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output-json-email: fix memleak

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This patch fixes some error handling in code generating JSON output for
email event.

This fixes:

Indirect leak of 128 byte(s) in 1 object(s) allocated from:
    #0 0x50c142 in malloc (/home/eric/git/oisf/src/.libs/lt-suricata+0x50c142)
    #1 0x7ff92394771c  (/usr/lib/x86_64-linux-gnu/libjansson.so.4+0x371c)
    #2 0x1bd3309 in JsonEmailLogJson /home/eric/git/oisf/src/output-json-email-common.c:376:19
    #3 0x1bfe774 in JsonSmtpLogger /home/eric/git/oisf/src/output-json-smtp.c:103:9
    #4 0x1c378ff in OutputTxLog /home/eric/git/oisf/src/output-tx.c:165:17
    #5 0x1f94ef3 in TmThreadsSlotVarRun /home/eric/git/oisf/src/tm-threads.c:134:17
    #6 0x1d33478 in TmThreadsSlotProcessPkt /home/eric/git/oisf/src/./tm-threads.h:150:9
    #7 0x1d32dd4 in PcapFileCallbackLoop /home/eric/git/oisf/src/source-pcap-file.c:184:9
    #8 0x7ff924199013  (/usr/lib/x86_64-linux-gnu/libpcap.so.0.8+0x1f013)

Indirect leak of 96 byte(s) in 3 object(s) allocated from:
    #0 0x50c142 in malloc (/home/eric/git/oisf/src/.libs/lt-suricata+0x50c142)
    #1 0x7ff92394bc7b  (/usr/lib/x86_64-linux-gnu/libjansson.so.4+0x7c7b)

Indirect leak of 82 byte(s) in 3 object(s) allocated from:
    #0 0x50c142 in malloc (/home/eric/git/oisf/src/.libs/lt-suricata+0x50c142)
    #1 0x7ff923949924  (/usr/lib/x86_64-linux-gnu/libjansson.so.4+0x5924)

Indirect leak of 72 byte(s) in 1 object(s) allocated from:
    #0 0x50c142 in malloc (/home/eric/git/oisf/src/.libs/lt-suricata+0x50c142)
    #1 0x7ff92394bcda in json_object (/usr/lib/x86_64-linux-gnu/libjansson.so.4+0x7cda)
    #2 0x1bd3309 in JsonEmailLogJson /home/eric/git/oisf/src/output-json-email-common.c:376:19
    #3 0x1bfe774 in JsonSmtpLogger /home/eric/git/oisf/src/output-json-smtp.c:103:9
    #4 0x1c378ff in OutputTxLog /home/eric/git/oisf/src/output-tx.c:165:17
    #5 0x1f94ef3 in TmThreadsSlotVarRun /home/eric/git/oisf/src/tm-threads.c:134:17
    #6 0x1d33478 in TmThreadsSlotProcessPkt /home/eric/git/oisf/src/./tm-threads.h:150:9
    #7 0x1d32dd4 in PcapFileCallbackLoop /home/eric/git/oisf/src/source-pcap-file.c:184:9
    #8 0x7ff924199013  (/usr/lib/x86_64-linux-gnu/libpcap.so.0.8+0x1f013)

Indirect leak of 64 byte(s) in 1 object(s) allocated from:
    #0 0x50c142 in malloc (/home/eric/git/oisf/src/.libs/lt-suricata+0x50c142)
    #1 0x7ff92394bf5a in json_array (/usr/lib/x86_64-linux-gnu/libjansson.so.4+0x7f5a)
    #2 0x1bd04b5 in JsonEmailLogJsonData /home/eric/git/oisf/src/output-json-email-common.c:296:27
    #3 0x1bd3309 in JsonEmailLogJson /home/eric/git/oisf/src/output-json-email-common.c:376:19
    #4 0x1bfe774 in JsonSmtpLogger /home/eric/git/oisf/src/output-json-smtp.c:103:9
    #5 0x1c378ff in OutputTxLog /home/eric/git/oisf/src/output-tx.c:165:17
    #6 0x1f94ef3 in TmThreadsSlotVarRun /home/eric/git/oisf/src/tm-threads.c:134:17
    #7 0x1d33478 in TmThreadsSlotProcessPkt /home/eric/git/oisf/src/./tm-threads.h:150:9
    #8 0x1d32dd4 in PcapFileCallbackLoop /home/eric/git/oisf/src/source-pcap-file.c:184:9
    #9 0x7ff924199013  (/usr/lib/x86_64-linux-gnu/libpcap.so.0.8+0x1f013)

