CVE-2026-46046: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() The commit c8e008b60492 ("ext4: ignore xattrs past end") introduced a refcount leak in when block_csum is false. ext4_xattr_inode_dec_ref_all() calls ext4_get_inode_loc() to get iloc.bh, but never releases it with brelse().

Affected products

• Linux Linux Kernel: from 5.4.293, before 5.5 (fixed in 5.5); from 5.10.237, before 5.10.258 (fixed in 5.10.258); from 5.15.181, before 5.15.209 (fixed in 5.15.209); from 6.1.135, before 6.1.175 (fixed in 6.1.175); from 6.6.88, before 6.6.140 (fixed in 6.6.140); from 6.12.24, before 6.12.86 (fixed in 6.12.86); …

Published 2026-05-27. Last modified 2026-09-08.