UBUNTU-CVE-2026-89646

In the Linux kernel, the following vulnerability has been resolved: ceph: fix leaked inode reference on writeback abort at umount cephdirtyfolio takes a wrbuffer claim on each newly dirtied folio: it bumps iwrbufferref taking an ihold on the 0-1 transition and attaches the snapcontext to...

CVE-2026-89646 ceph: fix leaked inode reference on writeback abort at umount

In the Linux kernel, the following vulnerability has been resolved: ceph: fix leaked inode reference on writeback abort at umount cephdirtyfolio takes a wrbuffer claim on each newly dirtied folio: it bumps iwrbufferref taking an ihold on the 0-1 transition and attaches the snapcontext to...

CVE-2026-89646

CVE-2026-89646 is a leaked inode reference bug in the Ceph filesystem component of the Linux kernel. When a writeback is aborted during unmount (because ceph_inc_osd_stopping_blocker() fails), the ihold() taken by ceph_dirty_folio() is never released via writepages_finish(), so i_wrbuffer_ref nev...

EUVD-2026-76558

In the Linux kernel, the following vulnerability has been resolved: ceph: fix leaked inode reference on writeback abort at umount cephdirtyfolio takes a wrbuffer claim on each newly dirtied folio: it bumps iwrbufferref taking an ihold on the 0-1 transition and attaches the snapcontext to...

CVE-2026-89646

In the Linux kernel, the following vulnerability has been resolved: ceph: fix leaked inode reference on writeback abort at umount cephdirtyfolio takes a wrbuffer claim on each newly dirtied folio: it bumps iwrbufferref taking an ihold on the 0-1 transition and attaches the snapcontext to...

CVE-2026-89646 ceph: fix leaked inode reference on writeback abort at umount

In the Linux kernel, the following vulnerability has been resolved: ceph: fix leaked inode reference on writeback abort at umount cephdirtyfolio takes a wrbuffer claim on each newly dirtied folio: it bumps iwrbufferref taking an ihold on the 0-1 transition and attaches the snapcontext to...

CVE-2026-89507

A race condition in the Linux kernel's RDMA/ucma subsystem affects the ucma_write_cm_event() function, which re-reads the ctx->file pointer four times without holding the handler lock. This allows ucma_migrate_id() to swap the pointer mid-sequence, leading to list corruption , a kernel BUG (cr...

CVE-2026-81015 platform/x86/amd/pmc: Fix LPS0 and debugfs leaks when STB init fails

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/pmc: Fix LPS0 and debugfs leaks when STB init fails amdpmcprobe registers the LPS0 s2idle handler with acpiregisterlps0dev and creates the driver's debugfs directory before calling amdstbs2dinit, which is the las...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-107320)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-107320 advisory. In the Linux kernel, the following vulnerability has been resolved: hwpoison, memoryhotplug: lock folio before unmap hwpoisoned folio Commit b15c87263a69 hwpoison,...

CVE-2026-81015: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/pmc: Fix LPS0 and debugfs leaks when STB init fails amdpmcprobe registers the LPS0 s2idle handler with acpiregisterlps0dev and creates the driver's debugfs directory before calling amdstbs2dinit, which is the las...

PT-2026-90362

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Ceph component of the Linux kernel where an inode reference is leaked during a writeback abort during unmount. The ceph dirty folio function creates a wrbuffer cla...

PT-2026-90145

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the amd pmc probe function where the LPS0 s2idle handler is registered via acpi register lps0 dev and a debugfs directory is created before calling amd stb s2d init. I...

CVE-2026-80920

In the Linux kernel, the following vulnerability has been resolved: iouring: defer eventfd signaling when queued from a wakeup handler ioreqlocalworkadd signals the CQ ring eventfd inline when it is the one to push the first entry onto -worklist. For DEFERTASKRUN rings that add is frequently done...

UBUNTU-CVE-2026-79602

A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG in Xen...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053286)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053286 advisory. In the Linux kernel, the following vulnerability has been resolved: dm-bufio: don't schedule in atomic context A BUG was reported as below when CONFIGDEBUGATOMICSLEE...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053346)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053346 advisory. In the Linux kernel, the following vulnerability has been resolved: mm/vmscan: don't try to reclaim hwpoison folio Syzkaller reports a bug as follows: Injecting memo...

Linux Distros Unpatched Vulnerability : CVE-2026-80734

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - btrfs: initialize inode mapping flags for cached inodes BUG When running generic/795 with 8K block size, 4K page size, the test always fails, triggering some...

CVE-2026-80866

In the Linux kernel, the following vulnerability has been resolved: tipc: avoid busy looping in tipcexitnet Blamed commit introduced a busy-wait loop in tipcexitnet to wait for pending UDP bearer cleanup works to complete: while atomicread&tn-wqcount condresched; This loop can busy-wait for a lon...

CVE-2026-80761

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: zero the sockaddr before returning it in getname isosockgetname fills a struct sockaddriso in place and returns its size without clearing it first, so bytes it does not write are copied to user space from the kern...

CVE-2026-80861

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: bail out of setup if the controller is inaccessible xhcigensetup locates the operational registers using the capability length read from the very first register: xhci-opregs = hcd-regs +...