[PATCH 11/13] KNI: guard against unterminated dev_info.name leading to BUG in alloc_netdev()
From: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Date: 2016-12-13 01:08:19
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
Signed-off-by: Michał Mirosław <redacted> --- lib/librte_eal/linuxapp/kni/kni_misc.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/lib/librte_eal/linuxapp/kni/kni_misc.c b/lib/librte_eal/linuxapp/kni/kni_misc.c
index f0247aa..14a2e3b 100644
--- a/lib/librte_eal/linuxapp/kni/kni_misc.c
+++ b/lib/librte_eal/linuxapp/kni/kni_misc.c@@ -344,6 +344,12 @@ kni_ioctl_create(struct net *net, uint32_t ioctl_num, return -EIO; } + /* Check if name is zero-ended */ + if (strnlen(dev_info.name, sizeof(dev_info.name)) == sizeof(dev_info.name)) { + pr_err("kni.name not zero-terminated"); + return -EINVAL; + } + /** * Check if the cpu core id is valid for binding. */
--
2.10.2