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jpg: fix memory corruption

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cinap_lenrek 2012-05-29 17:53:49 +02:00
parent 845db4c372
commit d3243530d7
1 changed files with 4 additions and 2 deletions
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6
sys/src/cmd/jpg/readjpg.c
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@ -488,8 +488,10 @@ huffmantable(Header *h, uchar *b)
/* flow chart C-2 */
nsize = 0;
for(i=0; i<16; i++)
nsize += b[1+i];
for(i=1; i<=16; i++)
nsize += b[i];
if(nsize == 0)
return 0;
t->size = jpgmalloc(h, (nsize+1)*sizeof(int), 1);
k = 0;
for(i=1; i<=16; i++){