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Joshua Washington d01f39f73b gve: ignore nonrelevant GSO type bits when processing TSO headers 
[ Upstream commit 1b9f756344 ]

TSO currently fails when the skb's gso_type field has more than one bit
set.

TSO packets can be passed from userspace using PF_PACKET, TUNTAP and a
few others, using virtio_net_hdr (e.g., PACKET_VNET_HDR). This includes
virtualization, such as QEMU, a real use-case.

The gso_type and gso_size fields as passed from userspace in
virtio_net_hdr are not trusted blindly by the kernel. It adds gso_type
|= SKB_GSO_DODGY to force the packet to enter the software GSO stack
for verification.

This issue might similarly come up when the CWR bit is set in the TCP
header for congestion control, causing the SKB_GSO_TCP_ECN gso_type bit
to be set.

Fixes: a57e5de476 ("gve: DQO: Add TX path")
Signed-off-by: Joshua Washington <joshwash@google.com>
Reviewed-by: Praveen Kaligineedi <pkaligineedi@google.com>
Reviewed-by: Harshitha Ramamurthy <hramamurthy@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Suggested-by: Eric Dumazet <edumazet@google.com>
Acked-by: Andrei Vagin <avagin@gmail.com>

v2 - Remove unnecessary comments, remove line break between fixes tag
and signoffs.

v3 - Add back unrelated empty line removal.

Link: https://lore.kernel.org/r/20240610225729.2985343-1-joshwash@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-06-21 14:38:35 +02:00
arch x86/uaccess: Fix missed zeroing of ia32 u64 get_user() range checking 2024-06-21 14:38:34 +02:00
block blk-cgroup: Properly propagate the iostat update up the hierarchy 2024-06-12 11:12:46 +02:00
certs certs: Reference revocation list for all keyrings 2023-08-17 20:12:41 +00:00
crypto crypto: ecrdsa - Fix module auto-load on add_key 2024-06-16 13:47:39 +02:00
Documentation mm: fix race between __split_huge_pmd_locked() and GUP-fast 2024-06-16 13:47:40 +02:00
drivers gve: ignore nonrelevant GSO type bits when processing TSO headers 2024-06-21 14:38:35 +02:00
fs NFS: add barriers when testing for NFS_FSDATA_BLOCKED 2024-06-21 14:38:29 +02:00
include net: pse-pd: Use EOPNOTSUPP error code instead of ENOTSUPP 2024-06-21 14:38:34 +02:00
init smp: Provide 'setup_max_cpus' definition on UP too 2024-06-16 13:47:49 +02:00
io_uring io_uring/io-wq: avoid garbage value of 'match' in io_wq_enqueue() 2024-06-21 14:38:30 +02:00
ipc Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
kernel bpf: fix multi-uprobe PID filtering logic 2024-06-21 14:38:22 +02:00
lib lib/test_hmm.c: handle src_pfns and dst_pfns allocation failure 2024-06-12 11:12:08 +02:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm/memory-failure: fix handling of dissolved but not taken off from buddy pages 2024-06-21 14:38:21 +02:00
net netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type 2024-06-21 14:38:34 +02:00
rust rust: kernel: require Send for Module implementations 2024-05-17 12:01:56 +02:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-23 09:24:47 +01:00
scripts modpost: do not warn about missing MODULE_DESCRIPTION() for vmlinux.o 2024-06-21 14:38:32 +02:00
security landlock: Fix d_parent walk 2024-06-21 14:38:24 +02:00
sound ALSA: seq: Fix incorrect UMP type for system messages 2024-06-16 13:47:48 +02:00
tools selftests/tracing: Fix event filter test to retry up to 10 times 2024-06-21 14:38:29 +02:00
usr initramfs: Encode dependency on KBUILD_BUILD_TIMESTAMP 2023-06-06 17:54:49 +09:00
virt KVM: Always flush async #PF workqueue when vCPU is being destroyed 2024-04-03 15:28:18 +02:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: rpm-pkg: rename binkernel.spec to kernel.spec 2023-07-25 00:59:33 +09:00
.mailmap 20 hotfixes. 12 are cc:stable and the remainder address post-6.5 issues 2023-10-24 09:52:16 -10:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS USB: Remove Wireless USB and UWB documentation 2023-08-09 14:17:32 +02:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS pwm: Rename pwm_apply_state() to pwm_apply_might_sleep() 2024-06-12 11:12:24 +02:00
Makefile Linux 6.6.34 2024-06-16 13:47:49 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.