diff options
| author | Dinghao Liu <dinghao.liu@zju.edu.cn> | 2021-01-05 13:18:37 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-17 13:57:55 +0100 |
| commit | 68a426a3fb4a892a0105a54b4bc1a1bd8354023f (patch) | |
| tree | 781f2cabbe6c6b3483ef160bb50781e88f8921a2 | |
| parent | bb1cdae411c66a1d1d056ef65611b13131350f4b (diff) | |
iommu/intel: Fix memleak in intel_irq_remapping_alloc
commit ff2b46d7cff80d27d82f7f3252711f4ca1666129 upstream.
When irq_domain_get_irq_data() or irqd_cfg() fails
at i == 0, data allocated by kzalloc() has not been
freed before returning, which leads to memleak.
Fixes: b106ee63abcc ("irq_remapping/vt-d: Enhance Intel IR driver to support hierarchical irqdomains")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20210105051837.32118-1-dinghao.liu@zju.edu.cn
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/iommu/intel_irq_remapping.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c index ce125ec23d2a..88ba1a65c283 100644 --- a/drivers/iommu/intel_irq_remapping.c +++ b/drivers/iommu/intel_irq_remapping.c @@ -1350,6 +1350,8 @@ static int intel_irq_remapping_alloc(struct irq_domain *domain, irq_data = irq_domain_get_irq_data(domain, virq + i); irq_cfg = irqd_cfg(irq_data); if (!irq_data || !irq_cfg) { + if (!i) + kfree(data); ret = -EINVAL; goto out_free_data; } |