UBUNTU-CVE-2026-89536

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: wait for in-flight client TLS handshake callback xstlshandshakesync gives xstlshandshakedone a reference to the lower transport before submitting the handshake request. On timeout or signal, the synchronous waiter drops...

CVE-2026-89710

In the Linux kernel, the following vulnerability has been resolved: NFSv4.1: fix layout segment leak on the pnfslayoutprocess forget path When the server returns a new layout stateid while a valid one is still held, pnfslayoutprocess calls pnfsmarkmatchinglsegsreturn on the on-stack freeme list a...

CVE-2026-89755 mm/migrate_device: clear stale mapping after freeing swapcache

In the Linux kernel, the following vulnerability has been resolved: mm/migratedevice: clear stale mapping after freeing swapcache migratedevicepages reads the folio mapping before calling foliofreeswap. When foliofreeswap succeeds, the folio is removed from the swap cache, but the saved mapping...

CVE-2026-89755

In the Linux kernel, the following vulnerability has been resolved: mm/migratedevice: clear stale mapping after freeing swapcache migratedevicepages reads the folio mapping before calling foliofreeswap. When foliofreeswap succeeds, the folio is removed from the swap cache, but the saved mapping...

EUVD-2026-76667

In the Linux kernel, the following vulnerability has been resolved: mm/migratedevice: clear stale mapping after freeing swapcache migratedevicepages reads the folio mapping before calling foliofreeswap. When foliofreeswap succeeds, the folio is removed from the swap cache, but the saved mapping...

CVE-2026-89755 mm/migrate_device: clear stale mapping after freeing swapcache

In the Linux kernel, the following vulnerability has been resolved: mm/migratedevice: clear stale mapping after freeing swapcache migratedevicepages reads the folio mapping before calling foliofreeswap. When foliofreeswap succeeds, the folio is removed from the swap cache, but the saved mapping...

CVE-2026-89755

CVE-2026-89755 affects the Linux kernel's device page migration subsystem (mm/migrate_device). The root cause is a stale folio mapping that persists after folio_free_swap() removes a folio from the swap cache. Passing this stale mapping to folio_migrate_mapping() causes the kernel to take the wro...

CVE-2026-89750

In the Linux kernel, the following vulnerability has been resolved: tracing/userevents: Clear copied tracing state before fork duplication duptaskstruct copies usereventmm from the parent into the child, without grabbing a reference to it. usereventmmdup should replace it, but it leaves that copi...

CVE-2026-89735 usb: gadget: midi2: remove default configfs groups on teardown

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: midi2: remove default configfs groups on teardown fmidi2allocinst creates default configfs child groups for the default endpoint and default block using configfsadddefaultgroup, setting their internal refcount to 1...

CVE-2026-89654

CVE-2026-89654 is a use-after-free race condition in the Ceph file system component of the Linux kernel. The vulnerable function, check_new_map(), iterates over MDS sessions and drops the global mutex without holding a reference on the session struct in three code paths. A concurrent thread can t...

CVE-2026-89643 audit: avoid dropping live tree ref on fsnotify rule autoremove

In the Linux kernel, the following vulnerability has been resolved: audit: avoid dropping live tree ref on fsnotify rule autoremove auditdelrule is used for both netlink deletion templates and internal fsnotify autoremove. The former passes a parsed template which owns a temporary tree reference;...

CVE-2026-89527 svcrdma: Use svc_xprt_put to free listener on create failure

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Use svcxprtput to free listener on create failure svcrdmacreate calls kfreecmaxprt when svcrdmacreatelistenid fails. svcxprtinit has already acquired a net namespace reference via getnettrack; kfree bypasses svcxprtfree...

CVE-2026-89453

CVE-2026-89453 is a PCI device reference count leak in the Linux kernel's iommu/amd subsystem. The function iommu_call_iopf_notifier() calls pci_get_domain_bus_and_slot() which increments the device's reference count, but neither the successful iommu_report_device_fault() path nor the abort path ...

CVE-2026-89453 iommu/amd: Put PCI device after handling PPR faults

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Put PCI device after handling PPR faults iommucalliopfnotifier looks up the requester with pcigetdomainbusandslot, which returns a PCI device with its reference count incremented. Neither the successful...

CVE-2026-89453: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Put PCI device after handling PPR faults iommucalliopfnotifier looks up the requester with pcigetdomainbusandslot, which returns a PCI device with its reference count incremented. Neither the successful...

CVE-2026-89755: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: mm/migratedevice: clear stale mapping after freeing swapcache migratedevicepages reads the folio mapping before calling foliofreeswap. When foliofreeswap succeeds, the folio is removed from the swap cache, but the saved mapping...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053244)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053244 advisory. In the Linux kernel, the following vulnerability has been resolved: ax25: Fix reference count leak issue of netdevice There is a reference count leak issue of the...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053412)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053412 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: fix mbcacheentry's erefcnt leak in ext4xattrblockcachefind Syzbot reports a warning as...

CVE-2026-80808

In the Linux kernel, the following vulnerability has been resolved: ext4: stop retrying saturated xattr cache entries ext4xattrblockset retries when a cache entry selected for reuse has a saturated reference count after taking the buffer lock. The retry returns to the mbcache lookup without makin...

CVE-2026-80821

CVE-2026-80821 affects the Linux kernel 's nvmet pci-epf driver (NVM Express over Fabrics Target, PCIe Endpoint Function). The vulnerability is a reference leak in nvmet_pci_epf_create_cq(): when PCI address-space mapping fails or returns a too-small partial mapping after nvmet_cq_create() succee...