In the Linux kernel, the following vulnerability has been resolved:btrfs: fix extent map use-after-free when adding pages to compressed bioAt add_ra_bio_pages() we are accessing the extent map to calculate'add_size' after we dropped our reference on the extent map, resultingin a use-after-free. Fix this by computing 'add_size' before dropping ourextent map reference.
No PoCs from references.
- https://github.com/robertsirc/sle-bci-demo