DEBIAN-CVE-2023-53860

In the Linux kernel, the following vulnerability has been resolved: dm: don't attempt to queue IO under RCU protection dm looks up the table for IO based on the request type, with an assumption that if the request is marked REQNOWAIT, it's fine to attempt to submit that IO while under RCU read lo...

CVE-2023-53860

CVE-2023-53860: Linux kernel vulnerability in dm code where IO may be queued under RCU protection when REQ_NOWAIT is set. Affected behavior arises from dm looking up IO tables by request type and assuming REQ_NOWAIT implies safe scheduling under RCU read lock, which is incorrect. A sample preadv2...