CVE-2026-93100

A flaw was found in the Linux kernel's resctrl filesystem. A race condition exists in the rdtgroupknput function during the handling of rdtgroup structure reference counts. This allows a local attacker to trigger a use-after-free vulnerability, where memory is accessed after it has been...

CVE-2026-93099

A flaw was found in the Linux kernel's fs/resctrl component. This use-after-free UAF vulnerability occurs when worker threads attempt to access memory that has already been released during CPU hotplug operations. A local attacker could potentially exploit this flaw to cause a system crash, leadin...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Fixed the issue of double-freeing the RMID of a pseudo-locked region’s free list. The RMID of a pseudo-locked group is freed when the group is created. When unmounting, rmdirallsub RMID, resulting in a double-free of...

CVE-2026-90270

A flaw was found in the armmpam driver of the Linux kernel. A local user could trigger a use-after-free vulnerability by unbinding a Memory System Component MSC and then attempting to read the schemata file in the resctrl filesystem. This could lead to system instability or a denial of service...

SUSE CVE-2026-90270

In the Linux kernel, the following vulnerability has been resolved: armmpam: Disable driver unbind to avoid UAF When a user unbinds an MSC and that MSC is the only MSC left for a component then the corresponding mpamcomponent will be freed. If the user then goes on to read the schemata file in th...

SUSE CVE-2026-93099

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Fix UAF from worker threads when domains are removed The mbmhandleoverflow and cqmhandlelimbo workers read event counters and may sleep while doing so. They are scheduled via delayedwork embedded in struct...

SUSE CVE-2026-93100

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Prevent use-after-free in rdtgroupknput A struct rdtgroup is reference counted via rdtgroup::waitcount. Callers that need the structure to remain valid across a sleep while waiting on acquiring rdtgroupmutex take a...

Linux Distros Unpatched Vulnerability : CVE-2026-93099

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fs/resctrl: Fix UAF from worker threads when domains are removed The mbmhandleoverflow and cqmhandlelimbo workers read event counters and may sleep while doing...

Linux Distros Unpatched Vulnerability : CVE-2026-93100

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fs/resctrl: Prevent use-after-free in rdtgroupknput A struct rdtgroup is reference counted via rdtgroup::waitcount. Callers that need the structure to remain...

DEBIAN-CVE-2026-93099

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Fix UAF from worker threads when domains are removed The mbmhandleoverflow and cqmhandlelimbo workers read event counters and may sleep while doing so. They are scheduled via delayedwork embedded in struct...

AZL-101933 CVE-2026-93099 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Fix UAF from worker threads when domains are removed The mbmhandleoverflow and cqmhandlelimbo workers read event counters and may sleep while doing so. They are scheduled via delayedwork embedded in struct...

DEBIAN-CVE-2026-93100

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Prevent use-after-free in rdtgroupknput A struct rdtgroup is reference counted via rdtgroup::waitcount. Callers that need the structure to remain valid across a sleep while waiting on acquiring rdtgroupmutex take a...

AZL-102354 CVE-2026-93100 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Prevent use-after-free in rdtgroupknput A struct rdtgroup is reference counted via rdtgroup::waitcount. Callers that need the structure to remain valid across a sleep while waiting on acquiring rdtgroupmutex take a...

CVE-2026-93099

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Fix UAF from worker threads when domains are removed The mbmhandleoverflow and cqmhandlelimbo workers read event counters and may sleep while doing so. They are scheduled via delayedwork embedded in struct...

DEBIAN-CVE-2026-90270

In the Linux kernel, the following vulnerability has been resolved: armmpam: Disable driver unbind to avoid UAF When a user unbinds an MSC and that MSC is the only MSC left for a component then the corresponding mpamcomponent will be freed. If the user then goes on to read the schemata file in th...

CVE-2026-90270

In the Linux kernel, the following vulnerability has been resolved: armmpam: Disable driver unbind to avoid UAF When a user unbinds an MSC and that MSC is the only MSC left for a component then the corresponding mpamcomponent will be freed. If the user then goes on to read the schemata file in th...

CVE-2026-93100 fs/resctrl: Prevent use-after-free in rdtgroup_kn_put()

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Prevent use-after-free in rdtgroupknput A struct rdtgroup is reference counted via rdtgroup::waitcount. Callers that need the structure to remain valid across a sleep while waiting on acquiring rdtgroupmutex take a...

EUVD-2026-82208

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Prevent use-after-free in rdtgroupknput A struct rdtgroup is reference counted via rdtgroup::waitcount. Callers that need the structure to remain valid across a sleep while waiting on acquiring rdtgroupmutex take a...

CVE-2026-93100 fs/resctrl: Prevent use-after-free in rdtgroup_kn_put()

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Prevent use-after-free in rdtgroupknput A struct rdtgroup is reference counted via rdtgroup::waitcount. Callers that need the structure to remain valid across a sleep while waiting on acquiring rdtgroupmutex take a...

CVE-2026-93100

CVE-2026-93100 is a use-after-free in the Linux kernel's fs/resctrl subsystem. The race occurs between rdtgroup_kn_put() (which decrements waitcount via atomic_dec_and_test() outside rdtgroup_mutex) and bulk teardown paths (free_all_child_rdtgrp() / rmdir_all_sub()) that hold the mutex. A concurr...