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| author |   Pim van Pelt <pim@ipng.nl> | 2022-06-03 21:05:26 +0000 |
|---|---|---|
| committer |   Damjan Marion <dmarion@0xa5.net> | 2022-06-07 14:17:44 +0000 |
| commit | 96158834db03036f9885654f198a02b68fc98830 (patch) | |
| tree | 8e32e7d28eaa9e06aed9892b1a213a5c887f41b1 /src/vat/plugin.c | |
| parent | 9cca694c8f02dbe4a633938ef819bfb67e603888 (diff) | |
vlib: fix crash on packet on deleted interface
If ip4_neighbor_probe (or any other) is sending packet to a deleted interface,
ASSERT trips and dataplane crashes. Example:
create loopback interface instance 0
set interface ip address loop0 10.0.0.1/32
set interface state GigabitEthernet3/0/1 up
set interface state loop0 up
set interface state loop0 down
set interface ip address del loop0 10.0.0.1/32
delete loopback interface intfc loop0
set interface state GigabitEthernet3/0/1 down
set interface state GigabitEthernet3/0/1 up
comment { the following crashes VPP }
set interface state GigabitEthernet3/0/1 down
This sequence reliably crashes VPP:
(gdb)p n->name
$4 = (u8 *) 0x7fff82b47578 "interface-3-output-deleted”
If the interface doesn't exist, return ~0 and be tolerant of this in the
two call sites of counter_index()
Type: fix
Signed-off-by: Pim van Pelt <pim@ipng.nl>
Change-Id: I90ec58fc0d14b20c9822703fe914f2ce89acb18d
Diffstat (limited to 'src/vat/plugin.c')
0 files changed, 0 insertions, 0 deletions