CVE-2026-7007

The CVE-2026-7007 issue affects Zephyr ext2: the on-disk superblock validation did not require non-zero values for s_blocks_per_group and s_inodes_per_group. If either field is zero, get_ngroups() and get_itable_entry() perform divisions using those fields during mount, triggering a divide-by-zer...

CVE-2026-7007 Division by zero in Zephyr ext2 superblock parsing allows DoS via crafted filesystem image

The Zephyr ext2 file system validates the on-disk superblock in ext2verifydisksuperblock subsys/fs/ext2/ext2impl.c before completing a mount. The validator checked the magic number, block size, revision and feature flags, but did not verify that the on-disk fields sblockspergroup and...

PT-2026-64305

Name of the Vulnerable Software and Affected Versions Zephyr affected versions not specified Description The ext2 file system fails to verify that the on-disk superblock fields s blocks per group and s inodes per group are non-zero during the mount process in the ext2 verify disk superblock...

CVE-2026-7007: Divide By Zero

The Zephyr ext2 file system validates the on-disk superblock in ext2verifydisksuperblock subsys/fs/ext2/ext2impl.c before completing a mount. The validator checked the magic number, block size, revision and feature flags, but did not verify that the on-disk fields sblockspergroup and...

CVE-2026-53129

In the Linux kernel, the following vulnerability has been resolved: fs/mbcache: cancel shrink work before destroying the cache mbcachedestroy calls shrinkerfree and then frees all cache entries and the cache itself, but it does not cancel the pending cshrinkwork work item first. If...

CVE-2026-53129 fs/mbcache: cancel shrink work before destroying the cache

In the Linux kernel, the following vulnerability has been resolved: fs/mbcache: cancel shrink work before destroying the cache mbcachedestroy calls shrinkerfree and then frees all cache entries and the cache itself, but it does not cancel the pending cshrinkwork work item first. If...

Linux Distros Unpatched Vulnerability : CVE-2026-10645

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The Zephyr ext2 filesystem driver subsys/fs/ext2 trusted the on-disk directory entry fields dereclen and denamelen when walking a directory block...

UBUNTU-CVE-2026-10645

The Zephyr ext2 filesystem driver subsys/fs/ext2 trusted the on-disk directory entry fields dereclen and denamelen when walking a directory block. ext2fetchdirentry guarded only with denamelen EXT2MAXFILENAME, but denamelen is a uint8t and EXT2MAXFILENAME is 255, so the check is always false; the...

CVE-2026-10645

The Zephyr ext2 filesystem driver subsys/fs/ext2 trusted the on-disk directory entry fields dereclen and denamelen when walking a directory block. ext2fetchdirentry guarded only with denamelen EXT2MAXFILENAME, but denamelen is a uint8t and EXT2MAXFILENAME is 255, so the check is always false; the...

CVE-2026-10645: Out-of-bounds Read

Zephyr's ext2 directory-entry parser does not fully validate on-disk directory entry structure before copying the entry name and advancing traversal state. In ext2fetchdirentry subsys/fs/ext2/ext2diskops.c, the code only checks denamelen = EXT2MAXFILENAME and then copies the name with memcpy...

CVE-2026-10645 Out-of-bounds read in Zephyr ext2 directory entry traversal from a crafted filesystem image

The Zephyr ext2 filesystem driver subsys/fs/ext2 trusted the on-disk directory entry fields dereclen and denamelen when walking a directory block. ext2fetchdirentry guarded only with denamelen EXT2MAXFILENAME, but denamelen is a uint8t and EXT2MAXFILENAME is 255, so the check is always false; the...

CVE-2026-10645

Technical details are not publicly available in the provided documents. Monitor for updates on CVE-2026-10645; no additional specifics on affected products or fixes are provided here.

CVE-2026-10645

The Zephyr ext2 filesystem driver subsys/fs/ext2 trusted the on-disk directory entry fields dereclen and denamelen when walking a directory block. ext2fetchdirentry guarded only with denamelen EXT2MAXFILENAME, but denamelen is a uint8t and EXT2MAXFILENAME is 255, so the check is always false; the...

PT-2026-51425

Zephyr's ext2 directory-entry parser does not fully validate on-disk directory entry structure before copying the entry name and advancing traversal state. In ext2 fetch direntry subsys/fs/ext2/ext2 diskops.c, the code only checks de name len = EXT2 MAX FILE NAME and then copies the name with...

SUSE CVE-2026-46002

In the Linux kernel, the following vulnerability has been resolved: ext2: reject inodes with zero inlink and valid mode in ext2iget ext2iget already rejects inodes with inlink == 0 when imode is zero or idtime is set, treating them as deleted. However, the case of inlink == 0 with a non-zero mode...

CVE-2026-46002

In the Linux kernel, the following vulnerability has been resolved: ext2: reject inodes with zero inlink and valid mode in ext2iget ext2iget already rejects inodes with inlink == 0 when imode is zero or idtime is set, treating them as deleted. However, the case of inlink == 0 with a non-zero mode...

AZL-88626 CVE-2026-46002 affecting package kernel for versions less than 6.6.141.1-1

In the Linux kernel, the following vulnerability has been resolved: ext2: reject inodes with zero inlink and valid mode in ext2iget ext2iget already rejects inodes with inlink == 0 when imode is zero or idtime is set, treating them as deleted. However, the case of inlink == 0 with a non-zero mode...

UBUNTU-CVE-2026-46002

In the Linux kernel, the following vulnerability has been resolved: ext2: reject inodes with zero inlink and valid mode in ext2iget ext2iget already rejects inodes with inlink == 0 when imode is zero or idtime is set, treating them as deleted. However, the case of inlink == 0 with a non-zero mode...

CVE-2026-46002 ext2: reject inodes with zero i_nlink and valid mode in ext2_iget()

In the Linux kernel, the following vulnerability has been resolved: ext2: reject inodes with zero inlink and valid mode in ext2iget ext2iget already rejects inodes with inlink == 0 when imode is zero or idtime is set, treating them as deleted. However, the case of inlink == 0 with a non-zero mode...

EUVD-2026-32298

In the Linux kernel, the following vulnerability has been resolved: ext2: reject inodes with zero inlink and valid mode in ext2iget ext2iget already rejects inodes with inlink == 0 when imode is zero or idtime is set, treating them as deleted. However, the case of inlink == 0 with a non-zero mode...