linux/tools/lib
Eduard Zingerman 9ea8fb379f libbpf: Verify that arena map exists when adding arena relocations
[ Upstream commit 42be23e8f2 ]

Fuzzer reported a memory access error in bpf_program__record_reloc()
that happens when:
- ".addr_space.1" section exists
- there is a relocation referencing this section
- there are no arena maps defined in BTF.

Sanity checks for maps existence are already present in
bpf_program__record_reloc(), hence this commit adds another one.

[1] https://github.com/libbpf/libbpf/actions/runs/16375110681/job/46272998064

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250718222059.281526-1-eddyz87@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-08-20 18:30:29 +02:00
..
api tools: Drop nonsensical -O6 2024-09-11 13:08:36 -03:00
bpf libbpf: Verify that arena map exists when adding arena relocations 2025-08-20 18:30:29 +02:00
perf libperf: evlist: Fix --cpu argument on hybrid platform 2024-12-19 18:13:17 +01:00
subcmd perf tools: Fix use-after-free in help_unknown_cmd() 2025-08-15 12:13:51 +02:00
symbol tools: Drop nonsensical -O6 2024-09-11 13:08:36 -03:00
thermal thermal/lib: Fix memory leak on error in thermal_genl_auto() 2024-12-05 14:01:21 +01:00
argv_split.c tools lib: Move argv_{split,free} from tools/perf/util/ 2019-07-01 22:50:40 -03:00
bitmap.c radix tree test suite: put definition of bitmap_clear() into lib/bitmap.c 2024-07-10 14:24:27 -07:00
cmdline.c memblock test: fix implicit declaration of function 'memparse' 2024-08-06 08:21:25 +03:00
ctype.c tools perf: Move from sane_ctype.h obtained from git to the Linux's original 2019-06-25 21:02:47 -03:00
find_bit.c tools: sync find_bit() implementation 2022-09-21 12:21:44 -07:00
hweight.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
list_sort.c tools/lib/list_sort: remove redundant code for cond_resched handling 2024-06-24 22:25:04 -07:00
rbtree.c tools lib rbtree: pick some improvements from the kernel rbtree code 2024-05-08 08:41:27 -07:00
slab.c tools: Move gfp.h and slab.h from radix-tree to lib 2022-02-20 08:44:37 +02:00
str_error_r.c objtool, perf: Fix GCC 8 -Wrestrict error 2018-03-19 13:51:54 -03:00
string.c perf annotate: Add disasm_line__parse() to parse raw instruction for powerpc 2024-07-31 16:12:59 -03:00
vsprintf.c perf script: Pad DSO name for --call-trace 2019-05-28 18:37:44 -03:00
zalloc.c tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00