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Red Hat Bugzilla – Attachment 932577 Details for
Bug 1135370
USE_AFTER_FREE in source/common/usprep.cpp in function usprep_prepare()
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This a patch file for the bug freeing twice memory in source/common/usprep.cpp in ICU4c in version 53.1
usprep.patch (text/plain), 930 bytes, created by
rajnish kumar
on 2014-08-29 07:33:26 UTC
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Description:
This a patch file for the bug freeing twice memory in source/common/usprep.cpp in ICU4c in version 53.1
Filename:
MIME Type:
Creator:
rajnish kumar
Created:
2014-08-29 07:33:26 UTC
Size:
930 bytes
patch
obsolete
>diff -Naurp a/source/common/usprep.cpp b/source/common/usprep.cpp >--- a/source/common/usprep.cpp 2014-08-27 10:38:24.360821077 +0530 >+++ b/source/common/usprep.cpp 2014-08-27 10:38:38.696821312 +0530 >@@ -796,16 +796,23 @@ usprep_prepare( const UStringPrepProfi > } > > CLEANUP: >- if(b1!=b1Stack){ >- uprv_free(b1); >- b1=NULL; >- } >- >- if(b2!=b1Stack && b2!=b2Stack && b2!=b1 /* b1 should not be freed twice */){ >- uprv_free(b2); >- b2=NULL; >- } >- return u_terminateUChars(dest, destCapacity, b2Len, status); >+ if(b2==b1 && b1!=b1Stack){ >+ uprv_free(b1); >+ b1=NULL; >+ b2=NULL; >+ } >+ else >+ { >+ if(b1!=b1Stack){ >+ uprv_free(b1); >+ b1=NULL; >+ } >+ if(b2!=b1Stack && b2!=b2Stack && b2!=b1 /* b1 should not be freed twice */){ >+ uprv_free(b2); >+ b2=NULL; >+ } >+ } >+ return u_terminateUChars(dest, destCapacity, b2Len, status); > } > >
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