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Hangbin Liu a3bb02598d bonding: reset bond's flags when down link is P2P device
[ Upstream commit da19a2b967cf1e2c426f50d28550d1915214a81d ]

When adding a point to point downlink to the bond, we neglected to reset
the bond's flags, which were still using flags like BROADCAST and
MULTICAST. Consequently, this would initiate ARP/DAD for P2P downlink
interfaces, such as when adding a GRE device to the bonding.

To address this issue, let's reset the bond's flags for P2P interfaces.

Before fix:
7: gre0@NONE: <POINTOPOINT,NOARP,SLAVE,UP,LOWER_UP> mtu 1500 qdisc noqueue master bond0 state UNKNOWN group default qlen 1000
    link/gre6 2006:70:10::1 peer 2006:70:10::2 permaddr 167f:18:f188::
8: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/gre6 2006:70:10::1 brd 2006:70:10::2
    inet6 fe80::200:ff:fe00:0/64 scope link
       valid_lft forever preferred_lft forever

After fix:
7: gre0@NONE: <POINTOPOINT,NOARP,SLAVE,UP,LOWER_UP> mtu 1500 qdisc noqueue master bond2 state UNKNOWN group default qlen 1000
    link/gre6 2006:70:10::1 peer 2006:70:10::2 permaddr c29e:557a:e9d9::
8: bond0: <POINTOPOINT,NOARP,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/gre6 2006:70:10::1 peer 2006:70:10::2
    inet6 fe80::1/64 scope link
       valid_lft forever preferred_lft forever

Reported-by: Liang Li <liali@redhat.com>
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=2221438
Fixes: 872254dd6b ("net/bonding: Enable bonding to enslave non ARPHRD_ETHER")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-08-11 11:53:48 +02:00
arch x86: fix backwards merge of GDS/SRSO bit 2023-08-08 19:56:37 +02:00
block block/partition: fix signedness issue for Amiga partitions 2023-07-27 08:37:29 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:11:22 +02:00
crypto KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() 2023-06-21 15:44:08 +02:00
Documentation Documentation/x86: Fix backwards on/off logic about YMM support 2023-08-08 19:56:36 +02:00
drivers bonding: reset bond's flags when down link is P2P device 2023-08-11 11:53:48 +02:00
fs ext4: fix to check return value of freeze_bdev() in ext4_shutdown() 2023-08-11 11:53:47 +02:00
include tcp: Reduce chance of collisions in inet6_hashfn(). 2023-08-11 11:53:47 +02:00
init x86/mm: Initialize text poking earlier 2023-08-08 19:56:36 +02:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:23:06 +01:00
kernel ftrace: Fix possible warning on checking all pages used in ftrace_process_locs() 2023-08-11 11:53:46 +02:00
lib debugobjects: Recheck debug_objects_enabled before reporting 2023-07-27 08:37:41 +02:00
LICENSES
mm mm: make wait_on_page_writeback() wait for multiple pending writebacks 2023-06-28 10:18:42 +02:00
net ipv6 addrconf: fix bug where deleting a mngtmpaddr can create a new temporary address 2023-08-11 11:53:47 +02:00
samples samples/bpf: Fix buffer overflow in tcp_basertt 2023-07-27 08:37:07 +02:00
scripts modpost: fix off by one in is_executable_section() 2023-07-27 08:37:18 +02:00
security keys: Fix linking a duplicate key to a keyring's assoc_array 2023-08-11 11:53:47 +02:00
sound ALSA: jack: Fix mutex call in snd_jack_report() 2023-07-27 08:37:24 +02:00
tools x86/bugs: Increase the x86 bugs vector size to two u32s 2023-08-08 19:56:37 +02:00
usr
virt KVM: Destroy target device if coalesced MMIO unregistration fails 2023-03-11 16:44:01 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Remove DECnet support from kernel 2023-06-21 15:44:10 +02:00
Makefile Linux 5.4.252 2023-08-08 19:56:37 +02:00
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.