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Andrii Nakryiko 04efe5911f libbpf: fix SIGSEGV when BTF loading fails, but .BTF.ext exists
In case when BTF loading fails despite sanitization, but BPF object has
.BTF.ext loaded as well, we free and null obj->btf, but not
obj->btf_ext. This leads to an attempt to relocate .BTF.ext later on
during bpf_object__load(), which assumes obj->btf is present. This leads
to SIGSEGV on null pointer access. Fix bug by freeing and nulling
obj->btf_ext as well.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-07-19 12:37:18 -07:00
arch powerpc updates for 5.3 2019-07-13 16:08:36 -07:00
block for-5.3/block-20190708 2019-07-09 10:45:06 -07:00
certs Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs" 2019-07-10 18:43:43 -07:00
crypto USB / PHY patches for 5.3-rc1 2019-07-11 15:40:06 -07:00
Documentation bonding: add documentation for peer_notif_delay 2019-07-13 19:29:21 -07:00
drivers ag71xx: fix return value check in ag71xx_probe() 2019-07-18 20:33:48 -07:00
fs for-5.3/io_uring-20190711 2019-07-13 10:36:53 -07:00
include tcp: fix tcp_set_congestion_control() use from bpf hook 2019-07-18 20:33:48 -07:00
init Kbuild updates for v5.3 2019-07-12 16:03:16 -07:00
ipc
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2019-07-18 14:04:45 -07:00
lib for-5.3/io_uring-20190711 2019-07-13 10:36:53 -07:00
LICENSES
mm Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
net tcp: fix tcp_set_congestion_control() use from bpf hook 2019-07-18 20:33:48 -07:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2019-07-18 14:04:45 -07:00
scripts powerpc updates for 5.3 2019-07-13 16:08:36 -07:00
security Merge branch 'akpm' (patches from Andrew) 2019-07-12 11:40:28 -07:00
sound Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
tools libbpf: fix SIGSEGV when BTF loading fails, but .BTF.ext exists 2019-07-19 12:37:18 -07:00
usr kbuild: compile-test exported headers to ensure they are self-contained 2019-07-08 23:13:57 +09:00
virt ARM: 2019-07-12 15:35:14 -07:00
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.gitignore kbuild: do not create wrappers for header-test-y 2019-07-09 10:10:27 +09:00
.mailmap MAINTAINERS: Update my email address 2019-06-18 14:37:27 +01:00
COPYING
CREDITS Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-06-25 01:32:59 +02:00
Kbuild
Kconfig docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2019-07-18 14:04:45 -07:00
Makefile Kbuild updates for v5.3 2019-07-12 16:03:16 -07:00
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.