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* miscfuncs.cc (__import_address): Cover the first dereference to imp

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under the fault handler.
This commit is contained in:
Corinna Vinschen
2014-08-21 09:04:09 +00:00
parent b1f81c3b71
commit 33ed7bb5bc
2 changed files with 7 additions and 2 deletions
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5
winsup/cygwin/ChangeLog
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@@ -1,3 +1,8 @@
2014-08-21 Corinna Vinschen <corinna@vinschen.de>
* miscfuncs.cc (__import_address): Cover the first dereference to imp
under the fault handler.
2014-08-21 Corinna Vinschen <corinna@vinschen.de>
* net.cc (if_freenameindex): Don't catch a SEGV from free to fail

4
winsup/cygwin/miscfuncs.cc
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@@ -512,11 +512,11 @@ slashify (const char *src, char *dst, bool trailing_slash_p)
void * __reg1
__import_address (void *imp)
{
if (*((uint16_t *) imp) != 0x25ff)
return NULL;
myfault efault;
if (efault.faulted ())
return NULL;
if (*((uint16_t *) imp) != 0x25ff)
return NULL;
const char *ptr = (const char *) imp;
#ifdef __x86_64__
const uintptr_t *jmpto = (uintptr_t *) (ptr + 6 + *(int32_t *)(ptr + 2));