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curl: fix segmentation fault for empty output file names.

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Function glob_match_url set *result to NULL when called with filename =
"", producing an indirect NULL pointer dereference.

Closes #8606
This commit is contained in:
Ian Blanes 2022-03-28 09:39:09 +02:00 • committed by Daniel Stenberg
parent a6c3b7d6f5
commit 9e5bd9ba19
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3 changed files with 13 additions and 1 deletions
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5
src/tool_operate.c
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@ -1020,6 +1020,11 @@ static CURLcode single_transfer(struct GlobalConfig *global,
warnf(global, "bad output glob!\n");
break;
}
if(!*per->outfile) {
warnf(global, "output glob produces empty string!\n");
result = CURLE_WRITE_ERROR;
break;
}
}
if(config->output_dir && *config->output_dir) {