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authorcperciva <cperciva@FreeBSD.org>2005-05-06 02:50:00 +0000
committercperciva <cperciva@FreeBSD.org>2005-05-06 02:50:00 +0000
commite513415af91332f009d9733c7156e1a4a60c244f (patch)
treeb49c2e551390ab52afef3a68a53ec4b29faefa23 /sys/kern/subr_bus.c
parente4a28513e82eb23a2f1155a31e13cd9091ff21be (diff)
downloadFreeBSD-src-e513415af91332f009d9733c7156e1a4a60c244f.zip
FreeBSD-src-e513415af91332f009d9733c7156e1a4a60c244f.tar.gz
If we are going to
1. Copy a NULL-terminated string into a fixed-length buffer, and 2. copyout that buffer to userland, we really ought to 0. Zero the entire buffer first. Security: FreeBSD-SA-05:08.kmem
Diffstat (limited to 'sys/kern/subr_bus.c')
-rw-r--r--sys/kern/subr_bus.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c
index 531eaf9..3f2e477 100644
--- a/sys/kern/subr_bus.c
+++ b/sys/kern/subr_bus.c
@@ -3954,6 +3954,7 @@ sysctl_devices(SYSCTL_HANDLER_ARGS)
/*
* Populate the return array.
*/
+ bzero(&udev, sizeof(udev));
udev.dv_handle = (uintptr_t)dev;
udev.dv_parent = (uintptr_t)dev->parent;
if (dev->nameunit == NULL)
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