------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:988! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 8010 Comm: syz-executor.5 Not tainted 4.14.230-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888049d503c0 task.stack: ffff888049d58000 RIP: 0010:ext4_getblk+0x36b/0x3f0 fs/ext4/inode.c:988 RSP: 0018:ffff888049d5f400 EFLAGS: 00010297 RAX: ffff888049d503c0 RBX: 1ffff110093abe82 RCX: 0000000000000021 RDX: 0000000000000000 RSI: ffff8880431477b0 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000002400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000021 R13: 0000000000000000 R14: ffff8880431477b0 R15: 0000000000000009 FS: 00000000026a4400(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 EXT4-fs (loop4): Unrecognized mount option " VO1G w ihz%y.p2ȺI%U] K¶(aLhsΥpBn`ZGFgv7g٭ZMOػsV}.b7˩[Jxͪ̍ʨ*ŠQ7ѩRqFcQ" or missing value CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000970004 CR3: 0000000049d36000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_bread+0x6c/0x1a0 fs/ext4/inode.c:1042 ext4_quota_write+0x1dd/0x490 fs/ext4/super.c:5880 write_blk+0x106/0x1e0 fs/quota/quota_tree.c:72 remove_free_dqentry+0x1d5/0x440 fs/quota/quota_tree.c:168 free_dqentry fs/quota/quota_tree.c:436 [inline] remove_tree+0xd5b/0x1310 fs/quota/quota_tree.c:491 remove_tree+0x230/0x1310 fs/quota/quota_tree.c:494 remove_tree+0x230/0x1310 fs/quota/quota_tree.c:494 remove_tree+0x230/0x1310 fs/quota/quota_tree.c:494 qtree_delete_dquot fs/quota/quota_tree.c:527 [inline] qtree_release_dquot fs/quota/quota_tree.c:673 [inline] qtree_release_dquot+0x145/0x180 fs/quota/quota_tree.c:669 v2_release_dquot+0xce/0x120 fs/quota/quota_v2.c:375 dquot_release+0x17a/0x380 fs/quota/dquot.c:497 ext4_release_dquot+0x1f6/0x260 fs/ext4/super.c:5554 dqput.part.0+0x157/0x750 fs/quota/dquot.c:790 dqput fs/quota/dquot.c:748 [inline] dqput_all fs/quota/dquot.c:391 [inline] __dquot_drop+0x193/0x250 fs/quota/dquot.c:1564 dquot_drop fs/quota/dquot.c:1589 [inline] dquot_drop+0x13e/0x190 fs/quota/dquot.c:1567 ext4_clear_inode+0x31/0x1d0 fs/ext4/super.c:1110 ext4_evict_inode+0x1f1/0x1530 fs/ext4/inode.c:356 evict+0x2c8/0x700 fs/inode.c:555 dispose_list+0x109/0x1e0 fs/inode.c:590 evict_inodes+0x2cd/0x3a0 fs/inode.c:640 generic_shutdown_super+0xb3/0x370 fs/super.c:438 kill_block_super+0x95/0xe0 fs/super.c:1161 deactivate_locked_super+0x6c/0xd0 fs/super.c:319 deactivate_super+0x7f/0xa0 fs/super.c:350 cleanup_mnt+0x186/0x2c0 fs/namespace.c:1183 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: 0033:0x4678b7 RSP: 002b:00007ffce234a5f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000004678b7 RDX: 00007ffce234a6cb RSI: 0000000000000002 RDI: 00007ffce234a6c0 RBP: 00007ffce234a6c0 R08: 00000000ffffffff R09: 00007ffce234a490 R10: 00000000026a58e3 R11: 0000000000000246 R12: 00000000004bebb2 R13: 00007ffce234b790 R14: 00000000026a5810 R15: 00007ffce234b7d0 Code: ff 4c 89 e7 e8 27 38 d8 ff e9 47 fe ff ff 89 04 24 e8 7a f2 9a ff 4c 89 e7 e8 62 38 d8 ff 8b 04 24 e9 1f ff ff ff e8 65 f2 9a ff <0f> 0b 48 89 34 24 e8 ea 96 c4 ff 48 8b 34 24 e9 80 fd ff ff 48 RIP: ext4_getblk+0x36b/0x3f0 fs/ext4/inode.c:988 RSP: ffff888049d5f400 ---[ end trace c6e7b8bab5cab0ed ]---