CVE-2026-7007

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-2026-7007

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...

CVE-2026-7007

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...