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-rw-r--r--block/bsg.c3
-rw-r--r--drivers/scsi/sg.c3
2 files changed, 6 insertions, 0 deletions
diff --git a/block/bsg.c b/block/bsg.c
index 792ead6..73e5eb4 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -675,6 +675,9 @@ bsg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
dprintk("%s: write %Zd bytes\n", bd->name, count);
+ if (unlikely(segment_eq(get_fs(), KERNEL_DS)))
+ return -EINVAL;
+
bsg_set_block(bd, file);
bytes_written = 0;
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 4172f89..819c84b 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -543,6 +543,9 @@ sg_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos)
sg_io_hdr_t *hp;
unsigned char cmnd[MAX_COMMAND_SIZE];
+ if (unlikely(segment_eq(get_fs(), KERNEL_DS)))
+ return -EINVAL;
+
if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp)))
return -ENXIO;
SCSI_LOG_TIMEOUT(3, printk("sg_write: %s, count=%d\n",