Linux kernel source tree
Go to file
Ido Schimmel 555f45d24b bridge: mcast: Fail MDB get request on empty entry
When user space deletes a port from an MDB entry, the port is removed
synchronously. If this was the last port in the entry and the entry is
not joined by the host itself, then the entry is scheduled for deletion
via a timer.

The above means that it is possible for the MDB get netlink request to
retrieve an empty entry which is scheduled for deletion. This is
problematic as after deleting the last port in an entry, user space
cannot rely on a non-zero return code from the MDB get request as an
indication that the port was successfully removed.

Fix by returning an error when the entry's port list is empty and the
entry is not joined by the host.

Fixes: 68b380a395 ("bridge: mcast: Add MDB get support")
Reported-by: Jamie Bainbridge <jamie.bainbridge@gmail.com>
Closes: https://lore.kernel.org/netdev/c92569919307749f879b9482b0f3e125b7d9d2e3.1726480066.git.jamie.bainbridge@gmail.com/
Tested-by: Jamie Bainbridge <jamie.bainbridge@gmail.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20240929123640.558525-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-10-02 17:26:57 -07:00
arch Char/Misc and other driver changes for 6.12-rc1 2024-09-26 10:13:08 -07:00
block for-6.12/block-20240925 2024-09-25 14:56:40 -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 Including fixes from netfilter. 2024-09-26 10:27:10 -07:00
drivers vrf: revert "vrf: Remove unnecessary RCU-bh critical section" 2024-10-02 17:26:11 -07:00
fs 12 smb3 client fixes, and also an important netfs fix for cifs mtime write regression 2024-09-26 09:20:19 -07:00
include net: test for not too small csum_start in virtio_net_hdr_to_skb() 2024-10-02 17:21:59 -07:00
init Rust changes for v6.12 2024-09-25 10:25:40 -07:00
io_uring for-6.12/io_uring-20240922 2024-09-24 11:11:38 -07:00
ipc struct fd layout change (and conversion to accessor helpers) 2024-09-23 09:35:36 -07:00
kernel Probes updates for v6.12: 2024-09-26 08:55:36 -07:00
lib for-6.12/block-20240925 2024-09-25 14:56:40 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm memblock: updates for 6.12-rc1 2024-09-25 11:35:19 -07:00
net bridge: mcast: Fail MDB get request on empty entry 2024-10-02 17:26:57 -07:00
rust Rust changes for v6.12 2024-09-25 10:25:40 -07:00
samples Landlock updates for v6.12-rc1 2024-09-24 10:40:11 -07:00
scripts Char/Misc and other driver changes for 6.12-rc1 2024-09-26 10:13:08 -07:00
security bpf-next-6.12-struct-fd 2024-09-24 14:54:26 -07:00
sound firewire updates for v6.12 2024-09-23 12:55:27 -07:00
tools selftests: rds: move include.sh to TEST_FILES 2024-10-02 17:22:49 -07:00
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
.clang-format clang-format: Update with v6.11-rc1's for_each macro list 2024-08-02 13:20:31 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Kbuild updates for v6.12 2024-09-24 13:02:06 -07:00
.mailmap Summary 2024-09-24 11:08:40 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Mark powerpc spufs as orphaned 2024-08-19 21:27:56 +10:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Including fixes from netfilter. 2024-09-26 10:27:10 -07:00
Makefile Rust changes for v6.12 2024-09-25 10:25:40 -07:00
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.