[Bug 1449012] [NEW] SIGSEGV in nl_attr_get_size

[James Page]

Public bug reported:

#0  0x000000000047b42e in nl_attr_get_size (nla=0x0) at ../lib/netlink.c:506
#1  0x0000000000481e32 in format_generic_odp_key (a=0x0, ds=0x7fffd70e83d0) at ../lib/odp-util.c:767
#2  0x0000000000482556 in format_odp_key_attr (a=0x21ac248, ma=0x0, ds=0x7fffd70e83d0, verbose=true) at ../lib/odp-util.c:973
#3  0x0000000000484e89 in odp_flow_format (key=0x21ac200, key_len=80, mask=0x0, mask_len=0, ds=0x7fffd70e83d0, verbose=true) at ../lib/odp-util.c:1402
#4  0x000000000045d740 in log_flow_message (dpif=0x202ef60, error=2, operation=0x51f463 "flow_del", key=0x21ac200, key_len=80, mask=0x0, mask_len=0, stats=0x0, actions=0x0, 
    actions_len=0) at ../lib/dpif.c:1354
#5  0x000000000045d9a6 in log_flow_del_message (dpif=0x202ef60, del=0x7fffd70e84b0, error=2) at ../lib/dpif.c:1397
#6  0x000000000045cad7 in dpif_flow_del__ (dpif=0x202ef60, del=0x7fffd70e84b0) at ../lib/dpif.c:945
#7  0x000000000045cb1f in dpif_flow_del (dpif=0x202ef60, key=0x21ac200, key_len=80, stats=0x7fffd70e8500) at ../lib/dpif.c:965
#8  0x000000000042b321 in subfacet_uninstall (subfacet=0x1fc7e20) at ../ofproto/ofproto-dpif.c:4686
#9  0x00000000004296ea in facet_remove (facet=0x1fc7a20) at ../ofproto/ofproto-dpif.c:4014
#10 0x000000000042a2e2 in facet_revalidate (facet=0x1fc7a20) at ../ofproto/ofproto-dpif.c:4321
#11 0x0000000000429e08 in facet_lookup_valid (ofproto=0x2041e60, flow=0x7fc588000c68) at ../ofproto/ofproto-dpif.c:4203
#12 0x0000000000427d73 in handle_flow_miss (miss=0x7fc588000c50, ops=0x7fffd70e8c40, n_ops=0x7fffd70e8a90) at ../ofproto/ofproto-dpif.c:3339
#13 0x000000000042805d in handle_flow_misses (backer=0x203a780, fmb=0x7fc5880008e0) at ../ofproto/ofproto-dpif.c:3410
#14 0x0000000000428785 in handle_upcalls (backer=0x203a780) at ../ofproto/ofproto-dpif.c:3565
#15 0x0000000000421f6a in dpif_backer_run_fast (backer=0x203a780) at ../ofproto/ofproto-dpif.c:1007
#16 0x0000000000421fac in type_run_fast (type=0x20dabb0 "system") at ../ofproto/ofproto-dpif.c:1024
#17 0x0000000000414a9b in ofproto_type_run_fast (datapath_type=0x20dabb0 "system") at ../ofproto/ofproto.c:1326
#18 0x000000000040af0e in bridge_run_fast () at ../vswitchd/bridge.c:2318
#19 0x0000000000410304 in main (argc=11, argv=0x7fffd70f6c88) at ../vswitchd/ovs-vswitchd.c:117

** Affects: openvswitch (Ubuntu)
     Importance: Undecided
         Status: New

** Summary changed:

- SIGSEV
+ SIGSEGV in nl_attr_get_size

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https://bugs.launchpad.net/bugs/1449012

Title:
  SIGSEGV in nl_attr_get_size

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