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authorDan Carpenter <dan.carpenter@oracle.com>2015-10-19 13:16:49 +0300
committerDavid S. Miller <davem@davemloft.net>2015-10-21 07:48:26 -0700
commit50010c20597d14667eff0fdb628309986f195230 (patch)
treeddf7817ca710a0e7f6222d3c2764d4aa66ba2b94
parentca88ea1247dfee094e2467a3578eaec9bdf0833a (diff)
irda: precedence bug in irlmp_seq_hb_idx()
This is decrementing the pointer, instead of the value stored in the pointer. KASan detects it as an out of bounds reference. Reported-by: "Berry Cheng 程君(成淼)" <chengmiao.cj@alibaba-inc.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/irda/irlmp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/irda/irlmp.c b/net/irda/irlmp.c
index a26c401ef4a4..43964594aa12 100644
--- a/net/irda/irlmp.c
+++ b/net/irda/irlmp.c
@@ -1839,7 +1839,7 @@ static void *irlmp_seq_hb_idx(struct irlmp_iter_state *iter, loff_t *off)
for (element = hashbin_get_first(iter->hashbin);
element != NULL;
element = hashbin_get_next(iter->hashbin)) {
- if (!off || *off-- == 0) {
+ if (!off || (*off)-- == 0) {
/* NB: hashbin left locked */
return element;
}