CVE-2024-47736 erofs: handle overlapped pclusters out of crafted images properly

In the Linux kernel, the following vulnerability has been resolved: erofs: handle overlapped pclusters out of crafted images properly syzbot reported a task hang issue due to a deadlock case where it is waiting for the folio lock of a cached folio that will be used for cache I/Os. After looking...

CVE-2024-47736

CVE-2024-47736 relates to the Linux kernel EROFS handling of overlapped pclusters in crafted images. The issue caused a potential task hang/deadlock while waiting on the folio lock during cache I/O, triggered by fuzzed images with overlapping big pclusters. Root causes described include mis-arran...