CVE-2024-43828

In the Linux kernel, the following vulnerability has been resolved: ext4: fix infinite loop when replaying fast_commit When doing fast_commit replay an infinite loop may occur due to an uninitialized extent_status struct. ext4_ext_determine_insert_hole() does not detect the replay and calls ext4_es_find_extent_range(), which will return immediately without initializing the 'es' variable. Because 'es' contains garbage, an integer overflow may happen causing an infinite loop in this function, easily reproducible using fstest generic/039. This commit fixes this issue by unconditionally initializing the structure in function ext4_es_find_extent_range(). Thanks to Zhang Yi, for figuring out the real problem!

The following products are affected by CVE-2024-43828 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-43828.

URL	Resource
https://git.kernel.org/stable/c/0619f7750f2b178a1309808832ab20d85e0ad121
https://git.kernel.org/stable/c/181e63cd595c688194e07332f9944b3a63193de2
https://git.kernel.org/stable/c/5ed0496e383cb6de120e56991385dce70bbb87c1
https://git.kernel.org/stable/c/81f819c537d29932e4b9267f02411cbc8b355178
https://git.kernel.org/stable/c/907c3fe532253a6ef4eb9c4d67efb71fab58c706
https://git.kernel.org/stable/c/c6e67df64783e99a657ef2b8c834ba2bf54c539c
https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
https://lore.kernel.org/linux-cve-announce/2024081726-CVE-2024-43828-6bcb@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-43828
https://www.cve.org/CVERecord?id=CVE-2024-43828