ceph: loaded (mds proto 32) NET: Registered protocol family 38 async_tx: api initialized (async) Key type asymmetric registered Asymmetric key parser 'x509' registered Asymmetric key parser 'pkcs8' registered Key type pkcs7_test registered Asymmetric key parser 'tpm_parser' registered Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) io scheduler mq-deadline registered io scheduler kyber registered io scheduler bfq registered hgafb: HGA card not detected. hgafb: probe of hgafb.0 failed with error -22 usbcore: registered new interface driver udlfb uvesafb: failed to execute /sbin/v86d uvesafb: make sure that the v86d helper is installed and executable uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) uvesafb: vbe_init() failed with -22 uvesafb: probe of uvesafb.0 failed with error -22 vga16fb: mapped to 0x000000000da6ec48 Console: switching to colour frame buffer device 80x30 fb0: VGA16 VGA frame buffer device input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 ACPI: Power Button [PWRF] ioatdma: Intel(R) QuickData Technology Driver 5.00 PCI Interrupt Link [GSIF] enabled at IRQ 21 PCI Interrupt Link [GSIG] enabled at IRQ 22 PCI Interrupt Link [GSIH] enabled at IRQ 23 N_HDLC line discipline registered with maxframe=4096 Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A Cyclades driver 2.6 Initializing Nozomi driver 2.1d RocketPort device driver module, version 2.09, 12-June-2003 No rocketport ports found; unloading driver Non-volatile memory driver v1.3 Linux agpgart interface v0.103 [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 usbcore: registered new interface driver udl [drm] pci: virtio-vga detected at 0000:00:01.0 fb0: switching to virtiodrmfb from VGA16 VGA Console: switching to colour VGA+ 80x25 virtio-pci 0000:00:01.0: vgaarb: deactivate vga console Console: switching to colour dummy device 80x25 [drm] features: -virgl +edid [drm] number of scanouts: 1 [drm] number of cap sets: 0 [drm] Initialized virtio_gpu 0.1.0 0 for virtio0 on minor 2 general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.9.0-rc2-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:swiotlb_map+0x5ac/0x700 kernel/dma/swiotlb.c:683 Code: 28 04 00 00 48 c1 ea 03 80 3c 02 00 0f 85 4d 01 00 00 4c 8b a5 18 04 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 1e 01 00 00 48 8d 7d 50 4d 8b 24 24 48 b8 00 00 RSP: 0000:ffffc9000034f3e0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8162ea1d RDX: 0000000000000000 RSI: ffffffff8162ea98 RDI: ffff888029e7e470 RBP: ffff888029e7e048 R08: 0000000000000001 R09: ffffffff8c5f3a37 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 000000007ac00000 R14: dffffc0000000000 R15: 0000000000001000 FS: 0000000000000000(0000) GS:ffff88802ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88800d601000 CR3: 0000000009a8d000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dma_direct_map_page include/linux/dma-direct.h:167 [inline] dma_direct_map_sg+0x3bb/0x670 kernel/dma/direct.c:373 dma_map_sg_attrs+0xd0/0x160 kernel/dma/mapping.c:183 drm_gem_shmem_get_pages_sgt drivers/gpu/drm/drm_gem_shmem_helper.c:700 [inline] drm_gem_shmem_get_pages_sgt+0x1fc/0x310 drivers/gpu/drm/drm_gem_shmem_helper.c:679 virtio_gpu_object_shmem_init drivers/gpu/drm/virtio/virtgpu_object.c:154 [inline] virtio_gpu_object_create+0x2fd/0xa70 drivers/gpu/drm/virtio/virtgpu_object.c:233 virtio_gpu_gem_create drivers/gpu/drm/virtio/virtgpu_gem.c:45 [inline] virtio_gpu_mode_dumb_create+0x298/0x530 drivers/gpu/drm/virtio/virtgpu_gem.c:85 drm_mode_create_dumb+0x27c/0x300 drivers/gpu/drm/drm_dumb_buffers.c:94 drm_client_buffer_create drivers/gpu/drm/drm_client.c:267 [inline] drm_client_framebuffer_create+0x1b7/0x770 drivers/gpu/drm/drm_client.c:412 drm_fb_helper_generic_probe+0x1e5/0x810 drivers/gpu/drm/drm_fb_helper.c:2086 drm_fb_helper_single_fb_probe drivers/gpu/drm/drm_fb_helper.c:1635 [inline] __drm_fb_helper_initial_config_and_unlock+0xbc6/0x12d0 drivers/gpu/drm/drm_fb_helper.c:1793 drm_fb_helper_initial_config drivers/gpu/drm/drm_fb_helper.c:1888 [inline] drm_fb_helper_initial_config drivers/gpu/drm/drm_fb_helper.c:1880 [inline] drm_fbdev_client_hotplug+0x2d4/0x580 drivers/gpu/drm/drm_fb_helper.c:2180 drm_fbdev_generic_setup+0x1c8/0x450 drivers/gpu/drm/drm_fb_helper.c:2262 virtio_gpu_probe+0x28f/0x2e0 drivers/gpu/drm/virtio/virtgpu_drv.c:127 virtio_dev_probe+0x445/0x6f0 drivers/virtio/virtio.c:248 really_probe+0x282/0x9f0 drivers/base/dd.c:553 driver_probe_device+0xfe/0x1d0 drivers/base/dd.c:738 device_driver_attach+0x228/0x290 drivers/base/dd.c:1013 __driver_attach drivers/base/dd.c:1090 [inline] __driver_attach+0xda/0x240 drivers/base/dd.c:1044 bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:305 bus_add_driver+0x348/0x5a0 drivers/base/bus.c:622 driver_register+0x220/0x3a0 drivers/base/driver.c:171 do_one_initcall+0x10a/0x7a4 init/main.c:1204 do_initcall_level init/main.c:1277 [inline] do_initcalls init/main.c:1293 [inline] do_basic_setup init/main.c:1313 [inline] kernel_init_freeable+0x59c/0x620 init/main.c:1512 kernel_init+0xd/0x1c0 init/main.c:1402 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Modules linked in: ---[ end trace cd1a6ed2b22f1a40 ]--- RIP: 0010:swiotlb_map+0x5ac/0x700 kernel/dma/swiotlb.c:683 Code: 28 04 00 00 48 c1 ea 03 80 3c 02 00 0f 85 4d 01 00 00 4c 8b a5 18 04 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 1e 01 00 00 48 8d 7d 50 4d 8b 24 24 48 b8 00 00 RSP: 0000:ffffc9000034f3e0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8162ea1d RDX: 0000000000000000 RSI: ffffffff8162ea98 RDI: ffff888029e7e470 RBP: ffff888029e7e048 R08: 0000000000000001 R09: ffffffff8c5f3a37 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 000000007ac00000 R14: dffffc0000000000 R15: 0000000000001000 FS: 0000000000000000(0000) GS:ffff88802d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000009a8d000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400