pgfault 90201
pgmajfault 0
pgrefill 56
pgscan 53
oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=syz0,mems_allowed=0,oom_memcg=/syz0,task_memcg=/syz0,task=syz-executor.0,pid=5008,uid=0
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:577
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6201, name: syz-executor.0
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
4 locks held by syz-executor.0/6201:
 #0: ffff88800d0e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
 #0: ffff88800d0e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: __mm_populate+0x264/0x3e0 mm/gup.c:1586
 #1: ffffffff852b6f60 (memcg_oom_lock#2){+.+.}-{0:0}, at: mem_cgroup_oom mm/memcontrol.c:1846 [inline]
 #1: ffffffff852b6f60 (memcg_oom_lock#2){+.+.}-{0:0}, at: try_charge_memcg+0xa49/0x1080 mm/memcontrol.c:2647
 #2: ffffffff85278828 (oom_lock){+.+.}-{3:3}, at: mem_cgroup_out_of_memory+0x96/0x250 mm/memcontrol.c:1607
 #3: ffff88803f9ea360 (&p->alloc_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline]
 #3: ffff88803f9ea360 (&p->alloc_lock){+.+.}-{2:2}, at: task_lock include/linux/sched/task.h:170 [inline]
 #3: ffff88803f9ea360 (&p->alloc_lock){+.+.}-{2:2}, at: find_lock_task_mm+0xe3/0x2b0 mm/oom_kill.c:144
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 PID: 6201 Comm: syz-executor.0 Not tainted 5.16.0-next-20220112 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106
 __might_resched.cold+0x222/0x26b kernel/sched/core.c:9583
 __mutex_lock_common kernel/locking/mutex.c:577 [inline]
 __mutex_lock+0x9e/0x1480 kernel/locking/mutex.c:733
 futex_cleanup_begin kernel/futex/core.c:1058 [inline]
 futex_exit_release+0x2d/0x220 kernel/futex/core.c:1110
 __oom_kill_process+0x373/0xf90 mm/oom_kill.c:893
 oom_kill_process+0xd7/0x5c0 mm/oom_kill.c:1003
 out_of_memory+0x358/0x1460 mm/oom_kill.c:1132
 mem_cgroup_out_of_memory+0x1e5/0x250 mm/memcontrol.c:1617
 mem_cgroup_oom mm/memcontrol.c:1852 [inline]
 try_charge_memcg+0xcd4/0x1080 mm/memcontrol.c:2647
 try_charge mm/memcontrol.c:2724 [inline]
 charge_memcg+0x24d/0x360 mm/memcontrol.c:6687
 __mem_cgroup_charge+0x24/0x80 mm/memcontrol.c:6708
 mem_cgroup_charge include/linux/memcontrol.h:667 [inline]
 do_anonymous_page mm/memory.c:3783 [inline]
 handle_pte_fault mm/memory.c:4568 [inline]
 __handle_mm_fault+0x1074/0x3570 mm/memory.c:4705
 handle_mm_fault+0x2e6/0xa20 mm/memory.c:4803
 faultin_page mm/gup.c:944 [inline]
 __get_user_pages+0x522/0x1120 mm/gup.c:1165
 populate_vma_page_range+0x24d/0x330 mm/gup.c:1497
 __mm_populate+0x1ea/0x3e0 mm/gup.c:1606
 do_mlock+0x291/0x6b0 mm/mlock.c:689
 __do_sys_mlock mm/mlock.c:697 [inline]
 __se_sys_mlock mm/mlock.c:695 [inline]
 __x64_sys_mlock+0x55/0x80 mm/mlock.c:695
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f0ec3a8eb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0ec1004188 EFLAGS: 00000246 ORIG_RAX: 0000000000000095
RAX: ffffffffffffffda RBX: 00007f0ec3ba1f60 RCX: 00007f0ec3a8eb19
RDX: 0000000000000000 RSI: 0000000000c00000 RDI: 0000000020400000
RBP: 00007f0ec3ae8f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdfea2d04f R14: 00007f0ec1004300 R15: 0000000000022000
 </TASK>

=============================
[ BUG: Invalid wait context ]
5.16.0-next-20220112 #1 Tainted: G        W        
-----------------------------
syz-executor.0/6201 is trying to lock:
ffff88803f9ead70 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_cleanup_begin kernel/futex/core.c:1058 [inline]
ffff88803f9ead70 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_exit_release+0x2d/0x220 kernel/futex/core.c:1110
other info that might help us debug this:
context-{4:4}
4 locks held by syz-executor.0/6201:
 #0: ffff88800d0e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
 #0: ffff88800d0e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: __mm_populate+0x264/0x3e0 mm/gup.c:1586
 #1: ffffffff852b6f60 (memcg_oom_lock#2){+.+.}-{0:0}, at: mem_cgroup_oom mm/memcontrol.c:1846 [inline]
 #1: ffffffff852b6f60 (memcg_oom_lock#2){+.+.}-{0:0}, at: try_charge_memcg+0xa49/0x1080 mm/memcontrol.c:2647
 #2: ffffffff85278828 (oom_lock){+.+.}-{3:3}, at: mem_cgroup_out_of_memory+0x96/0x250 mm/memcontrol.c:1607
 #3: ffff88803f9ea360 (&p->alloc_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline]
 #3: ffff88803f9ea360 (&p->alloc_lock){+.+.}-{2:2}, at: task_lock include/linux/sched/task.h:170 [inline]
