CVE-2026-34962 — barebox ext4 Directory Parsing Infinite Loop Denial of Service
barebox version prior to 2026.04.0 contains a denial-of-service vulnerability in ext4 directory parsing in fs/ext4/ext4_common.c where the ext4fs_iterate_dir() function fails to…
Published: 2026-05-11 · CVSS: 6.9 · CVSS 4.0
barebox version prior to 2026.04.0 contains a denial-of-service vulnerability in ext4 directory parsing in fs/ext4/ext4_common.c where the ext4fs_iterate_dir() function fails to validate that directory entry length values are non-zero. Attackers can supply a malicious ext4 filesystem image with a crafted directory entry containing a direntlen value of 0 to cause an infinite loop during directory listing or path resolution, resulting in the boot process hanging indefinitely.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7