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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-34961

barebox ext4 Extent Parsing Out-of-Bounds Read

Description

barebox prior to version 2026.04.0 contains out-of-bounds read vulnerabilities in ext4 extent parsing due to missing validation of the eh_entries field against buffer capacity in fs/ext4/ext4_common.c. Attackers can supply a malicious ext4 filesystem image via USB, SD card, or network boot to trigger heap out-of-bounds reads during boot-time filesystem parsing, potentially redirecting reads to arbitrary disk offsets.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

barebox barebox

Default version status: unaffected

  • 0 to < 2026.04.0affected

References