FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 fail_dump lib/fault-inject.c:73 [inline] should_fail_ex+0x412/0x560 lib/fault-inject.c:174 should_failslab+0xa8/0x100 mm/failslab.c:46 slab_pre_alloc_hook mm/slub.c:4522 [inline] slab_alloc_node mm/slub.c:4875 [inline] __do_kmalloc_node mm/slub.c:5294 [inline] __kmalloc_noprof+0xe8/0x760 mm/slub.c:5307 kmalloc_noprof include/linux/slab.h:954 [inline] dma_resv_list_alloc drivers/dma-buf/dma-resv.c:106 [inline] dma_resv_reserve_fences+0x225/0x7e0 drivers/dma-buf/dma-resv.c:205 virtio_gpu_array_lock_resv+0x20e/0x470 drivers/gpu/drm/virtio/virtgpu_gem.c:232 virtio_gpu_cursor_plane_update+0x270/0x930 drivers/gpu/drm/virtio/virtgpu_plane.c:462 drm_atomic_helper_commit_planes+0x60f/0xec0 drivers/gpu/drm/drm_atomic_helper.c:3038 drm_atomic_helper_commit_tail+0x5f/0x500 drivers/gpu/drm/drm_atomic_helper.c:1989 commit_tail+0x29a/0x3a0 drivers/gpu/drm/drm_atomic_helper.c:2074 drm_atomic_helper_commit+0xa6e/0xb10 drivers/gpu/drm/drm_atomic_helper.c:2312 drm_atomic_commit+0x246/0x2b0 drivers/gpu/drm/drm_atomic.c:1789 drm_atomic_helper_update_plane+0x248/0x3b0 drivers/gpu/drm/drm_atomic_helper.c:3438 __setplane_atomic drivers/gpu/drm/drm_plane.c:1101 [inline] drm_mode_cursor_universal drivers/gpu/drm/drm_plane.c:1256 [inline] drm_mode_cursor_common+0xec3/0x1650 drivers/gpu/drm/drm_plane.c:1315 drm_mode_cursor_ioctl+0xd4/0x130 drivers/gpu/drm/drm_plane.c:1365 drm_ioctl_kernel+0x2df/0x3b0 drivers/gpu/drm/drm_ioctl.c:804 drm_ioctl+0x6ba/0xb80 drivers/gpu/drm/drm_ioctl.c:901 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8271b9cdd9 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:00007f826dff4fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f8271e15fa0 RCX: 00007f8271b9cdd9 RDX: 0000200000000100 RSI: 00000000c01c64a3 RDI: 0000000000000003 RBP: 00007f826dff5050 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007f8271e16038 R14: 00007f8271e15fa0 R15: 00007ffccdd94e68 ------------[ cut here ]------------ debug_locks && !(lock_is_held(&(&(obj)->lock.base)->dep_map) != 0) WARNING: drivers/dma-buf/dma-resv.c:296 at dma_resv_add_fence+0x707/0x800 drivers/dma-buf/dma-resv.c:296, CPU#0: syz.0.0/5329 Modules linked in: CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:dma_resv_add_fence+0x707/0x800 drivers/dma-buf/dma-resv.c:296 Code: e8 8e 05 7b fb e9 d8 fa ff ff e8 44 db 9e fb 90 0f 0b 90 e9 41 fa ff ff e8 36 db 9e fb be 02 00 00 00 eb 18 e8 2a db 9e fb 90 <0f> 0b 90 e9 da f9 ff ff e8 1c db 9e fb be 01 00 00 00 48 89 df e8 RSP: 0018:ffffc9000e74f0f0 EFLAGS: 00010293 RAX: ffffffff8626f3b6 RBX: 0000000000000000 RCX: ffff888000c94a00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffff88803894b873 R09: 1ffff1100712970e R10: dffffc0000000000 R11: ffffed100712970f R12: ffff88803894b800 R13: 0000000000000001 R14: 0000000000000002 R15: 1ffff11007129613 FS: 00007f826dff56c0(0000) GS:ffff88808c882000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005606fb22e660 CR3: 00000000128d5000 CR4: 0000000000352ef0 Call Trace: virtio_gpu_array_add_fence+0x108/0x1c0 drivers/gpu/drm/virtio/virtgpu_gem.c:257 virtio_gpu_queue_ctrl_sgs drivers/gpu/drm/virtio/virtgpu_vq.c:410 [inline] virtio_gpu_queue_fenced_ctrl_buffer+0x975/0x1090 drivers/gpu/drm/virtio/virtgpu_vq.c:500 virtio_gpu_cursor_plane_update+0x31c/0x930 drivers/gpu/drm/virtio/virtgpu_plane.c:463 drm_atomic_helper_commit_planes+0x60f/0xec0 drivers/gpu/drm/drm_atomic_helper.c:3038 drm_atomic_helper_commit_tail+0x5f/0x500 drivers/gpu/drm/drm_atomic_helper.c:1989 commit_tail+0x29a/0x3a0 drivers/gpu/drm/drm_atomic_helper.c:2074 drm_atomic_helper_commit+0xa6e/0xb10 drivers/gpu/drm/drm_atomic_helper.c:2312 drm_atomic_commit+0x246/0x2b0 drivers/gpu/drm/drm_atomic.c:1789 drm_atomic_helper_update_plane+0x248/0x3b0 drivers/gpu/drm/drm_atomic_helper.c:3438 __setplane_atomic drivers/gpu/drm/drm_plane.c:1101 [inline] drm_mode_cursor_universal drivers/gpu/drm/drm_plane.c:1256 [inline] drm_mode_cursor_common+0xec3/0x1650 drivers/gpu/drm/drm_plane.c:1315 drm_mode_cursor_ioctl+0xd4/0x130 drivers/gpu/drm/drm_plane.c:1365 drm_ioctl_kernel+0x2df/0x3b0 drivers/gpu/drm/drm_ioctl.c:804 drm_ioctl+0x6ba/0xb80 drivers/gpu/drm/drm_ioctl.c:901 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8271b9cdd9 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:00007f826dff4fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f8271e15fa0 RCX: 00007f8271b9cdd9 RDX: 0000200000000100 RSI: 00000000c01c64a3 RDI: 0000000000000003 RBP: 00007f826dff5050 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007f8271e16038 R14: 00007f8271e15fa0 R15: 00007ffccdd94e68