Tracker / CVE-2023-52804
CVE-2023-52804
High 7.8
In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add validity check for db_maxag and db_agpref Both db_maxag and db_agpref are used as the index of the db_agfree array, but there is currently no validity check for db_maxag and db_agpref, which can lead to errors. The following is related bug reported by Syzbot: UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:639:20 index 7936 is out of range for type 'atomic_t[128]' Add checking that the values of db_maxag and db_agpref are valid indexes for the db_agfree array.
Affected products and versions
| linux | linux_kernel · … → 4.14.331 |
|---|---|
| linux | linux_kernel · 4.15 → 4.19.300 |
| linux | linux_kernel · 4.20 → 5.4.262 |
| linux | linux_kernel · 5.11 → 5.15.140 |
| linux | linux_kernel · 5.16 → 6.1.64 |
| linux | linux_kernel · 5.5 → 5.10.202 |
| linux | linux_kernel · 6.2 → 6.5.13 |
| linux | linux_kernel · 6.6 → 6.6.3 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.