CVE-2026-89686

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix BUGON in nfsd4alloclayoutstateid on racing delegation revoke nfsd4alloclayoutstateid reads fp-fidelegfile without holding filock when the parent stateid is a delegation. A concurrent delegation revoke via the laundromat...

CVE-2026-89670 nfsd: hold rcu across localio cmpxchg retry

In the Linux kernel, the following vulnerability has been resolved: nfsd: hold rcu across localio cmpxchg retry nfsdfile objects are freed via callrcu filecache.c:296, and nfsdfileslab is created without SLABTYPESAFEBYRCU KMEMCACHEnfsdfile, 0 at filecache.c:789, so the slab page backing a freed...

CVE-2026-89662

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent lock owner use-after-free during client teardown destroyclient releases a client's open owners, but a lock owner whose only reference is a blocked lock nbl stays on clownerstrhashtbl. clienthasstate does not count a...

CVE-2026-89662 NFSD: Prevent lock owner use-after-free during client teardown

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent lock owner use-after-free during client teardown destroyclient releases a client's open owners, but a lock owner whose only reference is a blocked lock nbl stays on clownerstrhashtbl. clienthasstate does not count a...

CVE-2026-89662 NFSD: Prevent lock owner use-after-free during client teardown

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent lock owner use-after-free during client teardown destroyclient releases a client's open owners, but a lock owner whose only reference is a blocked lock nbl stays on clownerstrhashtbl. clienthasstate does not count a...

EUVD-2026-76574

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent lock owner use-after-free during client teardown destroyclient releases a client's open owners, but a lock owner whose only reference is a blocked lock nbl stays on clownerstrhashtbl. clienthasstate does not count a...

CVE-2026-89662

CVE-2026-89662 is a use-after-free vulnerability in the Linux kernel's NFSD (Network File System Daemon) component, triggered during client teardown. A race condition between __destroy_client() and the per-net laundromat (which independently reaps blocked locks) allows a lock owner to be freed wh...

CVE-2026-89660

CVE-2026-89660 is a use-after-free in the Linux kernel's NFSD (Network File System Daemon) subsystem, rated CVSS 9.8 (Critical) . The flaw arises in nfsd4_revoke_states(), which drops client_lock while dereferencing a client to revoke a stateid. A concurrent teardown can free the nfs4_client befo...

CVE-2026-89660

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during admin state revocation A stateid holds only a bare pointer to its nfs4client; a stateid reference does not pin it. The client survives only because destroyclient drains its stateids befo...

CVE-2026-89609 ecryptfs: hold msg ctx list lock when cleaning daemon queue

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: hold msg ctx list lock when cleaning daemon queue ecryptfsexorcisedaemon drops queued messages from a dying daemon without holding ecryptfsmsgctxlistsmux, but ecryptfsmsgctxalloctofree requires that lock. Take the list...

CVE-2026-89609

CVE-2026-89609 is a race condition in the eCryptfs component of the Linux kernel. The function ecryptfs_exorcise_daemon() drops queued messages from a dying daemon without holding the ecryptfs_msg_ctx_lists_mux lock, which ecryptfs_msg_ctx_alloc_to_free() requires. This allows concurrent access t...

CVE-2026-89609 ecryptfs: hold msg ctx list lock when cleaning daemon queue

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: hold msg ctx list lock when cleaning daemon queue ecryptfsexorcisedaemon drops queued messages from a dying daemon without holding ecryptfsmsgctxlistsmux, but ecryptfsmsgctxalloctofree requires that lock. Take the list...

CVE-2026-89609

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: hold msg ctx list lock when cleaning daemon queue ecryptfsexorcisedaemon drops queued messages from a dying daemon without holding ecryptfsmsgctxlistsmux, but ecryptfsmsgctxalloctofree requires that lock. Take the list...

EUVD-2026-76521

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: hold msg ctx list lock when cleaning daemon queue ecryptfsexorcisedaemon drops queued messages from a dying daemon without holding ecryptfsmsgctxlistsmux, but ecryptfsmsgctxalloctofree requires that lock. Take the list...

EUVD-2026-76480

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: serialize security confirmation handling rfcommsecuritycfm looks up a session on sessionlist and then walks its DLC list without holding rfcommmutex. Since RFCOMM session teardown uses rfcommmutex, krfcommd can...

CVE-2026-89569 Bluetooth: RFCOMM: serialize security confirmation handling

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: serialize security confirmation handling rfcommsecuritycfm looks up a session on sessionlist and then walks its DLC list without holding rfcommmutex. Since RFCOMM session teardown uses rfcommmutex, krfcommd can...

CVE-2026-89567

In the Linux kernel, the following vulnerability has been resolved: jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against nrtoscan. Busy buffers therefore do not consume the scan budget. If a...

CVE-2026-89567 jbd2: bound shrinker scans by examined checkpoint buffers

In the Linux kernel, the following vulnerability has been resolved: jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against nrtoscan. Busy buffers therefore do not consume the scan budget. If a...

CVE-2026-89567 jbd2: bound shrinker scans by examined checkpoint buffers

In the Linux kernel, the following vulnerability has been resolved: jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against nrtoscan. Busy buffers therefore do not consume the scan budget. If a...

CVE-2026-89567

CVE-2026-89567 affects the jbd2 (Journalling Block Device v2) subsystem of the Linux kernel . The root cause is that the jbd2 shrinker accounts only successfully released checkpoint buffers against its scan budget (nr_to_scan ), meaning busy buffers consume no budget. If a checkpoint transaction ...