mirror of
https://github.com/wolfSSL/wolfssl.git
synced 2026-08-20 09:23:22 +02:00
Tobias Frauenschläger
f7b4dab947
The function freed the extension's dynamically allocated ASN.1 string buffer but left value.data and value.isDynamic pointing at it. The subsequent wolfSSL_ASN1_STRING_copy() call snapshots those fields before copying and frees the old buffer once the copy is complete, so the stale pointer was freed a second time. Any second call to wolfSSL_X509_EXTENSION_set_data() on an extension holding a value of at least CTC_NAME_SIZE bytes hit this, and passing the extension its own value made the copy read freed memory as well. wolfSSL_ASN1_STRING_set() already performs an alias safe replacement and disposes of the previous buffer itself, so drop the manual free. Add a regression test that replaces a dynamically allocated extension value and then sets the value from itself. Fixes F-7340.
Before creating any new configure files (.conf) read the CONF_FILES_README.md