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fix segmentfault when exec dtagnames or prefcnt without any args #36

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fix segmentfault when exec dtagnames or prefcnt without any args #36

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3 changes: 3 additions & 0 deletions btf_loader.c
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Original file line number Diff line number Diff line change
Expand Up @@ -648,6 +648,9 @@ static int cus__load_btf(struct cus *cus, struct conf_load *conf, const char *fi
{
int err = -1;

if (conf == NULL)
return -1;

// Pass a zero for addr_size, we'll get it after we load via btf__pointer_size()
struct cu *cu = cu__new(filename, 0, NULL, 0, filename, false);
if (cu == NULL)
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3 changes: 3 additions & 0 deletions dwarf_loader.c
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Expand Up @@ -3315,6 +3315,9 @@ static int dwarf__load_file(struct cus *cus, struct conf_load *conf,
{
int fd, err;

if (conf == NULL)
return -1;

if (conf->max_hashtable_bits != 0) {
if (conf->max_hashtable_bits > 31)
return -E2BIG;
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