Commit 4b618433 authored by Salva Peiró's avatar Salva Peiró Committed by Greg Kroah-Hartman

staging/dgnc: fix info leak in ioctl

The dgnc_mgmt_ioctl() code fails to initialize the 16 _reserved bytes of
struct digi_dinfo after the ->dinfo_nboards member. Add an explicit
memset(0) before filling the structure to avoid the info leak.
Signed-off-by: default avatarSalva Peiró <speirofr@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 561e2967
...@@ -110,6 +110,7 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) ...@@ -110,6 +110,7 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
spin_lock_irqsave(&dgnc_global_lock, flags); spin_lock_irqsave(&dgnc_global_lock, flags);
memset(&ddi, 0, sizeof(ddi));
ddi.dinfo_nboards = dgnc_NumBoards; ddi.dinfo_nboards = dgnc_NumBoards;
sprintf(ddi.dinfo_version, "%s", DG_PART); sprintf(ddi.dinfo_version, "%s", DG_PART);
......
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