[jaenicke - Sun Nov 16 17:55:25 2003]: > [guest - Thu Oct 30 23:51:10 2003]: > > > > > Using the null cipher is causing us some problems with 0.9.7c. Not > sure > > how important this is but for one it causes at least one 0 byte > malloc > > that causes efence to barf: > > > > #0 0x4032d5f1 in kill () from /lib/libc.so.6 > > #1 0x40017eb6 in EF_Abort () from /usr/lib/libefence.so > > #2 0x4001741a in memalign () from /usr/lib/libefence.so > > #3 0x40017a6e in malloc () from /usr/lib/libefence.so > > #4 0x401d9910 in default_malloc_ex (num=0, file=0x402ab1e7 > "evp_enc.c", > > line=151) at mem.c:79 > > #5 0x401d9fcc in CRYPTO_malloc (num=0, file=0x402ab1e7 "evp_enc.c", > > line=151) > > at mem.c:304 > > #6 0x4022f48a in EVP_CipherInit_ex (ctx=0x4289af74, > cipher=0x402c1cc0, > > impl=0x0, key=0x427d1000 <Address 0x427d1000 out of bounds>, > > iv=0x427d1000 <Address 0x427d1000 out of bounds>, enc=1) at > > evp_enc.c:151 > > #7 0x40185ced in ssl3_change_cipher_state (s=0x42227ef4, which=18) > > at s3_enc.c:334 > > #8 0x4018089e in ssl3_connect (s=0x42227ef4) at s3_clnt.c:382 > > #9 0x401911b6 in SSL_do_handshake (s=0x42227ef4) at ssl_lib.c:1827 > > #10 0x4019c419 in ssl_ctrl (b=0x4226bfc0, cmd=101, num=0, ptr=0x0) > > at bio_ssl.c:417 > > #11 0x4021df70 in BIO_ctrl (b=0x4226bfc0, cmd=101, larg=0, parg=0x0) > > at bio_lib.c:324 > > Hmm. From some research it seems, that some UNIX implementations of > malloc() will return NULL on malloc(0) which indicates that we should > have a look into this issue!
One way to solve that would be for CRYPTO_malloc() to return NULL if it gets 0 as the size to allocate. Thoughts? -- Richard Levitte [EMAIL PROTECTED] ______________________________________________________________________ OpenSSL Project http://www.openssl.org Development Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]