Reference in a new issue

Blame

Copy permalink

Reference in a new issue

Copy permalink

Daniel Xu 8f7cc7c763 bpf: tcp: Mark bpf_load_hdr_opt() arg2 as read-write ... [ Upstream commit 8ac412a336 ] MEM_WRITE attribute is defined as: "Non-presence of MEM_WRITE means that MEM is only being read". bpf_load_hdr_opt() both reads and writes from its arg2 - void *search_res. This matters a lot for the next commit where we more precisely track stack accesses. Without this annotation, the verifier will make false assumptions about the contents of memory written to by helpers and possibly prune valid branches. Fixes: 6fad274f06 ("bpf: Add MEM_WRITE attribute") Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Signed-off-by: Daniel Xu <dxu@dxuuu.xyz> Link: https://lore.kernel.org/r/730e45f8c39be2a5f3d8c4406cceca9d574cbf14.1736886479.git.dxu@dxuuu.xyz Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2025-02-21 13:49:09 +01:00
..
bpf_sk_storage.c	bpf: Refactor some inode/task/sk storage functions for reuse	2024-07-18 13:18:34 +02:00
datagram.c	net: fix rc7's __skb_datagram_iter()	2024-07-18 13:18:33 +02:00
dev.c	net: reenable NETIF_F_IPV6_CSUM offload for BIG TCP packets	2025-01-09 13:30:02 +01:00
dev.h	net: fix removing a namespace with conflicting altnames	2024-01-31 16:17:04 -08:00
dev_addr_lists.c	net: extract a few internals from netdevice.h	2022-04-07 20:32:09 -07:00
dev_addr_lists_test.c	net: kunit: add a test for dev_addr_lists	2021-11-20 12:25:57 +00:00
dev_ioctl.c	net: dev: Convert sa_data to flexible array in struct sockaddr	2024-03-01 13:26:36 +01:00
drop_monitor.c	drop_monitor: replace spin_lock by raw_spin_lock	2024-06-27 13:46:15 +02:00
dst.c	net: do not delay dst_entries_add() in dst_release()	2024-11-14 13:15:17 +01:00
dst_cache.c	wireguard: device: reset peer src endpoint when netns exits	2021-11-29 19:50:45 -08:00
failover.c	net: rename reference+tracking helpers	2022-06-09 21:52:55 -07:00
fib_notifier.c	net: fib_notifier: propagate extack down to the notifier block callback	2019-10-04 11:10:56 -07:00
fib_rules.c	fib: expand fib_rule_policy	2021-12-16 07:18:35 -08:00
filter.c	bpf: tcp: Mark bpf_load_hdr_opt() arg2 as read-write	2025-02-21 13:49:09 +01:00
flow_dissector.c	net: flow_dissector: use DEBUG_NET_WARN_ON_ONCE	2024-08-03 08:49:24 +02:00
flow_offload.c	flow_offload: Introduce flow_match_l2tpv3	2022-09-20 09:13:38 +02:00
gen_estimator.c	net: use unrcu_pointer() helper	2024-12-14 19:53:33 +01:00
gen_stats.c	net: sched: fix misuse of qcpu->backlog in gnet_stats_add_queue_cpu	2022-08-16 19:38:20 -07:00
gro.c	gro: fix ownership transfer	2024-04-10 16:28:26 +02:00
gro_cells.c	net: drop the weight argument from netif_napi_add	2022-09-28 18:57:14 -07:00
hwbm.c	net: hwbm: Make the hwbm_pool lock a mutex	2019-06-09 19:40:10 -07:00
link_watch.c	net: linkwatch: use system_unbound_wq	2024-08-14 13:52:44 +02:00
lwt_bpf.c	lwt: Fix return values of BPF xmit ops	2023-09-13 09:42:33 +02:00
lwtunnel.c	xfrm: lwtunnel: squelch kernel warning in case XFRM encap type is not available	2022-10-12 10:45:51 +02:00
