git/linux-net
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/ synced 2026-04-17 22:23:45 -04:00
Code Issues Packages Projects Releases Wiki Activity

hwmon: (peci/cputemp) Fix off-by-one in cputemp_is_visible()

Browse Source 
cputemp_is_visible() validates the channel index against
CPUTEMP_CHANNEL_NUMS, but currently uses '>' instead of '>='.
As a result, channel == CPUTEMP_CHANNEL_NUMS is not rejected even though
valid indices are 0 .. CPUTEMP_CHANNEL_NUMS - 1.

Fix the bounds check by using '>=' so invalid channel indices are
rejected before indexing the core bitmap.

Fixes: bf3608f338 ("hwmon: peci: Add cputemp driver")
Cc: stable@vger.kernel.org
Signed-off-by: Sanman Pradhan <psanman@juniper.net>
Link: https://lore.kernel.org/r/20260323002352.93417-3-sanman.pradhan@hpe.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Sanman Pradhan
2026-03-23 00:24:37 +00:00
committed by Guenter Roeck
parent 0adc752b4f
commit b0c9d8ae71
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/hwmon/peci/cputemp.c
View File

@@ -319,7 +319,7 @@ static umode_t cputemp_is_visible(const void *data, enum hwmon_sensor_types type
{
const struct peci_cputemp *priv = data;
if (channel > CPUTEMP_CHANNEL_NUMS)
if (channel >= CPUTEMP_CHANNEL_NUMS)
return 0;
if (channel < channel_core)