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Merge pull request #863 from davidhorstmann-arm/2.x-fix-session-copy-bug

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Backport 2.x: [session] fix a session copy bug
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Manuel Pégourié-Gonnard 2021-12-09 09:21:33 +01:00 committed by GitHub
parent 9a4a9c66a4 0add7f96ac
commit 9ac32eb123
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2 changed files with 10 additions and 0 deletions
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6
ChangeLog.d/fix-session-copy-bug.txt Normal file
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@ -0,0 +1,6 @@
Bugfix
* Fix a double-free that happened after mbedtls_ssl_set_session() or
mbedtls_ssl_get_session() failed with MBEDTLS_ERR_SSL_ALLOC_FAILED
(out of memory). After that, calling mbedtls_ssl_session_free()
and mbedtls_ssl_free() would cause an internal session buffer to
be free()'d twice.

4
library/ssl_tls.c
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@ -188,6 +188,10 @@ int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst,
mbedtls_ssl_session_free( dst );
memcpy( dst, src, sizeof( mbedtls_ssl_session ) );
#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
dst->ticket = NULL;
#endif
#if defined(MBEDTLS_X509_CRT_PARSE_C)
#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)