3.5.7.22 -stable review patch. If anyone has any objections, please let me know.
------------------ From: stephen hemminger <[email protected]> commit cbd375567f7e4811b1c721f75ec519828ac6583f upstream. When userspace passes a large priority value the assignment of the unsigned value hopt->prio to signed int cl->prio causes cl->prio to become negative and the comparison is with TC_HTB_NUMPRIO is always false. The result is that HTB crashes by referencing outside the array when processing packets. With this patch the large value wraps around like other values outside the normal range. See: https://bugzilla.kernel.org/show_bug.cgi?id=60669 Signed-off-by: Stephen Hemminger <[email protected]> Acked-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]> [ luis: backported to 3.5: adjusted context ] Signed-off-by: Luis Henriques <[email protected]> --- net/sched/sch_htb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index e9ea2f3..6f15bd1 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -86,7 +86,7 @@ struct htb_class { unsigned int children; struct htb_class *parent; /* parent class */ - int prio; /* these two are used only by leaves... */ + u32 prio; /* these two are used only by leaves... */ int quantum; /* but stored for parent-to-leaf return */ union { -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
