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Filename Latest commit message Latest commit date
Doug Brown f228549115 appletalk: Fix skb allocation size in loopback case
[ Upstream commit 39935dccb21c60f9bbf1bb72d22ab6fd14ae7705 ]

If a DDP broadcast packet is sent out to a non-gateway target, it is
also looped back. There is a potential for the loopback device to have a
longer hardware header length than the original target route's device,
which can result in the skb not being created with enough room for the
loopback device's hardware header. This patch fixes the issue by
determining that a loopback will be necessary prior to allocating the
skb, and if so, ensuring the skb has enough room.

This was discovered while testing a new driver that creates a LocalTalk
network interface (LTALK_HLEN = 1). It caused an skb_under_panic.

Signed-off-by: Doug Brown <doug@schmorgal.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-04-07 14:47:41 +02:00
arch powerpc: Force inlining of cpu_has_feature() to avoid build failure 2021-04-07 14:47:39 +02:00
block block: recalculate segment count for multi-segment discards correctly 2021-03-30 14:35:28 +02:00
certs
crypto crypto: x86 - Regularize glue function prototypes 2021-03-20 10:39:47 +01:00
Documentation KVM: arm64: Reject VM creation when the default IPA size is unsupported 2021-03-17 17:03:57 +01:00
drivers net: ethernet: aquantia: Handle error cleanup of start on open 2021-04-07 14:47:41 +02:00
fs ext4: do not iput inode under running transaction in ext4_rename() 2021-04-07 14:47:40 +02:00
include net: introduce CAN specific pointer in the struct net_device 2021-04-07 14:47:41 +02:00
init
ipc
kernel locking/ww_mutex: Simplify use_ww_ctx & ww_ctx handling 2021-04-07 14:47:40 +02:00
lib PCI: Fix pci_register_io_range() memory leak 2021-03-17 17:03:44 +01:00
LICENSES
mm hugetlbfs: hugetlb_fault_mutex_hash() cleanup 2021-03-30 14:35:19 +02:00
net appletalk: Fix skb allocation size in loopback case 2021-04-07 14:47:41 +02:00
samples
scripts
security integrity: double check iint_cache was initialized 2021-03-30 14:35:24 +02:00
sound ASoC: rt5659: Update MCLK rate in set_sysclk() 2021-04-07 14:47:40 +02:00
tools flow_dissector: fix TTL and TOS dissection on IPv4 fragments 2021-04-07 14:47:40 +02:00
usr
virt KVM: arm64: Ensure I-cache isolation between vcpus of a same VM 2021-03-17 17:03:57 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.109 2021-03-30 14:35:30 +02:00
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.