Andrii Nakryiko bcc5e6162d bpf: Allow empty module BTFs ... Some modules don't declare any new types and end up with an empty BTF, containing only valid BTF header and no types or strings sections. This currently causes BTF validation error. There is nothing wrong with such BTF, so fix the issue by allowing module BTFs with no types or strings. Fixes: 36e68442d1 ("bpf: Load and verify kernel module BTFs") Reported-by: Christopher William Snowhill <chris@kode54.net> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20210110070341.1380086-1-andrii@kernel.org		2021-01-12 21:11:30 +01:00
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preload	bpf: BPF_PRELOAD depends on BPF_SYSCALL	2020-11-05 18:49:29 -08:00
arraymap.c	bpf: Eliminate rlimit-based memory accounting for arraymap maps	2020-12-02 18:32:46 -08:00
bpf_inode_storage.c	bpf: Fix typo in bpf_inode_storage.c	2021-01-12 16:07:57 +01:00
bpf_iter.c	bpf: Permit cond_resched for some iterators	2020-10-28 14:54:31 -07:00
bpf_local_storage.c	bpf: Eliminate rlimit-based memory accounting for bpf local storage maps	2020-12-02 18:32:47 -08:00
bpf_lru_list.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206	2019-05-30 11:29:53 -07:00
bpf_lru_list.h	bpf: Fix a typo "inacitve" -> "inactive"	2020-04-06 21:54:10 +02:00
bpf_lsm.c	bpf: Add a BPF helper for getting the IMA hash of an inode	2020-11-26 00:04:04 +01:00
bpf_struct_ops.c	bpf: Eliminate rlimit-based memory accounting for bpf_struct_ops maps	2020-12-02 18:32:46 -08:00
bpf_struct_ops_types.h	bpf: tcp: Support tcp_congestion_ops in bpf	2020-01-09 08:46:18 -08:00
bpf_task_storage.c	bpf: Local storage helpers should check nullness of owner ptr passed	2021-01-12 16:07:56 +01:00
btf.c	bpf: Allow empty module BTFs	2021-01-12 21:11:30 +01:00
cgroup.c	bpf: Don't leak memory in bpf getsockopt when optlen == 0	2021-01-12 21:05:07 +01:00
core.c	bpf: Eliminate rlimit-based memory accounting for bpf progs	2020-12-02 18:32:47 -08:00
cpumap.c	bpf: Eliminate rlimit-based memory accounting for cpumap maps	2020-12-02 18:32:46 -08:00
devmap.c	bpf: Eliminate rlimit-based memory accounting for devmap maps	2020-12-02 18:32:46 -08:00
disasm.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295	2019-06-05 17:36:38 +02:00
disasm.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295	2019-06-05 17:36:38 +02:00
dispatcher.c	bpf: Remove bpf_image tree	2020-03-13 12:49:52 -07:00
hashtab.c	bpf: Add schedule point in htab_init_buckets()	2020-12-22 00:14:31 +01:00
helpers.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-12-11 22:29:38 -08:00
inode.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-09-22 16:45:34 -07:00
local_storage.c	bpf: Eliminate rlimit-based memory accounting for cgroup storage maps	2020-12-02 18:32:46 -08:00
lpm_trie.c	bpf: Eliminate rlimit-based memory accounting for lpm_trie maps	2020-12-02 18:32:46 -08:00
Makefile	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-11-14 09:13:41 -08:00
map_in_map.c	bpf: Relax max_entries check for most of the inner map types	2020-08-28 15:41:30 +02:00
map_in_map.h	bpf: Add map_meta_equal map ops	2020-08-28 15:41:30 +02:00
map_iter.c	bpf: Implement link_query callbacks in map element iterators	2020-08-21 14:01:39 -07:00
net_namespace.c	bpf: Add support for forced LINK_DETACH command	2020-08-01 20:38:28 -07:00
offload.c	bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill	2020-02-17 16:53:49 +01:00
percpu_freelist.c	bpf: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI	2020-10-06 00:04:11 +02:00
percpu_freelist.h	bpf: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI	2020-10-06 00:04:11 +02:00
prog_iter.c	bpf: Refactor bpf_iter_reg to have separate seq_info member	2020-07-25 20:16:32 -07:00
queue_stack_maps.c	bpf: Eliminate rlimit-based memory accounting for queue_stack_maps maps	2020-12-02 18:32:46 -08:00
reuseport_array.c	bpf: Eliminate rlimit-based memory accounting for reuseport_array maps	2020-12-02 18:32:47 -08:00
ringbuf.c	bpf: Eliminate rlimit-based memory accounting for bpf ringbuffer	2020-12-02 18:32:47 -08:00
stackmap.c	Networking updates for 5.11	2020-12-15 13:22:29 -08:00
syscall.c	bpf: Prevent double bpf_prog_put call from bpf_tracing_prog_attach	2021-01-12 00:17:34 +01:00
sysfs_btf.c	bpf: Load and verify kernel module BTFs	2020-11-10 15:25:53 -08:00
task_iter.c	bpf: Fix a task_iter bug caused by a merge conflict resolution	2021-01-03 01:41:32 +01:00
tnum.c	bpf: Verifier, do explicit ALU32 bounds tracking	2020-03-30 14:59:53 -07:00
trampoline.c	bpf: Move prog->aux->linked_prog and trampoline into bpf_link on attach	2020-09-29 13:09:23 -07:00
verifier.c	Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-12-14 15:34:36 -08:00