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drivers: eth: native_posix: Null terminate interface name

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The interface name is IFNAMSIZ long so we must not copy it
full which would overwrite the terminating null byte.

Coverity-CID: 195770
Fixes #14419

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2019-03-12 23:36:51 +02:00 committed by Kumar Gala
parent 269935dca9
commit 179d520777
1 changed files with 1 additions and 1 deletions
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drivers/ethernet/eth_native_posix_adapt.c
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@ -67,7 +67,7 @@ int eth_iface_create(const char *if_name, bool tun_only)
#ifdef __linux
ifr.ifr_flags = (tun_only ? IFF_TUN : IFF_TAP) | IFF_NO_PI;
strncpy(ifr.ifr_name, if_name, IFNAMSIZ);
strncpy(ifr.ifr_name, if_name, IFNAMSIZ - 1);
ret = ioctl(fd, TUNSETIFF, (void *)&ifr);
if (ret < 0) {