F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0) WARNING: CPU: 1 PID: 7894 at drivers/tty/tty_ioctl.c:319 tty_set_termios+0x7a5/0x8d0 drivers/tty/tty_ioctl.c:319 F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 7894 Comm: kworker/u5:1 Not tainted 4.19.56 #28 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: hci0 hci_power_on Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x263/0x507 kernel/panic.c:185 audit: type=1400 audit(1561856784.836:109): avc: denied { map } for pid=12491 comm="modprobe" path="/bin/kmod" dev="sda1" ino=1440 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 __warn.cold+0x20/0x4a kernel/panic.c:540 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296 F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0) do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1013 RIP: 0010:tty_set_termios+0x7a5/0x8d0 drivers/tty/tty_ioctl.c:319 Code: 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 a3 00 00 00 45 89 a7 d0 03 00 00 e9 49 fe ff ff e8 9b 36 05 fe <0f> 0b e9 3e f9 ff ff e8 af 9b 3b fe e9 d6 fa ff ff e8 a5 9b 3b fe RSP: 0018:ffff888058947990 EFLAGS: 00010293 RAX: ffff88805893e440 RBX: ffff888058947a50 RCX: ffffffff8365d94d RDX: 0000000000000000 RSI: ffffffff8365e015 RDI: 0000000000000005 RBP: ffff888058947a78 R08: ffff88805893e440 R09: fffffbfff15dcbc9 R10: fffffbfff15dcbc8 R11: 0000000000000003 R12: ffff888058947ab8 R13: 0000000000010004 R14: 1ffff1100b128f51 R15: ffff8880a5054180 F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock hci_uart_set_baudrate+0x157/0x1c0 drivers/bluetooth/hci_ldisc.c:378 hci_uart_setup+0xa2/0x490 drivers/bluetooth/hci_ldisc.c:401 kobject: 'loop2' (00000000aad04397): kobject_uevent_env hci_dev_do_open+0x674/0x14a0 net/bluetooth/hci_core.c:1423 hci_power_on+0x10d/0x580 net/bluetooth/hci_core.c:2130 process_one_work+0x989/0x1750 kernel/workqueue.c:2153 kobject: 'loop2' (00000000aad04397): fill_kobj_path: path = '/devices/virtual/block/loop2' worker_thread+0x98/0xe40 kernel/workqueue.c:2296 kthread+0x354/0x420 kernel/kthread.c:246 audit: type=1400 audit(1561856784.836:110): avc: denied { create } for pid=12476 comm="syz-executor.3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Kernel Offset: disabled Rebooting in 86400 seconds..