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-rw-r--r--net/core/net-sysfs.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index c71c434a4c05..385aefe53648 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -665,11 +665,14 @@ static ssize_t store_rps_dev_flow_table_cnt(struct netdev_rx_queue *queue,
665 if (count) { 665 if (count) {
666 int i; 666 int i;
667 667
668 if (count > 1<<30) { 668 if (count > INT_MAX)
669 return -EINVAL;
670 count = roundup_pow_of_two(count);
671 if (count > (ULONG_MAX - sizeof(struct rps_dev_flow_table))
672 / sizeof(struct rps_dev_flow)) {
669 /* Enforce a limit to prevent overflow */ 673 /* Enforce a limit to prevent overflow */
670 return -EINVAL; 674 return -EINVAL;
671 } 675 }
672 count = roundup_pow_of_two(count);
673 table = vmalloc(RPS_DEV_FLOW_TABLE_SIZE(count)); 676 table = vmalloc(RPS_DEV_FLOW_TABLE_SIZE(count));
674 if (!table) 677 if (!table)
675 return -ENOMEM; 678 return -ENOMEM;