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author | Bernd Edlinger <bernd.edlinger@hotmail.de> | 2022-05-21 07:50:46 +0200 |
---|---|---|
committer | Bernd Edlinger <bernd.edlinger@hotmail.de> | 2022-05-25 13:05:21 +0200 |
commit | 046b0d7ad96d754cf39691fd3f1db01a9ee2dc7d (patch) | |
tree | dcdc44b1ef123bcdc7bfbffbb5e1a1ffe5acccd6 /crypto | |
parent | 71544090df4fe34f1ebd182e4e77c8b26568dbfe (diff) |
Fix a memory leak in crl_set_issuers
This can be reproduced with my error injection patch.
The test vector has been validated on the 1.1.1 branch
but the issue is of course identical in all branches.
$ ERROR_INJECT=1653520461 ../util/shlib_wrap.sh ./cms-test ./corpora/cms/3eff1d2f1232bd66d5635db2c3f9e7f23830dfd1
log file: cms-3eff1d2f1232bd66d5635db2c3f9e7f23830dfd1-32454-test.out
ERROR_INJECT=1653520461
#0 0x7fd5d8b8eeba in __sanitizer_print_stack_trace ../../../../gcc-trunk/libsanitizer/asan/asan_stack.cpp:87
#1 0x402fc4 in my_realloc fuzz/test-corpus.c:129
#2 0x7fd5d8893c49 in sk_reserve crypto/stack/stack.c:198
#3 0x7fd5d8893c49 in OPENSSL_sk_insert crypto/stack/stack.c:242
#4 0x7fd5d88d6d7f in sk_GENERAL_NAMES_push include/openssl/x509v3.h:168
#5 0x7fd5d88d6d7f in crl_set_issuers crypto/x509/x_crl.c:111
#6 0x7fd5d88d6d7f in crl_cb crypto/x509/x_crl.c:246
#7 0x7fd5d85dc032 in asn1_item_embed_d2i crypto/asn1/tasn_dec.c:432
#8 0x7fd5d85dcaf5 in asn1_template_noexp_d2i crypto/asn1/tasn_dec.c:643
#9 0x7fd5d85dd288 in asn1_template_ex_d2i crypto/asn1/tasn_dec.c:518
#10 0x7fd5d85db2b5 in asn1_item_embed_d2i crypto/asn1/tasn_dec.c:259
#11 0x7fd5d85dc813 in asn1_template_noexp_d2i crypto/asn1/tasn_dec.c:611
#12 0x7fd5d85dd288 in asn1_template_ex_d2i crypto/asn1/tasn_dec.c:518
#13 0x7fd5d85db9ce in asn1_item_embed_d2i crypto/asn1/tasn_dec.c:382
#14 0x7fd5d85dca28 in asn1_template_noexp_d2i crypto/asn1/tasn_dec.c:633
#15 0x7fd5d85dd288 in asn1_template_ex_d2i crypto/asn1/tasn_dec.c:518
#16 0x7fd5d85db9ce in asn1_item_embed_d2i crypto/asn1/tasn_dec.c:382
#17 0x7fd5d85dcaf5 in asn1_template_noexp_d2i crypto/asn1/tasn_dec.c:643
#18 0x7fd5d85dd7d3 in asn1_template_ex_d2i crypto/asn1/tasn_dec.c:494
#19 0x7fd5d85db9ce in asn1_item_embed_d2i crypto/asn1/tasn_dec.c:382
#20 0x7fd5d85ddd1f in ASN1_item_ex_d2i crypto/asn1/tasn_dec.c:124
#21 0x7fd5d85dde35 in ASN1_item_d2i crypto/asn1/tasn_dec.c:114
#22 0x7fd5d85a77e0 in ASN1_item_d2i_bio crypto/asn1/a_d2i_fp.c:69
#23 0x402845 in FuzzerTestOneInput fuzz/cms.c:43
#24 0x402bbb in testfile fuzz/test-corpus.c:182
#25 0x402626 in main fuzz/test-corpus.c:226
#26 0x7fd5d7c81f44 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21f44)
#27 0x402706 (/home/ed/OPC/openssl/fuzz/cms-test+0x402706)
=================================================================
==29625==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 32 byte(s) in 1 object(s) allocated from:
#0 0x7fd5d8b8309f in __interceptor_malloc ../../../../gcc-trunk/libsanitizer/asan/asan_malloc_linux.cpp:69
