android_kernel_oneplus_msm8998/include
Willem de Bruijn 58691e5b4f net: introduce device min_header_len
[ Upstream commit 217e6fa24ce28ec87fca8da93c9016cb78028612 ]

The stack must not pass packets to device drivers that are shorter
than the minimum link layer header length.

Previously, packet sockets would drop packets smaller than or equal
to dev->hard_header_len, but this has false positives. Zero length
payload is used over Ethernet. Other link layer protocols support
variable length headers. Support for validation of these protocols
removed the min length check for all protocols.

Introduce an explicit dev->min_header_len parameter and drop all
packets below this value. Initially, set it to non-zero only for
Ethernet and loopback. Other protocols can follow in a patch to
net-next.

Fixes: 9ed988cd5915 ("packet: validate variable length ll headers")
Reported-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-18 16:39:27 +01:00
..
acpi Merge branch 'acpi-pci' 2015-11-07 01:30:10 +01:00
asm-generic asm-generic: make copy_from_user() zero the destination properly 2016-09-24 10:07:45 +02:00
clocksource
crypto crypto: ghash-generic - move common definitions to a new header file 2016-10-22 12:26:56 +02:00
drm drm/prime: Pass the right module owner through to dma_buf_export() 2016-10-31 04:13:57 -06:00
dt-bindings ARM: DT updates for v4.4 2015-11-10 15:06:26 -08:00
keys KEYS: Merge the type-specific data with the payload data 2015-10-21 15:18:36 +01:00
kvm KVM: arm/arm64: arch_timer: Preserve physical dist. active state on LR.active 2015-11-24 18:07:40 +01:00
linux net: introduce device min_header_len 2017-02-18 16:39:27 +01:00
math-emu
media videobuf2-core: Check user space planes array in dqbuf 2016-05-04 14:48:50 -07:00
memory
misc
net netlabel: out of bound access in cipso_v4_validate() 2017-02-18 16:39:26 +01:00
pcmcia
ras
rdma IB/cma: Fix a race condition in iboe_addr_get_sgid() 2017-01-09 08:07:51 +01:00
rxrpc
scsi scsi: Add intermediate STARGET_REMOVE state to scsi_target_state 2016-06-01 12:15:54 -07:00
soc ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
sound ALSA: rawmidi: Make snd_rawmidi_transmit() race-free 2016-02-17 12:30:58 -08:00
target target: Make EXTENDED_COPY 0xe4 failure return COPY TARGET DEVICE NOT REACHABLE 2016-10-28 03:01:36 -04:00
trace SUNRPC: Don't allocate a full sockaddr_storage for tracing 2016-08-20 18:09:26 +02:00
uapi can: raw: raw_setsockopt: limit number of can_filter that can be set 2016-12-15 08:49:22 -08:00
video drm/imx: Match imx-ipuv3-crtc components using device node in platform data 2016-06-07 18:14:37 -07:00
xen xen: Fix page <-> pfn conversion on 32 bit systems 2016-05-11 11:21:14 +02:00
Kbuild