Description
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix copy-to-cache so that it performs collection with ceph+fscache The netfs copy-to-cache that is used by Ceph with local caching sets up a new request to write data just read to the cache. The request is started and then left to look after itself whilst the app continues. The request gets notified by the backing fs upon completion of the async DIO write, but then tries to wake up the app because NETFS_RREQ_OFFLOAD_COLLECTION isn't set - but the app isn't waiting there, and so the request just hangs. Fix this by setting NETFS_RREQ_OFFLOAD_COLLECTION which causes the notification from the backing filesystem to put the collection onto a work queue instead.
Product status
e2d46f2ec332533816417b60933954173f602121 before 1ebe58cef84eab22b41b4d5e72c2051ebf00af50
e2d46f2ec332533816417b60933954173f602121 before 4c238e30774e3022a505fa54311273add7570f13
6.14
Any version before 6.14
6.15.8
6.16
References
git.kernel.org/...c/1ebe58cef84eab22b41b4d5e72c2051ebf00af50
git.kernel.org/...c/4c238e30774e3022a505fa54311273add7570f13
