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authorMatthew Smith <mgsmith@netgate.com>2021-01-14 16:51:57 -0600
committerDamjan Marion <dmarion@me.com>2021-01-21 13:16:58 +0000
commit38b63a30ca0d8bc5aeea5e683be7b69a6a19a2dd (patch)
treec6bb76d458ff55997ab1f815016cfb4b9da5bc65 /src
parentcfa8a89338ded1d5fbfa95dfab539fa61df72230 (diff)
dpdk: terminate device devargs string
Type: fix When a device is whitelisted with devargs arguments specified, the string that is generated and added to conf->eal_init_args is not explicitly terminated with 0. If the formatted string takes up all of the memory allocated to the vector which stores it and it is used later as a string in a format() or printf() call, any nonzero characters stored in memory at the address immediately following the memory allocated for the vector will be erroneously appended to the string. Terminate the string with 0 to ensure that this does not happen. Change-Id: I20a78d994daad93bf5aecab5c03d705022e882ec Signed-off-by: Matthew Smith <mgsmith@netgate.com>
Diffstat (limited to 'src')
-rw-r--r--src/plugins/dpdk/device/init.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index f3d228c5820..a1eead20541 100644
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -1595,7 +1595,8 @@ dpdk_config (vlib_main_t * vm, unformat_input_t * input)
vec_add1 (conf->eal_init_args, tmp);
if (devconf->devargs)
{
- tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
+ tmp = format (0, "%U,%s%c", format_vlib_pci_addr,
+ &devconf->pci_addr, devconf->devargs, 0);
}
else
{