In the Linux kernel, the following vulnerability has been resolved: ceph: put folios not suitable for writeback The batch holds references to the folios (see `filemap_get_folios`, `folio_batch_release`), so we need to `folio_put` the folios we remove. Tested on v6.18.
https://git.kernel.org/stable/c/86921e890fe1dea9791fb70bec552516fd47716a
https://git.kernel.org/stable/c/544576f0f05c4a759806acddfaaeb686f14fb4b0