kernel: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc

A use-after-free vulnerability has been identified in the Linux kernel's HFSC Hierarchical Fair Service Curve queuing discipline when it is configured with NETEM Network Emulation as a child. This flaw can lead to a kernel panic or crash due to incorrect assumptions about the queue state...

kernel: net_sched: hfsc: Address reentrant enqueue adding class to eltree twice

A use-after-free UAF vulnerability, which also presents a potential infinite loop condition, has been resolved in the Linux kernel. This flaw affects the HFSC Hierarchical Fair Service Curve queuing discipline when it is used in conjunction with NETEM Network Emulation. A malicious user could...

Analysis of Post-Quantum Cryptography in User Equipment in 5G and Beyond

The advent of quantum computing threatens the security of classical public-key cryptographic systems, prompting the transition to post-quantum cryptography PQC. While PQC has been analyzed in theory, its performance in practical wireless communication environments remains underexplored. This pape...

net_sched: drr: Fix double list add in class with netem as child qdisc

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SUSE-SU-2025:2264-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2021-47557: net/sched: schets: do not peek at classes beyond 'nbands' bsc1207361 bsc1225468. - CVE-2021-47595: net/sched: schets: do not remove idle classes from...

DEBIAN-CVE-2025-38001

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Address reentrant enqueue adding class to eltree twice Savino says: "We are writing to report that this recent patch 141d34391abbb315d68556b7c67ad97885407547 1 can be bypassed, and a UAF can still occur when HFSC ...

Security update for kernel-livepatch-MICRO-6-0_Update_2

This update for kernel-livepatch-MICRO-6-0Update2 fixes the following issues: CVE-2024-57882: Fixed mptcp: fix TCP options overflow. bsc1235916 CVE-2024-46818: Fixed drm/amd/display: check gpioid before used as array index bsc1231204 CVE-2024-46815: Fixed drm/amd/display: check numvalidsets befor...

SUSE-SU-2025:20188-1 Security update for kernel-livepatch-MICRO-6-0_Update_2

This update for kernel-livepatch-MICRO-6-0Update2 fixes the following issues: - CVE-2024-57882: Fixed mptcp: fix TCP options overflow. bsc1235916 - CVE-2024-46818: Fixed drm/amd/display: check gpioid before used as array index bsc1231204 - CVE-2024-46815: Fixed drm/amd/display: check numvalidsets...

SUSE-SU-2025:20189-1 Security update for kernel-livepatch-MICRO-6-0_Update_3

This update for kernel-livepatch-MICRO-6-0Update3 fixes the following issues: - CVE-2024-57882: Fixed mptcp: fix TCP options overflow. bsc1235916 - CVE-2024-56648: Fixed net: hsr: avoid potential out-of-bound access in fillframeinfo bsc1235452 - CVE-2024-50302: Fixed HID: core: zero-initialize th...

QEMU: net: Infinite loop in loopback mode may lead to stack overflow

A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS...

Cisco Packet Tracer for Windows DLL Injection Vulnerability

Cisco Packet Tracer is a cross-platform visual emulation tool that allows users to create network topologies and emulate computer networks. The vulnerability can be exploited to execute arbitrary code on the affected system with the privileges of another user account by inserting a configuration...

DEBIAN-CVE-2021-3416

A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU...

QEMU: slirp: information leakage in tcp_emu() due to uninitialized stack variables

tcpemu in slirp/tcpsubr.c aka slirp/src/tcpsubr.c in QEMU 3.0.0 uses uninitialized data in an snprintf call, leading to Information disclosure...

QEMU Buffer Overflow Vulnerability (CNVD-2019-03583)

QEMU aka Quick Emulator is a set of simulation processor software developed by French programmer Fabrice Bellard. The software is fast and cross-platform. A buffer overflow vulnerability exists in the 'tcpemu' routine of slirp in QEMU. An attacker can exploit this vulnerability to cause the QEMU...

FakeNet-NG: Next Generation Dynamic Network Analysis Tool

As a reverse engineer on the FLARE FireEye Labs Advanced Reverse Engineering team, I regularly perform basic dynamic analysis of malware samples. The goal is to quickly observe runtime characteristics by running binaries in a safe environment. One important task during dynamic analysis is to...

FakeNet-NG: Next Generation Dynamic Network Analysis Tool

As a reverse engineer on the FLARE FireEye Labs Advanced Reverse Engineering team, I regularly perform basic dynamic analysis of malware samples. The goal is to quickly observe runtime characteristics by running binaries in a safe environment. One important task during dynamic analysis is to...

openSUSE Security Update : kvm (kvm-412)

Rogue VNC clients could make the built in VNC server of kvm run into an infinite loop CVE-2008-2382 An off-by-one bug limited the length of VNC passwords to seven instead of eight CVE-2008-5714 Virtualized guests could potentially execute code on the host by triggering a buffer overflow in the...

openSUSE Security Update : kvm (kvm-412)

Rogue VNC clients could make the built in VNC server of kvm run into an infinite loop CVE-2008-2382 An off-by-one bug limited the length of VNC passwords to seven instead of eight CVE-2008-5714 Virtualized guests could potentially execute code on the host by triggering a buffer overflow in the...