loop3: p1 start 1 is beyond EOD, truncated loop3: p2 start 101 is beyond EOD, truncated loop3: p3 start 201 is beyond EOD, truncated loop3: p4 start 301 is beyond EOD, truncated loop1: p1 p2 p3 < > p4 < > WARNING: CPU: 0 PID: 4930 at drivers/dma-buf/dma-buf.c:992 dma_buf_vunmap+0x1bb/0x220 drivers/dma-buf/dma-buf.c:992 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 4930 Comm: syz-executor4 Not tainted 4.20.0-rc7+ #378 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 panic+0x2ad/0x55c kernel/panic.c:188 __warn.cold.8+0x20/0x45 kernel/panic.c:540 report_bug+0x254/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:dma_buf_vunmap+0x1bb/0x220 drivers/dma-buf/dma-buf.c:992 Code: 00 00 00 00 e8 36 59 1c fd 4c 89 f7 e8 4e 1e 77 03 e8 29 59 1c fd 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 15 59 1c fd <0f> 0b eb e3 e8 0c 59 1c fd 0f 0b e8 05 59 1c fd 0f 0b e8 fe 58 1c RSP: 0018:ffff88815daef948 EFLAGS: 00010293 RAX: ffff8881b84325c0 RBX: 0000000000000000 RCX: ffffffff8558aa40 RDX: 0000000000000000 RSI: ffffffff84632b5b RDI: 0000000000000000 RBP: ffff88815daef978 R08: ffff8881b84325c0 R09: ffffed10305d6e7e R10: ffff88815daefad0 R11: ffff888182eb73f7 R12: ffffc90008a08000 R13: ffff8881c5c91b40 R14: ffff8881c5c91bb0 R15: ffff8881d8aa9680 vb2_vmalloc_detach_dmabuf+0x5a/0x80 drivers/media/common/videobuf2/videobuf2-vmalloc.c:406 __vb2_plane_dmabuf_put.isra.6+0x122/0x310 drivers/media/common/videobuf2/videobuf2-core.c:275 __vb2_buf_dmabuf_put drivers/media/common/videobuf2/videobuf2-core.c:291 [inline] __vb2_free_mem drivers/media/common/videobuf2/videobuf2-core.c:415 [inline] __vb2_queue_free+0x7f3/0xa30 drivers/media/common/videobuf2/videobuf2-core.c:458 vb2_core_queue_release+0x62/0x80 drivers/media/common/videobuf2/videobuf2-core.c:2257 vb2_queue_release+0x15/0x20 drivers/media/common/videobuf2/videobuf2-v4l2.c:842 v4l2_m2m_ctx_release+0x1e/0x35 drivers/media/v4l2-core/v4l2-mem2mem.c:930 vim2m_release+0xe6/0x150 drivers/media/platform/vim2m.c:977 v4l2_release+0x224/0x3a0 drivers/media/v4l2-core/v4l2-dev.c:456 __fput+0x385/0xa30 fs/file_table.c:278 ____fput+0x15/0x20 fs/file_table.c:309 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x411121 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffe19581520 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411121 RDX: 0000000000000000 RSI: 0000000000730e98 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffe19581450 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000388 R15: 0000000000000004 Kernel Offset: disabled Rebooting in 86400 seconds..