CVE-2026-80857

In the Linux kernel, the following vulnerability has been resolved: fuse: wait for FRFINISHED on abortonkill to prevent use-after-free The abortonkill path in requestwaitanswer calls fuseabortconn and returns without waiting for FRFINISHED. If fusedevdowrite is concurrently processing the same...

CVE-2026-80820 xfs: don't livelock in scrub on a circular unlinked list

In the Linux kernel, the following vulnerability has been resolved: xfs: don't livelock in scrub on a circular unlinked list LOLLM points out that online fsck can livelock if an unlinked inode list contains a loop. Use a bitmap to detect cycles...

CVE-2026-80809 ocfs2: fix missing metadata reservation for large xattrs

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix missing metadata reservation for large xattrs BUG lsetxattr panics the kernel when setting a large xattr value on a fragmented filesystem where the file already has an external xattr block. CAUSE ocfs2calcxattrsetneed...

CVE-2026-80809 ocfs2: fix missing metadata reservation for large xattrs

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix missing metadata reservation for large xattrs BUG lsetxattr panics the kernel when setting a large xattr value on a fragmented filesystem where the file already has an external xattr block. CAUSE ocfs2calcxattrsetneed...

CVE-2026-80809

CVE-2026-80809 affects the Linux kernel's ocfs2 filesystem . The root cause is that ocfs2_calc_xattr_set_need() fails to reserve metadata blocks for a new xattr value's extent tree when the file already has an external xattr block, leaving meta_ac as NULL. On a fragmented filesystem , this causes...

CVE-2026-80809

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix missing metadata reservation for large xattrs BUG lsetxattr panics the kernel when setting a large xattr value on a fragmented filesystem where the file already has an external xattr block. CAUSE ocfs2calcxattrsetneed...

CVE-2026-80808

CVE-2026-80808 affects the Linux kernel ext4 filesystem. The bug is in ext4_xattr_block_set() , which retries indefinitely when an mbcache entry selected for reuse has a saturated reference count (≥ EXT4_XATTR_REFCOUNT_MAX , 1024). Normally this invariant holds because the count and MBE_REUSABLE_...

EUVD-2026-71243

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-2026-80808 ext4: stop retrying saturated xattr cache entries

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-2026-80807

In the Linux kernel, the following vulnerability has been resolved: nilfs2: reject invalid block index in GC ioctl Syzbot reported list corruption caused by a double listaddtail call on bh-bassocbuffers within nilfslookupdirtydatabuffers. Analysis revealed that the root cause was the insertion of...

EUVD-2026-71241

In the Linux kernel, the following vulnerability has been resolved: ext4: don't enable DAX on new encrypted files Currently, when a new encrypted regular file is created, the call to ext4setinodeflagsinode, init=true in ext4newinode is made before EXT4INODEENCRYPT is set. As a result, it can set...

CVE-2026-80806

CVE-2026-80806 is a flaw in the Linux kernel's ext4 filesystem where newly created encrypted files could incorrectly have the DAX (Direct Access) flag enabled when the filesystem is mounted with -o dax=always. The root cause is a timing issue in __ext4_new_inode(): the call to ext4_set_inode_flag...

CVE-2026-80806

In the Linux kernel, the following vulnerability has been resolved: ext4: don't enable DAX on new encrypted files Currently, when a new encrypted regular file is created, the call to ext4setinodeflagsinode, init=true in ext4newinode is made before EXT4INODEENCRYPT is set. As a result, it can set...

EUVD-2026-71240

In the Linux kernel, the following vulnerability has been resolved: xfs: validate attr entry pointer before field access xfsattr3leafverifyentry accesses lentry/rentry fields namelen, valuelen before checking if the entry pointer itself is within bounds. If nameidx is crafted to point near the en...

CVE-2026-80805

In the Linux kernel, the following vulnerability has been resolved: xfs: validate attr entry pointer before field access xfsattr3leafverifyentry accesses lentry/rentry fields namelen, valuelen before checking if the entry pointer itself is within bounds. If nameidx is crafted to point near the en...

EUVD-2026-71239

In the Linux kernel, the following vulnerability has been resolved: xfs: restore nofs context unconditionally in xfstransroll When xfstranscommit fails in xfstransroll, the NOFS context is cleared but only restored in the success path. This leaves the error path without nofs protection, causing a...

CVE-2026-80804 xfs: restore nofs context unconditionally in xfs_trans_roll

In the Linux kernel, the following vulnerability has been resolved: xfs: restore nofs context unconditionally in xfstransroll When xfstranscommit fails in xfstransroll, the NOFS context is cleared but only restored in the success path. This leaves the error path without nofs protection, causing a...

CVE-2026-80804

In the Linux kernel, the following vulnerability has been resolved: xfs: restore nofs context unconditionally in xfstransroll When xfstranscommit fails in xfstransroll, the NOFS context is cleared but only restored in the success path. This leaves the error path without nofs protection, causing a...

fence v0.1.67

Fence wraps commands in a sandbox that blocks network access by default and restricts filesystem operations based on configurable rules. It's most useful for running semi-trusted code package installs, build scripts, CI jobs, unfamiliar repos with controlled side effects, and it can also compleme...

kernel: exfat: fix potential use-after-free in exfat_find_dir_entry()

A flaw was found in the Linux kernel's exFAT filesystem driver. A local attacker could exploit a use-after-free vulnerability in the exfatfinddirentry function. This occurs because a buffer is prematurely released while still being referenced, which can be triggered by processing a specially...