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Harald Welte gerrit-no-reply at lists.osmocom.org
Review at https://gerrit.osmocom.org/4686
trx: Don't call osmo_fr_check_sid with negative 'rc'
In rx_tchf_fn(), if gsm0503_tch_fr_decode() returns a negative
result, we cannot use that result as length argument to
osmo_fr_check_sid()
Change-Id: Ic4080b5bf6c865be3333f923f19a2340e1e272c8
Fixes: Coverity CID#178659
---
M src/osmo-bts-trx/scheduler_trx.c
1 file changed, 2 insertions(+), 1 deletion(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/86/4686/1
diff --git a/src/osmo-bts-trx/scheduler_trx.c b/src/osmo-bts-trx/scheduler_trx.c
index 967e3db..c849dd5 100644
--- a/src/osmo-bts-trx/scheduler_trx.c
+++ b/src/osmo-bts-trx/scheduler_trx.c
@@ -1055,7 +1055,8 @@
: tch_mode) {
case GSM48_CMODE_SPEECH_V1: /* FR */
rc = gsm0503_tch_fr_decode(tch_data, *bursts_p, 1, 0, &n_errors, &n_bits_total);
- lchan_set_marker(osmo_fr_check_sid(tch_data, rc), lchan); /* DTXu */
+ if (rc >= 0)
+ lchan_set_marker(osmo_fr_check_sid(tch_data, rc), lchan); /* DTXu */
break;
case GSM48_CMODE_SPEECH_EFR: /* EFR */
rc = gsm0503_tch_fr_decode(tch_data, *bursts_p, 1, 1, &n_errors, &n_bits_total);
--
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ic4080b5bf6c865be3333f923f19a2340e1e272c8
Gerrit-PatchSet: 1
Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Owner: Harald Welte <laforge at gnumonks.org>