Jiri Olsa 380044c40b libbpf: Prevent double close and leak of btf objects ... Sashiko found possible double close of btf object fd [1], which happens when strdup in load_module_btfs fails at which point the obj->btf_module_cnt is already incremented. The error path close btf fd and so does later cleanup code in bpf_object_post_load_cleanup function. Also libbpf_ensure_mem failure leaves btf object not assigned and it's leaked. Replacing the err_out label with break to make the error path less confusing as suggested by Alan. Incrementing obj->btf_module_cnt only if there's no failure and releasing btf object in error path. Fixes: 91abb4a6d7 ("libbpf: Support attachment of BPF tracing programs to kernel modules") [1] https://sashiko.dev/#/patchset/20260324081846.2334094-1-jolsa%40kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20260416100034.1610852-1-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2026-04-16 16:00:10 -07:00
..
.gitignore	tools build: Correct bpf fixdep dependencies	2024-08-05 12:19:48 -03:00
bpf_core_read.h	bpf: Fix uninitialized values in BPF_{CORE,PROBE}_READ	2025-05-05 14:20:28 -07:00
bpf_endian.h
bpf_gen_internal.h	libbpf: Embed and verify the metadata hash in the loader	2025-09-22 19:17:55 -07:00
bpf_helpers.h	libbpf: Remove extern declaration of bpf_stream_vprintk()	2026-02-18 14:58:47 -08:00
bpf_prog_linfo.c
bpf_tracing.h	libbpf: Fix powerpc's stack register definition in bpf_tracing.h	2025-10-23 11:25:16 -07:00
bpf.c	libbpf: add fsession support	2026-01-24 18:49:36 -08:00
bpf.h	libbpf: Add BPF_F_CPU and BPF_F_ALL_CPUS flags support for percpu maps	2026-01-06 20:48:32 -08:00
btf_dump.c	libbpf: Fix OOB read in btf_dump_get_bitfield_value	2026-01-09 15:54:31 -08:00
btf_iter.c	libbpf,bpf: Share BTF relocate-related code with kernel	2024-06-21 14:45:07 -07:00
btf_relocate.c	libbpf: Fix incorrect traversal end type ID when marking BTF_IS_EMBEDDED	2025-01-16 15:34:18 -08:00
btf.c	libbpf: BTF validation can use layout for unknown kinds	2026-03-26 13:53:56 -07:00
btf.h	libbpf: Add layout encoding support	2026-03-26 13:53:56 -07:00
Build	libbpf: move libbpf_errstr() into libbpf_utils.c	2025-10-01 15:27:25 -07:00
elf.c	libbpf: move libbpf_errstr() into libbpf_utils.c	2025-10-01 15:27:25 -07:00
features.c	libbpf: Support sanitization of BTF layout for older kernels	2026-03-26 13:53:56 -07:00
gen_loader.c	libbpf: move libbpf_errstr() into libbpf_utils.c	2025-10-01 15:27:25 -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: Fix possible compiler warnings in hashmap	2024-10-11 12:36:59 -07:00
libbpf_common.h	libbpf: Fix potential uninitialized tail padding with LIBBPF_OPTS_RESET	2023-11-09 19:07:51 -08:00
libbpf_internal.h	libbpf: Allow use of feature cache for non-token cases	2026-04-10 12:34:36 -07:00
libbpf_legacy.h	libbpf: Fix some typos in comments	2024-09-09 16:05:40 -07:00
libbpf_probes.c	libbpf: Support sanitization of BTF layout for older kernels	2026-03-26 13:53:56 -07:00
libbpf_utils.c	libbpf: Fix undefined behavior in {get,put}_unaligned_be32()	2025-10-06 09:16:29 -07:00
libbpf_version.h	libbpf: Start v1.8 development cycle	2026-03-16 14:15:15 -07:00
libbpf.c	libbpf: Prevent double close and leak of btf objects	2026-04-16 16:00:10 -07:00
libbpf.h	libbpf: Clarify raw-address single kprobe attach behavior	2026-04-02 13:23:19 -07:00
libbpf.map	libbpf: Fix BTF handling in bpf_program__clone()	2026-04-02 13:02:46 -07:00
libbpf.pc.template
linker.c	libbpf: Fix invalid write loop logic in bpf_linker__add_buf()	2026-02-13 14:14:27 -08:00
Makefile	tools: Remove redundant quiet setup	2025-02-18 16:27:43 -03:00
netlink.c	bpftool: Fix truncated netlink dumps	2026-02-17 16:54:03 -08:00
nlattr.c	libbpf: Use proper errno value in nlattr	2025-05-12 15:22:54 -07:00
nlattr.h	libbpf: add API to get XDP/XSK supported features	2023-02-02 20:48:24 -08:00
relo_core.c	bpf: reject negative CO-RE accessor indices in bpf_core_parse_spec()	2026-04-07 08:27:55 -07:00
relo_core.h	bpf, libbpf: Add type match support	2022-07-05 21:14:25 -07:00
ringbuf.c	libbpf: move libbpf_errstr() into libbpf_utils.c	2025-10-01 15:27:25 -07:00
skel_internal.h	libbpf: Update light skeleton for signing	2025-09-22 19:17:25 -07:00
strset.c	libbpf: Hashmap interface update to allow both long and void* keys/values	2022-11-09 20:45:14 -08:00
strset.h
usdt.bpf.h	libbpf: Fix USDT SIB argument handling causing unrecognized register error	2025-08-27 15:44:25 -07:00
usdt.c	libbpf: Add support to detect nop,nop5 instructions combo for usdt probe	2026-03-03 08:39:22 -08:00
zip.c	libbpf: Remove unneeded semicolon	2024-10-03 17:47:35 -07:00
zip.h	libbpf: Implement basic zip archive parsing support	2023-03-01 16:05:34 -08:00