Eric Dumazet e41cbf98df macvlan: enforce a consistent minimal mtu ...

commit b64085b000 upstream.

macvlan should enforce a minimal mtu of 68, even at link creation.

This patch avoids the current behavior (which could lead to crashes
in ipv6 stack if the link is brought up)

$ ip link add macvlan1 link eno1 mtu 8 type macvlan  # This should fail !
$ ip link sh dev macvlan1
5: macvlan1@eno1: <BROADCAST,MULTICAST> mtu 8 qdisc noop
    state DOWN mode DEFAULT group default qlen 1000
    link/ether 02:47:6c:24:74:82 brd ff:ff:ff:ff:ff:ff
$ ip link set macvlan1 mtu 67
Error: mtu less than device minimum.
$ ip link set macvlan1 mtu 68
$ ip link set macvlan1 mtu 8
Error: mtu less than device minimum.

Fixes: 91572088e3 ("net: use core MTU range checking in core net infra")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-11-26 09:24:50 +01:00

..

appletalk

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arcnet

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bonding

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caif

caif_virtio: fix race between virtio_device_ready() and ndo_open()

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can

can: rcar_canfd: rcar_canfd_handle_global_receive(): fix IRQ storm on global FIFO receive

2022-11-03 23:59:20 +09:00

dsa

net: dsa: Fix possible memory leaks in dsa_loop_init()

2022-11-10 18:15:27 +01:00

ethernet

net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()

2022-11-26 09:24:41 +01:00

fddi

…

fjes

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hamradio

hamradio: fix issue of dev reference count leakage in bpq_device_event()

2022-11-16 09:58:18 +01:00

hippi

drivers: net: hippi: Fix deadlock in rr_close()

2022-05-09 09:14:40 +02:00

hyperv

hv_netvsc: Fix race between VF offering and VF association message from host

2022-10-26 12:34:18 +02:00

ieee802154

ieee802154: cc2520: add rc code in cc2520_tx()

2022-09-20 12:39:44 +02:00

ipa

net: ipa: properly limit modem routing table use

2022-09-28 11:11:50 +02:00

ipvlan

ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header

2022-09-28 11:11:47 +02:00

mctp

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mdio

of: mdio: Add of_node_put() when breaking out of for_each_xx

2022-09-28 11:11:50 +02:00

netdevsim

netdevsim: remove dir in nsim_dev_debugfs_init() when creating ports dir failed

2022-11-03 23:59:19 +09:00

pcs

net: pcs: xpcs: propagate xpcs_read error to xpcs_get_state_c37_sgmii

2022-08-03 12:03:48 +02:00

phy

net: phy: marvell: add sleep time after enabling the loopback bit

2022-11-26 09:24:47 +01:00

plip

plip: avoid rcu debug splat

2022-08-25 11:40:11 +02:00

ppp

net: fix dev_fill_forward_path with pppoe + bridge

2022-05-25 09:57:31 +02:00

slip

drivers: net: slip: fix NPD bug in sl_tx_timeout()

2022-04-20 09:34:17 +02:00

team

net: team: Unsync device addresses on ndo_stop

2022-09-28 11:11:48 +02:00

usb

r8152: add PID for the Lenovo OneLink+ Dock

2022-10-29 10:12:53 +02:00

vmxnet3

net: vmxnet3: fix possible NULL pointer dereference in vmxnet3_rq_cleanup()

2022-05-25 09:57:31 +02:00

wan

net: lapbether: fix issue of invalid opcode in lapbeth_open()

2022-11-16 09:58:19 +01:00

wireguard

wireguard: netlink: avoid variable-sized memcpy on sockaddr

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wireless

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wwan

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2022-11-16 09:58:21 +01:00

xen-netback

xen-netback: only remove 'hotplug-status' when the vif is actually destroyed

2022-09-15 11:30:05 +02:00

bareudp.c

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dummy.c

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eql.c

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geneve.c

geneve: fix TOS inheriting for ipv4

2022-08-25 11:40:15 +02:00

gtp.c

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ifb.c

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Kconfig

lib/crypto: blake2s: include as built-in

2022-05-30 09:28:59 +02:00

LICENSE.SRC

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loopback.c

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macsec.c

macsec: clear encryption keys from the stack after setting up offload

2022-11-16 09:58:16 +01:00

macvlan.c

macvlan: enforce a consistent minimal mtu

2022-11-26 09:24:50 +01:00

macvtap.c

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Makefile

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mdio.c

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mhi_net.c

net: mhi: Fix memory leak in mhi_net_dellink()

2022-11-26 09:24:40 +01:00

mii.c

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net_failover.c

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netconsole.c

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nlmon.c

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ntb_netdev.c

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rionet.c

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sb1000.c

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Space.c

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sungem_phy.c

net: sungem_phy: Add of_node_put() for reference returned by of_get_parent()

2022-08-03 12:03:48 +02:00

tap.c

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thunderbolt.c

net: thunderbolt: Fix error handling in tbnet_init()

2022-11-26 09:24:41 +01:00

tun.c

net: tun: call napi_schedule_prep() to ensure we own a napi

2022-11-16 09:58:30 +01:00

veth.c

veth: Ensure eth header is in skb's linear part

2022-04-20 09:34:10 +02:00

virtio_net.c

virtio_net: fix memory leak inside XPD_TX with mergeable

2022-08-25 11:40:06 +02:00

vrf.c

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vsockmon.c

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vxlan.c

vxlan: fix error return code in vxlan_fdb_append

2022-04-27 14:38:55 +02:00

xen-netfront.c

xen-netfront: restore __skb_queue_tail() positioning in xennet_get_responses()

2022-07-07 17:53:32 +02:00