CVE-2026-64397

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-2026-64401

In the Linux kernel, the following vulnerability has been resolved: smb: client: resolve SWN tcon from live registrations cifsswnnotify looks up a witness registration by id under cifsswnregidrmutex, drops the mutex, and then uses the registration's cached tcon pointer. That pointer is not a...

CVE-2026-64343

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...

CVE-2026-64341

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-2026-64300

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...

UBUNTU-CVE-2026-64344

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...

UBUNTU-CVE-2026-64340

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...

UBUNTU-CVE-2026-64430

In the Linux kernel, the following vulnerability has been resolved: NTB: epf: Avoid calling pciirqvector from hardirq context ntbepfvecisr calls pciirqvector in hardirq context to derive the vector number. pciirqvector calls msigetvirq that takes a mutex and can therefore trigger "scheduling whil...

UBUNTU-CVE-2026-64341

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 ...

UBUNTU-CVE-2026-64343

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...

UBUNTU-CVE-2026-64397

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...

UBUNTU-CVE-2026-64300

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-2026-64430 NTB: epf: Avoid calling pci_irq_vector() from hardirq context

In the Linux kernel, the following vulnerability has been resolved: NTB: epf: Avoid calling pciirqvector from hardirq context ntbepfvecisr calls pciirqvector in hardirq context to derive the vector number. pciirqvector calls msigetvirq that takes a mutex and can therefore trigger "scheduling whil...

CVE-2026-64430 NTB: epf: Avoid calling pci_irq_vector() from hardirq context

In the Linux kernel, the following vulnerability has been resolved: NTB: epf: Avoid calling pciirqvector from hardirq context ntbepfvecisr calls pciirqvector in hardirq context to derive the vector number. pciirqvector calls msigetvirq that takes a mutex and can therefore trigger "scheduling whil...

EUVD-2026-48962

In the Linux kernel, the following vulnerability has been resolved: mm: shrinker: fix shrinkerinfo teardown race with expansion expandshrinkerinfo iterates all visible memcgs under shrinkermutex, including memcgs that have not finished -cssonline yet. Once pn-shrinkerinfo has been published,...

CVE-2026-64418

CVE-2026-64418 is a Linux kernel memory-management race in the shrinker subsystem. The vulnerability arises when the shrinker_info array is freed while still accessible, causing use-after-free or double-free. The root cause is that alloc_shrinker_info() can drop shrinker_mutex before finishing in...

CVE-2026-64418 mm: shrinker: fix shrinker_info teardown race with expansion

In the Linux kernel, the following vulnerability has been resolved: mm: shrinker: fix shrinkerinfo teardown race with expansion expandshrinkerinfo iterates all visible memcgs under shrinkermutex, including memcgs that have not finished -cssonline yet. Once pn-shrinkerinfo has been published,...

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 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...