kernel: ipv6: mcast: extend RCU protection in igmp6_send()

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. Note that we no longer can use...

CLSA-2025-1754037789 Fix of 5 CVEs

Focal update: v5.4.291 upstream stable release LP: 2106002 // CVE-2025-21760 // CVE-url: https://ubuntu.com/security/CVE-2025-21760 - ndisc: extend RCU protection in ndiscsendskb Focal update: v5.4.291 upstream stable release LP: 2106002 // CVE-2025-21761 // CVE-url:...

kernel: ipv6: mcast: extend RCU protection in igmp6_send()

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. Note that we no longer can use...

Important: kernel-livepatch-6.1.140-154.222

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: schhfsc: Fix qlen accounting bug when using peek in hfscenqueue CVE-2025-38000 In the Linux kernel, the following vulnerability has been resolved: can: bcm: add missing rcu read protection for procfs content...

Important: kernel-livepatch-6.1.134-152.225

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: schhfsc: Fix qlen accounting bug when using peek in hfscenqueue CVE-2025-38000 In the Linux kernel, the following vulnerability has been resolved: can: bcm: add missing rcu read protection for procfs content...

SUSE CVE-2025-38460

In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix potential null-ptr-deref in toatmarpd. atmarpd is protected by RTNL since commit f3a0592b37b8 "ATM: clip causes unregister hang". However, it is not enough because toatmarpd is called without RTNL, especially...

kernel: net/sched: fix use-after-free in taprio_dev_notifier

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix use-after-free in tapriodevnotifier Since taprio’s tapriodevnotifier isn’t protected by an RCU read-side critical section, a race with advancesched can lead to a use-after-free. Adding rcureadlock inside...

CVE-2025-38460

In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix potential null-ptr-deref in toatmarpd. atmarpd is protected by RTNL since commit f3a0592b37b8 "ATM: clip causes unregister hang". However, it is not enough because toatmarpd is called without RTNL, especially...

PT-2025-33785

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The fib6 info uses dev function may rely on RCU without explicit protection, potentially leading to an infinite loop. This issue occurs because fib6 del route or fib6 add rt2node might...

kernel: ipv6: mcast: extend RCU protection in igmp6_send()

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. Note that we no longer can use...

AZL-64776 CVE-2025-38212 affecting package kernel for versions less than 6.6.96.1-1

In the Linux kernel, the following vulnerability has been resolved: ipc: fix to protect IPCS lookups using RCU syzbot reported that it discovered a use-after-free vulnerability, 0 0: https://lore.kernel.org/all/[email protected]/ idrforeach is protected by rwsem, but thi...

CVE-2025-38212

In the Linux kernel, the following vulnerability has been resolved: ipc: fix to protect IPCS lookups using RCU syzbot reported that it discovered a use-after-free vulnerability, 0 0: https://lore.kernel.org/all/[email protected]/ idrforeach is protected by rwsem, but thi...

AlmaLinux 9 : kernel (ALSA-2025:8333)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:8333 advisory. kernel: Use after Free in grusetcontextoption leading to kernel panic CVE-2022-3424 kernel: ndisc: use RCU protection in ndiscallocskb CVE-2025-21764...

CVE-2025-38087 net/sched: fix use-after-free in taprio_dev_notifier

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix use-after-free in tapriodevnotifier Since taprio’s tapriodevnotifier isn’t protected by an RCU read-side critical section, a race with advancesched can lead to a use-after-free. Adding rcureadlock inside...

Oracle Linux 8 : kernel (ELSA-2025-9580)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-9580 advisory. - ndisc: use RCU protection in ndiscallocskb Xin Long RHEL-89535 CVE-2025-21764 - ipv6: use RCU protection in ip6defaultadvmss Xin Long RHEL-89535...

kernel: ndisc: use RCU protection in ndisc_alloc_skb()

A vulnerability was found in the Linux kernel's IPv6 Neighbor Discovery NDISC subsystem, which manages network neighbor information. The issue arises from improper synchronization mechanisms when allocating socket buffers skbuff in the ndiscallocskb function. Specifically, the function can be...

kernel security update

4.18.0-553.58.110.OL8 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and...

Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: cifs: fix double free race when mount fails in cifsgetroot CVE-2022-48919 kernel: security/keys: fix slab-out-of-bounds in keytaskpermission CVE-2024-50301 kernel: idpf: fix idpfvccoreini...

RHEL 9 : kernel (RHSA-2025:9491)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:9491 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: ndisc: use RCU protection in...

Linux kernel 安全漏洞

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 stems from inadequate RCU protection and could lead to read after release...