Unpatched Vulnerability : CVE-2026-63981

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: Fix blockcast recursion bypass leading to stack overflow tcfmirredact...

CVE-2026-53267

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: bail out on template ct in get eval I noticed this issue while looking at a historic syzbot report 1. A rule like the one below is enough to trigger the bug: table ip t chain pre type filter hook prerouting...

PT-2026-51709

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the batman-adv module where the batadv frag skb buffer function is called by batadv batman skb recv upon receiving a BATADV UNICAST FRAG packet. After reassembling the...

CVE-2026-45250

The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the supplied list exceeds the capaci...

CVE-2026-45250 Stack buffer overflow via setcred(2)

The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the supplied list exceeds the capaci...

CVE-2026-45250

The setcred(2) system call in the FreeBSD kernel is vulnerable to a stack buffer overflow . The vulnerability occurs because the kernel copies a user-supplied list of supplementary groups into a fixed-size kernel stack buffer without validating its length before checking the caller's privilege le...

EUVD-2026-31252

The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the supplied list exceeds the capaci...

FreeBSD -- Stack buffer overflow via setcred(2)

Problem Description: The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the supplied li...