From 4e7f6d380ded86f19dea9465ac296b1be4e2d180 Mon Sep 17 00:00:00 2001 From: "Dr. Stephen Henson" Date: Tue, 6 Mar 2012 13:20:20 +0000 Subject: PR: 2748 Submitted by: Robin Seggelmann Fix possible DTLS timer deadlock. --- crypto/engine/eng_cryptodev.c | 23 +++++++++++++++------ crypto/x509v3/v3_asid.c | 47 ++++++++++++++++++++++++++++++++++++------- 2 files changed, 57 insertions(+), 13 deletions(-) (limited to 'crypto') diff --git a/crypto/engine/eng_cryptodev.c b/crypto/engine/eng_cryptodev.c index eef1e2d814..09ef3292b5 100644 --- a/crypto/engine/eng_cryptodev.c +++ b/crypto/engine/eng_cryptodev.c @@ -186,6 +186,7 @@ get_dev_crypto(void) if ((fd = open_dev_crypto()) == -1) return (-1); +#ifndef CRIOGET_NOT_NEEDED if (ioctl(fd, CRIOGET, &retfd) == -1) return (-1); @@ -194,9 +195,19 @@ get_dev_crypto(void) close(retfd); return (-1); } +#else + retfd = fd; +#endif return (retfd); } +static void put_dev_crypto(int fd) +{ +#ifndef CRIOGET_NOT_NEEDED + close(fd); +#endif +} + /* Caching version for asym operations */ static int get_asym_dev_crypto(void) @@ -282,7 +293,7 @@ get_cryptodev_ciphers(const int **cnids) ioctl(fd, CIOCFSESSION, &sess.ses) != -1) nids[count++] = ciphers[i].nid; } - close(fd); + put_dev_crypto(fd); if (count > 0) *cnids = nids; @@ -319,7 +330,7 @@ get_cryptodev_digests(const int **cnids) ioctl(fd, CIOCFSESSION, &sess.ses) != -1) nids[count++] = digests[i].nid; } - close(fd); + put_dev_crypto(fd); if (count > 0) *cnids = nids; @@ -457,7 +468,7 @@ cryptodev_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, sess->cipher = cipher; if (ioctl(state->d_fd, CIOCGSESSION, sess) == -1) { - close(state->d_fd); + put_dev_crypto(state->d_fd); state->d_fd = -1; return (0); } @@ -494,7 +505,7 @@ cryptodev_cleanup(EVP_CIPHER_CTX *ctx) } else { ret = 1; } - close(state->d_fd); + put_dev_crypto(state->d_fd); state->d_fd = -1; return (ret); @@ -1084,11 +1095,11 @@ ENGINE_load_cryptodev(void) * find out what asymmetric crypto algorithms we support */ if (ioctl(fd, CIOCASYMFEAT, &cryptodev_asymfeat) == -1) { - close(fd); + put_dev_crypto(fd); ENGINE_free(engine); return; } - close(fd); + put_dev_crypto(fd); if (!ENGINE_set_id(engine, "cryptodev") || !ENGINE_set_name(engine, "BSD cryptodev engine") || diff --git a/crypto/x509v3/v3_asid.c b/crypto/x509v3/v3_asid.c index cff04a3558..d2011f18f9 100644 --- a/crypto/x509v3/v3_asid.c +++ b/crypto/x509v3/v3_asid.c @@ -358,6 +358,20 @@ static int ASIdentifierChoice_is_canonical(ASIdentifierChoice *choice) goto done; } + /* + * Check for inverted range. + */ + i = sk_ASIdOrRange_num(choice->u.asIdsOrRanges) - 1; + { + ASIdOrRange *a = sk_ASIdOrRange_value(choice->u.asIdsOrRanges, i); + ASN1_INTEGER *a_min, *a_max; + if (a != NULL && a->type == ASIdOrRange_range) { + extract_min_max(a, &a_min, &a_max); + if (ASN1_INTEGER_cmp(a_min, a_max) > 0) + goto done; + } + } + ret = 1; done: @@ -392,9 +406,18 @@ static int ASIdentifierChoice_canonize(ASIdentifierChoice *choice) return 1; /* - * We have a list. Sort it. + * If not a list, or if empty list, it's broken. + */ + if (choice->type != ASIdentifierChoice_asIdsOrRanges || + sk_ASIdOrRange_num(choice->u.asIdsOrRanges) == 0) { + X509V3err(X509V3_F_ASIDENTIFIERCHOICE_CANONIZE, + X509V3_R_EXTENSION_VALUE_ERROR); + return 0; + } + + /* + * We have a non-empty list. Sort it. */ - OPENSSL_assert(choice->type == ASIdentifierChoice_asIdsOrRanges); sk_ASIdOrRange_sort(choice->u.asIdsOrRanges); /* @@ -414,6 +437,13 @@ static int ASIdentifierChoice_canonize(ASIdentifierChoice *choice) */ OPENSSL_assert(ASN1_INTEGER_cmp(a_min, b_min) <= 0); + /* + * Punt inverted ranges. + */ + if (ASN1_INTEGER_cmp(a_min, a_max) > 0 || + ASN1_INTEGER_cmp(b_min, b_max) > 0) + goto done; + /* * Check for overlaps. */ @@ -498,6 +528,7 @@ static void *v2i_ASIdentifiers(struct v3_ext_method *method, struct v3_ext_ctx *ctx, STACK_OF(CONF_VALUE) *values) { + ASN1_INTEGER *min = NULL, *max = NULL; ASIdentifiers *asid = NULL; int i; @@ -508,7 +539,6 @@ static void *v2i_ASIdentifiers(struct v3_ext_method *method, for (i = 0; i < sk_CONF_VALUE_num(values); i++) { CONF_VALUE *val = sk_CONF_VALUE_value(values, i); - ASN1_INTEGER *min = NULL, *max = NULL; int i1, i2, i3, is_range, which; /* @@ -578,18 +608,19 @@ static void *v2i_ASIdentifiers(struct v3_ext_method *method, max = s2i_ASN1_INTEGER(NULL, s + i2); OPENSSL_free(s); if (min == NULL || max == NULL) { - ASN1_INTEGER_free(min); - ASN1_INTEGER_free(max); X509V3err(X509V3_F_V2I_ASIDENTIFIERS, ERR_R_MALLOC_FAILURE); goto err; } + if (ASN1_INTEGER_cmp(min, max) > 0) { + X509V3err(X509V3_F_V2I_ASIDENTIFIERS, X509V3_R_EXTENSION_VALUE_ERROR); + goto err; + } } if (!v3_asid_add_id_or_range(asid, which, min, max)) { - ASN1_INTEGER_free(min); - ASN1_INTEGER_free(max); X509V3err(X509V3_F_V2I_ASIDENTIFIERS, ERR_R_MALLOC_FAILURE); goto err; } + min = max = NULL; } /* @@ -601,6 +632,8 @@ static void *v2i_ASIdentifiers(struct v3_ext_method *method, err: ASIdentifiers_free(asid); + ASN1_INTEGER_free(min); + ASN1_INTEGER_free(max); return NULL; } -- cgit v1.2.3