it was reported by clang with the option -fsanitize=memory: Uninitialized bytes in MemcmpInterceptorCommon at offset 0 inside [0x7070000002a0, 56) ==3791089==WARNING: MemorySanitizer: use-of-uninitialized-value #0 0x482a2c in memcmp (fuzzer+0x482a2c) seccomp#1 0x7fed2f120ebb in _hsh_add src/libseccomp/src/gen_bpf.c:598:9 seccomp#2 0x7fed2f121715 in _gen_bpf_action_hsh src/libseccomp/src/gen_bpf.c:796:6 seccomp#3 0x7fed2f121a53 in _gen_bpf_node src/libseccomp/src/gen_bpf.c:831:11 seccomp#4 0x7fed2f121a53 in _gen_bpf_chain.isra.0 src/libseccomp/src/gen_bpf.c:1072:13 seccomp#5 0x7fed2f121f16 in _gen_bpf_chain_lvl_res src/libseccomp/src/gen_bpf.c:977:12 seccomp#6 0x7fed2f121c74 in _gen_bpf_chain.isra.0 src/libseccomp/src/gen_bpf.c:1124:12 seccomp#7 0x7fed2f12253c in _gen_bpf_syscall src/libseccomp/src/gen_bpf.c:1520:10 seccomp#8 0x7fed2f12253c in _gen_bpf_syscalls src/libseccomp/src/gen_bpf.c:1615:18 seccomp#9 0x7fed2f12253c in _gen_bpf_arch src/libseccomp/src/gen_bpf.c:1683:7 seccomp#10 0x7fed2f12253c in _gen_bpf_build_bpf src/libseccomp/src/gen_bpf.c:2056:11 seccomp#11 0x7fed2f12253c in gen_bpf_generate src/libseccomp/src/gen_bpf.c:2321:7 seccomp#12 0x7fed2f11f41c in seccomp_export_bpf src/libseccomp/src/api.c:724:7 Uninitialized value was created by a heap allocation #0 0x4547ef in realloc (fuzzer+0x4547ef) seccomp#1 0x7fed2f121244 in _blk_resize src/libseccomp/src/gen_bpf.c:362:8 seccomp#2 0x7fed2f121244 in _blk_append src/libseccomp/src/gen_bpf.c:394:6 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

RFE: add mention of the libseccomp-golang repository #7

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