pkcs7: fix error check of PKCS7_RECIP_INFO_set()#1035
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This function actually returns a value <=0 on error, but it is not documented as such. Example from OpenSSL code [1] and implementation [2] indicate as such. [1] https://github.com/openssl/openssl/blob/4b8ddae690d6449005e474bfdfe73106d4d6c5ea/crypto/pkcs7/pk7_lib.c#L578 [2] https://github.com/openssl/openssl/blob/4b8ddae690d6449005e474bfdfe73106d4d6c5ea/crypto/pkcs7/pk7_lib.c#L625
rhenium
approved these changes
Apr 20, 2026
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This function actually returns a value <=0 on error, but it is not documented as such.
Example from OpenSSL code [1] and implementation [2] indicate as such.
[1] https://github.com/openssl/openssl/blob/4b8ddae690d6449005e474bfdfe73106d4d6c5ea/crypto/pkcs7/pk7_lib.c#L578
[2] https://github.com/openssl/openssl/blob/4b8ddae690d6449005e474bfdfe73106d4d6c5ea/crypto/pkcs7/pk7_lib.c#L625
This was found by a hybrid static-dynamic analyser that looks for inconsistent handling of error checks in bindings.