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| author | Pierre Ynard <linkfanel@yahoo.fr> | 2013-06-28 21:43:42 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2013-06-28 21:43:42 +0000 |
| commit | 0432680e8c2ecd832038387f92b462dea75e94cc (patch) | |
| tree | e917253c568202b91d781dfbcb05bd2f8d90e6dd /elf | |
| parent | ce61a2ad2e078a19454411832b167444b6c9ae66 (diff) | |
| download | glibc-0432680e8c2ecd832038387f92b462dea75e94cc.tar.gz glibc-0432680e8c2ecd832038387f92b462dea75e94cc.tar.xz glibc-0432680e8c2ecd832038387f92b462dea75e94cc.zip | |
Test for mprotect failure in dl-load.c (bug 12492).
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/dl-load.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/elf/dl-load.c b/elf/dl-load.c index d53ead4db3..655e38ee4b 100644 --- a/elf/dl-load.c +++ b/elf/dl-load.c @@ -1487,7 +1487,11 @@ cannot allocate TLS data structures for initial thread"); if (__builtin_expect (p + s <= relro_end, 1)) { /* The variable lies in the region protected by RELRO. */ - __mprotect ((void *) p, s, PROT_READ|PROT_WRITE); + if (__mprotect ((void *) p, s, PROT_READ|PROT_WRITE) < 0) + { + errstring = N_("cannot change memory protections"); + goto call_lose_errno; + } __stack_prot |= PROT_READ|PROT_WRITE|PROT_EXEC; __mprotect ((void *) p, s, PROT_READ); } |