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IronMonkey Threat Research

CVE-2025-68820 NONE

Published: 2026-01-13 | Last Modified: 2026-07-14 | Status: Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: xattr: fix null pointer deref in ext4_raw_inode() If ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED), iloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all() lacks error checking, this will lead to a null pointer dereference in ext4_raw_inode(), called right after ext4_get_inode_loc(). Found by Linux Verification Center (linuxtesting.org) with SVACE.

Additional Descriptions (1)

En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: ext4: xattr: corregir desreferencia de puntero nulo en ext4_raw_inode() Si ext4_get_inode_loc() falla (p. ej., si devuelve -EFSCORRUPTED), iloc.bh permanecerá establecido en NULL. Dado que ext4_xattr_inode_dec_ref_all() carece de comprobación de errores, esto conducirá a una desreferencia de puntero nulo en ext4_raw_inode(), llamada justo después de ext4_get_inode_loc(). Encontrado por Linux Verification Center (linuxtesting.org) con SVACE.

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