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| author | Maurizio Lombardi <mlombard@redhat.com> | 2019-11-15 19:37:27 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-04 21:18:15 +0300 |
| commit | 9d411fa766a87315ceecd2a098531e0e322835a1 (patch) | |
| tree | 69c73fc74c40d5758a884dd1c74babe1c2a167d6 /drivers/scsi | |
| parent | 17e6ff3d46add0e8618d0791dbd2adddc8b09b65 (diff) | |
| download | linux-9d411fa766a87315ceecd2a098531e0e322835a1.tar.xz | |
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 d323523f5f9d..32965ec76965 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -5263,6 +5263,11 @@ 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; |