linux/net
Vladimir Oltean fb66df20a7 net/sched: taprio: extend minimum interval restriction to entire cycle too
It is possible for syzbot to side-step the restriction imposed by the
blamed commit in the Fixes: tag, because the taprio UAPI permits a
cycle-time different from (and potentially shorter than) the sum of
entry intervals.

We need one more restriction, which is that the cycle time itself must
be larger than N * ETH_ZLEN bit times, where N is the number of schedule
entries. This restriction needs to apply regardless of whether the cycle
time came from the user or was the implicit, auto-calculated value, so
we move the existing "cycle == 0" check outside the "if "(!new->cycle_time)"
branch. This way covers both conditions and scenarios.

Add a selftest which illustrates the issue triggered by syzbot.

Fixes: b5b73b26b3 ("taprio: Fix allowing too small intervals")
Reported-by: syzbot+a7d2b1d5d1af83035567@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/0000000000007d66bc06196e7c66@google.com/
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20240527153955.553333-2-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-28 19:46:41 -07:00
..
6lowpan net: fill in MODULE_DESCRIPTION()s for 6LoWPAN 2024-02-09 14:12:01 -08:00
9p virtio: features, fixes, cleanups 2024-05-23 12:04:36 -07:00
802
8021q net: annotate writes on dev->mtu from ndo_change_mtu() 2024-05-07 16:19:14 -07:00
appletalk Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
atm net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
ax25 net-accept-more-20240515 2024-05-18 10:32:39 -07:00
batman-adv tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
bluetooth net-accept-more-20240515 2024-05-18 10:32:39 -07:00
bpf bpf: check bpf_dummy_struct_ops program params for test runs 2024-04-25 12:42:43 -07:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2024-05-15 07:30:49 -07:00
caif caif: Use UTILITY_NAME_LENGTH instead of hard-coding 16 2024-04-02 18:20:00 -07:00
can linux-can-next-for-6.9-20240220 2024-02-20 15:32:45 +01:00
ceph libceph: init the cursor when preparing sparse read in msgr2 2024-03-06 12:43:01 +01:00
core sock_map: avoid race between sock_map_close and sk_psock_put 2024-05-28 12:05:19 +02:00
dcb
dccp net: dccp: Fix ccid2_rtt_estimator() kernel-doc 2024-05-07 16:15:08 -07:00
devlink devlink: extend devlink_param *set pointer 2024-04-22 13:05:19 -07:00
dns_resolver
dsa tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
ethernet netkit: Fix pkt_type override upon netkit pass verdict 2024-05-25 10:48:57 -07:00
ethtool net: revert partially applied PHY topology series 2024-05-13 18:35:02 -07:00
handshake net/handshake: remove redundant assignment to variable ret 2024-04-16 17:14:55 -07:00
hsr Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
ieee802154 tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
ife
ipv4 tcp: reduce accepted window in NEW_SYN_RECV state 2024-05-27 16:47:23 -07:00
ipv6 tcp: reduce accepted window in NEW_SYN_RECV state 2024-05-27 16:47:23 -07:00
iucv more s390 updates for 6.10 merge window 2024-05-21 12:09:36 -07:00
kcm net: kcm: fix incorrect parameter validation in the kcm_getsockopt) function 2024-03-11 09:53:22 +00:00
key net: fill in MODULE_DESCRIPTION()s for af_key 2024-02-09 14:12:01 -08:00
l2tp l2tp: fix ICMP error handling for UDP-encap sockets 2024-05-17 12:15:22 -07:00
l3mdev
lapb
llc net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
mac80211 tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
mac802154 mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-03-06 21:01:26 +01:00
mctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-02-29 14:24:56 -08:00
mpls net: Remove the now superfluous sentinel elements from ctl_table array 2024-05-03 13:29:41 +01:00
mptcp net-accept-more-20240515 2024-05-18 10:32:39 -07:00
ncsi
netfilter netfilter pull request 24-05-12 2024-05-13 13:12:35 -07:00
netlabel netlabel: fix RCU annotation for IPv4 options on socket creation 2024-05-13 14:58:12 -07:00
netlink netlink: support all extack types in dumps 2024-04-23 10:09:49 -07:00
netrom net-accept-more-20240515 2024-05-18 10:32:39 -07:00
nfc Quite smaller than usual. Notably it includes the fix for the unix 2024-05-23 12:49:37 -07:00
nsh nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment(). 2024-04-26 12:20:01 +02:00
openvswitch Quite smaller than usual. Notably it includes the fix for the unix 2024-05-23 12:49:37 -07:00
packet af_packet: do not call packet_read_pending() from tpacket_destruct_skb() 2024-05-16 19:38:05 -07:00
phonet net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
psample ip_tunnel: convert __be16 tunnel flags to bitmaps 2024-04-01 10:49:28 +01:00
qrtr net: qrtr: ns: Fix module refcnt 2024-05-16 09:47:45 +01:00
rds net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
rfkill net: rfkill: gpio: Convert to platform remove callback returning void 2024-03-25 15:40:22 +01:00
rose net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
rxrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
sched net/sched: taprio: extend minimum interval restriction to entire cycle too 2024-05-28 19:46:41 -07:00
sctp net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
smc tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
strparser
sunrpc The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
switchdev net: bridge: switchdev: Improve error message for port_obj_add/del functions 2024-05-08 12:19:12 +01:00
tipc tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
tls tls: fix missing memory barrier in tls_init 2024-05-23 12:03:26 +02:00
unix af_unix: Read sk->sk_hash under bindlock during bind(). 2024-05-27 11:46:56 +02:00
vmw_vsock virtio: features, fixes, cleanups 2024-05-23 12:04:36 -07:00
wireless tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
x25 net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
xdp xsk: use generic DMA sync shortcut instead of a custom one 2024-05-08 08:51:20 +02:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
compat.c
devres.c
Kconfig net: add IEEE 802.1q specific helpers 2024-05-08 10:35:09 +01:00
Kconfig.debug
Makefile
socket.c net: have do_accept() take a struct proto_accept_arg argument 2024-05-13 18:19:19 -06:00
sysctl_net.c sysctl: treewide: constify argument ctl_table_root::permissions(table) 2024-04-24 09:43:54 +02:00