Description
In the Linux kernel, the following vulnerability has been resolved: xsk: validate metadata when processing requests The zero-copy path validates TX metadata while obtaining the descriptor context, then reads it again later when preparing the hardware request. User space can change the metadata between those operations and bypass the original validation. Validate the metadata in xsk_tx_metadata_request() and use the resulting flags snapshot for every feature check. Read request fields once so all zero-copy drivers process only values observed after successful validation.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 to < 5fd121971912dee2f5af1efec64462ac722deb17affectedca4419f15abd19ba8be1e109661b60f9f5b6c9f0 to < 0cc7aa6e0d19027fdd42e6fbd156267ac1e3bbbaaffectedca4419f15abd19ba8be1e109661b60f9f5b6c9f0 to < 849b1664dbda1cf6c63e0fd4f9dec23782b8c851affectedd9d736c416c9a85f84e15435ba82a177262e745baffected6.14.2 to < 6.15affected
Linux Linux
Default version status: affected
6.15affected0 to < 6.15unaffected6.18.45 to ≤ 6.18.*unaffected7.1.9 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected