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| author | Nikita Danilov | 2019-02-27 13:10:07 +0100 |
|---|---|---|
| committer | David S. Miller | 2019-03-02 01:45:15 +0100 |
| commit | 13b7997a103d90a2174ab93abefe3c9376bb97e5 (patch) | |
| tree | 51f6339501202ca07f8c9ac019d0cae110d9dfdf /drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c | |
| parent | net: aquantia: added newline at end of file (diff) | |
| download | kernel-qcow2-linux-13b7997a103d90a2174ab93abefe3c9376bb97e5.tar.gz kernel-qcow2-linux-13b7997a103d90a2174ab93abefe3c9376bb97e5.tar.xz kernel-qcow2-linux-13b7997a103d90a2174ab93abefe3c9376bb97e5.zip | |
net: aquantia: fixed buffer overflow
The overflow is detected by smatch:
drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c: 175
aq_pci_func_free_irqs() error: buffer overflow 'self->aq_vec' 8 <= 31
In reality msix_entry_mask always restricts number of iterations.
Adding extra condition to make logic clear and smatch happy.
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c')
| -rw-r--r-- | drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c index c8b44cdb91c1..0217ff4669a4 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c @@ -170,6 +170,8 @@ void aq_pci_func_free_irqs(struct aq_nic_s *self) for (i = 32U; i--;) { if (!((1U << i) & self->msix_entry_mask)) continue; + if (i >= AQ_CFG_VECS_MAX) + continue; if (pdev->msix_enabled) irq_set_affinity_hint(pci_irq_vector(pdev, i), NULL); |