Makefile	devlink: move code to a dedicated directory	2023-08-30 16:11:00 +02:00
neighbour.c	net/neighbor: clear error in case strict check is not set	2024-12-14 19:54:45 +01:00
net-procfs.c	net: extract a few internals from netdevice.h	2022-04-07 20:32:09 -07:00
net-sysfs.c	ethtool: check device is present when getting link settings	2024-09-04 13:25:01 +02:00
net-sysfs.h	net-sysfs: add netdev_change_owner()	2020-02-26 20:07:25 -08:00
net-traces.c	tcp: add tracepoint for checksum errors	2021-05-14 15:26:03 -07:00
net_namespace.c	net: add exit_batch_rtnl() method	2025-01-23 17:17:09 +01:00
netclassid_cgroup.c	core: Variable type completion	2022-08-31 09:40:34 +01:00
netevent.c	net: core: Correct function name netevent_unregister_notifier() in the kerneldoc	2021-03-28 17:56:56 -07:00
netpoll.c	netpoll: Use rcu_access_pointer() in __netpoll_setup	2024-12-14 19:54:45 +01:00
netprio_cgroup.c	bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode	2021-09-13 16:35:58 -07:00
of_net.c	Revert "of: net: support NVMEM cells with MAC in text format"	2022-01-12 14:14:36 +00:00
page_pool.c	net: page_pool: add missing free_percpu when page_pool_init fail	2023-11-20 11:52:16 +01:00
pktgen.c	pktgen: Avoid out-of-bounds access in get_imix_entries	2025-01-23 17:17:09 +01:00
ptp_classifier.c	ptp: Add generic PTP is_sync() function	2022-03-07 11:31:34 +00:00
request_sock.c	tcp: make sure init the accept_queue's spinlocks once	2024-01-31 16:17:03 -08:00
rtnetlink.c	net: fix crash when config small gso_max_size/gso_ipv4_max_size	2024-12-14 19:53:11 +01:00
scm.c	io_uring/unix: drop usage of io_uring socket	2024-03-26 18:20:22 -04:00
secure_seq.c	tcp: Fix data-races around sysctl knobs related to SYN option.	2022-07-20 10:14:49 +01:00
selftests.c	net: core: constify mac addrs in selftests	2021-10-24 13:59:44 +01:00
skbuff.c	net: dsa: tag_ocelot: call only the relevant portion of __skb_vlan_pop() on TX	2024-08-29 17:30:43 +02:00
skmsg.c	tcp_bpf: Add sk_rmem_alloc related logic for tcp_bpf ingress redirection	2025-01-02 10:30:48 +01:00
sock.c	net: restrict SO_REUSEPORT to inet sockets	2025-01-09 13:30:02 +01:00
sock_destructor.h	skb_expand_head() adjust skb->truesize incorrectly	2021-10-22 12:35:51 -07:00
sock_diag.c	net: use unrcu_pointer() helper	2024-12-14 19:53:33 +01:00
sock_map.c	bpf, sockmap: Fix race between element replace and close()	2025-01-17 13:34:36 +01:00
sock_reuseport.c	soreuseport: Fix socket selection for SO_INCOMING_CPU.	2022-12-31 13:32:04 +01:00
stream.c	net: Return error from sk_stream_wait_connect() if sk_wait_event() fails	2024-01-01 12:38:56 +00:00
sysctl_net_core.c	net: let net.core.dev_weight always be non-zero	2025-02-21 13:49:05 +01:00
timestamping.c	net: Introduce a new MII time stamping interface.	2019-12-25 19:51:33 -08:00
tso.c	net: tso: add UDP segmentation support	2020-06-18 20:46:23 -07:00
utils.c	net: core: Use csum_replace_by_diff() and csum_sub() instead of opencoding	2022-02-21 11:40:44 +00:00
xdp.c	xdp: fix invalid wait context of page_pool_destroy()	2024-08-03 08:49:09 +02:00