 #3: ffff88803f9ea360 (&p->alloc_lock){+.+.}-{2:2}, at: find_lock_task_mm+0xe3/0x2b0 mm/oom_kill.c:144
stack backtrace:
CPU: 0 PID: 6201 Comm: syz-executor.0 Tainted: G        W         5.16.0-next-20220112 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106
 print_lock_invalid_wait_context kernel/locking/lockdep.c:4678 [inline]
 check_wait_context kernel/locking/lockdep.c:4739 [inline]
 __lock_acquire.cold+0xc8/0x3b4 kernel/locking/lockdep.c:4977
 lock_acquire kernel/locking/lockdep.c:5639 [inline]
 lock_acquire+0x1a2/0x4d0 kernel/locking/lockdep.c:5604
 __mutex_lock_common kernel/locking/mutex.c:600 [inline]
 __mutex_lock+0x136/0x1480 kernel/locking/mutex.c:733
 futex_cleanup_begin kernel/futex/core.c:1058 [inline]
 futex_exit_release+0x2d/0x220 kernel/futex/core.c:1110
 __oom_kill_process+0x373/0xf90 mm/oom_kill.c:893
 oom_kill_process+0xd7/0x5c0 mm/oom_kill.c:1003
 out_of_memory+0x358/0x1460 mm/oom_kill.c:1132
 mem_cgroup_out_of_memory+0x1e5/0x250 mm/memcontrol.c:1617
 mem_cgroup_oom mm/memcontrol.c:1852 [inline]
 try_charge_memcg+0xcd4/0x1080 mm/memcontrol.c:2647
 try_charge mm/memcontrol.c:2724 [inline]
 charge_memcg+0x24d/0x360 mm/memcontrol.c:6687
 __mem_cgroup_charge+0x24/0x80 mm/memcontrol.c:6708
 mem_cgroup_charge include/linux/memcontrol.h:667 [inline]
 do_anonymous_page mm/memory.c:3783 [inline]
 handle_pte_fault mm/memory.c:4568 [inline]
 __handle_mm_fault+0x1074/0x3570 mm/memory.c:4705
 handle_mm_fault+0x2e6/0xa20 mm/memory.c:4803
 faultin_page mm/gup.c:944 [inline]
 __get_user_pages+0x522/0x1120 mm/gup.c:1165
 populate_vma_page_range+0x24d/0x330 mm/gup.c:1497
 __mm_populate+0x1ea/0x3e0 mm/gup.c:1606
 do_mlock+0x291/0x6b0 mm/mlock.c:689
 __do_sys_mlock mm/mlock.c:697 [inline]
 __se_sys_mlock mm/mlock.c:695 [inline]
 __x64_sys_mlock+0x55/0x80 mm/mlock.c:695
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f0ec3a8eb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0ec1004188 EFLAGS: 00000246 ORIG_RAX: 0000000000000095
RAX: ffffffffffffffda RBX: 00007f0ec3ba1f60 RCX: 00007f0ec3a8eb19
RDX: 0000000000000000 RSI: 0000000000c00000 RDI: 0000000020400000
RBP: 00007f0ec3ae8f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdfea2d04f R14: 00007f0ec1004300 R15: 0000000000022000
 </TASK>
Memory cgroup out of memory: Killed process 5008 (syz-executor.0) total-vm:93544kB, anon-rss:12724kB, file-rss:34816kB, shmem-rss:0kB, UID:0 pgtables:156kB oom_score_adj:1000
oom_reaper: reaped process 5008 (syz-executor.0), now anon-rss:0kB, file-rss:34816kB, shmem-rss:0kB
loop1: detected capacity change from 0 to 512
loop4: detected capacity change from 0 to 512
EXT4-fs (loop4): mounted filesystem without journal. Quota mode: none.
EXT4-fs error (device loop4): __ext4_new_inode:1071: comm syz-executor.4: reserved inode found cleared - inode=3
EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none.
loop7: detected capacity change from 0 to 512
EXT4-fs error (device loop1): __ext4_new_inode:1071: comm syz-executor.1: reserved inode found cleared - inode=3
loop3: detected capacity change from 0 to 240
loop5: detected capacity change from 0 to 512
loop4: detected capacity change from 0 to 512
EXT4-fs (loop4): mounted filesystem without journal. Quota mode: none.
EXT4-fs error (device loop4): __ext4_new_inode:1071: comm syz-executor.4: reserved inode found cleared - inode=3
isofs_fill_super: bread failed, dev=loop3, iso_blknum=60, block=120
EXT4-fs (loop7): corrupt root inode, run e2fsck
EXT4-fs (loop7): mount failed
loop6: detected capacity change from 0 to 512
EXT4-fs (loop5): mounted filesystem without journal. Quota mode: none.
EXT4-fs error (device loop5): __ext4_new_inode:1071: comm syz-executor.5: reserved inode found cleared - inode=3
loop1: detected capacity change from 0 to 512
EXT4-fs (loop6): mounted filesystem without journal. Quota mode: none.
loop4: detected capacity change from 0 to 512
EXT4-fs error (device loop6): __ext4_new_inode:1071: comm syz-executor.6: reserved inode found cleared - inode=3
EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none.
EXT4-fs error (device loop1): __ext4_new_inode:1071: comm syz-executor.1: reserved inode found cleared - inode=3
EXT4-fs (loop4): mounted filesystem without journal. Quota mode: none.
EXT4-fs error (device loop4): __ext4_new_inode:1071: comm syz-executor.4: reserved inode found cleared - inode=3