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| author | Andrii Nakryiko | 2019-07-19 21:32:42 +0200 |
|---|---|---|
| committer | Alexei Starovoitov | 2019-07-19 21:37:18 +0200 |
| commit | 04efe5911fb30664a56ec63d272a0f39a71545db (patch) | |
| tree | cc7cd8cf784c8f3e620c793aa7068a8fe43b2414 /usr | |
| parent | tcp: fix tcp_set_congestion_control() use from bpf hook (diff) | |
| download | kernel-qcow2-linux-04efe5911fb30664a56ec63d272a0f39a71545db.tar.gz kernel-qcow2-linux-04efe5911fb30664a56ec63d272a0f39a71545db.tar.xz kernel-qcow2-linux-04efe5911fb30664a56ec63d272a0f39a71545db.zip | |
libbpf: fix SIGSEGV when BTF loading fails, but .BTF.ext exists
In case when BTF loading fails despite sanitization, but BPF object has
.BTF.ext loaded as well, we free and null obj->btf, but not
obj->btf_ext. This leads to an attempt to relocate .BTF.ext later on
during bpf_object__load(), which assumes obj->btf is present. This leads
to SIGSEGV on null pointer access. Fix bug by freeing and nulling
obj->btf_ext as well.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'usr')
0 files changed, 0 insertions, 0 deletions