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authorChen Gang <gang.chen@asianux.com>2013-05-27 04:57:09 +0000
committerHelge Deller <deller@gmx.de>2013-06-01 14:27:56 +0200
commit3f108de96ba449a8df3d7e3c053bf890fee2cb95 (patch)
treefcd442cb11a9110e16293457d9e5ac7de433c2e3
parent0f7dafd44e2de131f67fca87378e30ca86bc00d5 (diff)
downloadlinux-3f108de96ba449a8df3d7e3c053bf890fee2cb95.tar.gz
parisc: memory overflow, 'name' length is too short for using
'path.bc[i]' can be asigned by PCI_SLOT() which can '> 10', so sizeof(6 * "%u:" + "%u" + '\0') may be 21. Since 'name' length is 20, it may be memory overflow. And 'path.bc[i]' is 'unsigned char' for printing, we can be sure the max length of 'name' must be less than 28. So simplify thinking, we can use 28 instead of 20 directly, and do not think of whether 'patchc.bc[i]' can '> 100'. Signed-off-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: Helge Deller <deller@gmx.de>
-rw-r--r--arch/parisc/kernel/drivers.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 5709c5e59be..14285caec71 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -394,7 +394,7 @@ EXPORT_SYMBOL(print_pci_hwpath);
static void setup_bus_id(struct parisc_device *padev)
{
struct hardware_path path;
- char name[20];
+ char name[28];
char *output = name;
int i;