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| author |   Andrii Nakryiko <andrii@kernel.org> | 2021-10-22 17:31:56 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2021-10-22 17:33:31 -0700 |
| commit | 5245dafe3d49efba4d3285cf27ee1cc1eeafafc6 (patch) | |
| tree | 62ded1edf9df0e669f175a35d0a8f3633f82d11b /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | Merge branch 'bpf: add support for BTF_KIND_DECL_TAG typedef' (diff) | |
| download | linux-dev-5245dafe3d49efba4d3285cf27ee1cc1eeafafc6.tar.xz linux-dev-5245dafe3d49efba4d3285cf27ee1cc1eeafafc6.zip | |
libbpf: Fix overflow in BTF sanity checks
btf_header's str_off+str_len or type_off+type_len can overflow as they
are u32s. This will lead to bypassing the sanity checks during BTF
parsing, resulting in crashes afterwards. Fix by using 64-bit signed
integers for comparison.
Fixes: d8123624506c ("libbpf: Fix BTF data layout checks and allow empty BTF")
Reported-by: Evgeny Vereshchagin <evvers@ya.ru>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211023003157.726961-1-andrii@kernel.org
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions