8000 Segfault when telegrams are received · Issue #579 · knxd/knxd · GitHub
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Segfault when telegrams are received #579
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@watchdogtheone

Description

@watchdogtheone

Hello there,

it is simple. I have set a small test with a TUL module.
Everytime i receive knx telegrams, knxd segfault.

Am i doing something wrong ? Because... even if KNX devices send wrong data, KNXD is not supposed to segfault right ?

Best regards

`
Layer 0 [16:A.tpuarts/log 67.177] Known Addr 30/3/250: yes
Layer 0 [15:A.tpuarts/LowF 67.177] SendAck 11
Layer 0 [18:A.tpuarts/log 67.177] Send(001): 11
Layer 1 [15:A.tpuarts/LowF 67.177] RecvLP(015): 98 02 01 F3 FA E7 00 80 00 03 00 00 00 00 09
Layer 0 [16:A.tpuarts/log 67.177] Recv L_Data (repeated) normal from 0.2.1 to 30/3/250 hops: 06 T_Data_Group A_GroupValue_Write 00 03 00 00 00 00
Layer 8 [13:A.tpuarts/Conn 67.177] found addr 0.2.1
Layer 8 [15:A.tpuarts/LowF 67.177] state: wait_more > wait
Layer 8 [15:A.tpuarts/LowF 67.177] state: wait > wait_more
Layer 0 [16:A.tpuarts/log 67.177] Known Addr 30/3/250: yes
Layer 0 [15:A.tpuarts/LowF 67.177] SendAck 11
Layer 0 [18:A.tpuarts/log 67.177] Send(001): 11
Layer 1 [15:A.tpuarts/LowF 67.177] RecvLP(015): 98 02 01 F3 FA E7 00 80 00 03 00 00 00 00 09
Layer 0 [16:A.tpuarts/log 67.177] Recv L_Data (repeated) normal from 0.2.1 to 30/3/250 hops: 06 T_Data_Group A_GroupValue_Write 00 03 00 00 00 00
Layer 8 [13:A.tpuarts/Conn 67.177] found addr 0.2.1
Layer 8 [15:A.tpuarts/LowF 67.177] state: wait_more > wait
Layer 8 [15:A.tpuarts/LowF 67.177] state: wait > wait_more
Layer 0 [16:A.tpuarts/log 67.177] Known Addr 30/3/250: yes
Layer 0 [15:A.tpuarts/LowF 67.178] SendAck 11
Layer 0 [18:A.tpuarts/log 67.178] Send(001): 11
Layer 1 [15:A.tpuarts/LowF 67.178] RecvLP(015): 98 02 01 F3 FA E7 00 80 00 03 00 00 00 00 09
Layer 0 [16:A.tpuarts/log 67.178] Recv L_Data (repeated) normal from 0.2.1 to 30/3/250 hops: 06 T_Data_Group A_GroupValue_Write 00 03 00 00 00 00
Layer 8 [13:A.tpuarts/Conn 67.178] found addr 0.2.1
Layer 8 [15:A.tpuarts/LowF 67.178] state: wait_more > wait
Layer 6 [34:router/ConnC 67.178] sending, send_more clear
Layer 1 [ 6:server/Server 67.178] Send(017): 29 00 B8 D0 02 01 F3 FA 07 00 80 00 03 00 00 00 00
Layer 2 [36:router.pace_/router 67.178] out 1/8: delay for 0.023 sec
Layer 6 [31:router/ConnC 67.178] sending, send_more clear
Layer 1 [20:server/Server 67.178] Send(017): 29 00 B8 D0 02 01 F3 FA 07 00 80 00 03 00 00 00 00
Layer 2 [33:router.pace_/router 67.178] out 1/8: delay for 0.023 sec
Layer 6 [ 4:B.cache/Conn 67.178] sending, send_more clear
Layer 6 [ 4:B.cache/Conn 67.178] sendNext called, send_more set
Layer 6 [ 1:main 67.178] sending set
Layer 6 [34:router/ConnC 67.178] still waiting
Layer 6 [ 1:main 67.178] wait L
Layer 0 [20:server/Server 67.178] Send(023): 06 10 05 30 00 17 29 00 B8 D0 02 01 F3 FA 07 00 80 00 03 00 00 00 00
Layer 0 [ 6:server/Server 67.178] Send(023): 06 10 05 30 00 17 29 00 B8 D0 02 01 F3 FA 07 00 80 00 03 00 00 00 00
Layer 0 [20:server/Server 67.178] Dropped(023): 06 10 05 30 00 17 29 00 B8 D0 02 01 F3 FA 07 00 80 00 03 00 00 00 00
Layer 0 [ 6:server/Server 67.178] Dropped(023): 06 10 05 30 00 17 29 00 B8 D0 02 01 F3 FA 07 00 80 00 03 00 00 00 00
Layer 0 [20:server/Server 67.178] Dropped(023): 06 10 05 30 00 17 29 00 B8 D0 02 01 F3 FA 07 00 80 00 03 00 00 00 00
Layer 0 [ 6:server/Server 67.178] Dropped(023): 06 10 05 30 00 17 29 00 B8 D0 02 01 F3 FA 07 00 80 00 03 00 00 00 00
Layer 2 [36:router.pace_/router 67.201] delay done
Layer 6 [34:router/ConnC 67.201] sendNext called, send_more set
Layer 6 [34:router/ConnC 67.201] is OK
Layer 6 [31:router/ConnC 67.201] still waiting
Layer 2 [33:router.pace_/router 67.201] delay done
Layer 6 [31:router/ConnC 67.201] sendNext called, send_more set
Layer 6 [34:router/ConnC 67.201] is OK
Layer 6 [31:router/ConnC 67.201] is OK
Layer 6 [27:C.tcp/inet 67.201] is OK
Layer 6 [20:server/Server 67.201] is OK
Layer 6 [13:A.tpuarts/Conn 67.201] is OK
Layer 6 [ 6:server/Server 67.201] is OK
Layer 6 [ 4:B.cache/Conn 67.201] is OK
Layer 6 [ 1:main 67.201] OK
Layer 6 [ 2:main/L 67.201] OK L
Layer 9 [ 1:main 67.201] Drop: L_Data (repeated) normal from 0.2.1 to 30/3/250 hops: 05 T_Data_Group A_GroupValue_Write 00 03 00 00 00 00
Layer 9 [ 1:main 67.201] Drop: L_Data (repeated) normal from 0.2.1 to 30/3/250 hops: 05 T_Data_Group A_GroupValue_Write 00 03 00 00 00 00
Layer 9 [ 1:main 67.201] Drop: L_Data (repeated) normal from 0.2.1 to 30/3/250 hops: 05 T_Data_Group A_GroupValue_Write 00 03 00 00 00 00

Layer 0 [18:A.tpuarts/log 70.178] Recv(030): 34 E7 02 01 00 00 15 07 EB 03 EA 01 FF 00 FD FE 00 00 00 00 00 00 00 00 00 00 00 03 00 C1
Layer 8 [15:A.tpuarts/LowF 70.178] state: wait > wait_more
Layer 0 [16:A.tpuarts/log 70.178] Known Addr 0/0/0: yes
Layer 0 [15:A.tpuarts/LowF 70.178] SendAck 11
Layer 0 [18:A.tpuarts/log 70.178] Send(001): 11
Layer 1 [15:A.tpuarts/LowF 70.178] RecvLP(030): 34 E7 02 01 00 00 15 07 EB 03 EA 01 FF 00 FD FE 00 00 00 00 00 00 00 00 00 00 00 03 00 C1
Segmentation fault
`

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