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linux/tools/lib/bpf
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Ilya Leoshkevich d7bd166859 libbpf: Fix alen calculation in libbpf_nla_dump_errormsg() 
[ Upstream commit 17bcd27a08 ]

The code assumes that everything that comes after nlmsgerr are nlattrs.
When calculating their size, it does not account for the initial
nlmsghdr. This may lead to accessing uninitialized memory.

Fixes: bbf48c18ee ("libbpf: add error reporting in XDP")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230210001210.395194-8-iii@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2023-03-10 09:39:16 +01:00
..
.gitignore libbpf: Stop using feature-detection Makefiles 2021-02-04 01:22:00 +01:00
bpf.c libbpf: Fix lookup_and_delete_elem_flags error reporting 2021-11-18 19:17:09 +01:00
bpf.h libbpf: Avoid enum forward-declarations in public API in C++ mode 2022-12-31 13:14:43 +01:00
bpf_core_read.h libbpf: Fix endianness detection in BPF_CORE_READ_BITFIELD_PROBED() 2021-11-18 19:16:41 +01:00
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: Cleanup temp FDs when intermediate sys_bpf fails. 2021-05-19 00:40:44 +02:00
bpf_helpers.h libbpf: Move BPF_SEQ_PRINTF and BPF_SNPRINTF to bpf_helpers.h 2021-05-26 10:45:41 -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: Fail compilation if target arch is missing 2021-06-16 20:15:30 -07:00
btf.c libbpf: Fix btf__align_of() by taking into account field offsets 2023-03-10 09:39:06 +01:00
btf.h libbpf: Fix potential misaligned memory access in btf_ext__new() 2022-01-27 11:03:16 +01:00
btf_dump.c libbpf: Fix uninitialized warning in btf_dump_dump_type_data 2022-12-31 13:14:09 +01:00
Build libbpf: Split CO-RE logic into relo_core.c. 2021-07-26 12:29:14 -07:00
gen_loader.c libbpf: fix an snprintf() overflow check 2022-08-17 14:23:32 +02:00
hashmap.c libbpf: Centralize poisoning and poison reallocarray() 2020-08-18 18:38:25 -07:00
hashmap.h libbpf, hashmap: Fix undefined behavior in hash_bits 2020-11-02 23:33:51 +01:00
libbpf.c libbpf: Fix null-pointer dereference in find_prog_by_sec_insn() 2022-12-31 13:14:06 +01:00
libbpf.h libbpf: Add uprobe ref counter offset support for USDT semaphores 2021-08-17 00:45:08 +02:00
libbpf.map libbpf: Add bpf_cookie to perf_event, kprobe, uprobe, and tp attach APIs 2021-08-17 00:45:08 +02:00
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: Implement generalized .BTF.ext func/line info adjustment 2020-09-03 17:14:40 -07:00
libbpf_errno.c libbpf: Streamline error reporting for high-level APIs 2021-05-25 17:32:35 -07:00
libbpf_internal.h libbpf: Add bpf_cookie support to bpf_link_create() API 2021-08-17 00:45:08 +02:00
libbpf_legacy.h libbpf: Streamline error reporting for low-level APIs 2021-05-25 17:32:35 -07:00
libbpf_probes.c libbpf: Use page size as max_entries when probing ring buffer map 2022-12-19 12:36:41 +01:00
linker.c libbpf: Fix using invalidated memory in bpf_linker 2022-01-27 11:03:16 +01:00
Makefile libbpf: Fix build issue with llvm-readelf 2022-04-13 20:59:03 +02:00
netlink.c libbpf: Fix memleak in libbpf_netlink_recv() 2022-04-08 14:23:31 +02:00
nlattr.c libbpf: Fix alen calculation in libbpf_nla_dump_errormsg() 2023-03-10 09:39:16 +01:00
nlattr.h libbpf: Switch to void * casting in netlink helpers 2021-06-22 17:04:02 +02:00
relo_core.c libbpf: Split CO-RE logic into relo_core.c. 2021-07-26 12:29:14 -07:00
relo_core.h libbpf: Split CO-RE logic into relo_core.c. 2021-07-26 12:29:14 -07:00
ringbuf.c libbpf: Handle size overflow for ringbuf mmap 2022-12-08 11:28:39 +01:00
skel_internal.h libbpf: Fix skel_internal.h to set errno on loader retval < 0 2021-11-18 19:16:27 +01:00
str_error.c libbpf: Poison kernel-only integer types 2020-01-10 10:38:00 -08:00
str_error.h libbpf: relicense libbpf as LGPL-2.1 OR BSD-2-Clause 2018-10-08 10:09:48 +02:00
strset.c libbpf: Fix memory leak in strset 2021-10-01 22:54:38 +02:00
strset.h libbpf: Extract internal set-of-strings datastructure APIs 2021-03-18 16:14:22 -07:00
xsk.c selftests/xsk: Avoid use-after-free on ctx 2022-10-26 12:34:41 +02:00
xsk.h libbpf: xsk: Move barriers from libbpf_util.h to xsk.h 2021-03-10 13:45:16 -08:00