Quota error (device loop1): qtree_write_dquot: Error -28 occurred while creating quota Quota error (device loop1): write_blk: dquota write failed Quota error (device loop1): qtree_write_dquot: Error -28 occurred while creating quota BUG: unable to handle kernel paging request at fffffbfffa7df2bc IP: __read_once_size include/linux/compiler.h:183 [inline] IP: atomic_read arch/x86/include/asm/atomic.h:27 [inline] IP: dqput.part.0+0x9d/0x750 fs/quota/dquot.c:761 PGD 23fff0067 P4D 23fff0067 PUD 23ffef067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 8008 Comm: syz-executor.1 Not tainted 4.14.206-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888091e3e200 task.stack: ffff888091e40000 RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline] RIP: 0010:atomic_read arch/x86/include/asm/atomic.h:27 [inline] RIP: 0010:dqput.part.0+0x9d/0x750 fs/quota/dquot.c:761 RSP: 0018:ffff888091e47a90 EFLAGS: 00010282 RAX: dffffc0000000000 RBX: ffffffffd3ef94ee RCX: 0000000000000534 RDX: 1ffffffff11c2502 RSI: 0000000000000001 RDI: ffffffff88e12804 RBP: dffffc0000000000 R08: ffffffff8b989460 R09: 00000000000401cd R10: ffff888091e3eab0 R11: ffff888091e3e200 R12: 0000000000000009 R13: fffffbfffa7df2bc R14: ffffffffd3ef9606 R15: ffffffffd3ef95e6 FS: 0000000003542940(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbfffa7df2bc CR3: 000000008d69e000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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+0x1f1/0x1500 fs/ext4/inode.c:347 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: 0033:0x4608e7 RSP: 002b:00007fff501eaa98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 000000000003058a RCX: 00000000004608e7 RDX: 00000000004031f8 RSI: 0000000000000002 RDI: 00007fff501eab40 RBP: 0000000000000084 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000005 R11: 0000000000000246 R12: 00007fff501ebbd0 R13: 0000000003543a60 R14: 0000000000000000 R15: 00007fff501ebbd0 Code: 8d b3 18 01 00 00 49 c1 ed 03 41 83 e4 07 49 01 ed 41 83 c4 03 e8 54 d5 90 01 e8 9f 4b b7 ff 48 c7 c7 00 28 e1 88 e8 23 80 80 05 <41> 0f b6 45 00 41 38 c4 7c 08 84 c0 0f 85 cf 04 00 00 8b 83 f8 RIP: __read_once_size include/linux/compiler.h:183 [inline] RSP: ffff888091e47a90 RIP: atomic_read arch/x86/include/asm/atomic.h:27 [inline] RSP: ffff888091e47a90 RIP: dqput.part.0+0x9d/0x750 fs/quota/dquot.c:761 RSP: ffff888091e47a90 CR2: fffffbfffa7df2bc ---[ end trace fb05c40fb0cad98c ]---