linux/net
Daniel Borkmann 507c2f1d29 net, neigh: Add build-time assertion to avoid neigh->flags overflow
Currently, NDA_FLAGS_EXT flags allow a maximum of 24 bits to be used for
extended neighbor flags. These are eventually fed into neigh->flags by
shifting with NTF_EXT_SHIFT as per commit 2c611ad97a ("net, neigh:
Extend neigh->flags to 32 bit to allow for extensions").

If really ever needed in future, the full 32 bits from NDA_FLAGS_EXT can
be used, it would only require to move neigh->flags from u32 to u64 inside
the kernel.

Add a build-time assertion such that when extending the NTF_EXT_MASK with
new bits, we'll trigger an error once we surpass the 24th bit. This assumes
that no bit holes in new NTF_EXT_* flags will slip in from UAPI, but I
think this is reasonable to assume.

Suggested-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-14 19:16:21 -07:00
..
6lowpan 6lowpan: iphc: Fix an off-by-one check of array index 2021-07-22 16:19:03 +02:00
9p net/9p: increase default msize to 128k 2021-09-05 08:36:44 +09:00
802 llc/snap: constify dev_addr passing 2021-10-13 09:40:46 -07:00
8021q net: use eth_hw_addr_set() instead of ether_addr_copy() 2021-10-02 14:18:25 +01:00
appletalk net: socket: rework compat_ifreq_ioctl() 2021-07-23 14:20:25 +01:00
atm ethernet: replace netdev->dev_addr assignment loops 2021-10-14 09:22:25 -07:00
ax25 ax25: constify dev_addr passing 2021-10-13 09:40:45 -07:00
batman-adv Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
bluetooth bluetooth-next pull request for net-next: 2021-10-05 07:41:16 -07:00
bpf Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-10-01 19:58:02 -07:00
bpfilter bpfilter: Specify the log level for the kmsg message 2021-06-25 13:13:50 +02:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-07 15:24:06 -07:00
caif net-caif: avoid user-triggerable WARN_ON(1) 2021-09-14 12:51:15 +01:00
can net: Remove redundant if statements 2021-08-05 13:27:50 +01:00
ceph Networking changes for 5.14. 2021-06-30 15:51:09 -07:00
core net, neigh: Add build-time assertion to avoid neigh->flags overflow 2021-10-14 19:16:21 -07:00
dcb net: dcb: Return the correct errno code 2021-06-01 17:01:33 -07:00
dccp dccp: don't duplicate ccid when cloning dccp sock 2021-09-08 11:28:35 +01:00
decnet net: Remove redundant if statements 2021-08-05 13:27:50 +01:00
dns_resolver
dsa Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-14 16:50:14 -07:00
ethernet eth: platform: add a helper for loading netdev->dev_addr 2021-10-08 14:54:33 +01:00
ethtool ethtool: Add ability to control transceiver modules' power mode 2021-10-06 17:47:49 -07:00
hsr net: use eth_hw_addr_set() instead of ether_addr_copy() 2021-10-02 14:18:25 +01:00
ieee802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-08-13 06:41:22 -07:00
ife
ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-14 16:50:14 -07:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-14 16:50:14 -07:00
iucv net/iucv: Replace deprecated CPU-hotplug functions. 2021-08-09 10:13:32 +01:00
kcm net: sock: introduce sk_error_report 2021-06-29 11:28:21 -07:00
key net: Remove unnecessary variables 2021-05-26 07:03:39 +02:00
l2tp net/l2tp: Fix reference count leak in l2tp_udp_recv_core 2021-09-09 11:00:20 +01:00
l3mdev
lapb net: lapb: Use list_for_each_entry() to simplify code in lapb_iface.c 2021-06-08 16:31:25 -07:00
llc llc/snap: constify dev_addr passing 2021-10-13 09:40:46 -07:00
mac80211 net: mac80211: check return value of rhashtable_init 2021-09-28 12:59:24 +01:00
mac802154 ieee802154: Remove redundant initialization of variable ret 2021-09-07 14:06:08 +01:00
mctp mctp: Add input reassembly tests 2021-10-03 14:35:41 +01:00
mpls mpls: defer ttl decrement in mpls_forward() 2021-07-23 17:17:56 +01:00
mptcp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-14 16:50:14 -07:00
ncsi net/ncsi: add get MAC address command to get Intel i210 MAC address 2021-09-01 17:18:56 -07:00
netfilter netfilter: nf_tables: honor NLM_F_CREATE and NLM_F_EXCL in event notification 2021-10-02 12:00:17 +02:00
netlabel net: fix NULL pointer reference in cipso_v4_doi_free 2021-08-30 12:23:18 +01:00
netlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-07 15:24:06 -07:00
netrom ax25: constify dev_addr passing 2021-10-13 09:40:45 -07:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-14 16:50:14 -07:00
nsh
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-08-19 18:09:18 -07:00
packet net/packet: clarify source of pr_*() messages 2021-09-10 10:00:59 +01:00
phonet net: Remove redundant if statements 2021-08-05 13:27:50 +01:00
psample
qrtr net: qrtr: combine nameservice into main module 2021-09-28 17:36:43 -07:00
rds net/rds: dma_map_sg is entitled to merge entries 2021-08-18 15:35:50 -07:00
rfkill
rose rose: constify dev_addr passing 2021-10-13 09:40:45 -07:00
rxrpc rxrpc: Fix _usecs_to_jiffies() by using usecs_to_jiffies() 2021-09-24 14:18:34 +01:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-14 16:50:14 -07:00
sctp sctp: account stream padding length for reconf chunk 2021-10-14 07:15:22 -07:00
smc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-14 16:50:14 -07:00
strparser net: sock: introduce sk_error_report 2021-06-29 11:28:21 -07:00
sunrpc Bug fixes for NFSD error handling paths 2021-10-07 14:11:40 -07:00
switchdev net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge 2021-08-04 12:35:07 +01:00
tipc tipc: constify dev_addr passing 2021-10-13 09:40:46 -07:00
tls net/tls: support SM4 CCM algorithm 2021-09-28 13:26:23 +01:00
unix af_unix: Rename UNIX-DGRAM to UNIX to maintain backwards compatability 2021-10-12 11:16:49 +01:00
vmw_vsock vsock: Enable y2038 safe timeval for timeout 2021-10-08 16:21:53 +01:00
wireless cfg80211: use wiphy DFS domain if it is self-managed 2021-08-26 11:04:55 +02:00
x25 net: x25: Use list_for_each_entry() to simplify code in x25_route.c 2021-06-10 14:08:09 -07:00
xdp xsk: Fix clang build error in __xp_alloc 2021-09-29 13:59:13 +02:00
xfrm xfrm: fix rcu lock in xfrm_notify_userpolicy() 2021-09-23 10:11:12 +02:00
compat.c net: Return the correct errno code 2021-06-03 15:13:56 -07:00
devres.c net: devres: Correct a grammatical error 2021-06-11 12:55:28 -07:00
Kconfig net/core: disable NET_RX_BUSY_POLL on PREEMPT_RT 2021-10-01 15:45:10 -07:00
Makefile mctp: Add MCTP base 2021-07-29 15:06:49 +01:00
socket.c Core: 2021-08-31 16:43:06 -07:00
sysctl_net.c