The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather operations, which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or possibly have unspecified other impact by triggering a copy_to_user call within a certain time window.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001254 advisory.

    The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather     operations, which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or     possibly have unspecified other impact by triggering a copy_to_user call within a certain time window.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003231 advisory.

    The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather     operations, which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or     possibly have unspecified other impact by triggering a copy_to_user call within a certain time window.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002684 advisory.

    The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather     operations, which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or     possibly have unspecified other impact by triggering a copy_to_user call within a certain time window.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - The __oom_reap_task_mm function in mm/oom_kill.c in the     Linux kernel, before 4.14.4, mishandles gather     operations. This allows attackers to cause a denial of     service (TLB entry leak or use-after-free) or possibly     have unspecified other impact by triggering a     copy_to_user call within a certain time     window.(CVE-2017-18202i1/4%0

  - Buffer overflow in the qeth_snmp_command function in     drivers/s390/net/qeth_core_main.c in the Linux kernel     through 3.12.1 allows local users to cause a denial of     service or possibly have unspecified other impact via     an SNMP ioctl call with a length value that is     incompatible with the command-buffer     size.(CVE-2013-6381i1/4%0

  - It was discovered that the Linux kernel since 3.6-rc1     with 'net.ipv4.tcp_fastopen' set to 1 can hit BUG()     statement in tcp_collapse() function after making a     number of certain syscalls leading to a possible system     crash.(CVE-2016-8645i1/4%0

  - It was found that the Linux kernel's implementation of     vectored pipe read and write functionality did not take     into account the I/O vectors that were already     processed when retrying after a failed atomic access     operation, potentially resulting in memory corruption     due to an I/O vector array overrun. A local,     unprivileged user could use this flaw to crash the     system or, potentially, escalate their privileges on     the system.(CVE-2015-1805i1/4%0

  - The Linux kernel is vulnerable to an out-of-bounds read     in ext4/balloc.c:ext4_valid_block_bitmap() function. An     attacker could trick a legitimate user or a privileged     attacker could exploit this by mounting a crafted ext4     image to cause a crash.(CVE-2018-1093i1/4%0

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2018:2772 advisory.

    The kernel-alt packages provide the Linux kernel version 4.x.

    Security Fix(es):

    * kernel: Infoleak/use-after-free in __oom_reap_task_mm function in mm/oom_kill.c (CVE-2017-18202)

    For more details about the security issue(s), including the impact, a CVSS score, and other related     information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * Previously, on certain little-endian variants of IBM Power Systems, there was no sysfs     spec_store_bypass file. As a consequence, there was no way to indicate the Speculative Store Bypass     Disable (SSBD) mitigation status. This update adds infrastructure code into the kernel to create the     /sys/devices/system/cpu/vulnerabilities/* files. As a result, sysfs spec_store_bypass shows whether the     SSBD mitigation is disabled or enabled. (BZ#1602340)

    * Previously, the kernel architectures for IBM z Systems were missing support to display the status of the     Spectre v2 mitigations. As a consequence, the /sys/devices/system/cpu/vulnerabilities/spectre_v2 file did     not exist. With this update, the kernel now shows the status in the above mentioned file and as a result,     the file now reports either Vulnerable or Mitigation: execute trampolines message. (BZ#1619667)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
291255	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001254)	Nessus	Unity Linux Local Security Checks	high
286958	Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003231)	Nessus	Unity Linux Local Security Checks	high
284840	Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002684)	Nessus	Unity Linux Local Security Checks	high
124814	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1490)	Nessus	Huawei Local Security Checks	high
117779	RHEL 7 : kernel-alt (RHSA-2018:2772)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2017-18202

high

Tenable Plugins

high

high

high

high

high