android/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
e95ebe1ed6
android_kernel_xiaomi_sm8450/net
History
Arjun Roy e95ebe1ed6 tcp: Fix sign comparison bug in getsockopt(TCP_ZEROCOPY_RECEIVE) 
commit 2107d45f17bedd7dbf4178462da0ac223835a2a7 upstream.

getsockopt(TCP_ZEROCOPY_RECEIVE) has a bug where we read a
user-provided "len" field of type signed int, and then compare the
value to the result of an "offsetofend" operation, which is unsigned.

Negative values provided by the user will be promoted to large
positive numbers; thus checking that len < offsetofend() will return
false when the intention was that it return true.

Note that while len is originally checked for negative values earlier
on in do_tcp_getsockopt(), subsequent calls to get_user() re-read the
value from userspace which may have changed in the meantime.

Therefore, re-add the check for negative values after the call to
get_user in the handler code for TCP_ZEROCOPY_RECEIVE.

Fixes: c8856c0514 ("tcp-zerocopy: Return inq along with tcp receive zerocopy.")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Arjun Roy <arjunroy@google.com>
Link: https://lore.kernel.org/r/20210225232628.4033281-1-arjunroy.kdev@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-17 17:06:11 +01:00
..
6lowpan treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
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: avoid leaks on register_vlan_dev() failures 2021-01-17 14:16:55 +01:00
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: Fix null pointer dereference in amp_read_loc_assoc_final_data 2021-03-07 12:34:10 +01:00
bpf bpf: Reject too big ctx_size_in for raw_tp test run 2021-01-27 11:55:07 +01:00
bpfilter Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH" 2020-10-15 12:33:24 -07:00
bridge net: bridge: use switchdev for port flags set through sysfs too 2021-03-07 12:34:07 +01:00
caif caif: Remove duplicate macro SRVL_CTRL_PKT_SIZE 2020-09-05 15:57:05 -07:00
can can: isotp: isotp_getname(): fix kernel information leak 2021-01-17 14:17:05 +01:00
ceph libceph: clear con->out_msg on Policy::stateful_server faults 2020-10-12 15:29:27 +02:00
core pktgen: fix misuse of BUG_ON() in pktgen_thread_worker() 2021-03-07 12:34:09 +01:00
dcb net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands 2021-01-23 16:04:01 +01:00
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_rtl4_a: Support also egress tags 2021-03-07 12:34:07 +01:00
ethernet net: move devres helpers into a separate source file 2020-05-23 16:56:17 -07:00
ethtool ethtool: fix string set id check 2021-01-06 14:56:48 +01:00
hsr net: hsr: add support for EntryForgetTime 2021-03-07 12:34:07 +01:00
ieee802154 genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
ife
ipv4 tcp: Fix sign comparison bug in getsockopt(TCP_ZEROCOPY_RECEIVE) 2021-03-17 17:06:11 +01:00
ipv6 net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending 2021-03-04 11:38:46 +01:00
iucv net/af_iucv: remove WARN_ONCE on malformed RX packets 2021-03-07 12:34:05 +01:00
kcm net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
key af_key: relax availability checks for skb size calculation 2021-02-13 13:55:02 +01:00
l2tp net: l2tp: reduce log level of messages in receive path, add counter instead 2021-03-17 17:06:11 +01:00
l3mdev net: Fix some comments 2020-08-27 07:55:59 -07:00
lapb net: lapb: Copy the skb before sending a packet 2021-02-10 09:29:14 +01:00
llc net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
mac80211 mac80211: fix potential overflow when multiplying to u32 integers 2021-03-04 11:37:32 +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 net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0 2021-03-17 17:06:11 +01:00
mptcp mptcp: do not wakeup listener for MPJ subflows 2021-03-07 12:34:06 +01:00
ncsi net/ncsi: Use real net-device for response handler 2021-01-12 20:18:10 +01:00
netfilter netfilter: conntrack: skip identical origin tuple in same zone only 2021-02-17 11:02:26 +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 tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer 2021-03-04 11:37:36 +01:00
nsh treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
openvswitch net: openvswitch: fix TTL decrement exception action execution 2021-02-23 15:53:23 +01:00
packet net: fix proc_fs init handling in af_packet and tls 2021-02-23 15:53:23 +01:00
phonet treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
psample net: psample: Fix netlink skb length with tunnel info 2021-03-07 12:34:07 +01:00
qrtr net: qrtr: Fix memory leak in qrtr_tun_open 2021-03-04 11:38:47 +01:00
rds RDMA: Lift ibdev_to_node from rds to common code 2021-02-26 10:12:59 +01:00
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 clearance of Tx/Rx ring when releasing a call 2021-02-17 11:02:28 +01:00
sched net/sched: cls_flower: Reject invalid ct_state flags rules 2021-03-07 12:34:07 +01:00
sctp net: fix iteration for sctp transport seq_files 2021-02-17 11:02:29 +01:00
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 svcrdma: Hold private mutex while invoking rdma_accept() 2021-03-04 11:38:08 +01:00
switchdev net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP 2021-02-07 15:37:12 +01:00
tipc tipc: fix NULL deref in tipc_link_xmit() 2021-01-23 16:04:00 +01:00
tls net: fix proc_fs init handling in af_packet and tls 2021-02-23 15:53:23 +01:00
unix networking changes for the 5.10 merge window 2020-10-15 18:42:13 -07:00
vmw_vsock vsock: fix locking in vsock_shutdown() 2021-02-17 11:02:30 +01:00
wimax genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
wireless wext: fix NULL-ptr-dereference with cfg80211's lack of commit() 2021-02-03 23:28:38 +01:00
x25 net/x25: prevent a couple of overflows 2020-12-02 17:26:36 -08:00
xdp xsk: Clear pool even for inactive queues 2021-01-27 11:55:10 +01:00
xfrm xfrm: Fix wraparound in xfrm_policy_addr_delta() 2021-02-03 23:28:45 +01:00
compat.c iov_iter: transparently handle compat iovecs in import_iovec 2020-10-03 00:02:13 -04:00
devres.c net: devres: rename the release callback of devm_register_netdev() 2020-06-30 15:57:34 -07:00
Kconfig drop_monitor: Convert to using devlink tracepoint 2020-09-30 18:01:26 -07:00
Makefile net: move devres helpers into a separate source file 2020-05-23 16:56:17 -07:00
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