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Jens Axboe c314094cb4 io_uring/net: harden multishot termination case for recv
If the recv returns zero, or an error, then it doesn't matter if more
data has already been received for this buffer. A condition like that
should terminate the multishot receive. Rather than pass in the
collected return value, pass in whether to terminate or keep the recv
going separately.

Note that this isn't a bug right now, as the only way to get there is
via setting MSG_WAITALL with multishot receive. And if an application
does that, then -EINVAL is returned anyway. But it seems like an easy
bug to introduce, so let's make it a bit more explicit.

Link: https://github.com/axboe/liburing/issues/1246
Cc: stable@vger.kernel.org
Fixes: b3fdea6ecb ("io_uring: multishot recv")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-09-30 08:26:59 -06:00
arch RISC-V Patches for the 6.12 Merge Window, Part 1 2024-09-24 10:59:17 -07:00
block vfs-6.12.blocksize 2024-09-20 17:53:17 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto KEYS: prevent NULL pointer dereference in find_asymmetric_key() 2024-09-20 19:49:49 +03:00
Documentation sched_ext: Fixes for v6.12-rc1 2024-09-24 11:33:50 -07:00
drivers RISC-V Patches for the 6.12 Merge Window, Part 1 2024-09-24 10:59:17 -07:00
fs Summary 2024-09-24 11:08:40 -07:00
include for-6.12/io_uring-20240922 2024-09-24 11:11:38 -07:00
init sched_ext: Initial pull request for v6.12 2024-09-21 09:44:57 -07:00
io_uring io_uring/net: harden multishot termination case for recv 2024-09-30 08:26:59 -06:00
ipc struct fd layout change (and conversion to accessor helpers) 2024-09-23 09:35:36 -07:00
kernel sched_ext: Fixes for v6.12-rc1 2024-09-24 11:33:50 -07:00
lib The core clk framework is left largely untouched this time around except for 2024-09-23 15:01:48 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm lsm/stable-6.12 PR 20240923 2024-09-24 10:18:15 -07:00
net NFSD 6.12 Release Notes 2024-09-23 12:01:45 -07:00
rust Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-09-05 20:37:20 -07:00
samples Landlock updates for v6.12-rc1 2024-09-24 10:40:11 -07:00
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usr initramfs: shorten cmd_initfs in usr/Makefile 2024-07-16 01:07:52 +09:00
virt struct fd layout change (and conversion to accessor helpers) 2024-09-23 09:35:36 -07:00
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.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
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.mailmap Summary 2024-09-24 11:08:40 -07:00
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COPYING
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Makefile Linux 6.11 2024-09-15 16:57:56 +02:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

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.