Searched hist:"7 e4fd7a1" (Results 1 – 5 of 5) sorted by relevance
| /openbmc/linux/drivers/irqchip/ |
| H A D | irq-loongarch-cpu.c | 7e4fd7a1 Mon Aug 08 05:50:20 CDT 2022 Marc Zyngier <maz@kernel.org> irqchip/loongarch: Fix irq_domain_alloc_fwnode() abuse
The recently merged LoongArch drivers paper over the lack of
topology information by creating a bunch of fwnodes for the
irqchips. So far, so good.
However, irq_domain_alloc_fwnode() is supposed to take a PA, and
not a kernel VA blindly cast as a PA, potentially disclosing
kernel VAs to userspace. In some other cases, even NULL is used
as the PA, which is entertaining.
Fix this by using the actual PA of the block when available,
and switch to a named fwnode in the other cases.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Jianmin Lv <lvjianmin@loongson.cn>
Link: https://lore.kernel.org/r/20220808105020.2689757-1-maz@kernel.org
|
| H A D | irq-loongson-pch-msi.c | 7e4fd7a1 Mon Aug 08 05:50:20 CDT 2022 Marc Zyngier <maz@kernel.org> irqchip/loongarch: Fix irq_domain_alloc_fwnode() abuse
The recently merged LoongArch drivers paper over the lack of
topology information by creating a bunch of fwnodes for the
irqchips. So far, so good.
However, irq_domain_alloc_fwnode() is supposed to take a PA, and
not a kernel VA blindly cast as a PA, potentially disclosing
kernel VAs to userspace. In some other cases, even NULL is used
as the PA, which is entertaining.
Fix this by using the actual PA of the block when available,
and switch to a named fwnode in the other cases.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Jianmin Lv <lvjianmin@loongson.cn>
Link: https://lore.kernel.org/r/20220808105020.2689757-1-maz@kernel.org
|
| H A D | irq-loongson-eiointc.c | 7e4fd7a1 Mon Aug 08 05:50:20 CDT 2022 Marc Zyngier <maz@kernel.org> irqchip/loongarch: Fix irq_domain_alloc_fwnode() abuse
The recently merged LoongArch drivers paper over the lack of
topology information by creating a bunch of fwnodes for the
irqchips. So far, so good.
However, irq_domain_alloc_fwnode() is supposed to take a PA, and
not a kernel VA blindly cast as a PA, potentially disclosing
kernel VAs to userspace. In some other cases, even NULL is used
as the PA, which is entertaining.
Fix this by using the actual PA of the block when available,
and switch to a named fwnode in the other cases.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Jianmin Lv <lvjianmin@loongson.cn>
Link: https://lore.kernel.org/r/20220808105020.2689757-1-maz@kernel.org
|
| H A D | irq-loongson-liointc.c | 7e4fd7a1 Mon Aug 08 05:50:20 CDT 2022 Marc Zyngier <maz@kernel.org> irqchip/loongarch: Fix irq_domain_alloc_fwnode() abuse
The recently merged LoongArch drivers paper over the lack of
topology information by creating a bunch of fwnodes for the
irqchips. So far, so good.
However, irq_domain_alloc_fwnode() is supposed to take a PA, and
not a kernel VA blindly cast as a PA, potentially disclosing
kernel VAs to userspace. In some other cases, even NULL is used
as the PA, which is entertaining.
Fix this by using the actual PA of the block when available,
and switch to a named fwnode in the other cases.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Jianmin Lv <lvjianmin@loongson.cn>
Link: https://lore.kernel.org/r/20220808105020.2689757-1-maz@kernel.org
|
| H A D | irq-loongson-pch-pic.c | 7e4fd7a1 Mon Aug 08 05:50:20 CDT 2022 Marc Zyngier <maz@kernel.org> irqchip/loongarch: Fix irq_domain_alloc_fwnode() abuse
The recently merged LoongArch drivers paper over the lack of
topology information by creating a bunch of fwnodes for the
irqchips. So far, so good.
However, irq_domain_alloc_fwnode() is supposed to take a PA, and
not a kernel VA blindly cast as a PA, potentially disclosing
kernel VAs to userspace. In some other cases, even NULL is used
as the PA, which is entertaining.
Fix this by using the actual PA of the block when available,
and switch to a named fwnode in the other cases.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Jianmin Lv <lvjianmin@loongson.cn>
Link: https://lore.kernel.org/r/20220808105020.2689757-1-maz@kernel.org
|