pespin has submitted this change. ( https://gerrit.osmocom.org/c/osmo-sgsn/+/32578 )

Change subject: gprs_sm.c: Fix load of misaligned ptr address ......................................................................

gprs_sm.c: Fix load of misaligned ptr address

Got this Asan runtime error in osmo-sgsn while implementing the MS side of SM: """ DMM gprs_sm.c:427 MM(901700000015254/c655d609) -> ACTIVATE PDP CONTEXT REQ: SAPI=3 NSAPI=6 IETF IPv4 /osmo-sgsn/src/sgsn/gprs_sm.c:453:16: runtime error: load of misaligned address 0x61f000064ba3 for type 'uint32_t', which requires 4 byte alignment 0x61f000064ba3: note: pointer points here 00 06 01 21 00 00 00 00 28 09 27 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ """

Change-Id: I8069e3457120b22bb6514fd5d192bff486d7d87f --- M src/sgsn/gprs_sm.c 1 file changed, 18 insertions(+), 1 deletion(-)

Approvals: Jenkins Builder: Verified daniel: Looks good to me, but someone else must approve lynxis lazus: Looks good to me, approved

diff --git a/src/sgsn/gprs_sm.c b/src/sgsn/gprs_sm.c index 1194f31..88d1feb 100644 --- a/src/sgsn/gprs_sm.c +++ b/src/sgsn/gprs_sm.c @@ -450,7 +450,7 @@ DEBUGPC(DMM, "IPv4 "); if (req_pdpa_len >= 6) { struct in_addr ia; - ia.s_addr = ntohl(*((uint32_t *) (req_pdpa+2))); + ia.s_addr = osmo_load32be(req_pdpa+2); DEBUGPC(DMM, "%s ", inet_ntop(AF_INET, &ia, buf, sizeof(buf))); } break;