#1 0x7fd5d87c2430 in CRYPTO_zalloc crypto/mem.c:230
#2 0x7fd5d889501f in OPENSSL_sk_new_reserve crypto/stack/stack.c:209
#3 0x7fd5d85dcbc3 in sk_ASN1_VALUE_new_null include/openssl/asn1t.h:928
#4 0x7fd5d85dcbc3 in asn1_template_noexp_d2i crypto/asn1/tasn_dec.c:577
#5 0x7fd5d85dd288 in asn1_template_ex_d2i crypto/asn1/tasn_dec.c:518
#6 0x7fd5d85db104 in asn1_item_embed_d2i crypto/asn1/tasn_dec.c:178
#7 0x7fd5d85ddd1f in ASN1_item_ex_d2i crypto/asn1/tasn_dec.c:124
#8 0x7fd5d85dde35 in ASN1_item_d2i crypto/asn1/tasn_dec.c:114
#9 0x7fd5d88f86d9 in X509V3_EXT_d2i crypto/x509v3/v3_lib.c:142
#10 0x7fd5d88d6d3c in crl_set_issuers crypto/x509/x_crl.c:97
#11 0x7fd5d88d6d3c in crl_cb crypto/x509/x_crl.c:246
#12 0x7fd5d85dc032 in asn1_item_embed_d2i crypto/asn1/tasn_dec.c:432
#13 0x7fd5d85dcaf5 in asn1_template_noexp_d2i crypto/asn1/tasn_dec.c:643
#14 0x7fd5d85dd288 in asn1_template_ex_d2i crypto/asn1/tasn_dec.c:518
#15 0x7fd5d85db2b5 in asn1_item_embed_d2i crypto/asn1/tasn_dec.c:259
#16 0x7fd5d85dc813 in asn1_template_noexp_d2i crypto/asn1/tasn_dec.c:611
#17 0x7fd5d85dd288 in asn1_template_ex_d2i crypto/asn1/tasn_dec.c:518
#18 0x7fd5d85db9ce in asn1_item_embed_d2i crypto/asn1/tasn_dec.c:382
#19 0x7fd5d85dca28 in asn1_template_noexp_d2i crypto/asn1/tasn_dec.c:633
#20 0x7fd5d85dd288 in asn1_template_ex_d2i crypto/asn1/tasn_dec.c:518
#21 0x7fd5d85db9ce in asn1_item_embed_d2i crypto/asn1/tasn_dec.c:382
#22 0x7fd5d85dcaf5 in asn1_template_noexp_d2i crypto/asn1/tasn_dec.c:643
#23 0x7fd5d85dd7d3 in asn1_template_ex_d2i crypto/asn1/tasn_dec.c:494
#24 0x7fd5d85db9ce in asn1_item_embed_d2i crypto/asn1/tasn_dec.c:382
#25 0x7fd5d85ddd1f in ASN1_item_ex_d2i crypto/asn1/tasn_dec.c:124
#26 0x7fd5d85dde35 in ASN1_item_d2i crypto/asn1/tasn_dec.c:114
#27 0x7fd5d85a77e0 in ASN1_item_d2i_bio crypto/asn1/a_d2i_fp.c:69
#28 0x402845 in FuzzerTestOneInput fuzz/cms.c:43
#29 0x402bbb in testfile fuzz/test-corpus.c:182
#30 0x402626 in main fuzz/test-corpus.c:226
#31 0x7fd5d7c81f44 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21f44)
SUMMARY: AddressSanitizer: 32 byte(s) leaked in 1 allocation(s).
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18391)
(cherry picked from commit e9007e09792e3735d4973743634ff55d354fc7d8)
Diffstat (limited to 'crypto')
-rw-r--r-- | crypto/x509/x_crl.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/crypto/x509/x_crl.c b/crypto/x509/x_crl.c index d0756fca8c..3e358a4096 100644 --- a/crypto/x509/x_crl.c +++ b/crypto/x509/x_crl.c @@ -103,13 +103,17 @@ static int crl_set_issuers(X509_CRL *crl) if (gtmp) { gens = gtmp; - if (!crl->issuers) { + if (crl->issuers == NULL) { crl->issuers = sk_GENERAL_NAMES_new_null(); - if (!crl->issuers) + if (crl->issuers == NULL) { + GENERAL_NAMES_free(gtmp); return 0; + } } - if (!sk_GENERAL_NAMES_push(crl->issuers, gtmp)) + if (!sk_GENERAL_NAMES_push(crl->issuers, gtmp)) { + GENERAL_NAMES_free(gtmp); return 0; + } } rev->issuer = gens; |