An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es) :

* A race condition was found in the Linux kernel, present since v3.14-rc1 through v4.12. The race happens between threads of inotify_handle_event() and vfs_rename() while running the rename operation against the same file. As a result of the race the next slab data or the slab's free list pointer can be corrupted with attacker-controlled data. (CVE-2017-7533, Important)

Red Hat would like to thank Leilei Lin (Alibaba Group), Fan Wu (The University of Hong Kong), and Shixiong Zhao (The University of Hong Kong) for reporting this issue.

Bug Fix(es) :

* Previously, direct I/O read operations going past EOF returned an invalid error number, instead of reading 0 bytes and returning success, if these operations were in same XFS block with EOF.
Consequently, creating multiple VMs from a Red Hat Enterprise Linux 7.4 template caused all the VMs to become unresponsive in the 'Image Locked' state. This update fixes the direct I/O feature of the file system, and VMs created from a Red Hat Enterprise Linux 7.4 template now work as expected. (BZ#1475669)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Race condition in the fsnotify implementation in the Linux kernel through 4.12.4 allows local users to     gain privileges or cause a denial of service (memory corruption) via a crafted application that leverages     simultaneous execution of the inotify_handle_event and vfs_rename functions. (CVE-2017-7533)

Note that Nessus relies on the presence of the package as reported by the vendor.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003451 advisory.

    Race condition in the fsnotify implementation in the Linux kernel through 4.12.4 allows local users to     gain privileges or cause a denial of service (memory corruption) via a crafted application that leverages     simultaneous execution of the inotify_handle_event and vfs_rename functions.

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-2026-001107 advisory.

    Race condition in the fsnotify implementation in the Linux kernel through 4.12.4 allows local users to     gain privileges or cause a denial of service (memory corruption) via a crafted application that leverages     simultaneous execution of the inotify_handle_event and vfs_rename functions.

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.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

  - CVE-2017-7346     Li Qiang discovered that the DRM driver for VMware     virtual GPUs does not properly check user-controlled     values in the vmw_surface_define_ioctl() functions for     upper limits. A local user can take advantage of this     flaw to cause a denial of service.

  - CVE-2017-7482     Shi Lei discovered that RxRPC Kerberos 5 ticket handling     code does not properly verify metadata, leading to     information disclosure, denial of service or potentially     execution of arbitrary code.

  - CVE-2017-7533     Fan Wu and Shixiong Zhao discovered a race condition     between inotify events and VFS rename operations     allowing an unprivileged local attacker to cause a     denial of service or escalate privileges.

  - CVE-2017-7541     A buffer overflow flaw in the Broadcom IEEE802.11n PCIe     SoftMAC WLAN driver could allow a local user to cause     kernel memory corruption, leading to a denial of service     or potentially privilege escalation.

  - CVE-2017-7542     An integer overflow vulnerability in the     ip6_find_1stfragopt() function was found allowing a     local attacker with privileges to open raw sockets to     cause a denial of service.

  - CVE-2017-9605     Murray McAllister discovered that the DRM driver for     VMware virtual GPUs does not properly initialize memory,     potentially allowing a local attacker to obtain     sensitive information from uninitialized kernel memory     via a crafted ioctl call.

  - CVE-2017-10810     Li Qiang discovered a memory leak flaw within the VirtIO     GPU driver resulting in denial of service (memory     consumption).

  - CVE-2017-10911 / XSA-216     Anthony Perard of Citrix discovered an information leak     flaw in Xen blkif response handling, allowing a     malicious unprivileged guest to obtain sensitive     information from the host or other guests.

  - CVE-2017-11176     It was discovered that the mq_notify() function does not     set the sock pointer to NULL upon entry into the retry     logic. An attacker can take advantage of this flaw     during a user-space close of a Netlink socket to cause a     denial of service or potentially cause other impact.

  - CVE-2017-1000365     It was discovered that argument and environment pointers     are not taken properly into account to the imposed size     restrictions on arguments and environmental strings     passed through RLIMIT_STACK/RLIMIT_INFINITY. A local     attacker can take advantage of this flaw in conjunction     with other flaws to execute arbitrary code.

The 4.12.8 stable kernel update contains a number of important fixes across the tree.

----

The 4.12.5 kernel rebase contains new features and many bug fixes across the tree.

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

The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.82 to receive various security and bugfixes. The following security bugs were fixed :

  - CVE-2017-1000111: Fixed a race condition in net-packet     code that could be exploited to cause out-of-bounds     memory access (bsc#1052365).

  - CVE-2017-1000112: Fixed a race condition in net-packet     code that could have been exploited by unprivileged     users to gain root access. (bsc#1052311).

  - CVE-2017-8831: The saa7164_bus_get function in     drivers/media/pci/saa7164/saa7164-bus.c in the Linux     kernel allowed local users to cause a denial of service     (out-of-bounds array access) or possibly have     unspecified other impact by changing a certain     sequence-number value, aka a 'double fetch'     vulnerability (bnc#1037994).

  - CVE-2017-7542: The ip6_find_1stfragopt function in     net/ipv6/output_core.c in the Linux kernel allowed local     users to cause a denial of service (integer overflow and     infinite loop) by leveraging the ability to open a raw     socket (bnc#1049882).

  - CVE-2017-11473: Buffer overflow in the     mp_override_legacy_irq() function in     arch/x86/kernel/acpi/boot.c in the Linux kernel allowed     local users to gain privileges via a crafted ACPI table     (bnc#1049603).

  - CVE-2017-7533: Race condition in the fsnotify     implementation in the Linux kernel allowed local users     to gain privileges or cause a denial of service (memory     corruption) via a crafted application that leverages     simultaneous execution of the inotify_handle_event and     vfs_rename functions (bnc#1049483 bnc#1050677).

  - CVE-2017-7541: The brcmf_cfg80211_mgmt_tx function in     drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg8021     1.c in the Linux kernel allowed local users to cause a     denial of service (buffer overflow and system crash) or     possibly gain privileges via a crafted NL80211_CMD_FRAME     Netlink packet (bnc#1049645).

  - CVE-2017-10810: Memory leak in the     virtio_gpu_object_create function in     drivers/gpu/drm/virtio/virtgpu_object.c in the Linux     kernel allowed attackers to cause a denial of service     (memory consumption) by triggering object-initialization     failures (bnc#1047277).

The update package also includes non-security fixes. See advisory for details.

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

ID	Name	Product	Family	Published	Updated	Severity
102766	CentOS 7 : kernel (CESA-2017:2473)	Nessus	CentOS Local Security Checks	8/25/2017	1/4/2021	high
221530	Linux Distros Unpatched Vulnerability : CVE-2017-7533	Nessus	Misc.	3/4/2025	7/17/2026	high
287905	Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003451)	Nessus	Unity Linux Local Security Checks	1/15/2026	1/16/2026	high
291229	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001107)	Nessus	Unity Linux Local Security Checks	1/16/2026	1/16/2026	high
102211	Debian DSA-3927-1 : linux - security update (Stack Clash)	Nessus	Debian Local Security Checks	8/7/2017	12/4/2025	high
102718	Fedora 25 : kernel (2017-73f71456d7)	Nessus	Fedora Local Security Checks	8/24/2017	11/26/2025	high
102838	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:2286-1)	Nessus	SuSE Local Security Checks	8/30/2017	11/25/2025	high

Detections

Analytics

Plugins Search

high

high

high

high

high

high

high