vim2m vim2m.0: vidioc_s_fmt queue busy IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 31358 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 ... ieee80211 phy131: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static) CPU: 1 PID: 31358 Comm: syz-executor.4 Not tainted 4.14.203-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 ieee80211 phy131: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static) panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x20/0x4b kernel/panic.c:547 ieee80211 phy131: mac80211_hwsim_bss_info_changed(changed=0x40000 vif->addr=02:00:00:00:83:00) report_bug+0x208/0x249 lib/bug.c:186 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 ieee80211 phy131: TX Power: 20 dBm ieee80211 phy131: mac80211_hwsim_bss_info_changed(changed=0x4000 vif->addr=02:00:00:00:83:00) ieee80211 phy131: mac80211_hwsim_conf_tx (queue=0 txop=0 cw_min=15 cw_max=1023 aifs=2) ieee80211 phy131: mac80211_hwsim_conf_tx (queue=1 txop=0 cw_min=15 cw_max=1023 aifs=2) 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:ffff8880421bfc80 EFLAGS: 00010297 ieee80211 phy131: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=2) RAX: ffff88803f998500 RBX: 0000000000000000 RCX: 0000000000000000 ieee80211 phy131: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=2) RDX: 0000000000000000 RSI: ffffc900129f4000 RDI: 0000000000000000 ieee80211 phy131: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:83:00) RBP: ffffc900129f4000 R08: 0000000000000000 R09: 0000000000040552 R10: ffff88803f998db0 R11: ffff88803f998500 R12: ffffc900129f4000 R13: ffff8880913cf868 R14: ffff888093efc680 R15: 0000000000000000 vb2_vmalloc_detach_dmabuf+0x57/0x80 drivers/media/v4l2-core/videobuf2-vmalloc.c:407 ieee80211 phy131: mac80211_hwsim_bss_info_changed(changed=0x8bfe vif->addr=02:00:00:00:83:00) __vb2_plane_dmabuf_put+0x10b/0x2e0 drivers/media/v4l2-core/videobuf2-core.c:273 ieee80211 phy131: mac80211_hwsim_bss_info_changed: BSSID changed: 50:50:50:50:50:50 __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 ieee80211 phy131: BCN EN: 1 (BI=100) vb2_core_queue_release+0x5b/0x70 drivers/media/v4l2-core/videobuf2-core.c:2043 v4l2_m2m_ctx_release+0x26/0x30 drivers/media/v4l2-core/v4l2-mem2mem.c:674 vim2m_release+0xd4/0x120 drivers/media/platform/vim2m.c:959 ieee80211 phy131: ERP_CTS_PROT: 0 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 ieee80211 phy131: ERP_PREAMBLE: 0 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 ieee80211 phy131: ERP_SLOT: 0 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x417811 RSP: 002b:00007ffe62a6f620 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000417811 RDX: 0000001b30920000 RSI: 00000000000017cb RDI: 0000000000000003 ieee80211 phy131: HT: op_mode=0xb RBP: 0000000000000001 R08: 000000009ca4b7ca R09: 000000009ca4b7ce ieee80211 phy131: BASIC_RATES: 0x1 R10: 00007ffe62a6f700 R11: 0000000000000293 R12: ffffffffffffffff IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready R13: 00000000001119fb R14: 00000000000003e8 R15: 000000000118bf2c Kernel Offset: disabled Rebooting in 86400 seconds..