scsi: logging: Fix scsi_logging_level bounds

[ Upstream commit 2cef5b4472c602e6c5a119aca869d9d4050586f3 ]

Bound scsi_logging_level sysctl writings between SYSCTL_ZERO and
SYSCTL_INT_MAX.

The proc_handler has thus been updated to proc_dointvec_minmax.

Signed-off-by: Nicolas Bouchinet <nicolas.bouchinet@ssi.gouv.fr>
Link: https://lore.kernel.org/r/20250224095826.16458-5-nicolas.bouchinet@clip-os.org
Reviewed-by: Joel Granados <joel.granados@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/scsi/scsi_sysctl.c b/drivers/scsi/scsi_sysctl.c
index be4aef0f4f9962c32c4bfed020e62d0ad1e86b65..055a03a83ad68ec4ac5f171e79a1e98658b7e78d 100644 (file)
--- a/drivers/scsi/scsi_sysctl.c
+++ b/drivers/scsi/scsi_sysctl.c
@@ -17,7 +17,9 @@ static const struct ctl_table scsi_table[] = {
          .data         = &scsi_logging_level,
          .maxlen       = sizeof(scsi_logging_level),
          .mode         = 0644,
-         .proc_handler = proc_dointvec },
+         .proc_handler = proc_dointvec_minmax,
+         .extra1       = SYSCTL_ZERO,
+         .extra2       = SYSCTL_INT_MAX },
 };
 
 static struct ctl_table_header *scsi_table_header;