Seeing intermittent crash for TLSv1.3

[Rahul Shukla]

Hi All,
I'm experiencing an intermittent crash with TLSv1.3. Despite my efforts to
analyze it using Valgrind or Purify, I'm unable to replicate the issue.
Does anyone have any insights into this??


#0  0x0000724208ea1743 in unlink_chunk (p=p at entry=0x7241ec4c9550,
av=0x7241ec000030) at ./malloc/malloc.c:1634
#1  0x0000724208ea462b in _int_malloc (av=av at entry=0x7241ec000030,
bytes=bytes at entry=80) at ./malloc/malloc.c:4307
#2  0x0000724208ea5139 in __GI___libc_malloc (bytes=80) at
./malloc/malloc.c:3329
#3  0x00005a11a31f06ce in CRYPTO_zalloc ()
#4  0x00005a11a318d321 in bn_expand2 ()
#5  0x00005a11a318feab in BN_lshift1 ()
#6  0x00005a11a32e0481 in BN_mod_lshift1_quick ()
#7  0x00005a11a31b5f35 in ossl_ec_GFp_simple_ladder_step ()
#8  0x00005a11a31ad34d in ossl_ec_scalar_mul_ladder ()
#9  0x00005a11a31addf1 in ossl_ec_wNAF_mul ()
#10 0x00005a11a31abc3d in EC_POINT_mul ()
#11 0x00005a11a31a8d7f in ossl_ec_key_simple_generate_key ()
#12 0x00005a11a31a8061 in ossl_ec_key_gen ()
#13 0x00005a11a31a7fce in EC_KEY_generate_key ()
#14 0x00005a11a3297b38 in ec_gen ()
#15 0x00005a11a31d6c2b in evp_keymgmt_util_gen ()
#16 0x00005a11a31e2aa7 in EVP_PKEY_generate ()
#17 0x00005a11a311a317 in ssl_generate_pkey_group ()
#18 0x00005a11a31462bc in tls_construct_ctos_key_share ()
#19 0x00005a11a31443c3 in tls_construct_extensions ()
#20 0x00005a11a314f92d in tls_construct_client_hello ()
#21 0x00005a11a314e667 in state_machine ()
#22 0x00005a11a3125184 in SSL_do_handshake ()
.....


TIA.

-Rahul
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