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| author | Andrii Nakryiko <[email protected]> | 2021-12-13 17:00:32 -0800 |
|---|---|---|
| committer | Daniel Borkmann <[email protected]> | 2021-12-14 15:37:58 +0100 |
| commit | 4581e676d3be9d8c921a48bf18e92c5a8f31bf13 (patch) | |
| tree | a4084e42da2abbc4a1725b9e2d98fa7467cfe12e /net/unix/sysctl_net_unix.c | |
| parent | d27a662290963a1cde26cdfdbac71a546c06e94a (diff) | |
libbpf: Fix potential uninit memory read
In case of BPF_CORE_TYPE_ID_LOCAL we fill out target result explicitly.
But targ_res itself isn't initialized in such a case, and subsequent
call to bpf_core_patch_insn() might read uninitialized field (like
fail_memsz_adjust in this case). So ensure that targ_res is
zero-initialized for BPF_CORE_TYPE_ID_LOCAL case.
This was reported by Coverity static analyzer.
Signed-off-by: Andrii Nakryiko <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Diffstat (limited to 'net/unix/sysctl_net_unix.c')
0 files changed, 0 insertions, 0 deletions