------------[ cut here ]------------ WARNING: CPU: 0 PID: 22399 at drivers/dma-buf/dma-buf.c:1039 dma_buf_vunmap+0x181/0x1f0 drivers/dma-buf/dma-buf.c:1039 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 22399 Comm: syz-executor.5 Not tainted 4.14.286-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x20/0x44 kernel/panic.c:547 report_bug+0x208/0x250 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 RIP: 0010:dma_buf_vunmap+0x181/0x1f0 drivers/dma-buf/dma-buf.c:1039 RSP: 0018:ffff888066dc7c80 EFLAGS: 00010297 RAX: ffff888016392080 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffc9000f052000 RDI: 0000000000000000 RBP: ffffc9000f052000 R08: 0000000000000000 R09: 000000000004054b R10: ffff888016392930 R11: ffff888016392080 R12: ffffc9000f052000 R13: ffff8880b1acb5e8 R14: ffff8880b3819400 R15: 0000000000000000 vb2_vmalloc_detach_dmabuf+0x57/0x80 drivers/media/v4l2-core/videobuf2-vmalloc.c:407 __vb2_plane_dmabuf_put+0x10b/0x2e0 drivers/media/v4l2-core/videobuf2-core.c:273 __vb2_buf_dmabuf_put drivers/media/v4l2-core/videobuf2-core.c:289 [inline] __vb2_free_mem drivers/media/v4l2-core/videobuf2-core.c:411 [inline] __vb2_queue_free+0x5e4/0x7a0 drivers/media/v4l2-core/videobuf2-core.c:454 vb2_core_queue_release+0x5b/0x70 drivers/media/v4l2-core/videobuf2-core.c:2054 v4l2_m2m_ctx_release+0x1a/0x30 drivers/media/v4l2-core/v4l2-mem2mem.c:673 vim2m_release+0xd4/0x120 drivers/media/platform/vim2m.c:959 v4l2_release+0xf4/0x190 drivers/media/v4l2-core/v4l2-dev.c:446 __fput+0x25f/0x7a0 fs/file_table.c:210 task_work_run+0x11f/0x190 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f6aeaf9ed4b RSP: 002b:00007fffa0112f60 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f6aeaf9ed4b RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f6aeb100960 R08: 0000000000000000 R09: 00007f6aeb1049a8 R10: 0000000000000000 R11: 0000000000000293 R12: 00000000002f5b4a R13: 00007f6aeb104d90 R14: 00007f6aeb0ff2a0 R15: 0000000000000004 Kernel Offset: disabled Rebooting in 86400 seconds..