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Fix UBSan gcc warning for first arg to memset non null
767/head
author
Julien Malik
<julien.malik@paraiso.me>
Mon, 2 May 2016 10:13:24 +0000
(12:13 +0200)
committer
Julien Malik
<julien.malik@paraiso.me>
Mon, 2 May 2016 10:13:24 +0000
(12:13 +0200)
src/lib/openjp2/t1.c
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diff --git
a/src/lib/openjp2/t1.c
b/src/lib/openjp2/t1.c
index 1e9480bd9ed69159f166b9af79555267a2918782..1bf7205e9886069f3bc026d412ac4928d4436593 100644
(file)
--- a/
src/lib/openjp2/t1.c
+++ b/
src/lib/openjp2/t1.c
@@
-1180,7
+1180,10
@@
static OPJ_BOOL opj_t1_allocate_buffers(
}
t1->datasize=datasize;
}
- memset(t1->data,0,datasize * sizeof(OPJ_INT32));
+ /* memset first arg is declared to never be null by gcc */
+ if (t1->data != NULL) {
+ memset(t1->data,0,datasize * sizeof(OPJ_INT32));
+ }
}
t1->flags_stride=w+2;
flagssize=t1->flags_stride * (h+2);