Tracker / CVE-2024-40972
CVE-2024-40972
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: ext4: do not create EA inode under buffer lock ext4_xattr_set_entry() creates new EA inodes while holding buffer lock on the external xattr block. This is problematic as it nests all the allocation locking (which acquires locks on other buffers) under the buffer lock. This can even deadlock when the filesystem is corrupted and e.g. quota file is setup to contain xattr block as data block. Move the allocation of EA inode out of ext4_xattr_set_entry() into the callers.
Affected products and versions
| linux | linux_kernel · … → 6.1.107 |
|---|---|
| linux | linux_kernel · 6.2 → 6.6.47 |
| linux | linux_kernel · 6.7 → 6.9.7 |
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.