kernel: bpf: reject unhashed sockets in bpf_sk_assign

A reference counting flaw was found in the Linux kernel's BPF socket assignment helper when handling unhashed UDP sockets. When a BPF program assigns an unhashed UDP socket to a packet, the function increments the socket reference count assuming SOCKRCUFREE isn't set. However, subsequent bind or...

kernel: bpf: cpumap: Fix memory leak in cpu_map_update_elem

In the Linux kernel, the following vulnerability has been resolved: bpf: cpumap: Fix memory leak in cpumapupdateelem Syzkaller reported a memory leak as follows: BUG: memory leak unreferenced object 0xff110001198ef748 size 192: comm "syz-executor.3", pid 17672, jiffies 4298118891 age 9.906s hex...

kernel: bpf, cpumap: Make sure kthread is running before map update returns

A race condition was found in the Linux kernel's BPF cpumap implementation in the kthread lifecycle management. A local user can trigger this issue by running XDP redirect operations when the per-CPU kthread is stopped prematurely before processing queued frames, causing the cleanup code to find ...

Medium: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: bpf: Defer the free of inner map when necessary When updating or deleting an inner map in map array or map htab, the map may still be accessed by non-sleepable program or sleepable program. However bpfmapfdputptr...

Amazon Linux 2 : kernel (ALASKERNEL-5.10-2024-054)

The version of kernel installed on the remote host is prior to 5.10.214-202.855. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2024-054 advisory. 2024-08-27: CVE-2024-26863 was added to this advisory. 2024-08-27: CVE-2023-52656 was added to this...

container-tools:4.0 security update

buildah 1.24.7-1 - bump to v1.24.7 - Resolves: RHEL-26767 cockpit-podman conmon containernetworking-plugins containers-common container-selinux criu crun fuse-overlayfs libslirp oci-seccomp-bpf-hook podman python-podman runc 1.1.12-1.0.1 - rebuild with golang 1.20.12 for CVE-2023-39326 skopeo...

container-tools:ol8 security and bug fix update

aardvark-dns buildah 1:1.31.5-1 - update to the latest content of https://github.com/containers/buildah/tree/release-1.31 https://github.com/containers/buildah/commit/5fd539c - Resolves: RHEL-26772 1:1.31.3-3 - Make the module buildable again - Resolves: RHEL-16299 1:1.31.3-2 - Rebuild with golan...

Ubuntu: Security Advisory (USN-6743-3)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-6743-3: Linux kernel (Azure) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - JFS file system; - BPF subsystem; - Netfilter; CVE-2023-52600, CVE-2024-26589, CVE-2024-26591, CVE-2024-26581,...

USN-6743-3 linux-azure-6.5 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - JFS file system; - BPF subsystem; - Netfilter; CVE-2023-52600, CVE-2024-26589, CVE-2024-26591, CVE-2024-26581,...

Ubuntu: Security Advisory (USN-6743-2)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE CVE-2024-26884

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix hashtab overflow check on 32-bit arches The hashtab code relies on rounduppowoftwo to compute the number of hash buckets, and contains an overflow check by checking if the resulting value is 0. However, on 32-bit arches,...

SUSE CVE-2024-26885

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix DEVMAPHASH overflow check on 32-bit arches The devmap code allocates a number hash buckets equal to the next power of two of the maxentries value provided when creating the map. When rounding up to the next power of two,...

Ubuntu 22.04 LTS : Linux kernel (Low Latency) vulnerabilities (USN-6743-2)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6743-2 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

USN-6743-2: Linux kernel (Low Latency) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - JFS file system; - BPF subsystem; - Netfilter; CVE-2023-52600, CVE-2024-26589, CVE-2024-26591, CVE-2024-26581,...

USN-6743-2 linux-lowlatency-hwe-6.5 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - JFS file system; - BPF subsystem; - Netfilter; CVE-2023-52600, CVE-2024-26589, CVE-2024-26591, CVE-2024-26581,...

Ubuntu: Security Advisory (USN-6741-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-6743-1: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - JFS file system; - BPF subsystem; - Netfilter; CVE-2023-52600, CVE-2024-26589, CVE-2024-26591, CVE-2024-26581,...

USN-6743-1 linux, linux-aws, linux-aws-6.5, linux-azure, linux-gcp, linux-gcp-6.5, linux-hwe-6.5, linux-laptop, linux-lowlatency, linux-nvidia-6.5, linux-oem-6.5, linux-oracle, linux-oracle-6.5, linux-raspi, linux-starfive, linux-starfive-6.5 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - JFS file system; - BPF subsystem; - Netfilter; CVE-2023-52600, CVE-2024-26589, CVE-2024-26591, CVE-2024-26581,...

USN-6741-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-xilinx-zynqmp vulnerabilities

Daniele Antonioli discovered that the Secure Simple Pairing and Secure Connections pairing in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials. A physically proximate attacker placed between two Bluetooth devices could use this to...