CVE-2025-70101

An out-of-bounds read in the ext4extbinsearchidx function in src/ext4extent.c of the lwext4 1.0.0 library allows attackers to cause a denial of service by supplying a specially crafted ext4 filesystem image. The vulnerability occurs due to insufficient validation of extent header fields before...

CVE-2025-70100

A divide-by-zero vulnerability in the ext4blocksetlbsize function in src/ext4blockdev.c of the lwext4 1.0.0 library allows attackers to cause a denial of service by providing a malformed ext4 filesystem image that results in a zero logical block size. The vulnerability is triggered during mount o...

PT-2026-45935

Name of the Vulnerable Software and Affected Versions lwext4 version 1.0.0 Description An out-of-bounds read exists in the ext4 ext binsearch idx function within the src/ext4 extent.c file. This occurs because extent header fields are not sufficiently validated before a binary search is performed...

CVE-2025-70099

A NULL pointer dereference in the ext4direngetnamelen function in include/ext4dir.h of lwext4 1.0.0 allows attackers to cause a denial of service by supplying a specially crafted EXT4 filesystem image with malformed directory entries. During directory iteration, the code may fail to validate the...

CVE-2025-70099

A NULL pointer dereference in the ext4direngetnamelen function in include/ext4dir.h of lwext4 1.0.0 allows attackers to cause a denial of service by supplying a specially crafted EXT4 filesystem image with malformed directory entries. During directory iteration, the code may fail to validate the...

PT-2026-45548

A NULL pointer dereference in the ext4 dir en get name len function in include/ext4 dir.h of lwext4 1.0.0 allows attackers to cause a denial of service by supplying a specially crafted EXT4 filesystem image with malformed directory entries. During directory iteration, the code may fail to validat...