From: Andrii Nakryiko <andrii@kernel.org>
To: <bpf@vger.kernel.org>, <ast@kernel.org>, <daniel@iogearbox.net>
Cc: <andrii@kernel.org>, <kernel-team@fb.com>
Subject: [PATCH v2 bpf-next 0/5] libbpf ELF sanity checking improvements
Date: Wed, 3 Nov 2021 10:32:08 -0700 [thread overview]
Message-ID: <20211103173213.1376990-1-andrii@kernel.org> (raw)
Few patches fixing various issues discovered by oss-fuzz project fuzzing
bpf_object__open() call. Fixes are mostly focused around additional simple
sanity checks of ELF format: symbols, relos, etc.
v1->v2:
- address Yonghong's feedback.
Andrii Nakryiko (5):
libbpf: detect corrupted ELF symbols section
libbpf: improve sanity checking during BTF fix up
libbpf: validate that .BTF and .BTF.ext sections contain data
libbpf: fix section counting logic
libbpf: improve ELF relo sanitization
tools/lib/bpf/libbpf.c | 43 +++++++++++++++++++++++++++++-------------
1 file changed, 30 insertions(+), 13 deletions(-)
--
2.30.2
next reply other threads:[~2021-11-03 17:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-03 17:32 Andrii Nakryiko [this message]
2021-11-03 17:32 ` [PATCH v2 bpf-next 1/5] libbpf: detect corrupted ELF symbols section Andrii Nakryiko
2021-11-03 17:32 ` [PATCH v2 bpf-next 2/5] libbpf: improve sanity checking during BTF fix up Andrii Nakryiko
2021-11-03 17:32 ` [PATCH v2 bpf-next 3/5] libbpf: validate that .BTF and .BTF.ext sections contain data Andrii Nakryiko
2021-11-03 17:32 ` [PATCH v2 bpf-next 4/5] libbpf: fix section counting logic Andrii Nakryiko
2021-11-03 17:32 ` [PATCH v2 bpf-next 5/5] libbpf: improve ELF relo sanitization Andrii Nakryiko
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