treat null vdso base same as missing

[musl] / src / internal / vdso.c

diff --git a/src/internal/vdso.c b/src/internal/vdso.c
index a486217..d46d322 100644 (file)
--- a/src/internal/vdso.c
+++ b/src/internal/vdso.c
@@ -45,6 +45,7 @@ void *__vdsosym(const char *vername, const char *name)
        size_t i;
        for (i=0; libc.auxv[i] != AT_SYSINFO_EHDR; i+=2)
                if (!libc.auxv[i]) return 0;
+       if (!libc.auxv[i+1]) return 0;
        Ehdr *eh = (void *)libc.auxv[i+1];
        Phdr *ph = (void *)((char *)eh + eh->e_phoff);
        size_t *dynv=0, base=-1;