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authorStefan Agner <stefan@agner.ch>2017-03-14 13:59:28 -0700
committerMax Krummenacher <max.krummenacher@toradex.com>2017-03-15 18:35:51 +0100
commit39ac0033f2345ce7b5d8ca4439192407dacb2355 (patch)
tree51dc588baa63d31bc406388885f62c1cae068fa3 /block/bsg.c
parent13f2767f31803754aa883f298737aff866f04628 (diff)
parentd9e0350d2575a20ee7783427da9bd6b6107eb983 (diff)
Merge tag 'v4.1.39' into toradex_vf_4.1-nexttoradex_vf_4.1
Linux 4.1.39
Diffstat (limited to 'block/bsg.c')
-rw-r--r--block/bsg.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/block/bsg.c b/block/bsg.c
index d214e929ce18..b9a53615bdef 100644
--- a/block/bsg.c
+++ b/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;