Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that originates from a null pointer dereference in the bpf,skmsg module skpsockskbingressenqueue...

Low: bcc

Issue Overview: If kernel headers need to be extracted, bcc will attempt to load them from a temporary directory. An unprivileged attacker could use this to force bcc to load compromised linux headers. Linux distributions which provide kernel headers by default are not affected by default...

SUSE CVE-2021-47563

In the Linux kernel, the following vulnerability has been resolved: ice: avoid bpfprog refcount underflow Ice driver has the routines for managing XDP resources that are shared between ndobpf op and VSI rebuild flow. The latter takes place for example when user changes queue count on an interface...

Oracle Linux 8 : systemd (ELSA-2024-3203)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2024-3203 advisory. - Oracle-Redhat Errata ELSA-2023:3837 CVE-2023-26604 OLERRATA-43629 Tenable has extracted the preceding description block directly from the Oracle Linux securit...

The vulnerability of the test_fentry() function in the tools/testing/selftests/bpf/prog_tests/tracing_struct.c module of the Linux kernel’s bpf component allows a hacker to induce a system failure.

The vulnerability of the testfentry function in the tools/testing/selftests/bpf/progtests/tracingstruct.c module of the bpf component of the Linux operating system is related to a memory leak. Exploiting this vulnerability could allow an attacker to cause a system failure...

Fedora: Security Advisory for rust-scx_rustland (FEDORA-2024-ce2936b568)

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...

Fedora: Security Advisory for rust-scx_rusty (FEDORA-2024-ce2936b568)

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...

[SECURITY] Fedora 40 Update: rust-scx_rustland-0.0.3-2.fc40

A BPF component dispatcher that implements the low level sched-ext functionalities and a user-space counterpart scheduler, written in Rust, that implements the actual scheduling policy. This is used within schedext, which is a Linux kernel feature which enables implementing kernel thread schedule...

[SECURITY] Fedora 40 Update: rust-scx_rusty-0.5.4-2.fc40

A multi-domain, BPF / user space hybrid scheduler used within schedext, which is a Linux kernel feature which enables implementing kernel thread schedulers in BPF and dynamically loading them. https://github.com/sched-ext/scx/tree/main...

Oracle Linux 9 : kernel (ELSA-2024-3306)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-3306 advisory. - netfilter: nftables: disallow anonymous set with timeout flag Phil Sutter RHEL-32971 RHEL-30082 CVE-2024-26642 - netfilter: nftables: mark set as dea...

SUSE CVE-2021-47376

In the Linux kernel, the following vulnerability has been resolved: bpf: Add oversize check before call kvcalloc Commit 7661809d493b "mm: don't allow oversized kvmalloc calls" add the oversize check. When the allocation is larger than what kmalloc supports, the following warning triggered: WARNIN...

UBUNTU-CVE-2021-47563

In the Linux kernel, the following vulnerability has been resolved: ice: avoid bpfprog refcount underflow Ice driver has the routines for managing XDP resources that are shared between ndobpf op and VSI rebuild flow. The latter takes place for example when user changes queue count on an interface...

SUSE CVE-2023-52828

In the Linux kernel, the following vulnerability has been resolved: bpf: Detect IP == ksym.end as part of BPF program Now that bpfthrow kfunc is the first such call instruction that has noreturn semantics within the verifier, this also kicks in dead code elimination in unprecedented ways. For one...

CVE-2021-47298

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix potential memory leak on unlikely error case If skblinearize is needed and fails we could leak a msg on the error handling. To fix ensure we kfree the msg block before returning error. Found during code review...

CVE-2023-52828

In the Linux kernel, the following vulnerability has been resolved: bpf: Detect IP == ksym.end as part of BPF program Now that bpfthrow kfunc is the first such call instruction that has noreturn semantics within the verifier, this also kicks in dead code elimination in unprecedented ways. For one...

CVE-2023-52793

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority for the following reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2021-47486

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix potential NULL dereference The bpfjitbinaryfree function requires a non-NULL argument. When the RISC-V BPF JIT fails to converge in NRJITITERATIONS steps, jitdata-header will be NULL, which triggers a NULL...

SUSE CVE-2021-47298

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix potential memory leak on unlikely error case If skblinearize is needed and fails we could leak a msg on the error handling. To fix ensure we kfree the msg block before returning error. Found during code review...

SUSE CVE-2021-47299

In the Linux kernel, the following vulnerability has been resolved: xdp, net: Fix use-after-free in bpfxdplinkrelease The problem occurs between devgetbyindex and devxdpattachlink. At this point, devxdpuninstall is called. Then xdp link will not be detached automatically when dev is released. But...

SUSE CVE-2021-47317

In the Linux kernel, the following vulnerability has been resolved: powerpc/bpf: Fix detecting BPF atomic instructions Commit 91c960b0056672 "bpf: Rename BPFXADD and prepare to encode other atomics in .imm" converted BPFXADD to BPFATOMIC and added a way to distinguish instructions based on the...