CVE-2026-64399

Summary: CVE-2026-64399 affects the Linux kernel ksmbd path for FSCTL_DUPLICATE_EXTENTS_TO_FILE. The vulnerability allows overwriting a destination file’s data via vfs_clone_file_range() because both the share-level KSMBD_TREE_CONN_FLAG_WRITABLE check and a per-handle daccess check were absent, a...

EUVD-2026-48939

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange without checking the SMB access mask granted to the source handle. A...

CVE-2026-64395 ksmbd: require source read access for duplicate extents

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange without checking the SMB access mask granted to the source handle. A...

CVE-2026-64395

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange without checking the SMB access mask granted to the source handle. A...

CVE-2026-64390 ksmbd: track the connection owning a byte-range lock

In the Linux kernel, the following vulnerability has been resolved: ksmbd: track the connection owning a byte-range lock SMB2LOCK adds each granted byte-range lock to both the file lock list and the lock list of the connection which handled the request. The final close and durable handle paths,...

EUVD-2026-48934

In the Linux kernel, the following vulnerability has been resolved: ksmbd: track the connection owning a byte-range lock SMB2LOCK adds each granted byte-range lock to both the file lock list and the lock list of the connection which handled the request. The final close and durable handle paths,...

CVE-2026-64390 ksmbd: track the connection owning a byte-range lock

In the Linux kernel, the following vulnerability has been resolved: ksmbd: track the connection owning a byte-range lock SMB2LOCK adds each granted byte-range lock to both the file lock list and the lock list of the connection which handled the request. The final close and durable handle paths,...

CVE-2026-64390

The CVE-2026-64390 issue affects the Linux kernel ksmbd component where SMB2_LOCK locks are tracked on the file lock list and the lock list of the handling connection. With SMB3 multichannel, the LOCK owner can differ from the file opener, so a lock entry can be removed under a different spinlock...

CVE-2026-64390

In the Linux kernel, the following vulnerability has been resolved: ksmbd: track the connection owning a byte-range lock SMB2LOCK adds each granted byte-range lock to both the file lock list and the lock list of the connection which handled the request. The final close and durable handle paths,...

EUVD-2026-48903

In the Linux kernel, the following vulnerability has been resolved: nilfs2: reject CLEANSEGMENTS ioctl with out-of-range segment numbers Syzbot reported a hung task in nilfstransactionbegin where multiple tasks performing chmod on a nilfs2 mount blocked for over 143 seconds waiting to acquire...

CVE-2026-64359 nilfs2: reject CLEAN_SEGMENTS ioctl with out-of-range segment numbers

In the Linux kernel, the following vulnerability has been resolved: nilfs2: reject CLEANSEGMENTS ioctl with out-of-range segment numbers Syzbot reported a hung task in nilfstransactionbegin where multiple tasks performing chmod on a nilfs2 mount blocked for over 143 seconds waiting to acquire...

CVE-2026-64359

In the Linux kernel, the following vulnerability has been resolved: nilfs2: reject CLEANSEGMENTS ioctl with out-of-range segment numbers Syzbot reported a hung task in nilfstransactionbegin where multiple tasks performing chmod on a nilfs2 mount blocked for over 143 seconds waiting to acquire...

CVE-2026-64324 udf: validate free block extents against the partition length

In the Linux kernel, the following vulnerability has been resolved: udf: validate free block extents against the partition length udffreeblocks checks the logical block number and count against the partition length, but drops the extent offset from that final bound. A crafted extent can pass the...

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...

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...

[SECURITY] Fedora 43 Update: wget1-1.25.0-3.fc43

GNU Wget is a file retrieval utility which can use either the HTTP or FTP protocols. Wget features include the ability to work in the background while you are logged out, recursive retrieval of directories, file name wildcard matching, remote file timestamp storage and comparison, use of Rest wit...

SUSE CVE-2026-64225

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: CGX: add bounds check to cgxspeedmbps index cgxspeedmbps has 13 elements but RESPLINKSTATSPEED can yield values 0-15. If it returns a value = 13, this causes an out-of-bounds array access. Add a bounds check and...

PT-2026-64580

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the nilfs2 file system where user-supplied segment numbers are not validated before the nilfs clean segments function begins processing. The range check is performed...

PT-2026-64611

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ksmbd module where byte-range locks are not correctly tracked across connections. When using SMB3 multichannel, the connection that handles a SMB2 LOCK request may...

PT-2026-64742

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A deadlock can occur when accessing the pinconf-pins sysfs node. This happens because the pinconf pins show function holds the pctldev-mutex, and the platform driver subsequently calls...