CVE-2026-63810

In CVE-2026-63810, the Linux kernel fixed a vulnerability in the block subsystem by unregistering the bdev pseudo-filesystem to prevent userspace from mounting it. The issue arose because move_mount() could use inode_operations pointers that were always zero for this filesystem, enabling a NULL p...

CVE-2026-63810 block: Avoid mounting the bdev pseudo-filesystem in userspace

In the Linux kernel, the following vulnerability has been resolved: block: Avoid mounting the bdev pseudo-filesystem in userspace The bdev pseudo-filesystem is an internal kernel filesystem with which userspace should not interfere. Unregister it so that userspace cannot even attempt to mount it...

CVE-2026-63810

In the Linux kernel, the following vulnerability has been resolved: block: Avoid mounting the bdev pseudo-filesystem in userspace The bdev pseudo-filesystem is an internal kernel filesystem with which userspace should not interfere. Unregister it so that userspace cannot even attempt to mount it...

CVE-2026-63808 exfat: fix potential use-after-free in exfat_find_dir_entry()

In the Linux kernel, the following vulnerability has been resolved: exfat: fix potential use-after-free in exfatfinddirentry In exfatfinddirentry, the bufferhead obtained from exfatgetdentry is released with brelsebh before the fall-through TYPEEXTEND branch reads the directory entry through ep...

CVE-2026-63796

In the Linux kernel, the following vulnerability has been resolved: ocfs2: reject oversized group bitmap descriptors ocfs2validategdparent only bounds bgbits against the parent allocator's chain geometry. A malicious descriptor can still claim a bgsize/bgbits pair that exceeds the bitmap bytes th...

CVE-2026-63795

CVE-2026-63795 affects the Linux kernel 9p client implementation. The issue occurs when p9_client_walk() is called with clone=false and the fid aliases oldfid; if the walk fails after a request is sent, the error path may clunk the fid and destroy oldfid even when the caller still owns it, causin...

EUVD-2026-45461

In the Linux kernel, the following vulnerability has been resolved: 9p: avoid putting oldfid in p9clientwalk error path When p9clientwalk is called with clone set to false, fid aliases oldfid. If the walk subsequently fails after the request has been sent, the error path jumps to clunkfid, which...

CVE-2026-63793

In the Linux kernel, the following vulnerability has been resolved: ntfs: serialize volume label accesses Protect vol-volumelabel with a mutex and snaphost the label before copytouser. This prevent a use-after-free when FSIOCSETFSLABEL replaces the vol-volumelabel and FSIOCGETTSLABEL reads it...

EUVD-2026-45438

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix fsck inconsistency caused by incorrect natentry flag usage f2fsneeddentrymark reads natentry flags without mutual exclusion with the checkpoint path, which can result in an incorrect inode block marking state. The...

CVE-2026-53368

CVE-2026-53368 concerns the Linux kernel f2fs filesystem. Multiple sources describe a fix for fsck inconsistency caused by incorrect nat_entry flag handling during checkpoint sequencing. The root cause is that f2fs_need_dentry_mark() reads nat_entry flags without mutual exclusion with the checkpo...

PT-2026-61379

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A potential deadlock exists in the netfs component when operating in write-through mode. The issue occurs within the netfs advance writethrough function, where a failure to consistently...

PT-2026-61474

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfs invalidate folio function where partial invalidation of a streaming-write folio is handled incorrectly. When a partial invalidation region overlaps the front...

PT-2026-61374

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The afs filesystem in the kernel implements incorrect locking for symbolic links. This leads to several issues, including a lack of locking around the afs read single function, which can...

Linux Distros Unpatched Vulnerability : CVE-2026-63810

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - block: Avoid mounting the bdev pseudo-filesystem in userspace The bdev pseudo-filesystem is an internal kernel filesystem with which userspace should not...

PT-2026-61383

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfs read to pagecache function where the system fails to pause the generation of new subrequests when a previously issued subrequest fails. Recommendations At th...

PT-2026-61377

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak occurs in the netfs write begin function during error handling. Specifically, the system fails to release the reference to the request when an error is returned from the...

PT-2026-61385

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfs component where locking is missing when adding new subrequests. Specifically, the functions netfs retry read subrequests and netfs retry write stream fail to...

CVE-2026-63810: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: block: Avoid mounting the bdev pseudo-filesystem in userspace The bdev pseudo-filesystem is an internal kernel filesystem with which userspace should not interfere. Unregister it so that userspace cannot even attempt to mount it...

PT-2026-61109

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the NTFS driver due to a lack of serialization when accessing volume labels. This occurs when the FS IOC SETFSLABEL operation replaces the vol-volume lab...

PT-2026-61384

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfs component where the list of subrequests attached to stream-subrequests is accessed without locks by the functions netfs collect read results and netfs collec...