kernel: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match()

A flaw was found in the Linux kernel’s SMC Shared Memory Communication module: in smcclcprfxmatch, the function is called from smclistenwork without proper RCU or RTNL protection. The code previously used skdstgetsk-dev, which can lead to a use-after-free UAF condition if the sk’s destination is...

SUSE-SU-2026:20498-1 Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2023-54013: interconnect: Fix locking for runpm vs reclaim bsc1256280. - CVE-2025-38321: smb: Log an error when closeallcacheddirs fails bsc1246328. ...

PT-2026-30187

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the NFS daemon NFSD related to the handling of sub-object cleanup during export release. Specifically, the svc export put function calls path put...

CLSA-2026-1771239384 kernel: Fix of 75 CVEs

net/sched: Make cakeenqueue return NETXMITCN when past bufferlimit CVE-2025-39766 - NFSD: Avoid calling OPDESC with ops-opnum == OPILLEGAL CVE-2023-53680 - scsi: target: iscsi: Fix buffer overflow in liotargetnaclinfoshow CVE-2023-53676 - KVM: x86: use arrayindexnospec with indices that come from...

RockyLinux 8 : kernel (RLSA-2026:2264)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:2264 advisory. kernel: vsock/vmci: Clear the vmci transport packet properly when initializing it CVE-2025-38403 kernel: net: use dstdevrcu in sksetupcaps CVE-2025-40170...

CVE-2026-23138

In the Linux kernel, the following vulnerability has been resolved: tracing: Add recursion protection in kernel stack trace recording A bug was reported about an infinite recursion caused by tracing the rcu events with the kernel stack trace trigger enabled. The stack trace code called back into...

CVE-2026-23169

CVE-2026-23169 is a Linux kernel vulnerability where a race in mptcp_pm_nl_flush_addrs_doit() could crash the kernel. Root cause: list_splice_init() is not RCURED and cannot be called while holding pernet->lock spinlock; list_splice_init_rcu() was misusefully invoked in that context. The issue...

CVE-2026-23169 mptcp: fix race in mptcp_pm_nl_flush_addrs_doit()

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix race in mptcppmnlflushaddrsdoit syzbot and Eulgyu Kim reported crashes in mptcppmnlgetlocalid and/or mptcppmnlisbackup Root cause is listspliceinit in mptcppmnlflushaddrsdoit which is not RCU ready. listspliceinitrcu c...

CVE-2026-23169 mptcp: fix race in mptcp_pm_nl_flush_addrs_doit()

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix race in mptcppmnlflushaddrsdoit syzbot and Eulgyu Kim reported crashes in mptcppmnlgetlocalid and/or mptcppmnlisbackup Root cause is listspliceinit in mptcppmnlflushaddrsdoit which is not RCU ready. listspliceinitrcu c...

Linux Distros Unpatched Vulnerability : CVE-2026-23169

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mptcp: fix race in mptcppmnlflushaddrsdoit syzbot and Eulgyu Kim reported crashes in mptcppmnlgetlocalid and/or mptcppmnlisbackup Root cause is listspliceinit i...

MiracleLinux 8 : kernel-4.18.0-553.104.1.el8_10 (AXSA:2026-172:10)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-172:10 advisory. kernel: vsock/vmci: Clear the vmci transport packet properly when initializing it CVE-2025-38403 kernel: net: use dstdevrcu in sksetupcaps...

kernel: ipv6: use RCU in ip6_output()

A use-after-free flaw was found in ip6finishoutput2 in net/ipv6/ip6output.c in ipv6 access. This flaw could allow an attacker to crash the system at device disconnect. This vulnerability could even lead to a kernel information leak problem...

kernel: net: use dst_dev_rcu() in sk_setup_caps()

In the Linux kernel, the following vulnerability has been resolved: net: use dstdevrcu in sksetupcaps Use RCU to protect accesses to dst-dev from sksetupcaps and skdstgsomaxsize. Also use dstdevrcu in ip6dstmtumaybeforward, and ipdstmtumaybeforward. ip4dsthoplimit can use dstdevnetrcu...

Moderate: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: vsock/vmci: Clear the vmci transport packet properly when initializing it CVE-2025-38403 kernel: net: use dstdevrcu in sksetupcaps...

AlmaLinux 8 : kernel-rt (ALSA-2026:2378)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:2378 advisory. kernel: vsock/vmci: Clear the vmci transport packet properly when initializing it CVE-2025-38403 kernel: net: use dstdevrcu in sksetupcaps CVE-2025-40170...

Oracle Linux 8 : kernel (ELSA-2026-2264)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-2264 advisory. - ext4: fix use-after-free in ext4orphancleanup CKI Backport Bot RHEL-136000 CVE-2022-50673 - ext4: lost matching-pair of trace in ext4truncate CKI...

kernel: net: use dst_dev_rcu() in sk_setup_caps()

In the Linux kernel, the following vulnerability has been resolved: net: use dstdevrcu in sksetupcaps Use RCU to protect accesses to dst-dev from sksetupcaps and skdstgsomaxsize. Also use dstdevrcu in ip6dstmtumaybeforward, and ipdstmtumaybeforward. ip4dsthoplimit can use dstdevnetrcu...

ALSA-2026:2264 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: vsock/vmci: Clear the vmci transport packet properly when initializing it CVE-2025-38403 kernel: net: use dstdevrcu in sksetupcaps CVE-2025-40170 kernel: ipv6: use RCU in ip6xmit...

kernel security update

An update is available for kernel. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux operating...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: tcpmetrics: use dstdevnetrcu CVE-2025-40075 Affected Packages: kernel Note: This advisory is applicable to Amazon Linux 2 - Kernel-5.15 Extra. Visit this page to learn more about Amazon Linux 2 AL2 Extras and this...