ROOT-OS-UBUNTU-2404-CVE-2025-21858 CVE-2025-21858 in rootio-linux - Patched by Root

Root has patched CVE-2025-21858 in the rootio-linux package for Root:Ubuntu:24.04. Multiple fixed versions available...

Critical: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability...

RHEL 8 : kernel-rt (RHSA-2026:25120)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:25120 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

AlmaLinux 8 : kernel-rt (ALSA-2026:25120)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:25120 advisory. kernel: geneve: Fix use-after-free in genevefinddev. CVE-2025-21858 kernel: smc: Fix use-after-free in tcpwritetimerhandler CVE-2023-53781 kernel: nbd:...

Oracle Linux 8 : kernel (ELSA-2026-23258)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-23258 advisory. - smb: client: reject userspace cifs.spnego descriptions Paulo Alcantara RHEL-178938 CVE-2026-46243 - smb: client: fix OOB reads parsing symlink error response...

EulerOS 2.0 SP10 : kernel (EulerOS-SA-2025-1777)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : drm/plane: Move range check for formatcount earlierCVE-2021-47659 traceeventshist: add check for return value of 'createhistfield'CVE-2023-53005...

CVE-2025-21858 affecting package kernel for versions less than 5.15.179.1-1

CVE-2025-21858 affecting package kernel for versions less than 5.15.179.1-1. A patched version of the package is available...

Amazon Linux AMI : kernel (ALAS-2025-1973)

The version of kernel installed on the remote host is prior to 4.14.355-196.639. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2025-1973 advisory. A use-after-free flaw was found in btrfssearchslot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This flaw allow...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: nbd: Fix NULL pointer in flushworkqueue CVE-2021-46981 A use-after-free flaw was found in btrfssearchslot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This flaw allows an attacker to crash the system and...

Amazon Linux 2 : kernel (ALAS-2025-2843)

The version of kernel installed on the remote host is prior to 4.14.355-276.639. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2843 advisory. In the Linux kernel, the following vulnerability has been resolved: nbd: Fix NULL pointer in flushworkqueue...

Important: kernel

Issue Overview: A use-after-free flaw was found in btrfssearchslot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This flaw allows an attacker to crash the system and possibly cause a kernel information lea CVE-2023-1611 nftables out-of-bounds read in nfosfmatchone CVE-2023-39189 In the Linux...

CVE-2025-21858 affecting package kernel for versions less than 6.6.82.1-1

CVE-2025-21858 affecting package kernel for versions less than 6.6.82.1-1. An upgraded version of the package is available that resolves this issue...

CVE-2025-21858

A use-after-free vulnerability exists in the Linux kernel. When devnet is dismantled, the geneveexitbatchrtnl function calls unregisternetdevicequeue for each device in the network namespace. Later, when the device is freed, it is still linked to the backend UDP socket in the network namespace...

AZL-58515 CVE-2025-21858 affecting package kernel for versions less than 6.6.82.1-1

In the Linux kernel, the following vulnerability has been resolved: geneve: Fix use-after-free in genevefinddev. syzkaller reported a use-after-free in genevefinddev 0 without repro. geneveconfigure links struct genevedev.next to netgenericnet, genevenetid-genevelist. The net here could differ fr...

CVE-2025-21858 geneve: Fix use-after-free in geneve_find_dev().

In the Linux kernel, the following vulnerability has been resolved: geneve: Fix use-after-free in genevefinddev. syzkaller reported a use-after-free in genevefinddev 0 without repro. geneveconfigure links struct genevedev.next to netgenericnet, genevenetid-genevelist. The net here could differ fr...

CVE-2025-21858

In the Linux kernel, the following vulnerability has been resolved: geneve: Fix use-after-free in genevefinddev. syzkaller reported a use-after-free in genevefinddev 0 without repro. geneveconfigure links struct genevedev.next to netgenericnet, genevenetid-genevelist. The net here could differ fr...

CVE-2025-21858

In the Linux kernel, CVE-2025-21858 is a use-after-free in geneve_find_dev() caused by a stale geneve_dev.next linkage when nets disappear, leading to a use-after-free when creating a new geneve device in the same netns. The fix, per the description, is to call geneve_dellink() (instead of the pr...