UDM crash on initial UE message, Registration Request about free5gc HOT 7 CLOSED

free5gc commented on May 18, 2024

UDM crash on initial UE message, Registration Request

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Comments (7)

anhtrung87vn commented on May 18, 2024

Hello I tried to connect free5GS to a virtual gNB and UE, upon first message from UE the AMF crashes.

Hi bjoern-r,

Could you please let me know which virtual gNB and UE you are using?
Thanks,
Trung

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bjoern-r commented on May 18, 2024

Hi Trung,

for now i'm not allowed to tell you, but it is part of a closed/shared source 5g core network product from my employer.

Cheers
Bjoern

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anhtrung87vn commented on May 18, 2024

Thank Bjoern

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bjoern-r commented on May 18, 2024

same happens with real gNB and UE

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anhtrung87vn commented on May 18, 2024

Hi bjoern-r,

Could you please let me know which real gNB you are using? I would like to purchase one to do a test with 5G core.

Thanks,
Trung.

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free5gc-org commented on May 18, 2024

hi @bjoern-r ,

Do you try the latest version of free5gc? We through we have fix this problem.

Or may you provide your pcap file of initial ue message and your SUPI/SUCI.

Thanks

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bjoern-r commented on May 18, 2024

Hi,
now the AMF is not crashing anymore.
However now the udm is failing:

INFO[2020-04-21T21:18:55+02:00]/home/o5gc/go/src/free5gc/src/udm/udm_producer/generate_auth_data.go:34 free5gc/src/udm/udm_producer.HandleGenerateAuthData() supi conversion => imsi-001012342013333       UDM=UEAU
https://127.0.0.1:29510
panic: runtime error: index out of range

goroutine 14 [running]:
free5gc/lib/milenage.milenageF1(0xc0006674a8, 0x0, 0x20, 0xc0006674e8, 0x10, 0x20, 0xc0006673c8, 0x10, 0x10, 0xc000667488, ...)
        /home/release3/gofree5gc/release/src/free5gc/lib/milenage/milenage.go:57 +0x3fb
free5gc/lib/milenage.F1_Test(...)
        /home/release3/gofree5gc/release/src/free5gc/lib/milenage/milenage.go:574
free5gc/src/udm/udm_producer.HandleGenerateAuthData(0xc000086480, 0xc00008636e, 0x21, 0x0, 0x0, 0xc00063c580, 0x20, 0x0, 0xc00002a210, 0x24)
        /home/o5gc/go/src/free5gc/src/udm/udm_producer/generate_auth_data.go:115 +0x757
free5gc/src/udm/udm_handler.Handle()
        /home/o5gc/go/src/free5gc/src/udm/udm_handler/handler.go:39 +0x5f4
created by free5gc/src/udm/udm_service.(*UDM).Start
        /home/o5gc/go/src/free5gc/src/udm/udm_service/udm_init.go:146 +0x57b

For my USIM card i need to specify the SQN value but this is not possible in the webgui.
How do i add the SQN value to the udm?

Cheers
Bjoern

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