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authorBobby Bingham <koorogi@koorogi.info>2016-07-25 22:52:58 -0500
committerRich Felker <dalias@aerifal.cx>2016-11-11 12:58:27 -0500
commit54482898abe8d6d937ee67ea5974cd8eae859c37 (patch)
tree400a5d1fbfee1cb3b90f3a215f3da7b771dca3c9 /src
parentb418ea1b66d0d5a08640d4edf3b65d4619c6ef7f (diff)
downloadmusl-54482898abe8d6d937ee67ea5974cd8eae859c37.tar.gz
treat null vdso base same as missing
On s390x, the kernel provides AT_SYSINFO_EHDR, but sets it to zero, if the program being run does not have a program interpreter. This causes problems when running the dynamic linker directly.
Diffstat (limited to 'src')
-rw-r--r--src/internal/vdso.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/internal/vdso.c b/src/internal/vdso.c
index a4862171..d46d3228 100644
--- 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;