diff options
| author | Maurizio Lombardi <mlombard@redhat.com> | 2019-11-15 17:37:27 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-04 13:41:00 +0100 |
| commit | cda09f74dd19281b12237de293ab36a72f0b5b15 (patch) | |
| tree | 1acfd51041a64c4dcd57cfb3faff7b153911d548 /drivers/scsi | |
| parent | bc07cb62c2dfbd79c8886db56bd751d091f20657 (diff) | |
scsi: scsi_debug: num_tgts must be >= 0
[ Upstream commit aa5334c4f3014940f11bf876e919c956abef4089 ]
Passing the parameter "num_tgts=-1" will start an infinite loop that
exhausts the system memory
Link: https://lore.kernel.org/r/20191115163727.24626-1-mlombard@redhat.com
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/scsi_debug.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 2b0e61557317..d7118d3767c3 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -4953,6 +4953,11 @@ static int __init scsi_debug_init(void) return -EINVAL; } + if (sdebug_num_tgts < 0) { + pr_err("num_tgts must be >= 0\n"); + return -EINVAL; + } + if (sdebug_guard > 1) { pr_err("guard must be 0 or 1\n"); return -EINVAL; |