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Signed-off-by: Ben Taylor <ben.taylor@linaro.org>
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Ben Taylor 2026-06-02 15:38:02 +01:00
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ChangeLog.d/pkcs-free-stale-pointers.txt
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Security
* Fix a use-after-free/double-free risk in mbedtls_pkcs7_free() when reusing an mbedtls_pkcs7 context
across parse -> free -> parse -> free cycles. The function now clears the signer list after freeing it,
across parse -> free -> parse -> free cycles. The function now resets the context after freeing it,
ensuring stale signed_data.signers.next pointers cannot be walked by a later free operation.