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5146743120
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Masahiro Fujiwara 5146743120 gtp: fix an use-before-init in gtp_newlink() 
*_pdp_find() from gtp_encap_recv() would trigger a crash when a peer
sends GTP packets while creating new GTP device.

RIP: 0010:gtp1_pdp_find.isra.0+0x68/0x90 [gtp]
<SNIP>
Call Trace:
 <IRQ>
 gtp_encap_recv+0xc2/0x2e0 [gtp]
 ? gtp1_pdp_find.isra.0+0x90/0x90 [gtp]
 udp_queue_rcv_one_skb+0x1fe/0x530
 udp_queue_rcv_skb+0x40/0x1b0
 udp_unicast_rcv_skb.isra.0+0x78/0x90
 __udp4_lib_rcv+0x5af/0xc70
 udp_rcv+0x1a/0x20
 ip_protocol_deliver_rcu+0xc5/0x1b0
 ip_local_deliver_finish+0x48/0x50
 ip_local_deliver+0xe5/0xf0
 ? ip_protocol_deliver_rcu+0x1b0/0x1b0

gtp_encap_enable() should be called after gtp_hastable_new() otherwise
*_pdp_find() will access the uninitialized hash table.

Fixes: 1e3a3abd8b ("gtp: make GTP sockets in gtp_newlink optional")
Signed-off-by: Masahiro Fujiwara <fujiwara.masahiro@gmail.com>
Link: https://lore.kernel.org/r/20201027114846.3924-1-fujiwara.masahiro@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-29 09:43:21 -07:00
arch ARM: 2020-10-23 11:17:56 -07:00
block docs: bio: fix a kerneldoc markup 2020-10-15 07:49:48 +02:00
certs
crypto drivers-5.10-2020-10-12 2020-10-13 13:04:41 -07:00
Documentation Fixes for 5.10-rc1 from the networking tree: 2020-10-23 12:05:49 -07:00
drivers gtp: fix an use-before-init in gtp_newlink() 2020-10-29 09:43:21 -07:00
fs Changes in gfs2: 2020-10-23 11:47:42 -07:00
include Fixes for 5.10-rc1 from the networking tree: 2020-10-23 12:05:49 -07:00
init linux-kselftest-kunit-5.10-rc1 2020-10-18 14:45:59 -07:00
ipc
kernel Fixes for 5.10-rc1 from the networking tree: 2020-10-23 12:05:49 -07:00
lib Kbuild updates for v5.10 2020-10-22 13:13:57 -07:00
LICENSES LICENSES/deprecated: add Zlib license text 2020-09-16 14:33:49 +02:00
mm Refactored code for 5.10: 2020-10-23 11:33:41 -07:00
net net: protect tcf_block_unbind with block lock 2020-10-27 17:58:36 -07:00
samples bpf, libbpf: Guard bpf inline asm from bpf_tail_call_static 2020-10-22 01:46:52 +02:00
scripts Fixes for 5.10-rc1 from the networking tree: 2020-10-23 12:05:49 -07:00
security task_work: cleanup notification modes 2020-10-17 15:05:30 -06:00
sound dma-mapping updates for 5.10 2020-10-15 14:43:29 -07:00
tools Fixes for 5.10-rc1 from the networking tree: 2020-10-23 12:05:49 -07:00
usr
virt kvm: x86/mmu: Support dirty logging for the TDP MMU 2020-10-23 03:42:13 -04:00
.clang-format RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore .gitignore: docs: ignore sphinx_*/ directories 2020-09-10 10:44:31 -06:00
.mailmap MAINTAINERS: jarkko.sakkinen@linux.intel.com -> jarkko@kernel.org 2020-10-16 11:11:19 -07:00
COPYING
CREDITS networking changes for the 5.10 merge window 2020-10-15 18:42:13 -07:00
Kbuild
Kconfig
MAINTAINERS Fixes for 5.10-rc1 from the networking tree: 2020-10-23 12:05:49 -07:00
Makefile Kbuild updates for v5.10 2020-10-22 13:13:57 -07:00
README

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.