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linux/tools/lib/bpf
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Ilya Leoshkevich 9903313fb8 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 09:28:18 +01:00
..
.gitignore libbpf: Make libbpf_version.h non-auto-generated 2021-09-13 15:36:47 -07:00
bpf.c libbpf: Introduce bpf_link_get_fd_by_id_opts() 2022-10-10 16:49:20 -07:00
bpf.h libbpf: Avoid enum forward-declarations in public API in C++ mode 2022-11-30 22:56:47 +01:00
bpf_core_read.h libbpf: add bpf_core_type_matches() helper macro 2022-07-05 21:15:19 -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 Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-12-10 15:56:13 -08:00
bpf_helpers.h libbpf: Clean up legacy bpf maps declaration in bpf_helpers 2022-09-16 22:56:09 +02:00
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 invalid return address register in s390 2023-03-10 09:28:03 +01:00
btf.c libbpf: Fix btf__align_of() by taking into account field offsets 2023-03-10 09:28:02 +01:00
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 single-line struct definition output in btf_dump 2023-03-10 09:28:02 +01:00
Build libbpf: move xsk.{c,h} into selftests/bpf 2022-06-28 13:13:32 -07:00
gen_loader.c libbpf: fix an snprintf() overflow check 2022-07-19 10:47:31 -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: Hashmap.h update to fix build issues using LLVM14 2022-11-11 10:24:23 -08:00
libbpf.c libbpf: Fix map creation flags sanitization 2023-03-10 09:28:05 +01:00
libbpf.h libbpf: restore memory layout of bpf_object_open_opts 2022-09-23 16:19:37 -07:00
libbpf.map libbpf: Introduce bpf_link_get_fd_by_id_opts() 2022-10-10 16:49:20 -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: cleanup LIBBPF_DEPRECATED_SINCE supporting macros for v0.x 2022-06-28 13:13:33 -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: Making bpf_prog_load() ignore name if kernel doesn't support 2022-08-15 14:58:20 -07:00
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 2022-11-29 13:04:52 -08:00
libbpf_version.h bpf: Add libbpf logic for user-space ring buffer 2022-09-21 16:25:03 -07:00
linker.c libbpf: Add enum64 support for bpf linking 2022-06-07 10:20:43 -07:00
Makefile Merge remote-tracking branch 'torvalds/master' into perf/core 2022-12-16 09:53:53 -03:00
netlink.c libbpf: Streamline bpf_attr and perf_event_attr initialization 2022-08-17 22:42:10 +02:00
nlattr.c libbpf: Fix alen calculation in libbpf_nla_dump_errormsg() 2023-03-10 09:28:18 +01:00
nlattr.h libbpf: Switch to void * casting in netlink helpers 2021-06-22 17:04:02 +02:00
relo_core.c bpf: Correctly propagate errors up from bpf_core_composites_match 2022-07-08 15:31:43 -07:00
relo_core.h bpf, libbpf: Add type match support 2022-07-05 21:14:25 -07:00
ringbuf.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-11-29 13:04:52 -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 libbpf: relicense libbpf as LGPL-2.1 OR BSD-2-Clause 2018-10-08 10:09:48 +02:00
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: Ensure functions with always_inline attribute are inline 2022-08-04 14:43:41 -07:00
usdt.c libbpf: Parse usdt args without offset on x86 (e.g. 8@(%rsp)) 2022-12-06 16:16:50 -08:00