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authorColin Ian King <colin.king@canonical.com>2018-05-08 23:06:10 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-05-15 10:16:10 +0200
commit9df758d96df5773eb7f52878f8875f1c989993da (patch)
treefb985da3345c372aece1927add46d47418ffa985
parentACPICA: vsnprintf: this statement may fall through (diff)
downloadlinux-9df758d96df5773eb7f52878f8875f1c989993da.tar.xz
linux-9df758d96df5773eb7f52878f8875f1c989993da.zip
ACPICA: Fix potential infinite loop in acpi_rs_dump_byte_list
There is a potenial infinite loop if acpi_rs_dump_byte_list is called with a Length greater than 255 since the current loop counter is just a u8 and will wrap to zero and never reach the desired value in Length. Fix this by making the loop counter the size type as Length. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/acpi/acpica/rsdump.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c
index b12a0b1cd9ce..6601e71b45e3 100644
--- a/drivers/acpi/acpica/rsdump.c
+++ b/drivers/acpi/acpica/rsdump.c
@@ -539,7 +539,7 @@ static void acpi_rs_out_title(const char *title)
static void acpi_rs_dump_byte_list(u16 length, u8 * data)
{
- u8 i;
+ u16 i;
for (i = 0; i < length; i++) {
acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]);