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[PATCH] getauxval: fix crash on systems without HAVE_AUX_VECTOR
From: |
Samuel Thibault |
Subject: |
[PATCH] getauxval: fix crash on systems without HAVE_AUX_VECTOR |
Date: |
Sat, 2 Apr 2016 12:57:16 +0200 |
User-agent: |
Mutt/1.5.21+34 (58baf7c9f32f) (2010-12-30) |
Systems without HAVE_AUX_VECTOR have GLRO(dl_auxv) == NULL, and
getauxval would thus crash.
* misc/getauxval.c (__getauxval): Check for GLRO(dl_auxv) != NULL before
looping through the list.
diff --git a/misc/getauxval.c b/misc/getauxval.c
index e48f40f..7ba0598 100644
--- a/misc/getauxval.c
+++ b/misc/getauxval.c
@@ -30,9 +30,10 @@ __getauxval (unsigned long int type)
else if (type == AT_HWCAP2)
return GLRO(dl_hwcap2);
- for (p = GLRO(dl_auxv); p->a_type != AT_NULL; p++)
- if (p->a_type == type)
- return p->a_un.a_val;
+ if (GLRO(dl_auxv) != NULL)
+ for (p = GLRO(dl_auxv); p->a_type != AT_NULL; p++)
+ if (p->a_type == type)
+ return p->a_un.a_val;
__set_errno (ENOENT);
return 0;
- [PATCH] getauxval: fix crash on systems without HAVE_AUX_VECTOR,
Samuel Thibault <=