[S] Change in osmocom-bb[master]: Fix potential NULL pointer dereferences, discovered by Coverity Scan

[laforge]

laforge has submitted this change. ( 
https://gerrit.osmocom.org/c/osmocom-bb/+/34608?usp=email )

Change subject: Fix potential NULL pointer dereferences, discovered by Coverity 
Scan
......................................................................

Fix potential NULL pointer dereferences, discovered by Coverity Scan

See: CID 323362 + CID 323363
Change-Id: I47aa506014d8bddb8c8ce9b506c1c5c7b8056d30
---
M src/host/layer23/src/mobile/gsm48_mm.c
1 file changed, 14 insertions(+), 0 deletions(-)

Approvals:
  Jenkins Builder: Verified
  fixeria: Looks good to me, approved




diff --git a/src/host/layer23/src/mobile/gsm48_mm.c 
b/src/host/layer23/src/mobile/gsm48_mm.c
index cec798b..810dfa7 100644
--- a/src/host/layer23/src/mobile/gsm48_mm.c
+++ b/src/host/layer23/src/mobile/gsm48_mm.c
@@ -3190,6 +3190,8 @@
                                             (msg_type & GSM48_MMXX_MASK),
                                             mmh->ref, mmh->transaction_id,
                                             sapi);
+               if (!nmsg)
+                       return -ENOMEM;
                nmmh = (struct gsm48_mmxx_hdr *)nmsg->data;
                nmmh->cause = cause;
                gsm48_mmxx_upmsg(ms, nmsg);
@@ -3410,6 +3412,8 @@
                                     (msg_type & GSM48_MMXX_MASK),
                                     mmh->ref, mmh->transaction_id,
                                     sapi);
+       if (!nmsg)
+               return -ENOMEM;
        nmmh = (struct gsm48_mmxx_hdr *)nmsg->data;
        nmmh->cause = 17;
        gsm48_mmxx_upmsg(ms, nmsg);

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Gerrit-Project: osmocom-bb
Gerrit-Branch: master
Gerrit-Change-Id: I47aa506014d8bddb8c8ce9b506c1c5c7b8056d30
Gerrit-Change-Number: 34608
Gerrit-PatchSet: 4
Gerrit-Owner: jolly <andr...@eversberg.eu>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanits...@sysmocom.de>
Gerrit-Reviewer: laforge <lafo...@osmocom.org>
Gerrit-Reviewer: pespin <pes...@sysmocom.de>
Gerrit-MessageType: merged