kernel: ksm: use range-walk function to jump over holes in scan_get_next_rmap_item

A resource exhaustion vulnerability was found in the Kernel Same-page Merging KSM subsystem of the Linux kernel. When scanning processes with large sparse virtual memory mappings e.g., 32 TiB with one mapped page, ksmd inefficiently walks every address rather than skipping unmapped holes. This...

RockyLinux 9 : kernel (RLSA-2026:59723)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:59723 advisory. kernel: ksm: use range-walk function to jump over holes in scangetnextrmapitem CVE-2025-68211 kernel: ip6tunnel: use skbvlaninetprepare in ip6tnlrcv...

kernel: ksm: use range-walk function to jump over holes in scan_get_next_rmap_item

A resource exhaustion vulnerability was found in the Kernel Same-page Merging KSM subsystem of the Linux kernel. When scanning processes with large sparse virtual memory mappings e.g., 32 TiB with one mapped page, ksmd inefficiently walks every address rather than skipping unmapped holes. This...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: mm/ksm: fixed the behavior of flag-dropping in ksmmadvise. Syzkaller discovered the following crash: kernel BUG 44.607039 ------------ cut here ------------ 44.607422 Kernel BUG at mm/userfaultfd.c:2067! 44.608148 Oops: invali...

The vulnerability of the `scan_get_next_rmap_item()` function in the mm/ksm.c component of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the scangetnextrmapitem function in the mm/ksm.c component of the Linux operating system is related to incorrect data input used as a condition for loop execution. Exploiting this vulnerability can allow an attacker to cause a service failure...

Oracle Linux 10 : kernel (ELSA-2026-49211)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-49211 advisory. - net/sched: clsapi: Handle TCACTCONSUMED in tcfqeventhandle CKI Backport Bot RHEL-214082 CVE-2026-64530 - ksm: use range-walk function to jump over...

kernel security, bug fix, and enhancement 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...

RockyLinux 10 : kernel (RLSA-2026:49211)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:49211 advisory. kernel: ksm: use range-walk function to jump over holes in scangetnextrmapitem CVE-2025-68211 kernel: isofs: validate Rock Ridge CE continuation extent...

EulerOS Virtualization 2.13.1 : kernel (EulerOS-SA-2026-2132)

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : nvme: nvme-fc: Ensure -ioerrwork is cancelled in nvmefcdeletectrlCVE-2025-40261 cifs: fix session state check in reconnect to avoid...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: fork: Invoke khugepaged and ksm hooks only if there is no error. There is no reason to invoke these hooks early on an MM that is in an incomplete state. The change in commit d24062914837 “fork: use mtdup to duplicate the maple tr...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/ksm: fixed a race condition involving VMA iteration and mmstruct teardown. The exitmmap function will tear down the VMAs and the maple tree, provided that the mmaplock is held in write mode. Ensure that the maple tree remains...

Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50171)

The remote Oracle Linux 8 / 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-50171 advisory. - macvlan: fix error recovery in macvlancommonnewlink Eric Dumazet Orabug: 39057366 CVE-2026-23209 - netfilter: nftables: fix inverted genmask check in...

EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1280)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : nvme: nvme-fc: Ensure -ioerrwork is cancelled in nvmefcdeletectrlCVE-2025-40261 cifs: fix session state check in reconnect to avoid use-after-free...

EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1244)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : nvme: nvme-fc: Ensure -ioerrwork is cancelled in nvmefcdeletectrlCVE-2025-40261 cifs: fix session state check in reconnect to avoid use-after-free...

SUSE-SU-2026:20555-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 and SL MIxro 6.2 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-40147: blk-throttle: fix access race during throttle policy activation bsc1253344. - CVE-2025-40257: mptcp: fix a race in mptcppmdeladdtimer...

SUSE-SU-2026:20615-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 and SL MIxro 6.2 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-40147: blk-throttle: fix access race during throttle policy activation bsc1253344. - CVE-2025-40257: mptcp: fix a race in mptcppmdeladdtimer...

SUSE-SU-2026:20570-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 and SL MIxro 6.2 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-40147: blk-throttle: fix access race during throttle policy activation bsc1253344. - CVE-2025-40257: mptcp: fix a race in mptcppmdeladdtimer...

SUSE-SU-2026:20496-1 Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and 6.1 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2022-50253: bpf: make sure skb-len != 0 when redirecting to a tunneling device bsc1249912. - CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow ...

SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:0029-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0029-1 advisory. The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes. The following security bugs were fixed: -...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: reject duplicate device on updates CVE-2025-38678 In the Linux kernel, the following vulnerability has been resolved: mm/ksm: fix flag-dropping behavior in ksmmadvise CVE-2025-40040 In the Lin...