Chirantan Ekbote
d28c756cae
9p/net: Fix zero-copy path in the 9p virtio transport ...
The zero-copy optimization when reading or writing large chunks of data
is quite useful. However, the 9p messages created through the zero-copy
write path have an incorrect message size: it should be the size of the
header + size of the data being written but instead it's just the size
of the header.
This only works if the server ignores the size field of the message and
otherwise breaks the framing of the protocol. Fix this by re-writing the
message size field with the correct value.
Tested by running `dd if=/dev/zero of=out bs=4k count=1` inside a
virtio-9p mount.
Link: http://lkml.kernel.org/r/20180717003529.114368-1-chirantan@chromium.org
Signed-off-by: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Greg Kurz <groug@kaod.org>
Cc: Dylan Reid <dgreid@chromium.org>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
2018-08-13 09:34:59 +09:00
9p/net: Fix zero-copy path in the 9p virtio transport
2018-08-13 09:34:59 +09:00
net: fix use-after-free in GRO with ESP
2018-07-02 20:34:04 +09:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
batman-adv: Fix multicast TT issues with bogus ROAM flags
2018-06-23 10:29:33 +02:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
bpf: fix panic due to oob in bpf_prog_test_run_skb
2018-07-11 16:10:57 -07:00
bpfilter: include bpfilter_umh in assembly instead of using objcopy
2018-06-28 21:39:16 +09:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-06-16 07:39:34 +09:00
net: caif: Add a missing rcu_read_unlock() in caif_flow_cb
2018-07-21 16:14:39 -07:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
The main piece is a set of libceph changes that revamps how OSD
2018-06-15 07:24:58 +09:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
2018-07-28 21:02:21 -07:00
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
dccp: fix undefined behavior with 'cwnd' shift in ccid2_cwnd_restart()
2018-08-07 15:34:44 -07:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
KEYS: DNS: fix parsing multiple options
2018-07-16 11:22:14 -07:00
dsa: slave: eee: Allow ports to use phylink
2018-08-08 19:19:03 -07:00
ieee802154: 6lowpan: set IFLA_LINK
2018-07-05 11:13:17 +02:00
ipv4: frags: handle possible skb truesize change
2018-07-31 14:41:29 -07:00
ip6_tunnel: use the right value for ipv4 min mtu check in ip6_tnl_xmit
2018-08-05 17:35:02 -07:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
l2tp: fix missing refcount drop in pppol2tp_tunnel_ioctl()
2018-08-03 12:39:01 -07:00
llc: use refcount_inc_not_zero() for llc_sap_find()
2018-08-07 15:54:00 -07:00
nl80211/mac80211: allow non-linear skb in rx_control_port
2018-07-06 14:34:42 +02:00
net/ncsi: Use netdev_dbg for debug messages
2018-06-20 07:26:58 +09:00
netfilter: nf_tables: move dumper state allocation into ->start
2018-07-24 00:36:33 +02:00
netlink: Don't shift on 64 for ngroups
2018-08-04 17:52:51 -07:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
net/nfc: Avoid stalls when nfc_alloc_send_skb() returned NULL.
2018-07-18 10:51:45 -07:00
nsh: set mac len based on inner packet
2018-07-12 16:55:29 -07:00
openvswitch: meter: Fix setting meter id for new entries
2018-07-29 13:20:54 -07:00
packet: refine ring v3 block size test to hold one frame
2018-08-06 13:48:33 -07:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
net: qrtr: Reset the node and port ID of broadcast messages
2018-07-05 20:20:03 +09:00
RDS: RDMA: Fix the NULL-ptr deref in rds_ib_get_mr
2018-07-26 14:03:07 -07:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
rxrpc: Fix the keepalive generator [ver #2 ]
2018-08-08 19:10:26 -07:00
net: sched: Using NULL instead of plain integer
2018-07-18 13:44:07 -07:00
sctp: fix the issue that pathmtu may be set lower than MINSEGMENT
2018-07-04 21:36:34 +09:00
net/smc: move sock lock in smc_ioctl()
2018-08-08 19:14:22 -07:00
strparser: Remove early eaten to fix full tcp receive buffer stall
2018-06-28 21:37:26 +09:00
NFS client bugfixes for Linux 4.18
2018-06-22 06:21:34 +09:00
tipc: fix an interrupt unsafe locking scenario
2018-08-07 13:15:35 -07:00
tls: check RCV_SHUTDOWN in tls_wait_data
2018-07-20 14:38:14 -07:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
vsock: split dwork to avoid reinitializations
2018-08-07 12:39:13 -07:00
cfg80211: never ignore user regulatory hint
2018-07-24 09:11:31 +02:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
net: xsk: don't return frames via the allocator on error
2018-07-31 02:03:19 +02:00
xfrm: free skb if nlsk pointer is NULL
2018-06-25 16:43:36 +02:00
net: Introduce generic failover module
2018-05-28 22:59:54 -04:00
bpfilter: check compiler capability in Kconfig
2018-06-28 13:36:39 +09:00
net: socket: Fix potential spectre v1 gadget in sock_is_registered
2018-07-28 22:43:30 -07:00
d28c756cae