1048443 pages RAM 0 pages HighMem/MovableOnly 285335 pages reserved 0 pages cma reserved ------------[ cut here ]------------ ret WARNING: drivers/dma-buf/dma-buf.c:1653 at dma_buf_vmap+0x3c5/0x430 drivers/dma-buf/dma-buf.c:1653, CPU#2: syz.1.662/8866 Modules linked in: CPU: 2 UID: 0 PID: 8866 Comm: syz.1.662 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:dma_buf_vmap+0x3c5/0x430 drivers/dma-buf/dma-buf.c:1653 Code: fb e9 22 fd ff ff 48 8b 3c 24 e8 d6 8c fb fb e9 30 ff ff ff e8 2c 02 8b fb 90 0f 0b e8 24 02 8b fb 90 0f 0b e8 1c 02 8b fb 90 <0f> 0b 90 e9 3f fe ff ff e8 ae 4b 3c 05 4c 89 ff e8 e6 8b fb fb e9 RSP: 0018:ffffc900047cf3f8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8880564a8000 RCX: ffffffff867f5e81 RDX: ffff888043e38000 RSI: ffffffff867f5fc4 RDI: ffff888043e38000 RBP: ffffc900047cf498 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffff4 R11: 0000000000000000 R12: ffff8880564a88d0 R13: 1ffff920008f9e82 R14: 00000000fffffff4 R15: ffff8880564a8030 FS: 00007f122a4896c0(0000) GS:ffff8880d5fd8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1229587640 CR3: 00000000583ad000 CR4: 0000000000352ef0 Call Trace: drm_gem_shmem_vmap_locked+0x113/0x860 drivers/gpu/drm/drm_gem_shmem_helper.c:398 drm_gem_vmap_locked+0xc8/0x1c0 drivers/gpu/drm/drm_gem.c:1422 drm_gem_vmap+0x4a/0xa0 drivers/gpu/drm/drm_gem.c:1464 drm_gem_fb_vmap+0xc7/0x450 drivers/gpu/drm/drm_gem_framebuffer_helper.c:369 vkms_prepare_fb+0x87/0xb0 drivers/gpu/drm/vkms/vkms_plane.c:197 drm_atomic_helper_prepare_planes drivers/gpu/drm/drm_atomic_helper.c:2838 [inline] drm_atomic_helper_prepare_planes+0x1f2/0xbe0 drivers/gpu/drm/drm_atomic_helper.c:2814 drm_atomic_helper_commit+0x191/0x380 drivers/gpu/drm/drm_atomic_helper.c:2268 drm_atomic_commit+0x230/0x300 drivers/gpu/drm/drm_atomic.c:1789 drm_atomic_helper_update_plane+0x314/0x400 drivers/gpu/drm/drm_atomic_helper.c:3438 __setplane_atomic+0x22d/0x350 drivers/gpu/drm/drm_plane.c:1101 drm_mode_cursor_universal+0x5e9/0xe20 drivers/gpu/drm/drm_plane.c:1256 drm_mode_cursor_common+0x308/0x970 drivers/gpu/drm/drm_plane.c:1315 drm_mode_cursor_ioctl+0xd4/0x110 drivers/gpu/drm/drm_plane.c:1365 drm_ioctl_kernel+0x1f3/0x3e0 drivers/gpu/drm/drm_ioctl.c:817 drm_ioctl+0x5e6/0xc60 drivers/gpu/drm/drm_ioctl.c:914 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+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f122959e019 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f122a489028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f1229825fa0 RCX: 00007f122959e019 RDX: 0000200000000280 RSI: 00000000c01c64a3 RDI: 0000000000000003 RBP: 00007f122a489090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007f1229826038 R14: 00007f1229825fa0 R15: 00007fffd25b4a68