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Junichi Uekawa b4a5905fd2 vhost/vsock: Use kvmalloc/kvfree for larger packets. 
[ Upstream commit 0e3f72931fc47bb81686020cc643cde5d9cd0bb8 ]

When copying a large file over sftp over vsock, data size is usually 32kB,
and kmalloc seems to fail to try to allocate 32 32kB regions.

 vhost-5837: page allocation failure: order:4, mode:0x24040c0
 Call Trace:
  [<ffffffffb6a0df64>] dump_stack+0x97/0xdb
  [<ffffffffb68d6aed>] warn_alloc_failed+0x10f/0x138
  [<ffffffffb68d868a>] ? __alloc_pages_direct_compact+0x38/0xc8
  [<ffffffffb664619f>] __alloc_pages_nodemask+0x84c/0x90d
  [<ffffffffb6646e56>] alloc_kmem_pages+0x17/0x19
  [<ffffffffb6653a26>] kmalloc_order_trace+0x2b/0xdb
  [<ffffffffb66682f3>] __kmalloc+0x177/0x1f7
  [<ffffffffb66e0d94>] ? copy_from_iter+0x8d/0x31d
  [<ffffffffc0689ab7>] vhost_vsock_handle_tx_kick+0x1fa/0x301 [vhost_vsock]
  [<ffffffffc06828d9>] vhost_worker+0xf7/0x157 [vhost]
  [<ffffffffb683ddce>] kthread+0xfd/0x105
  [<ffffffffc06827e2>] ? vhost_dev_set_owner+0x22e/0x22e [vhost]
  [<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3
  [<ffffffffb6eb332e>] ret_from_fork+0x4e/0x80
  [<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3

Work around by doing kvmalloc instead.

Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko")
Signed-off-by: Junichi Uekawa <uekawa@chromium.org>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/r/20220928064538.667678-1-uekawa@chromium.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-26 13:25:22 +02:00
..
6lowpan
6lowpan: iphc: Fix an off-by-one check of array index
2021-09-15 09:50:34 +02:00
9p
net/9p: Initialize the iounit field during fid creation
2022-08-21 15:16:26 +02:00
802
net/802/garp: fix memleak in garp_request_join()
2021-07-31 08:16:11 +02:00
8021q
net: make free_netdev() more lenient with unregistering devices
2022-07-29 17:19:07 +02:00
appletalk
appletalk: Fix skb allocation size in loopback case
2021-04-07 15:00:08 +02:00
atm
net: atm: fix update of position index in lec_seq_next
2020-10-31 12:26:30 -07:00
ax25
net: ax25: Fix deadlock caused by skb_recv_datagram in ax25_recvmsg
2022-06-22 14:13:17 +02:00
batman-adv
batman-adv: Don't skb_split skbuffs with frag_list
2022-05-18 10:23:42 +02:00
bluetooth
Bluetooth: hci_core: Fix not handling link timeouts propertly
2022-10-26 13:25:22 +02:00
bpf
bpf: Don't redirect packets with invalid pkt_len
2022-09-05 10:28:56 +02:00
bpfilter
bpfilter: Specify the log level for the kmsg message
2021-07-14 16:56:29 +02:00
bridge
netfilter: ebtables: fix memory leak when blob is malformed
2022-09-28 11:10:36 +02:00
caif
net-caif: avoid user-triggerable WARN_ON(1)
2021-09-22 12:27:56 +02:00
can
can: j1939: j1939_session_destroy(): fix memory leak of skbs
2022-08-25 11:38:23 +02:00
ceph
libceph: fix potential use-after-free on linger ping and resends
2022-05-25 09:17:56 +02:00
core
net: socket: remove register_gifconf
2022-09-28 11:10:35 +02:00
dcb
net: dcb: disable softirqs in dcbnl_flush_dev()
2022-03-08 19:09:37 +01:00
dccp
dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock
2022-08-21 15:15:52 +02:00
decnet
net: Fix data-races around sysctl_[rw]mem(_offset)?.
2022-08-31 17:15:19 +02:00
dns_resolver
…
dsa
net: dsa: Add missing of_node_put() in dsa_port_link_register_of
2022-05-09 09:05:02 +02:00
ethernet
…
ethtool
ethtool: do not perform operations on net devices being unregistered
2021-12-17 10:14:41 +01:00
hsr
net: hsr: fix mac_len checks
2021-06-03 09:00:50 +02:00
ieee802154
net/ieee802154: fix uninit value bug in dgram_sendmsg
2022-10-15 07:55:52 +02:00
ife
…
ipv4
netfilter: nft_fib: Fix for rpath check with VRF devices
2022-10-26 13:25:22 +02:00
ipv6
netfilter: nft_fib: Fix for rpath check with VRF devices
2022-10-26 13:25:22 +02:00
iucv
net/af_iucv: remove WARN_ONCE on malformed RX packets
2021-03-07 12:34:05 +01:00
kcm
kcm: fix strp_init() order and cleanup
2022-09-08 11:11:37 +02:00
key
af_key: Do not call xfrm_probe_algs in parallel
2022-08-31 17:15:15 +02:00
l2tp
ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
2022-06-22 14:13:15 +02:00
l3mdev
l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu
2022-04-27 13:53:50 +02:00
lapb
net: lapb: Copy the skb before sending a packet
2021-02-10 09:29:14 +01:00
llc
llc: only change llc->dev when bind() succeeds
2022-03-28 09:57:10 +02:00
mac80211
wifi: mac80211: allow bw change during channel switch in mesh
2022-10-26 13:25:19 +02:00
mac802154
net: mac802154: Fix a condition in the receive path
2022-09-08 11:11:40 +02:00
mpls
net: Use u64_stats_fetch_begin_irq() for stats fetch.
2022-09-08 11:11:40 +02:00
mptcp
net: Fix data-races around sysctl_[rw]mem(_offset)?.
2022-08-31 17:15:19 +02:00
ncsi
net/ncsi: check for error return from call to nla_put_u32
2022-01-05 12:40:32 +01:00
netfilter
netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain()
2022-09-28 11:10:35 +02:00
netlabel
netlabel: fix out-of-bounds memory accesses
2022-04-13 21:01:00 +02:00
netlink
net: genl: fix error path memory leak in policy dumping
2022-08-25 11:38:07 +02:00
netrom
netrom: fix api breakage in nr_setsockopt()
2022-01-27 10:54:03 +01:00
nfc
NFC: NULL out the dev->rfkill to prevent UAF
2022-06-09 10:21:01 +02:00
nsh
…
openvswitch
net: openvswitch: fix parsing of nw_proto for IPv6 fragments
2022-06-29 08:59:45 +02:00
packet
net/af_packet: check len when min_header_len equals to 0
2022-09-05 10:28:59 +02:00
phonet
phonet: refcount leak in pep_sock_accep
2022-01-11 15:25:01 +01:00
psample
net: psample: Fix netlink skb length with tunnel info
2021-03-07 12:34:07 +01:00
qrtr
qrtr: Convert qrtr_ports from IDR to XArray
2022-08-25 11:38:23 +02:00
rds
rds: add missing barrier to release_refill
2022-08-25 11:37:49 +02:00
rfkill
rfkill: Fix use-after-free in rfkill_resume()
2020-11-12 09:18:06 +01:00
rose
rose: check NULL rose_loopback_neigh->loopback
2022-08-31 17:15:16 +02:00
rxrpc
rxrpc: Fix calc of resend age
2022-09-23 14:16:59 +02:00
sched
net: sched: act_ct: fix possible refcount leak in tcf_ct_init()
2022-10-05 10:38:42 +02:00
sctp
sctp: leave the err path free in sctp_stream_init to sctp_stream_free
2022-08-03 12:00:49 +02:00
smc
net/smc: Stop the CLC flow if no link to map buffers on
2022-09-28 11:10:36 +02:00
strparser
bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding
2021-11-18 14:04:27 +01:00
sunrpc
SUNRPC: RPC level errors should set task->tk_rpc_status
2022-08-31 17:15:15 +02:00
switchdev
net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP
2021-02-07 15:37:12 +01:00
tipc
tipc: fix shift wrapping bug in map_get()
2022-09-15 11:32:05 +02:00
tls
net/tls: Remove the context from the list in tls_device_down
2022-08-03 12:00:46 +02:00
unix
af_unix: Fix a data-race in unix_dgram_peer_wake_me().
2022-06-14 18:32:40 +02:00
vmw_vsock
vhost/vsock: Use kvmalloc/kvfree for larger packets.
2022-10-26 13:25:22 +02:00
wimax
genetlink: move to smaller ops wherever possible
2020-10-02 19:11:11 -07:00
wireless
wifi: cfg80211: update hidden BSSes to avoid WARN_ON
2022-10-15 07:55:56 +02:00
x25
net/x25: Fix null-ptr-deref caused by x25_disconnect
2022-04-08 14:40:30 +02:00
xdp
xsk: Inherit need_wakeup flag for shared sockets
2022-10-15 07:55:51 +02:00
xfrm
net: Fix data-races around netdev_max_backlog.
2022-08-31 17:15:19 +02:00
compat.c
net: Return the correct errno code
2021-06-18 10:00:06 +02:00
devres.c
…
Kconfig
drop_monitor: Convert to using devlink tracepoint
2020-09-30 18:01:26 -07:00
Makefile
…
socket.c
net: Fix a data-race around sysctl_somaxconn.
2022-08-31 17:15:21 +02:00
sysctl_net.c
…