Description
The total size of the user-provided nmreq to nmreq_copyin() was first computed and then trusted during the copyin. This time-of-check to time-of-use bug could lead to kernel memory corruption. On systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
FreeBSD FreeBSD
Default version status: unknown
13.1-RC1 to < p1affected13.0-RELEASE to < p11affected12.3-RELEASE to < p5affected