diff options
Diffstat (limited to 'net/core/net-sysfs.c')
-rw-r--r-- | net/core/net-sysfs.c | 7 |
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; |