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qemu
0049-pvrdma-add-uar_read-routine.patch
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File 0049-pvrdma-add-uar_read-routine.patch of Package qemu
From: Prasad J Pandit <pjp@fedoraproject.org> Date: Thu, 13 Dec 2018 01:00:35 +0530 Subject: pvrdma: add uar_read routine Define skeleton 'uar_read' routine. Avoid NULL dereference. Reported-by: Li Qiang <liq3ea@163.com> Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> (cherry picked from commit 2aa86456fb938a11f2b7bd57c8643c213218681c) [BR: BSC#1119979 CVE-2018-20191] Signed-off-by: Bruce Rogers <brogers@suse.com> --- hw/rdma/vmw/pvrdma_main.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/hw/rdma/vmw/pvrdma_main.c b/hw/rdma/vmw/pvrdma_main.c index 34d8cc4694..c9d9631769 100644 --- a/hw/rdma/vmw/pvrdma_main.c +++ b/hw/rdma/vmw/pvrdma_main.c @@ -455,6 +455,11 @@ static const MemoryRegionOps regs_ops = { }, }; +static uint64_t uar_read(void *opaque, hwaddr addr, unsigned size) +{ + return 0xffffffff; +} + static void uar_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { PVRDMADev *dev = opaque; @@ -496,6 +501,7 @@ static void uar_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) } static const MemoryRegionOps uar_ops = { + .read = uar_read, .write = uar_write, .endianness = DEVICE_LITTLE_ENDIAN, .impl = {
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