create_huge_pmd mm/memory.c:3974 [inline] __handle_mm_fault+0x2ac4/0x4620 mm/memory.c:4177 handle_mm_fault+0x455/0x9c0 mm/memory.c:4243 __do_page_fault+0x549/0xad0 arch/x86/mm/fault.c:1442 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 23899 at fs/super.c:1163 kill_block_super+0xbe/0xe0 fs/super.c:1163 Kernel panic - not syncing: panic_on_warn set ... page_fault+0x25/0x50 arch/x86/entry/entry_64.S:1123 RIP: 0010:copy_user_generic_unrolled+0x9e/0xc0 arch/x86/lib/copy_user_64.S:75 RSP: 0018:ffff88823aa5f840 EFLAGS: 00010206 RAX: 0000000000040000 RBX: 0000000000000006 RCX: 0000000000000006 RDX: 0000000000000006 RSI: 0000000000a40000 RDI: ffff88823aa5f898 RBP: ffff88804df081d8 R08: 0000000000000001 R09: ffffed104754bf13 R10: ffff88823aa5f89d R11: ffff88804d8e2340 R12: ffff88804df08080 R13: 0000000000a40000 R14: 0000000000000006 R15: ffff88823aa5f898 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:55 [inline] __copy_from_user include/linux/uaccess.h:75 [inline] sg_new_write.isra.0+0x483/0x8c0 drivers/scsi/sg.c:778 sg_write.part.0+0x8b8/0xc60 drivers/scsi/sg.c:644 sg_write+0x60/0x90 drivers/scsi/sg.c:623 do_loop_readv_writev fs/read_write.c:698 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_write+0x3da/0x550 fs/read_write.c:956 vfs_writev+0x125/0x290 fs/read_write.c:999 do_writev+0xfc/0x2c0 fs/read_write.c:1034 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x4665f9 RSP: 002b:00007fb741ed9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000000000002 RSI: 0000000020000380 RDI: 0000000000000004 RBP: 00007fb741ed91d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff87b685ef R14: 00007fb741ed9300 R15: 0000000000022000 CPU: 0 PID: 23899 Comm: syz-executor.3 Not tainted 4.14.232-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+0x1b2/0x281 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: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 sg_write: data in/out 484209690/50 bytes for SCSI command 0xfe-- guessing data in; program syz-executor.0 not setting count and/or reply_len properly invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 RIP: 0010:kill_block_super+0xbe/0xe0 fs/super.c:1163 RSP: 0018:ffff88823a8b7bc8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000a1e2000 RDX: 0000000000040000 RSI: ffffffff8187278e RDI: ffff8880903b56f0 RBP: ffff88803387ebc0 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: ffff888052738400 R12: ffff8880903b5240 R13: ffffffff8907b650 R14: ffffffff88f44f40 R15: dffffc0000000000 deactivate_locked_super+0x6c/0xd0 fs/super.c:319 sget_userns+0x9c4/0xc10 fs/super.c:537 sget+0xd1/0x110 fs/super.c:572 mount_bdev+0xcd/0x360 fs/super.c:1107 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 fs/namespace.c:2879 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x467b1a RSP: 002b:00007f6a22ba1fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000467b1a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6a22ba2000 RBP: 00007f6a22ba2040 R08: 00007f6a22ba2040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f6a22ba2000 R15: 0000000020000080 Kernel Offset: disabled Rebooting in 86400 seconds..