mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-03 20:34:23 -04:00
Code Issues Packages Projects Releases Wiki Activity

net/mlx5: Check for invalid vector index on EQ creation

Browse Source 
Currently, mlx5 driver does not enforce vector index to be lower than
the maximum number of supported completion vectors when requesting a
new completion EQ. Thus, mlx5_comp_eqn_get() fails when trying to
acquire an IRQ with an improper vector index.

To prevent the case above, enforce that vector index value is
valid and lower than maximum in mlx5_comp_eqn_get() before handling the
request.

Fixes: f14c1a14e6 ("net/mlx5: Allocate completion EQs dynamically")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Maher Sanalla
2024-10-15 12:32:05 +03:00
committed by Paolo Abeni
parent 9addffa343
commit d4f25be27e
1 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/ethernet/mellanox/mlx5/core/eq.c
View File

@@ -1061,6 +1061,12 @@ int mlx5_comp_eqn_get(struct mlx5_core_dev *dev, u16 vecidx, int *eqn)
struct mlx5_eq_comp *eq;
int ret = 0;
if (vecidx >= table->max_comp_eqs) {
mlx5_core_dbg(dev, "Requested vector index %u should be less than %u",
vecidx, table->max_comp_eqs);
return -EINVAL;
}
mutex_lock(&table->comp_lock);
eq = xa_load(&table->comp_eqs, vecidx);
if (eq) {