diff options
| author | Nadezda Lutovinova <lutovinova@ispras.ru> | 2021-09-21 18:51:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-06 15:42:30 +0200 |
| commit | 6cb01fe630eaffc5a2c3f7364436caddba286623 (patch) | |
| tree | ea782e1181ade797a72695b2d0d39048d9ca2cdb /net/unix/af_unix.c | |
| parent | 504cf969d5856bd9a084da3bfe636ae4b42a6fe8 (diff) | |
hwmon: (w83793) Fix NULL pointer dereference by removing unnecessary structure field
commit dd4d747ef05addab887dc8ff0d6ab9860bbcd783 upstream.
If driver read tmp value sufficient for
(tmp & 0x08) && (!(tmp & 0x80)) && ((tmp & 0x7) == ((tmp >> 4) & 0x7))
from device then Null pointer dereference occurs.
(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)
Also lm75[] does not serve a purpose anymore after switching to
devm_i2c_new_dummy_device() in w83791d_detect_subclients().
The patch fixes possible NULL pointer dereference by removing lm75[].
Found by Linux Driver Verification project (linuxtesting.org).
Cc: stable@vger.kernel.org
Signed-off-by: Nadezda Lutovinova <lutovinova@ispras.ru>
Link: https://lore.kernel.org/r/20210921155153.28098-3-lutovinova@ispras.ru
[groeck: Dropped unnecessary continuation lines, fixed multi-line alignments]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions