Threats tagged 'ghsa-8rhx-6jcw-6ghv'

CVE-2025-37839 is a vulnerability in the Linux kernel's jbd2 journaling subsystem caused by an incorrect check of the superblock sequence number (sb->s_sequence). The vulnerability arises because the code incorrectly uses sb->s_sequence == 0 to determine journal emptiness, whereas the correct check should be sb->s_start == 0. Since 0 is a valid transaction ID, the faulty check can trigger spurious warnings. This issue has been resolved by removing the invalid check.