x509asn1: avoid freeing unallocated pointers #10087
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When utf8asn1str fails there is no allocation returned, so freeing the return pointer in **to is at best a no-op and at worst a double- free bug waiting to happen. The current coding isn't hiding any such bugs but to future proof, avoid freeing the return value pointer iff the function failed. Closes: #xxxx
bagder
approved these changes
Dec 13, 2022
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When utf8asn1str fails there is no allocation returned, so freeing the return pointer in **to is at best a no-op and at worst a double- free bug waiting to happen. The current coding isn't hiding any such bugs but to future proof, avoid freeing the return value pointer iff the function failed.