diff options
Diffstat (limited to 'kernel/block/bsg.c')
| -rw-r--r-- | kernel/block/bsg.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/block/bsg.c b/kernel/block/bsg.c index d214e929c..b9a53615b 100644 --- a/kernel/block/bsg.c +++ b/kernel/block/bsg.c @@ -655,6 +655,9 @@ 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; |