Tracker / CVE-2023-53055
CVE-2023-53055
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: fscrypt: destroy keyring after security_sb_delete() fscrypt_destroy_keyring() must be called after all potentially-encrypted inodes were evicted; otherwise it cannot safely destroy the keyring. Since inodes that are in-use by the Landlock LSM don't get evicted until security_sb_delete(), this means that fscrypt_destroy_keyring() must be called *after* security_sb_delete(). This fixes a WARN_ON followed by a NULL dereference, only possible if Landlock was being used on encrypted files.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.10.154 → 5.11 |
| linux | linux_kernel · 5.15.78 → 5.15.105 |
| linux | linux_kernel · 6.0.8 → 6.1.22 |
| linux | linux_kernel · 6.2 → 6.2.9 |
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.