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Kumar Kartikeya Dwivedi 7ada3787e9 bpf: Check for NULL return from bpf_get_btf_vmlinux 
When CONFIG_DEBUG_INFO_BTF is disabled, bpf_get_btf_vmlinux can return a
NULL pointer. Check for it in btf_get_module_btf to prevent a NULL pointer
dereference.

While kernel test robot only complained about this specific case, let's
also check for NULL in other call sites of bpf_get_btf_vmlinux.

Fixes: 9492450fd287 ("bpf: Always raise reference in btf_get_module_btf")
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220320143003.589540-1-memxor@gmail.com
2022-03-20 19:21:38 -07:00
..
bpf_sk_storage.c
bpf: Check for NULL return from bpf_get_btf_vmlinux
2022-03-20 19:21:38 -07:00
datagram.c
net: avoid double accounting for pure zerocopy skbs
2021-11-03 11:19:49 +00:00
datagram.h
net/core: Allow the compiler to verify declaration and definition consistency
2019-03-27 13:49:44 -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_addr_lists.c
dev_addr_list: put the first addr on the tree
2021-11-20 12:25:57 +00:00
dev_ioctl.c
net_tstamp: add new flag HWTSTAMP_FLAG_BONDED_PHC_INDEX
2021-12-14 12:28:24 +00:00
dev.c
net: dev: use kfree_skb_reason() for __netif_receive_skb_core()
2022-03-04 12:17:11 +00:00
devlink.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2021-12-31 14:35:40 +00:00
drop_monitor.c
drop_monitor: remove quadratic behavior
2022-02-23 12:39:58 +00:00
dst_cache.c
wireguard: device: reset peer src endpoint when netns exits
2021-11-29 19:50:45 -08:00
dst.c
net: dst: add net device refcount tracking to dst_entry
2021-12-06 16:05:10 -08:00
failover.c
net: failover: add net device refcount tracker
2021-12-06 16:06:02 -08:00
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: Treat bpf_sk_lookup remote_port as a 2-byte field
2022-03-20 18:58:59 -07:00
flow_dissector.c
flow_dissector: Add support for HSR
2022-03-02 22:44:49 -08:00
flow_offload.c
flow_offload: add reoffload process to update hw_count
2021-12-19 14:08:48 +00:00
gen_estimator.c
net: sched: Remove Qdisc::running sequence counter
2021-10-18 12:54:41 +01:00
gen_stats.c
net: stats: Read the statistics in ___gnet_stats_copy_basic() instead of adding.
2021-10-21 12:47:56 +01:00
gro_cells.c
gro_cells: avoid using synchronize_rcu() in gro_cells_destroy()
2022-02-22 11:25:40 -08:00
gro.c
net: gro: minor optimization for dev_gro_receive()
2022-02-05 15:13:52 +00:00
hwbm.c
net: hwbm: Make the hwbm_pool lock a mutex
2019-06-09 19:40:10 -07:00
link_watch.c
net: refine dev_put()/dev_hold() debugging
2022-02-05 15:22:45 +00:00
lwt_bpf.c
net: Don't include filter.h from net/sock.h
2021-12-29 08:48:14 -08:00
lwtunnel.c
lwtunnel: Validate RTA_ENCAP_TYPE attribute length
2021-12-31 14:31:59 +00:00
Makefile
net: kunit: add a test for dev_addr_lists
2021-11-20 12:25:57 +00:00
neighbour.c
net: neigh: use kfree_skb_reason() for __neigh_event_send()
2022-02-26 12:53:59 +00:00
net_namespace.c
net: initialize init_net earlier
2022-02-06 11:04:29 +00:00
net-procfs.c
net-procfs: show net devices bound packet types
2022-01-24 11:58:46 +00:00
net-sysfs.c
net-sysfs: add check for netdevice being present to speed_show
2022-02-18 10:59:11 +00:00
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
netclassid_cgroup.c
bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode
2021-09-13 16:35:58 -07:00
netevent.c
net: core: Correct function name netevent_unregister_notifier() in the kerneldoc
2021-03-28 17:56:56 -07:00
netpoll.c
netpoll: add net device refcount tracker to struct netpoll
2021-12-06 16:06:02 -08:00
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
page_pool: Add function to batch and return stats
2022-03-03 09:55:28 +00:00
pktgen.c
proc: remove PDE_DATA() completely
2022-01-22 08:33:37 +02:00
ptp_classifier.c
bpf: Refactor BPF_PROG_RUN into a function
2021-08-17 00:45:07 +02:00
request_sock.c
tcp: add rcu protection around tp->fastopen_rsk
2019-10-13 10:13:08 -07:00
rtnetlink.c
net: rtnetlink: Add UAPI toggle for IFLA_OFFLOAD_XSTATS_L3_STATS
2022-03-03 10:37:23 +00:00
scm.c
memcg: enable accounting for scm_fp_list objects
2021-07-20 06:00:38 -07:00
secure_seq.c
net: align static siphash keys
2021-11-16 19:07:54 -08:00
selftests.c
net: core: constify mac addrs in selftests
2021-10-24 13:59:44 +01:00
skbuff.c
net: skb: introduce the function kfree_skb_list_reason()
2022-03-04 12:17:11 +00:00
skmsg.c
bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full
2022-03-15 16:43:31 +01:00
sock_destructor.h
skb_expand_head() adjust skb->truesize incorrectly
2021-10-22 12:35:51 -07:00
sock_diag.c
net: Don't include filter.h from net/sock.h
2021-12-29 08:48:14 -08:00
sock_map.c
bpf: support BPF_PROG_QUERY for progs attached to sockmap
2022-01-20 21:30:58 -08:00
sock_reuseport.c
tcp: Add stats for socket migration.
2021-06-23 12:56:08 -07:00
sock.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-02-24 17:54:25 -08:00
stream.c
net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
2021-10-16 09:06:09 +01:00
sysctl_net_core.c
net/sysctl: avoid two synchronize_rcu() calls
2022-02-28 11:40:47 +00:00
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
veth: Rework veth_xdp_rcv_skb in order to accept non-linear skb
2022-03-17 20:33:52 +01:00