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Du Cheng d4b0dc31df net: sched: tapr: prevent cycle_time == 0 in parse_taprio_schedule 
[ Upstream commit ed8157f1eb ]

There is a reproducible sequence from the userland that will trigger a WARN_ON()
condition in taprio_get_start_time, which causes kernel to panic if configured
as "panic_on_warn". Catch this condition in parse_taprio_schedule to
prevent this condition.

Reported as bug on syzkaller:
https://syzkaller.appspot.com/bug?extid=d50710fd0873a9c6b40c

Reported-by: syzbot+d50710fd0873a9c6b40c@syzkaller.appspotmail.com
Signed-off-by: Du Cheng <ducheng2@gmail.com>
Acked-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-19 10:12:57 +02:00
..
6lowpan
…
9p
net: 9p: advance iov on empty read
2021-04-07 15:00:08 +02:00
802
…
8021q
…
appletalk
appletalk: Fix skb allocation size in loopback case
2021-04-07 15:00:08 +02:00
atm
…
ax25
…
batman-adv
batman-adv: initialize "struct batadv_tvlv_tt_vlan_data"->reserved field
2021-04-14 08:41:59 +02:00
bluetooth
Bluetooth: check for zapped sk before connecting
2021-05-19 10:12:53 +02:00
bpf
…
bpfilter
…
bridge
net: bridge: when suppression is enabled exclude RARP packets
2021-05-19 10:12:53 +02:00
caif
…
can
can: isotp: fix msg_namelen values depending on CAN_REQUIRED_SIZE
2021-04-14 08:42:07 +02:00
ceph
…
core
flow_dissector: Fix out-of-bounds warning in __skb_flow_bpf_to_target()
2021-05-19 10:12:57 +02:00
dcb
…
dccp
ipv6: weaken the v4mapped source check
2021-03-30 14:32:01 +02:00
decnet
…
dns_resolver
…
dsa
net: dsa: Fix type was not set for devlink port
2021-04-14 08:42:07 +02:00
ethernet
…
ethtool
ethtool: ioctl: Fix out-of-bounds warning in store_link_ksettings_for_user()
2021-05-19 10:12:57 +02:00
hsr
net: hsr: Reset MAC header for Tx path
2021-04-14 08:42:02 +02:00
ieee802154
net: ieee802154: forbid monitor for add llsec seclevel
2021-04-21 13:00:53 +02:00
ife
…
ipv4
net: Only allow init netns to set default tcp cong to a restricted algo
2021-05-14 09:50:46 +02:00
ipv6
ip6_vti: proper dev_{hold|put} in ndo_[un]init methods
2021-05-19 10:12:54 +02:00
iucv
net/af_iucv: remove WARN_ONCE on malformed RX packets
2021-03-07 12:34:05 +01:00
kcm
…
key
…
l2tp
net: l2tp: reduce log level of messages in receive path, add counter instead
2021-03-17 17:06:11 +01:00
l3mdev
…
lapb
…
llc
…
mac80211
mac80211: clear the beacon's CRC after channel switch
2021-05-19 10:12:55 +02:00
mac802154
net: mac802154: Fix general protection fault
2021-04-14 08:42:13 +02:00
mpls
net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0
2021-03-17 17:06:11 +01:00
mptcp
mptcp: forbit mcast-related sockopt on MPTCP sockets
2021-04-14 08:42:09 +02:00
ncsi
net/ncsi: Avoid channel_monitor hrtimer deadlock
2021-04-14 08:42:08 +02:00
netfilter
netfilter: nftables_offload: special ethertype handling for VLAN
2021-05-14 09:50:40 +02:00
netlabel
cipso,calipso: resolve a number of problems with the DOI refcounts
2021-03-17 17:06:15 +01:00
netlink
…
netrom
…
nfc
net:nfc:digital: Fix a double free in digital_tg_recv_dep_req
2021-05-14 09:50:44 +02:00
nsh
…
openvswitch
openvswitch: fix stack OOB read while fragmenting IPv4 packets
2021-05-11 14:47:34 +02:00
packet
net/packet: remove data races in fanout operations
2021-05-14 09:50:38 +02:00
phonet
…
psample
net: psample: Fix netlink skb length with tunnel info
2021-03-07 12:34:07 +01:00
qrtr
net: qrtr: Avoid potential use after free in MHI send
2021-05-07 11:04:31 +02:00
rds
net/rds: Fix a use after free in rds_message_map_pages
2021-04-14 08:42:09 +02:00
rfkill
…
rose
…
rxrpc
…
sched
net: sched: tapr: prevent cycle_time == 0 in parse_taprio_schedule
2021-05-19 10:12:57 +02:00
sctp
sctp: Fix out-of-bounds warning in sctp_process_asconf_param()
2021-05-19 10:12:57 +02:00
smc
…
strparser
…
sunrpc
rpc: fix NULL dereference on kmalloc failure
2021-04-07 15:00:04 +02:00
switchdev
…
tipc
tipc: convert dest node's address to network order
2021-05-19 10:12:52 +02:00
tls
…
unix
…
vmw_vsock
vsock/virtio: free queued packets when closing socket
2021-05-14 09:50:41 +02:00
wimax
…
wireless
cfg80211: scan: drop entry from hidden_list on overflow
2021-05-14 09:50:00 +02:00
x25
…
xdp
xsk: Respect device's headroom and tailroom on generic xmit path
2021-05-14 09:50:28 +02:00
xfrm
xfrm: BEET mode doesn't support fragments for inner packets
2021-04-21 13:00:51 +02:00
compat.c
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devres.c
…
Kconfig
…
Makefile
…
socket.c
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sysctl_net.c
…