CVE-2026-90187

A flaw was found in the nullblk module of the Linux kernel. When a zoned nullblk device is powered off and then on again, the memory allocated for device zones is not properly freed. This oversight causes a memory leak with each power cycle, which could lead to resource exhaustion over time...

CVE-2026-90188

A flaw was found in the Linux kernel's nullblk module. When sharedtags is enabled and device creation fails after allocating a global tag set, the global tag set is not properly freed. This oversight leads to a permanent memory leak, which could potentially result in a Denial of Service DoS due t...

Linux Distros Unpatched Vulnerability : CVE-2026-90185

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nullblk: serialize configfs attribute stores with the lock The NULLBDEVICEATTR store takes no lock: applyfn attributes submitqueues, pollqueues get dev-NAME...

Linux Distros Unpatched Vulnerability : CVE-2026-90184

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nullblk: serialize configfs attribute updates with device setup The attribute store methods generated with NULLBDEVICEATTR refuse to change the configuration of...

Linux Distros Unpatched Vulnerability : CVE-2026-90190

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nullblk: use DEFINEMUTEX for the file-scope mutex In nullinit, mutexinit&lock currently happens after configfsregistersubsystem, which exposes the nullb subsyst...

Linux Distros Unpatched Vulnerability : CVE-2026-90188

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nullblk: free global tagset on init error path If sharedtags is enabled, nullsetuptagset allocates the global tagset via nullinitglobaltagset. If device creatio...

Linux Distros Unpatched Vulnerability : CVE-2026-90186

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nullblk: reject per-device queue resize for shared tag set When sharedtags is enabled, nullsetuptagset makes the device use the global tagset, whose driverdata...

Linux Distros Unpatched Vulnerability : CVE-2026-90187

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nullblk: free zones array on device power-off nullinitzoneddev allocates dev-zones when a zoned device is powered on, but nulldeldev never frees it on power-off...

Linux Distros Unpatched Vulnerability : CVE-2026-90189

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nullblk: register configfs subsystem after creating default devices In nullinit, configfsregistersubsystem currently runs before registerblkdev, so when nullblk...

DEBIAN-CVE-2026-90187

In the Linux kernel, the following vulnerability has been resolved: nullblk: free zones array on device power-off nullinitzoneddev allocates dev-zones when a zoned device is powered on, but nulldeldev never frees it on power-off; dev-zones is only freed later in nullfreedev, when the configfs...

DEBIAN-CVE-2026-90190

In the Linux kernel, the following vulnerability has been resolved: nullblk: use DEFINEMUTEX for the file-scope mutex In nullinit, mutexinit&lock currently happens after configfsregistersubsystem, which exposes the nullb subsystem to userspace. A racing mkdir into /sys/kernel/config/nullb/ can...

CVE-2026-90186

In the Linux kernel, the following vulnerability has been resolved: nullblk: reject per-device queue resize for shared tag set When sharedtags is enabled, nullsetuptagset makes the device use the global tagset, whose driverdata stays NULL. nullmapqueues therefore falls back to the module-wide...

AZL-103017 CVE-2026-90186 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: nullblk: reject per-device queue resize for shared tag set When sharedtags is enabled, nullsetuptagset makes the device use the global tagset, whose driverdata stays NULL. nullmapqueues therefore falls back to the module-wide...

AZL-102242 CVE-2026-90188 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: nullblk: free global tagset on init error path If sharedtags is enabled, nullsetuptagset allocates the global tagset via nullinitglobaltagset. If device creation later fails, errdev destroys the default devices and calls...

DEBIAN-CVE-2026-90188

In the Linux kernel, the following vulnerability has been resolved: nullblk: free global tagset on init error path If sharedtags is enabled, nullsetuptagset allocates the global tagset via nullinitglobaltagset. If device creation later fails, errdev destroys the default devices and calls...

AZL-102141 CVE-2026-90189 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: nullblk: register configfs subsystem after creating default devices In nullinit, configfsregistersubsystem currently runs before registerblkdev, so when nullblk is built as a module, a racing mkdir + poweron from userspace can...

AZL-102345 CVE-2026-90190 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: nullblk: use DEFINEMUTEX for the file-scope mutex In nullinit, mutexinit&lock currently happens after configfsregistersubsystem, which exposes the nullb subsystem to userspace. A racing mkdir into /sys/kernel/config/nullb/ can...

CVE-2026-90190

In the Linux kernel, the following vulnerability has been resolved: nullblk: use DEFINEMUTEX for the file-scope mutex In nullinit, mutexinit&lock currently happens after configfsregistersubsystem, which exposes the nullb subsystem to userspace. A racing mkdir into /sys/kernel/config/nullb/ can...

CVE-2026-90189

In the Linux kernel, the following vulnerability has been resolved: nullblk: register configfs subsystem after creating default devices In nullinit, configfsregistersubsystem currently runs before registerblkdev, so when nullblk is built as a module, a racing mkdir + poweron from userspace can...

CVE-2026-90187

In the Linux kernel, the following vulnerability has been resolved: nullblk: free zones array on device power-off nullinitzoneddev allocates dev-zones when a zoned device is powered on, but nulldeldev never frees it on power-off; dev-zones is only freed later in nullfreedev, when the configfs...