Andrii Nakryiko 7d0b3953f6 libbpf: don't close(-1) in multi-uprobe feature detector ...

Guard close(link_fd) with extra link_fd >= 0 check to prevent close(-1).

Detected by Coverity static analysis.

Fixes: 04d939a2ab ("libbpf: detect broken PID filtering logic for multi-uprobe")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20240529231212.768828-1-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

2024-05-31 14:56:51 -07:00

..

.gitignore

libbpf: Make libbpf_version.h non-auto-generated

2021-09-13 15:36:47 -07:00

bpf_core_read.h

bpf: Avoid uninitialized value in BPF_CORE_READ_BITFIELD

2024-05-08 15:00:55 -07:00

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 bpf_ksym_exists() in GCC

2024-05-02 22:47:22 -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: Avoid casts from pointers to enums in bpf_tracing.h

2024-05-02 22:58:58 -07:00

bpf.c

libbpf: fix feature detectors when using token_fd

2024-05-15 09:34:53 -07:00

bpf.h

libbpf: add support for BPF cookie for raw_tp/tp_btf programs

2024-03-19 23:05:34 -07:00

btf_dump.c

libbpf: Fix dump of subsequent char arrays

2024-04-17 15:24:02 +02:00

btf.c

libbpf: Correct debug message in btf__load_vmlinux_btf

2024-03-04 14:33:51 +01:00

btf.h

libbpf: Don't require full struct enum64 in UAPI headers

2022-09-27 20:45:17 +02:00

Build

libbpf: Move feature detection code into its own file

2024-01-24 16:21:02 -08:00

elf.c

libbpf: Move feature detection code into its own file

2024-01-24 16:21:02 -08:00

features.c

libbpf: don't close(-1) in multi-uprobe feature detector

2024-05-31 14:56:51 -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_common.h

libbpf: Fix potential uninitialized tail padding with LIBBPF_OPTS_RESET

2023-11-09 19:07:51 -08:00

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: Mark libbpf_kallsyms_parse static function

2024-03-28 18:31:41 -07:00

libbpf_legacy.h

libbpf: Clean up deprecated and legacy aliases

2022-08-17 22:42:56 +02:00

libbpf_probes.c

bpf: improve error message for unsupported helper

2024-03-28 18:30:53 -07:00

libbpf_version.h

libbpf: Start v1.5 development cycle

2024-04-06 09:11:10 -07:00

libbpf.c

libbpf: improve early detection of doomed-to-fail BPF program loading

2024-05-07 16:21:59 -07:00

libbpf.h

libbpf: Add support for kprobe session attach

2024-04-30 09:45:53 -07:00

libbpf.map

libbpf: Add bpf_link support for BPF_PROG_TYPE_SOCKMAP

2024-04-10 19:52:25 -07:00

libbpf.pc.template

libbpf: Add zlib as a dependency in pkg-config template

2019-12-16 14:55:29 -08:00

linker.c

libbpf: Add missed btf_ext__raw_data() API

2024-02-01 22:16:12 +01:00

Makefile

kbuild: unexport abs_srctree and abs_objtree

2024-03-10 17:27:17 +09:00

netlink.c

libbpf: Use OPTS_SET() macro in bpf_xdp_query()

2024-02-06 09:51:26 -08:00

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: fix ring_buffer__consume_n() return result logic

2024-05-02 16:41:03 -07:00

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: fix libbpf_strerror_r() handling unknown errors

2024-05-07 16:21:59 -07:00

str_error.h

libbpf: Move feature detection code into its own file

2024-01-24 16:21:02 -08:00

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: Avoid casts from pointers to enums in bpf_tracing.h

2024-05-02 22:58:58 -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