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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2022-03-16 11:39:48 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-03-18 15:40:54 -0300 |
| commit | 87e0eacb176f9500c2063d140c0a1d7fa51ab8a5 (patch) | |
| tree | ca1be05ebaec1584c1bb63405614b6ad8a73a2ed | |
| parent | 2e11a5e459c1c4f1d27430d2707ec7ef77f371ca (diff) | |
| download | linux-stable-87e0eacb176f9500c2063d140c0a1d7fa51ab8a5.tar.gz linux-stable-87e0eacb176f9500c2063d140c0a1d7fa51ab8a5.tar.bz2 linux-stable-87e0eacb176f9500c2063d140c0a1d7fa51ab8a5.zip | |
RDMA/nldev: Prevent underflow in nldev_stat_set_counter_dynamic_doit()
This code checks "index" for an upper bound but it does not check for
negatives. Change the type to unsigned to prevent underflows.
Fixes: 3c3c1f141639 ("RDMA/nldev: Allow optional-counter status configuration through RDMA netlink")
Link: https://lore.kernel.org/r/20220316083948.GC30941@kili
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
| -rw-r--r-- | drivers/infiniband/core/nldev.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index f5aacaf7fb8e..ca24ce34da76 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -1951,9 +1951,10 @@ static int nldev_stat_set_counter_dynamic_doit(struct nlattr *tb[], u32 port) { struct rdma_hw_stats *stats; - int rem, i, index, ret = 0; struct nlattr *entry_attr; unsigned long *target; + int rem, i, ret = 0; + u32 index; stats = ib_get_hw_stats_port(device, port); if (!stats) |