Andreas Ziegler 030958c2d0 libbpf: Add NULL checks to bpf_object__{prev_map,next_map} ... [ Upstream commit cedc12c5b57f7efa6dbebfb2b140e8675f5a2616 ] In the current state, an erroneous call to bpf_object__find_map_by_name(NULL, ...) leads to a segmentation fault through the following call chain: bpf_object__find_map_by_name(obj = NULL, ...) -> bpf_object__for_each_map(pos, obj = NULL) -> bpf_object__next_map((obj = NULL), NULL) -> return (obj = NULL)->maps While calling bpf_object__find_map_by_name with obj = NULL is obviously incorrect, this should not lead to a segmentation fault but rather be handled gracefully. As __bpf_map__iter already handles this situation correctly, we can delegate the check for the regular case there and only add a check in case the prev or next parameter is NULL. Signed-off-by: Andreas Ziegler <ziegler.andreas@siemens.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20240703083436.505124-1-ziegler.andreas@siemens.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-09-12 11:11:36 +02:00
..
.gitignore	libbpf: Make libbpf_version.h non-auto-generated	2021-09-13 15:36:47 -07:00
Build	libbpf: Move elf_find_func_offset* functions to elf object	2023-08-21 15:51:25 -07:00
Makefile	libbpf: fix typos in Makefile	2023-08-02 13:58:51 -07:00
bpf.c	libbpf: Add bpf_link_create support for multi uprobes	2023-08-21 15:51:26 -07:00
bpf.h	libbpf: Add missing LIBBPF_API annotation to libbpf_set_memlock_rlim API	2024-03-26 18:19:24 -04:00
bpf_core_read.h	bpf: Avoid uninitialized value in BPF_CORE_READ_BITFIELD	2024-07-11 12:49:09 +02:00
bpf_endian.h	libbpf: Make bpf_endian co-exist with vmlinux.h	2020-07-01 09:06:12 +02:00
bpf_gen_internal.h	libbpf: Support kfunc detection in light skeleton.	2023-03-22 09:31:05 -07:00
bpf_helpers.h	libbpf: fix offsetof() and container_of() to work with CO-RE	2023-05-12 12:05:21 -07:00
bpf_prog_linfo.c	libbpf: Streamline error reporting for high-level APIs	2021-05-25 17:32:35 -07:00
bpf_tracing.h	libbpf: Fix syscall access arguments on riscv	2023-11-20 11:59:00 +01:00
btf.c	libbpf: Ensure libbpf always opens files with O_CLOEXEC	2023-05-26 12:05:32 +02:00
btf.h	libbpf: Don't require full struct enum64 in UAPI headers	2022-09-27 20:45:17 +02:00
btf_dump.c	libbpf: Fix no-args func prototype BTF dumping syntax	2024-08-03 08:54:36 +02:00
elf.c	libbpf: Add elf_resolve_pattern_offsets function	2023-08-21 15:51:26 -07:00
gen_loader.c	libbpf: Store zero fd to fd_array for loader kfunc relocation	2023-05-16 22:09:23 -07:00
hashmap.c	libbpf: Hashmap interface update to allow both long and void* keys/values	2022-11-09 20:45:14 -08:00
hashmap.h	libbpf: Remove HASHMAP_INIT static initialization helper	2023-07-11 09:40:05 -07:00
libbpf.c	libbpf: Add NULL checks to bpf_object__{prev_map,next_map}	2024-09-12 11:11:36 +02:00
libbpf.h	libbpf: Add bpf_object__unpin()	2023-08-23 17:10:09 -07:00
libbpf.map	libbpf: Add bpf_object__unpin()	2023-08-23 17:10:09 -07:00
libbpf.pc.template	libbpf: Add zlib as a dependency in pkg-config template	2019-12-16 14:55:29 -08:00
libbpf_common.h	libbpf: Fix potential uninitialized tail padding with LIBBPF_OPTS_RESET	2024-02-05 20:14:18 +00:00
libbpf_errno.c	libbpf: Optimized return value in libbpf_strerror when errno is libbpf errno	2022-12-14 18:39:33 +01:00
libbpf_internal.h	libbpf: Fix faccessat() usage on Android	2024-03-26 18:19:23 -04:00
libbpf_legacy.h	libbpf: Clean up deprecated and legacy aliases	2022-08-17 22:42:56 +02:00
libbpf_probes.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-06-08 11:35:14 -07:00
libbpf_version.h	libbpf: Start v1.3 development cycle	2023-05-23 21:39:12 +02:00
linker.c	libbpf: Checking the btf_type kind when fixing variable offsets	2024-08-03 08:53:39 +02:00
netlink.c	libbpf: Use OPTS_SET() macro in bpf_xdp_query()	2024-03-26 18:19:26 -04:00
nlattr.c	libbpf: Fix alen calculation in libbpf_nla_dump_errormsg()	2023-02-10 15:27:22 -08:00
nlattr.h	libbpf: add API to get XDP/XSK supported features	2023-02-02 20:48:24 -08:00
relo_core.c	libbpf: fix signedness determination in CO-RE relo handling logic	2023-08-23 21:13:48 -07:00
relo_core.h	bpf, libbpf: Add type match support	2022-07-05 21:14:25 -07:00
ringbuf.c	libbpf: Use bpf_{btf,link,map,prog}_get_info_by_fd()	2023-02-16 15:32:45 -08:00
skel_internal.h	libbpf: add map_get_fd_by_id and map_delete_elem in light skeleton	2022-08-25 18:52:29 -07:00
str_error.c	libbpf: Poison kernel-only integer types	2020-01-10 10:38:00 -08:00
str_error.h	…
strset.c	libbpf: Hashmap interface update to allow both long and void* keys/values	2022-11-09 20:45:14 -08:00
strset.h	libbpf: Extract internal set-of-strings datastructure APIs	2021-03-18 16:14:22 -07:00
usdt.bpf.h	libbpf: Use local includes inside the library	2023-08-04 15:06:46 -07:00
usdt.c	libbpf: Add uprobe multi link support to bpf_program__attach_usdt	2023-08-21 15:51:26 -07:00
zip.c	libbpf: Ignore warnings about "inefficient alignment"	2023-03-16 18:20:08 +01:00
zip.h	libbpf: Implement basic zip archive parsing support	2023-03-01 16:05:34 -08:00