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Paolo Abeni ef473bf1dd mptcp: ensure snd_una is properly initialized on connect 
commit 8031b58c3a upstream.

This is strictly related to commit fb7a0d3348 ("mptcp: ensure snd_nxt
is properly initialized on connect"). It turns out that syzkaller can
trigger the retransmit after fallback and before processing any other
incoming packet - so that snd_una is still left uninitialized.

Address the issue explicitly initializing snd_una together with snd_nxt
and write_seq.

Suggested-by: Mat Martineau <martineau@kernel.org>
Fixes: 8fd738049a ("mptcp: fallback in case of simultaneous connect")
Cc: stable@vger.kernel.org
Reported-by: Christoph Paasch <cpaasch@apple.com>
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/485
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240607-upstream-net-20240607-misc-fixes-v1-1-1ab9ddfa3d00@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-21 14:40:29 +02:00
arch x86/mm/numa: Use NUMA_NO_NODE when calling memblock_set_node() 2024-06-21 14:40:29 +02:00
block block: fix request.queuelist usage in flush 2024-06-21 14:40:24 +02:00
certs
crypto
Documentation
drivers drm/exynos: hdmi: report safe 640x480 mode as a fallback when no EDID found 2024-06-21 14:40:29 +02:00
fs ksmbd: fix missing use of get_write in in smb2_set_ea() 2024-06-21 14:40:26 +02:00
include net: pse-pd: Use EOPNOTSUPP error code instead of ENOTSUPP 2024-06-21 14:40:24 +02:00
init
io_uring io_uring/io-wq: avoid garbage value of 'match' in io_wq_enqueue() 2024-06-21 14:40:19 +02:00
ipc
kernel tick/nohz_full: Don't abuse smp_call_function_single() in tick_setup_device() 2024-06-21 14:40:26 +02:00
lib
LICENSES
mm memblock: make memblock_set_node() also warn about use of MAX_NUMNODES 2024-06-21 14:40:29 +02:00
net mptcp: ensure snd_una is properly initialized on connect 2024-06-21 14:40:29 +02:00
rust
samples
scripts modpost: do not warn about missing MODULE_DESCRIPTION() for vmlinux.o 2024-06-21 14:40:20 +02:00
security landlock: Fix d_parent walk 2024-06-21 14:40:12 +02:00
sound
tools selftests/futex: don't pass a const char* to asprintf(3) 2024-06-21 14:40:17 +02:00
usr
virt
.clang-format
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-21 14:40:11 +02:00
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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 reStructuredText 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.