UBUNTU-CVE-2026-99018

In the Linux kernel, the following vulnerability has been resolved: riscv: entry: gate shadow call stack reload on sstatus.SPP, not tp Under CONFIGSHADOWCALLSTACK, handleexception reloads the kernel shadow call stack pointer gp only when the trap came from userspace. It made that decision with...

UBUNTU-CVE-2026-98917

In the Linux kernel, the following vulnerability has been resolved: parisc: Increase kernel stack size to 32kb For 64-bit Linux kernels, increase the default kernel stack size THREADSIZEORDER to 32 kB, in order to avoid kernel crashes which have been triggered recently when building the debian vt...

UBUNTU-CVE-2026-98990

In the Linux kernel, the following vulnerability has been resolved: namespace: check a submount for references right before unmounting it shrinksubmounts and markmountsforexpiry first collect all the mounts they are allowed to unmount and then unmount them. Whether a mount is busy is decided by...

CVE-2026-99007

In the Linux kernel, the following vulnerability has been resolved: drm/fb-helper: defer setup when fbdevprobe fails, not just on -EAGAIN drmfbhelperinitialconfigandunlock calls drmclientmodesetprobe first, which already fills in each modeset-mode/numconnectors for every connected output, and onl...

CVE-2026-99087

The Linux kernel contains a vulnerability in the dm-integrity component where a NULL pointer dereference occurs during dm_integrity_resume. This issue is triggered when a device has the SB_FLAG_DIRTY_BITMAP flag set and is activated in 'R' mode , causing the function to incorrectly attempt to rea...

CVE-2026-99087 dm-integrity: fix NULL pointer dereference when the 'R' flag is used

In the Linux kernel, the following vulnerability has been resolved: dm-integrity: fix NULL pointer dereference when the 'R' flag is used If the dm-integrity device has the SBFLAGDIRTYBITMAP flag set and the user activates the device in the 'R' mode, a crash in dmintegrityresume happens because th...

EUVD-2026-108938

In the Linux kernel, the following vulnerability has been resolved: dm-integrity: fix NULL pointer dereference when the 'R' flag is used If the dm-integrity device has the SBFLAGDIRTYBITMAP flag set and the user activates the device in the 'R' mode, a crash in dmintegrityresume happens because th...

CVE-2026-99087 dm-integrity: fix NULL pointer dereference when the 'R' flag is used

In the Linux kernel, the following vulnerability has been resolved: dm-integrity: fix NULL pointer dereference when the 'R' flag is used If the dm-integrity device has the SBFLAGDIRTYBITMAP flag set and the user activates the device in the 'R' mode, a crash in dmintegrityresume happens because th...

CVE-2026-99086 dm-integrity: validate the superblock on resume

In the Linux kernel, the following vulnerability has been resolved: dm-integrity: validate the superblock on resume dmintegrityresume re-reads the superblock from the device so that it picks up the flags and the recalculate position. It performs no validation on the result, while the constructor...

CVE-2026-99086

A vulnerability exists in the Linux kernel within the dm-integrity component. The dm_integrity_resume() function re-reads the superblock from the device without validation, while in-memory structures are sized based on the validated superblock read during the constructor. An attacker can modify t...

CVE-2026-99086 dm-integrity: validate the superblock on resume

In the Linux kernel, the following vulnerability has been resolved: dm-integrity: validate the superblock on resume dmintegrityresume re-reads the superblock from the device so that it picks up the flags and the recalculate position. It performs no validation on the result, while the constructor...

EUVD-2026-108937

In the Linux kernel, the following vulnerability has been resolved: dm-integrity: validate the superblock on resume dmintegrityresume re-reads the superblock from the device so that it picks up the flags and the recalculate position. It performs no validation on the result, while the constructor...

CVE-2026-99085

The Linux kernel contains a vulnerability in sched_ext where a CPU hotplug hang can occur if a dying CPU's tasks are held by the BPF scheduler . The issue arises because tasks on a user DSQ are still counted on the runqueue (rq), but an inactive CPU stops calling ops.dispatch(), preventing tasks ...

CVE-2026-99085 sched_ext: Fix CPU hotplug hang when a dying CPU's tasks sit in the BPF scheduler

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix CPU hotplug hang when a dying CPU's tasks sit in the BPF scheduler A CPU going down has to empty its own rq. Its hotplug thread waits in schedcpuwaitempty until nothing else is left, and the only thing that wakes it...

EUVD-2026-108936

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix CPU hotplug hang when a dying CPU's tasks sit in the BPF scheduler A CPU going down has to empty its own rq. Its hotplug thread waits in schedcpuwaitempty until nothing else is left, and the only thing that wakes it...

CVE-2026-99085 sched_ext: Fix CPU hotplug hang when a dying CPU's tasks sit in the BPF scheduler

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix CPU hotplug hang when a dying CPU's tasks sit in the BPF scheduler A CPU going down has to empty its own rq. Its hotplug thread waits in schedcpuwaitempty until nothing else is left, and the only thing that wakes it...

EUVD-2026-108935

In the Linux kernel, the following vulnerability has been resolved: readdir: take no inode lock on an immutable directory iteratedir takes the directory's irwsem shared and holds it across -iterateshared. For a directory that never has an entry and is never removed the lock keeps nothing still, i...

CVE-2026-99084

The Linux kernel contains a vulnerability where iterate_dir() takes a directory's i_rwsem shared lock and holds it across iterate_shared() . This is particularly impactful for nullfs instances, where a shared inode across multiple mount namespaces can be used to cause a denial of service (DoS) . ...

CVE-2026-99084 readdir: take no inode lock on an immutable directory

In the Linux kernel, the following vulnerability has been resolved: readdir: take no inode lock on an immutable directory iteratedir takes the directory's irwsem shared and holds it across -iterateshared. For a directory that never has an entry and is never removed the lock keeps nothing still, i...

CVE-2026-99084 readdir: take no inode lock on an immutable directory

In the Linux kernel, the following vulnerability has been resolved: readdir: take no inode lock on an immutable directory iteratedir takes the directory's irwsem shared and holds it across -iterateshared. For a directory that never has an entry and is never removed the lock keeps nothing still, i...