The dispatch_discard_io function in drivers/block/xen...
Low severity
Unreviewed
Published
May 17, 2022
to the GitHub Advisory Database
•
Updated Feb 21, 2023
Description
Published by the National Vulnerability Database
Sep 25, 2013
Published to the GitHub Advisory Database
May 17, 2022
Last updated
Feb 21, 2023
The dispatch_discard_io function in drivers/block/xen-blkback/blkback.c in the Xen blkback implementation in the Linux kernel before 3.10.5 allows guest OS users to cause a denial of service (data loss) via filesystem write operations on a read-only disk that supports the (1) BLKIF_OP_DISCARD (aka discard or TRIM) or (2) SCSI UNMAP feature.
References