In the Linux kernel, the following vulnerability has been resolved:
VDUSE: avoid leaking information to userspace
The bounceing is not necessarily page aligned, so current VDUSE can
leak kernel information through mapping bounce pages to
userspace. Allocate bounce pages with __GFP_ZERO to avoid leaking
information to userspace.
References 7
https://git.kernel.org/stable/c/00335df9da2011e095f846d645cc2e9fd2907659
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/690fb82c4122f8c2656fa4f842275132771b68b9
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9c1523803445ee0348f62b77793266dd981596e0
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fde25641cbddd0c084e3320d08f755e7e6acfae5
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3ae878f262bd1445c8c31511856a99962a05fe16
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/41e27a6aca608c9e04f091c29c420d03fafe0313
416baaa9-dc9f-4396-8d5f-8c081fb06d67