DMAR: ERROR: DMA PTE for vPFN 0xbe500 already set (to 39c00003 not 3aa00003)
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WARNING: CPU: 3 PID: 10931 at drivers/iommu/intel/iommu.c:1679 __domain_mapping drivers/iommu/intel/iommu.c:1679 [inline]
WARNING: CPU: 3 PID: 10931 at drivers/iommu/intel/iommu.c:1679 intel_iommu_map drivers/iommu/intel/iommu.c:3593 [inline]
WARNING: CPU: 3 PID: 10931 at drivers/iommu/intel/iommu.c:1679 intel_iommu_map_pages+0xaa7/0x1520 drivers/iommu/intel/iommu.c:3612
Modules linked in:
CPU: 3 UID: 0 PID: 10931 Comm: syz.4.5999 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__domain_mapping drivers/iommu/intel/iommu.c:1679 [inline]
RIP: 0010:intel_iommu_map drivers/iommu/intel/iommu.c:3593 [inline]
RIP: 0010:intel_iommu_map_pages+0xaa7/0x1520 drivers/iommu/intel/iommu.c:3612
Code: 17 6c fc 8b 2d aa bb b8 09 31 ff 89 ee e8 21 62 8d fc 85 ed 74 0e e8 d8 66 8d fc 83 ed 01 89 2d 8f bb b8 09 e8 ca 66 8d fc 90 <0f> 0b 90 e9 da fa ff ff e8 bc 66 8d fc 4c 8b 7c 24 40 48 8d 43 ff
RSP: 0018:ffffc900264a75e0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88805e43b800 RCX: ffffffff852d75ff
RDX: ffff88802b05a440 RSI: ffffffff852d7616 RDI: 0000000000000005
RBP: 0000000000000004 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 00000000000bef00
R13: 0000000000000001 R14: 000000003aa00003 R15: 0000000000000002
FS:  00007f60f2b766c0(0000) GS:ffff8880d7181000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f60f1d72b60 CR3: 0000000055736000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 iommu_map_nosync+0x33a/0x700 drivers/iommu/iommu.c:2505
 iommu_map_sg+0x1c1/0x9d0 drivers/iommu/iommu.c:2677
 iommu_dma_map_sg+0x88c/0xde0 drivers/iommu/dma-iommu.c:1483
 __dma_map_sg_attrs+0x293/0x590 kernel/dma/mapping.c:216
 dma_map_sgtable+0x78/0x100 kernel/dma/mapping.c:294
 system_heap_map_dma_buf+0x66/0xf0 drivers/dma-buf/heaps/system_heap.c:124
 dma_buf_map_attachment+0x15e/0x5f0 drivers/dma-buf/dma-buf.c:1126
 dma_buf_map_attachment_unlocked+0x9e/0x150 drivers/dma-buf/dma-buf.c:1196
 drm_gem_prime_import_dev drivers/gpu/drm/drm_prime.c:999 [inline]
 drm_gem_prime_import_dev+0x166/0x440 drivers/gpu/drm/drm_prime.c:971
 virtgpu_gem_prime_import+0x16c/0x800 drivers/gpu/drm/virtio/virtgpu_prime.c:316
 drm_gem_prime_fd_to_handle+0x1a9/0x5f0 drivers/gpu/drm/drm_prime.c:317
 drm_prime_fd_to_handle_ioctl+0xd6/0x110 drivers/gpu/drm/drm_prime.c:375
 drm_ioctl_kernel+0x1f4/0x3e0 drivers/gpu/drm/drm_ioctl.c:796
 drm_ioctl+0x5c9/0xc30 drivers/gpu/drm/drm_ioctl.c:893
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f60f1d8eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f60f2b76038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f60f1fe5fa0 RCX: 00007f60f1d8eec9
RDX: 00002000000000c0 RSI: 00000000c00c642e RDI: 0000000000000005
RBP: 00007f60f2b76090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007f60f1fe6038 R14: 00007f60f1fe5fa0 R15: 00007ffe573e1d98
 </TASK>