diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2018-06-12 15:19:35 -0700 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2018-06-16 16:40:36 -0700 |
| commit | 91bb8f45f73f19a0150c233c0f11cdeb6d71d1e9 (patch) | |
| tree | 5ba2dea6276d352c94ab8b5fb20be09083d41ad6 /net/nfc/nfc.h | |
| parent | 536e0019b7da4eb3badb4da5acbb70ae29e1b5ef (diff) | |
hwmon: (nct6775) Fix loop limit
Commit cc66b3038254 ("hwmon: (nct6775) Rework temperature source and label
handling") changed a loop limit from "data->temp_label_num - 1" to "32",
as part of moving from a string array to a bit mask. This results in the
following error, reported by UBSAN.
UBSAN: Undefined behaviour in drivers/hwmon/nct6775.c:4179:27
shift exponent 32 is too large for 32-bit type 'long unsigned int'
Similar to the original loop, the limit has to be one less than the
number of bits.
Fixes: cc66b3038254 ("hwmon: (nct6775) Rework temperature source and label handling")
Reported-by: Paul Menzel <pmenzel+linux-hwmon@molgen.mpg.de>
Cc: Paul Menzel <pmenzel+linux-hwmon@molgen.mpg.de>
Tested-by: Paul Menzel <pmenzel+linux-hwmon@molgen.mpg.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'net/nfc/nfc.h')
0 files changed, 0 insertions, 0 deletions