From 262152ec37101f9dc524743ccdbd6c7641d14573 Mon Sep 17 00:00:00 2001 From: Yang Xiuwei Date: Mon, 30 Mar 2026 09:49:52 +0800 Subject: [PATCH] scsi: sd: fix missing put_disk() when device_add(&disk_dev) fails commit 1e111c4b3a726df1254670a5cc4868cedb946d37 upstream. If device_add(&sdkp->disk_dev) fails, put_device() runs scsi_disk_release(), which frees the scsi_disk but leaves the gendisk referenced. The device_add_disk() error path in sd_probe() calls put_disk(gd); call put_disk(gd) here to mirror that cleanup. Fixes: 265dfe8ebbab ("scsi: sd: Free scsi_disk device via put_device()") Cc: stable@vger.kernel.org Reviewed-by: John Garry Signed-off-by: Yang Xiuwei Link: https://patch.msgid.link/20260330014952.152776-1-yangxiuwei@kylinos.cn Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/sd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 873c920eb0cf..8cb10cb78b1d 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -3727,6 +3727,7 @@ static int sd_probe(struct device *dev) error = device_add(&sdkp->disk_dev); if (error) { put_device(&sdkp->disk_dev); + put_disk(gd); goto out; }