Hao Luo 2a77c58726 bpf: Add MEM_RDONLY for helper args that are pointers to rdonly mem. ... commit 216e3cd2f2 upstream. Some helper functions may modify its arguments, for example, bpf_d_path, bpf_get_stack etc. Previously, their argument types were marked as ARG_PTR_TO_MEM, which is compatible with read-only mem types, such as PTR_TO_RDONLY_BUF. Therefore it's legitimate, but technically incorrect, to modify a read-only memory by passing it into one of such helper functions. This patch tags the bpf_args compatible with immutable memory with MEM_RDONLY flag. The arguments that don't have this flag will be only compatible with mutable memory types, preventing the helper from modifying a read-only memory. The bpf_args that have MEM_RDONLY are compatible with both mutable memory and immutable memory. Signed-off-by: Hao Luo <haoluo@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20211217003152.48334-9-haoluo@google.com Cc: stable@vger.kernel.org # 5.15.x Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-05-01 17:22:26 +02:00
..
6lowpan	6lowpan: iphc: Fix an off-by-one check of array index	2021-07-22 16:19:03 +02:00
9p	xen/9p: use alloc/free_pages_exact()	2022-03-11 12:22:36 +01:00
802	net: 802: remove dead leftover after ipx driver removal	2021-08-13 16:30:35 -07:00
8021q	net: vlan: fix underflow for the real_dev refcnt	2021-12-01 09:04:53 +01:00
appletalk	net: socket: rework compat_ifreq_ioctl()	2021-07-23 14:20:25 +01:00
atm	atm: Use list_for_each_entry() to simplify code in resources.c	2021-06-10 14:08:09 -07:00
ax25	ax25: Fix UAF bugs in ax25 timers	2022-04-20 09:34:22 +02:00
batman-adv	ipv6: make mc_forwarding atomic	2022-04-13 20:59:03 +02:00
bluetooth	Bluetooth: Fix use after free in hci_send_acl	2022-04-13 20:59:09 +02:00
bpf	bpf: Make remote_port field in struct bpf_sk_lookup 16-bit wide	2022-04-13 20:59:25 +02:00
bpfilter	bpfilter: Specify the log level for the kmsg message	2021-06-25 13:13:50 +02:00
bridge	net: bridge: multicast: notify switchdev driver whenever MC processing gets disabled	2022-02-23 12:03:13 +01:00
caif	net-caif: avoid user-triggerable WARN_ON(1)	2021-09-14 12:51:15 +01:00
can	can: isotp: stop timeout monitoring when no first frame was sent	2022-04-27 14:38:54 +02:00
ceph	Networking changes for 5.14.	2021-06-30 15:51:09 -07:00
core	bpf: Add MEM_RDONLY for helper args that are pointers to rdonly mem.	2022-05-01 17:22:26 +02:00
dcb	net: dcb: disable softirqs in dcbnl_flush_dev()	2022-03-08 19:12:52 +01:00
dccp	tcp: switch orphan_count to bare per-cpu counters	2021-11-18 19:16:33 +01:00
decnet	net: Remove redundant if statements	2021-08-05 13:27:50 +01:00
dns_resolver	net: remove redundant 'depends on NET'	2021-01-27 17:04:12 -08:00
dsa	net: dsa: hellcreek: Calculate checksums in tagger	2022-04-27 14:38:54 +02:00
ethernet	move netdev_boot_setup into Space.c	2021-08-03 13:05:26 +01:00
ethtool	ethtool: do not perform operations on net devices being unregistered	2021-12-14 10:57:09 +01:00
hsr	net: hsr: don't check sequence number if tag removal is offloaded	2021-06-16 12:13:01 -07:00
ieee802154	net: ieee802154: Return meaningful error codes from the netlink helpers	2022-02-08 18:34:09 +01:00
ife	net: remove redundant 'depends on NET'	2021-01-27 17:04:12 -08:00
ipv4	esp: limit skb_page_frag_refill use to a single page	2022-04-27 14:38:52 +02:00
ipv6	ipv6: make ip6_rt_gc_expire an atomic_t	2022-04-27 14:38:54 +02:00
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	af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register	2022-04-08 14:22:47 +02:00
