DMAR: ERROR: DMA PTE for vPFN 0xbeb00 already set (to 5f000003 not 5f000003)
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WARNING: CPU: 1 PID: 7311 at drivers/iommu/intel/iommu.c:1679 __domain_mapping drivers/iommu/intel/iommu.c:1679 [inline]
WARNING: CPU: 1 PID: 7311 at drivers/iommu/intel/iommu.c:1679 intel_iommu_map drivers/iommu/intel/iommu.c:3593 [inline]
WARNING: CPU: 1 PID: 7311 at drivers/iommu/intel/iommu.c:1679 intel_iommu_map_pages+0xaa7/0x1520 drivers/iommu/intel/iommu.c:3612
Modules linked in:
CPU: 1 UID: 0 PID: 7311 Comm: syz.3.522 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: 66 5c fc 8b 2d ea 75 cc 09 31 ff 89 ee e8 c1 0c 7e fc 85 ed 74 0e e8 78 11 7e fc 83 ed 01 89 2d cf 75 cc 09 e8 6a 11 7e fc 90 <0f> 0b 90 e9 da fa ff ff e8 5c 11 7e fc 4c 8b 7c 24 40 48 8d 43 ff
RSP: 0018:ffffc9000de9f5d0 EFLAGS: 00010283
RAX: 0000000000005d94 RBX: ffff888057280800 RCX: ffffc900077b3000
RDX: 0000000000080000 RSI: ffffffff853e5356 RDI: 0000000000000005
RBP: 0000000000000004 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 00000000000ffb00
R13: 0000000000000001 R14: 000000005f000003 R15: 0000000000000002
FS:  00007faf2f8ee6c0(0000) GS:ffff8880d6adf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555579c68808 CR3: 0000000057829000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 iommu_map_nosync+0x337/0x700 drivers/iommu/iommu.c:2531
 iommu_map_sg+0x1c1/0x9d0 drivers/iommu/iommu.c:2703
 iommu_dma_map_sg+0x92d/0xe90 drivers/iommu/dma-iommu.c:1493
 __dma_map_sg_attrs+0x293/0x590 kernel/dma/mapping.c:261
 dma_map_sgtable+0x78/0x100 kernel/dma/mapping.c:339
 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:995 [inline]
 drm_gem_prime_import_dev+0x166/0x440 drivers/gpu/drm/drm_prime.c:967
 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:313
 drm_prime_fd_to_handle_ioctl+0xd6/0x110 drivers/gpu/drm/drm_prime.c:371
 drm_ioctl_kernel+0x1f4/0x3e0 drivers/gpu/drm/drm_ioctl.c:797
 drm_ioctl+0x5c9/0xc30 drivers/gpu/drm/drm_ioctl.c:894
 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/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7faf2e98eec9
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:00007faf2f8ee038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007faf2ebe5fa0 RCX: 00007faf2e98eec9
RDX: 00002000000000c0 RSI: 00000000c00c642e RDI: 000000000000000d
RBP: 00007faf2ea11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007faf2ebe6038 R14: 00007faf2ebe5fa0 R15: 00007fff4c970868
 </TASK>