Indirect leak of 48 byte(s) in 1 object(s) allocated from:
    #0 0x50c142 in malloc (/home/eric/git/oisf/src/.libs/lt-suricata+0x50c142)
    #1 0x7ff92394bf2a in json_array (/usr/lib/x86_64-linux-gnu/libjansson.so.4+0x7f2a)
    #2 0x1bd04b5 in JsonEmailLogJsonData /home/eric/git/oisf/src/output-json-email-common.c:296:27
    #3 0x1bd3309 in JsonEmailLogJson /home/eric/git/oisf/src/output-json-email-common.c:376:19
    #4 0x1bfe774 in JsonSmtpLogger /home/eric/git/oisf/src/output-json-smtp.c:103:9
    #5 0x1c378ff in OutputTxLog /home/eric/git/oisf/src/output-tx.c:165:17
    #6 0x1f94ef3 in TmThreadsSlotVarRun /home/eric/git/oisf/src/tm-threads.c:134:17
    #7 0x1d33478 in TmThreadsSlotProcessPkt /home/eric/git/oisf/src/./tm-threads.h:150:9
    #8 0x1d32dd4 in PcapFileCallbackLoop /home/eric/git/oisf/src/source-pcap-file.c:184:9
    #9 0x7ff924199013  (/usr/lib/x86_64-linux-gnu/libpcap.so.0.8+0x1f013)
pull/1954/head
Eric Leblond 9 years ago committed by Victor Julien
parent a05cdbdf28
commit 1b1cde6837
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File

6
src/output-json-email-common.c
Unescape Escape View File

@ -253,6 +253,7 @@ json_t *JsonEmailLogJsonData(const Flow *f, void *state, void *vtx, uint64_t tx_
smtp_state = (SMTPState *)state; smtp_state = (SMTPState *)state;
if (smtp_state == NULL) { if (smtp_state == NULL) {
SCLogDebug("no smtp state, so no request logging"); SCLogDebug("no smtp state, so no request logging");
json_decref(sjs);
SCReturnPtr(NULL, "json_t"); SCReturnPtr(NULL, "json_t");
} }
SMTPTransaction *tx = vtx; SMTPTransaction *tx = vtx;
@ -262,6 +263,7 @@ json_t *JsonEmailLogJsonData(const Flow *f, void *state, void *vtx, uint64_t tx_
break; break;
default: default:
/* don't know how we got here */ /* don't know how we got here */
json_decref(sjs);
SCReturnPtr(NULL, "json_t"); SCReturnPtr(NULL, "json_t");
} }
if ((mime_state != NULL)) { if ((mime_state != NULL)) {
@ -306,8 +308,10 @@ json_t *JsonEmailLogJsonData(const Flow *f, void *state, void *vtx, uint64_t tx_
} }
} }
if (mime_state->stack == NULL || mime_state->stack->top == NULL || mime_state->stack->top->data == NULL) if (mime_state->stack == NULL || mime_state->stack->top == NULL || mime_state->stack->top->data == NULL) {
json_decref(sjs);
SCReturnPtr(NULL, "json_t"); SCReturnPtr(NULL, "json_t");
}
entity = (MimeDecEntity *)mime_state->stack->top->data; entity = (MimeDecEntity *)mime_state->stack->top->data;
int attch_cnt = 0; int attch_cnt = 0;

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