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kernel_optimize_test/net
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Dan Aloni c02c1df4fb sunrpc: fix xs_read_xdr_buf for partial pages receive 
[ Upstream commit ac9645c87380e39a8fa87a1b51721efcdea89dbf ]

When receiving pages data, return value 'ret' when positive includes
`buf->page_base`, so we should subtract that before it is used for
changing `offset` and comparing against `want`.

This was discovered on the very rare cases where the server returned a
chunk of bytes that when added to the already received amount of bytes
for the pages happened to match the current `recv.len`, for example
on this case:

     buf->page_base : 258356
     actually received from socket: 1740
     ret : 260096
     want : 260096

In this case neither of the two 'if ... goto out' trigger, and we
continue to tail parsing.

Worth to mention that the ensuing EMSGSIZE from the continued execution of
`xs_read_xdr_buf` may be observed by an application due to 4 superfluous
bytes being added to the pages data.

Fixes: 277e4ab7d5 ("SUNRPC: Simplify TCP receive code by switching to using iterators")
Signed-off-by: Dan Aloni <dan@kernelim.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-12-30 11:53:53 +01:00
..
6lowpan
9p net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid 2020-10-12 10:05:47 +02:00
802
8021q net: vlan: Fixed signedness in vlan_group_prealloc_vid() 2020-09-28 00:51:39 -07:00
appletalk appletalk: Fix atalk_proc_init() return path 2020-08-03 15:48:32 -07:00
atm net: atm: fix update of position index in lec_seq_next 2020-10-31 12:26:30 -07:00
ax25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-25 17:49:04 -07:00
batman-adv batman-adv: Don't always reallocate the fragmentation skb head 2020-11-27 08:02:55 +01:00
bluetooth Bluetooth: sco: Fix crash when using BT_SNDMTU/BT_RCVMTU option 2020-12-30 11:53:40 +01:00
bpf bpf: fix raw_tp test run in preempt kernel 2020-09-30 08:34:08 -07:00
bpfilter Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH" 2020-10-15 12:33:24 -07:00
bridge bridge: Fix a deadlock when enabling multicast snooping 2020-12-07 17:14:43 -08:00
caif caif: Remove duplicate macro SRVL_CTRL_PKT_SIZE 2020-09-05 15:57:05 -07:00
can can: isotp: isotp_setsockopt(): block setsockopt on bound sockets 2020-12-09 08:44:15 -08:00
ceph libceph: clear con->out_msg on Policy::stateful_server faults 2020-10-12 15:29:27 +02:00
core Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2020-12-10 14:29:30 -08:00
dcb net: DCB: Validate DCB_ATTR_DCB_BUFFER argument 2020-09-10 15:09:08 -07:00
dccp tcp: fix race condition when creating child sockets from syncookies 2020-11-23 16:32:33 -08:00
decnet treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
dns_resolver
dsa net: dsa: tag_ksz: KSZ8795 and KSZ9477 also use tail tags 2020-10-19 17:32:50 -07:00
ethernet
ethtool ethtool: fix stack overflow in ethnl_parse_bitset() 2020-12-09 15:50:38 -08:00
hsr genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
ieee802154 genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
ife
ipv4 net: ipconfig: Avoid spurious blank lines in boot log 2020-12-26 16:02:38 +01:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2020-12-09 18:55:46 -08:00
iucv net/af_iucv: set correct sk_protocol for child sockets 2020-11-21 14:43:45 -08:00
kcm net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
key Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-02 01:02:12 -07:00
l2tp genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
l3mdev net: Fix some comments 2020-08-27 07:55:59 -07:00
lapb
llc net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
mac80211 mac80211: fix a mistake check for rx_stats update 2020-12-30 11:53:50 +01:00
mac802154 Merge tag 'ieee802154-for-davem-2020-09-08' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan 2020-09-08 20:12:58 -07:00
mpls mpls: load mpls_gso after mpls_iptunnel 2020-10-20 21:16:45 -07:00
mptcp mptcp: print new line in mptcp_seq_show() if mptcp isn't in use 2020-12-07 17:45:29 -08:00
ncsi net/ncsi: Fix netlink registration 2020-11-12 17:00:13 -08:00
netfilter netfilter: nft_ct: Remove confirmation check for NFT_CT_ID 2020-12-09 10:31:58 +01:00
netlabel netlabel: fix an uninitialized warning in netlbl_unlabel_staticlist() 2020-11-14 12:07:57 -08:00
netlink netlink: export policy in extended ACK 2020-10-09 20:22:32 -07:00
netrom treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfc nfc: Ensure presence of NFC_ATTR_FIRMWARE_NAME attribute in nfc_genl_fw_download() 2020-10-20 17:06:22 -07:00
nsh
openvswitch openvswitch: fix error return code in validate_and_copy_dec_ttl() 2020-12-04 15:43:14 -08:00
packet net/packet: fix packet receive on L3 devices without visible hard header 2020-11-23 17:29:36 -08:00
phonet treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
psample genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
qrtr net: qrtr: ns: Fix the incorrect usage of rcu_read_lock() 2020-10-06 06:01:35 -07:00
rds RDMA: Add rdma_connect_locked() 2020-10-28 09:14:49 -03:00
rfkill rfkill: Fix use-after-free in rfkill_resume() 2020-11-12 09:18:06 +01:00
rose rose: Fix Null pointer dereference in rose_send_frame() 2020-11-20 10:04:58 -08:00
rxrpc rxrpc: Fix loss of final ack on shutdown 2020-10-15 13:28:00 +01:00
sched net: sched: Fix dump of MPLS_OPT_LSE_LABEL attribute in cls_flower 2020-12-09 20:39:38 -08:00
sctp sctp: change to hold/put transport for proto_unreach_timer 2020-11-14 11:57:12 -08:00
smc net/smc: fix direct access to ib_gid_addr->ndev in smc_ib_determine_gid() 2020-11-19 10:59:19 -08:00
strparser
sunrpc sunrpc: fix xs_read_xdr_buf for partial pages receive 2020-12-30 11:53:53 +01:00
switchdev net: switchdev: Fixed kerneldoc warning 2020-09-23 17:46:31 -07:00
tipc net: tipc: prevent possible null deref of link 2020-12-08 15:53:41 -08:00
tls net/tls: Protect from calling tls_dev_del for TLS RX twice 2020-11-25 17:31:06 -08:00
unix networking changes for the 5.10 merge window 2020-10-15 18:42:13 -07:00
vmw_vsock vsock/virtio: discard packets only when socket is really closed 2020-11-23 16:36:29 -08:00
wimax genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
wireless nl80211/cfg80211: fix potential infinite loop 2020-12-30 11:53:03 +01:00
x25 net/x25: prevent a couple of overflows 2020-12-02 17:26:36 -08:00
xdp xsk: Return error code if force_zc is set 2020-12-04 16:48:31 +01:00
xfrm net: xfrm: fix memory leak in xfrm_user_policy() 2020-11-10 09:14:25 +01:00
compat.c iov_iter: transparently handle compat iovecs in import_iovec 2020-10-03 00:02:13 -04:00
devres.c
Kconfig drop_monitor: Convert to using devlink tracepoint 2020-09-30 18:01:26 -07:00
Makefile
socket.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-10-05 18:40:01 -07:00
sysctl_net.c