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Maxime Coquelin 71bd0cc536 vhost: discard too small descriptor chains 
This patch discards descriptor chains which are smaller
than the Virtio-net header size, and ones that are equal.

Indeed, such descriptor chains sizes mean there is no
packet data.

This patch also has the advantage of requesting the exact
packets sizes for the mbufs.

CVE-2022-2132
Fixes: 62250c1d09 ("vhost: extract split ring handling from Rx and Tx functions")
Fixes: c3ff0ac70a ("vhost: improve performance by supporting large buffer")
Fixes: 84d5204310 ("vhost: support async dequeue for split ring")
Cc: stable@dpdk.org

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Chenbo Xia <chenbo.xia@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2022-08-29 15:12:13 +02:00
.ci ci: add RISC-V cross compilation 2022-06-08 11:26:34 +02:00
.github/workflows test: invoke all telemetry commands 2022-08-25 16:23:17 +02:00
app test: invoke all telemetry commands 2022-08-25 16:23:17 +02:00
buildtools build: add definitions for use as Meson subproject 2022-06-07 20:49:20 +02:00
config sched: enable congestion management at runtime 2022-08-25 16:18:06 +02:00
devtools version: 22.11-rc0 2022-07-21 12:13:48 +02:00
doc version: 22.11-rc0 2022-07-21 12:13:48 +02:00
drivers net/mlx5: fix Rx queue recovery mechanism 2022-08-29 12:53:49 +02:00
examples sched: enable congestion management at runtime 2022-08-25 16:18:06 +02:00
kernel kni: use dedicated function to set MAC address 2022-06-08 19:17:21 +02:00
lib vhost: discard too small descriptor chains 2022-08-29 15:12:13 +02:00
license lib: remove librte_ prefix from directory names 2021-04-21 14:04:09 +02:00
usertools usertools: add options for hugetlbfs mount point owner 2022-06-27 02:24:12 +02:00
.editorconfig devtools: clarify that lines up to 100 characters are ok 2021-11-25 11:51:24 +01:00
.gitattributes improve git diff 2016-11-13 15:25:12 +01:00
.gitignore doc: add eventdev feature matrices 2021-11-26 16:29:25 +01:00
.travis.yml version: 22.11-rc0 2022-07-21 12:13:48 +02:00
ABI_VERSION version: 22.11-rc0 2022-07-21 12:13:48 +02:00
MAINTAINERS maintainers: update for octeontx_ep driver 2022-07-13 13:49:33 +02:00
Makefile build: create dummy Makefile 2020-09-07 23:51:57 +02:00
meson_options.txt config: add option for atomic mbuf reference counting 2021-10-25 17:53:30 +02:00
meson.build build: enable developer mode for all working trees 2022-08-29 12:53:49 +02:00
README license: introduce SPDX identifiers 2018-01-04 22:41:38 +01:00
VERSION version: 22.11-rc0 2022-07-21 12:13:48 +02:00

README 

DPDK is a set of libraries and drivers for fast packet processing.
It supports many processor architectures and both FreeBSD and Linux.

The DPDK uses the Open Source BSD-3-Clause license for the core libraries
and drivers. The kernel components are GPL-2.0 licensed.

Please check the doc directory for release notes,
API documentation, and sample application information.

For questions and usage discussions, subscribe to: users@dpdk.org
Report bugs and issues to the development mailing list: dev@dpdk.org