CVE-2026-64397 ksmbd: serialize QUERY_DIRECTORY requests per file

In the Linux kernel, the following vulnerability has been resolved: ksmbd: serialize QUERYDIRECTORY requests per file smb2querydir stores a pointer to its stack-allocated private data in the ksmbdfile readdirdata. Concurrent QUERYDIRECTORY requests using the same file handle can overwrite this...

EUVD-2026-48941

In the Linux kernel, the following vulnerability has been resolved: ksmbd: serialize QUERYDIRECTORY requests per file smb2querydir stores a pointer to its stack-allocated private data in the ksmbdfile readdirdata. Concurrent QUERYDIRECTORY requests using the same file handle can overwrite this...

CVE-2026-64397

CVE-2026-64397 affects the Linux kernel ksmbd component. The issue arises in smb2_query_dir() which stores a pointer to stack-allocated private data in ksmbd_file readdir_data; concurrent QUERY_DIRECTORY requests using the same file handle can overwrite this pointer while an iterate_dir() callbac...

CVE-2026-64397 ksmbd: serialize QUERY_DIRECTORY requests per file

In the Linux kernel, the following vulnerability has been resolved: ksmbd: serialize QUERYDIRECTORY requests per file smb2querydir stores a pointer to its stack-allocated private data in the ksmbdfile readdirdata. Concurrent QUERYDIRECTORY requests using the same file handle can overwrite this...

CVE-2026-64344 USB: idmouse: fix use-after-free on disconnect race

In the Linux kernel, the following vulnerability has been resolved: USB: idmouse: fix use-after-free on disconnect race mutexunlock may access the mutex structure after releasing the lock and therefore cannot be used to manage lifetime of objects directly unlike spinlocks and refcounts. 12 Use a...

CVE-2026-64344

CVE-2026-64344 tracks a Linux kernel USB idmouse driver use‑after‑free on disconnect race. The root cause: mutex_unlock() may touch the mutex after unlocking, risking lifetime management problems; the fix uses a kref to release driver data to avoid use‑after‑free when release() races with disconn...

EUVD-2026-48887

In the Linux kernel, the following vulnerability has been resolved: USB: ldusb: fix use-after-free on disconnect race mutexunlock may access the mutex structure after releasing the lock and therefore cannot be used to manage lifetime of objects directly unlike spinlocks and refcounts. 12 Use a kr...

EUVD-2026-48885

In the Linux kernel, the following vulnerability has been resolved: USB: iowarrior: fix use-after-free on disconnect race mutexunlock may access the mutex structure after releasing the lock and therefore cannot be used to manage lifetime of objects directly unlike spinlocks and refcounts. 12 Use ...

CVE-2026-64341

In CVE-2026-64341, the Linux kernel USB iowarrior driver fix addresses a use-after-free race on disconnect. The issue: mutex_unlock() can access the mutex structure after unlocking, potentially ending object lifetime management incorrectly. The mitigation: release the driver data using a kref to ...

CVE-2026-64340 USB: legousbtower: fix use-after-free on disconnect race

In the Linux kernel, the following vulnerability has been resolved: USB: legousbtower: fix use-after-free on disconnect race mutexunlock may access the mutex structure after releasing the lock and therefore cannot be used to manage lifetime of objects directly unlike spinlocks and refcounts. 12 U...

CVE-2026-64340

The CVE-2026-64340 entry concerns the Linux kernel USB legousbtower driver. A use-after-free can occur because mutex_unlock() may access the mutex object after the lock is released, which can mismanage object lifetimes during disconnect races. The documented fix is to release the driver data usin...

EUVD-2026-48884

In the Linux kernel, the following vulnerability has been resolved: USB: legousbtower: fix use-after-free on disconnect race mutexunlock may access the mutex structure after releasing the lock and therefore cannot be used to manage lifetime of objects directly unlike spinlocks and refcounts. 12 U...

CVE-2026-64300 perf/aux: Fix page UAF in map_range()

In the Linux kernel, the following vulnerability has been resolved: perf/aux: Fix page UAF in maprange maprange reads rb-auxpages, rb-auxnrpages and rb-auxpgoff via perfmmaptopage while holding only event-mmapmutex. Those fields are serialized by rb-auxmutex, and mmapmutex is per event. Thus, two...

CVE-2026-64300

CVE-2026-64300 (Linux kernel, perf/aux): Concrete details across connected docs show a page-use-after-free (UAF) in map_range() due to reading rb->aux_pages[], rb->aux_nr_pages, and rb->aux_pgoff under the wrong mutex, enabling a race between rb_alloc_aux() and map_range() when PERF_EVEN...

EUVD-2026-49012

In the Linux kernel, the following vulnerability has been resolved: perf/aux: Fix page UAF in maprange maprange reads rb-auxpages, rb-auxnrpages and rb-auxpgoff via perfmmaptopage while holding only event-mmapmutex. Those fields are serialized by rb-auxmutex, and mmapmutex is per event. Thus, two...

CVE-2026-64300 perf/aux: Fix page UAF in map_range()

In the Linux kernel, the following vulnerability has been resolved: perf/aux: Fix page UAF in maprange maprange reads rb-auxpages, rb-auxnrpages and rb-auxpgoff via perfmmaptopage while holding only event-mmapmutex. Those fields are serialized by rb-auxmutex, and mmapmutex is per event. Thus, two...

PT-2026-64622

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the SMB client. The cifs swn notify function retrieves a witness registration by ID using the cifs swnreg idr mutex mutex, releases the mutex, and...

Linux Distros Unpatched Vulnerability : CVE-2026-64300

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - perf/aux: Fix page UAF in maprange maprange reads rb-auxpages, rb-auxnrpages and rb-auxpgoff via perfmmaptopage while holding only event-mmapmutex. Those fields...

Linux Distros Unpatched Vulnerability : CVE-2026-64344

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - USB: idmouse: fix use-after-free on disconnect race mutexunlock may access the mutex structure after releasing the lock and therefore cannot be used to manage...

PT-2026-64639

In the Linux kernel, the following vulnerability has been resolved: mm: shrinker: fix shrinker info teardown race with expansion expand shrinker info iterates all visible memcgs under shrinker mutex, including memcgs that have not finished -css online yet. Once pn-shrinker info has been published...