l2tp	net/l2tp: Fix reference count leak in l2tp_udp_recv_core	2021-09-09 11:00:20 +01:00
l3mdev	l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu	2022-04-27 14:38:53 +02:00
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: only change llc->dev when bind() succeeds	2022-03-28 09:58:46 +02:00
mac80211	mac80211: limit bandwidth in HE capabilities	2022-04-08 14:23:28 +02:00
mac802154	ieee802154: Remove redundant initialization of variable ret	2021-09-07 14:06:08 +01:00
mctp	mctp: Fix check for dev_hard_header() result	2022-04-13 20:59:16 +02:00
mpls	net: mpls: Fix notifications when deleting a device	2021-12-08 09:04:47 +01:00
mptcp	mptcp: Correctly set DATA_FIN timeout when number of retransmits is large	2022-03-08 19:12:48 +01:00
ncsi	net/ncsi: check for error return from call to nla_put_u32	2022-01-05 12:42:37 +01:00
netfilter	netfilter: nft_ct: fix use after free when attaching zone template	2022-04-27 14:39:01 +02:00
netlabel	netlabel: fix out-of-bounds memory accesses	2022-04-13 20:59:10 +02:00
netlink	netlink: reset network and mac headers in netlink_dump()	2022-04-27 14:38:54 +02:00
netrom	netrom: fix api breakage in nr_setsockopt()	2022-01-27 11:04:00 +01:00
nfc	nfc: nci: add flush_workqueue to prevent uaf	2022-04-20 09:34:13 +02:00
nsh	…
openvswitch	netfilter: conntrack: convert to refcount_t api	2022-04-27 14:39:01 +02:00
packet	net/packet: fix packet_sock xmit return value checking	2022-04-27 14:38:53 +02:00
phonet	phonet: refcount leak in pep_sock_accep	2022-01-11 15:35:16 +01:00
psample	psample: Add additional metadata attributes	2021-03-14 15:00:43 -07:00
qrtr	net: qrtr: revert check in qrtr_endpoint_post()	2021-09-02 11:37:02 +01:00
rds	rds: memory leak in __rds_conn_create()	2021-12-22 09:32:42 +01:00
rfkill	rfkill: make new event layout opt-in	2022-04-08 14:23:00 +02:00
rose	net: rose: Fix fall-through warnings for Clang	2021-03-10 12:45:15 -08:00
rxrpc	rxrpc: Restore removed timer deletion	2022-04-27 14:38:53 +02:00
sched	netfilter: conntrack: convert to refcount_t api	2022-04-27 14:39:01 +02:00
sctp	sctp: Initialize daddr on peeled off socket	2022-04-20 09:34:12 +02:00
smc	net/smc: Fix sock leak when release after smc_shutdown()	2022-04-27 14:38:53 +02:00
strparser	bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding	2021-11-18 19:17:11 +01:00
sunrpc	SUNRPC: Fix NFSD's request deferral on RDMA transports	2022-04-20 09:34:18 +02:00
switchdev	net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge	2021-08-04 12:35:07 +01:00
tipc	tipc: fix the timer expires after interval 100ms	2022-04-08 14:23:43 +02:00
tls	net/tls: fix slab-out-of-bounds bug in decrypt_internal	2022-04-13 20:59:15 +02:00
unix	af_unix: Support POLLPRI for OOB.	2022-04-08 14:24:14 +02:00
vmw_vsock	vsock/virtio: enable VQs early on probe	2022-04-08 14:23:51 +02:00
wireless	nl80211: correctly check NL80211_ATTR_REG_ALPHA2 size	2022-04-20 09:34:19 +02:00
x25	net/x25: Fix null-ptr-deref caused by x25_disconnect	2022-04-08 14:23:53 +02:00
xdp	xsk: Fix race at socket teardown	2022-04-08 14:23:36 +02:00
xfrm	xfrm: fix tunnel model fragmentation behavior	2022-04-08 14:22:46 +02:00
Kconfig	mctp: Add MCTP base	2021-07-29 15:06:49 +01:00
Makefile	mctp: Add MCTP base	2021-07-29 15:06:49 +01:00
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
socket.c	net: fix SOF_TIMESTAMPING_BIND_PHC to work with multiple sockets	2022-01-27 11:03:52 +01:00
sysctl_net.c	net: Ensure net namespace isolation of sysctls	2021-04-12 13:27:11 -07:00