oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=syz1,mems_allowed=0-1,oom_memcg=/syz1,task_memcg=/syz1,task=syz-executor.1,pid=3629,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: 3629, name: syz-executor.1 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.1/3629: #0: ffffffff8bce23c0 (memcg_oom_lock#2){+.+.}-{0:0}, at: mem_cgroup_oom mm/memcontrol.c:1846 [inline] #0: ffffffff8bce23c0 (memcg_oom_lock#2){+.+.}-{0:0}, at: try_charge_memcg+0xafd/0x10f0 mm/memcontrol.c:2647 #1: ffffffff8bc645a8 (oom_lock){+.+.}-{3:3}, at: mem_cgroup_out_of_memory+0x8d/0x270 mm/memcontrol.c:1607 #2: ffff888022268960 (&p->alloc_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] #2: ffff888022268960 (&p->alloc_lock){+.+.}-{2:2}, at: task_lock include/linux/sched/task.h:170 [inline] #2: ffff888022268960 (&p->alloc_lock){+.+.}-{2:2}, at: find_lock_task_mm+0xe3/0x2b0 mm/oom_kill.c:144 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 PID: 3629 Comm: syz-executor.1 Not tainted 5.17.0-rc1-next-20220124-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 __might_resched.cold+0x222/0x26b kernel/sched/core.c:9576 __mutex_lock_common kernel/locking/mutex.c:577 [inline] __mutex_lock+0x9f/0x12f0 kernel/locking/mutex.c:733 futex_cleanup_begin kernel/futex/core.c:1058 [inline] futex_exit_release+0x26/0x220 kernel/futex/core.c:1110 __oom_kill_process+0x373/0xf90 mm/oom_kill.c:893 oom_kill_process+0xd7/0x5b0 mm/oom_kill.c:1003 out_of_memory+0x358/0x14b0 mm/oom_kill.c:1132 mem_cgroup_out_of_memory+0x206/0x270 mm/memcontrol.c:1617 mem_cgroup_oom mm/memcontrol.c:1852 [inline] try_charge_memcg+0xd79/0x10f0 mm/memcontrol.c:2647 obj_cgroup_charge_pages+0x1e/0x90 mm/memcontrol.c:3017 obj_cgroup_charge+0xf3/0x280 mm/memcontrol.c:3286 memcg_slab_pre_alloc_hook mm/slab.h:490 [inline] slab_pre_alloc_hook mm/slab.h:710 [inline] slab_alloc_node mm/slub.c:3144 [inline] slab_alloc mm/slub.c:3238 [inline] kmem_cache_alloc+0x92/0x3a0 mm/slub.c:3243 sk_prot_alloc+0x5f/0x290 net/core/sock.c:1917 sk_alloc+0x32/0xa80 net/core/sock.c:1976 inet6_create net/ipv6/af_inet6.c:184 [inline] inet6_create+0x36f/0x1030 net/ipv6/af_inet6.c:111 __sock_create+0x353/0x790 net/socket.c:1468 sock_create net/socket.c:1519 [inline] __sys_socket+0xef/0x200 net/socket.c:1561 __do_sys_socket net/socket.c:1570 [inline] __se_sys_socket net/socket.c:1568 [inline] __x64_sys_socket+0x6f/0xb0 net/socket.c:1568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f07afe1f6d7 Code: f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc31d78e58 EFLAGS: 00000206 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 0000000000000029 RCX: 00007f07afe1f6d7 RDX: 0000000000000006 RSI: 0000000000000001 RDI: 000000000000000a RBP: 00007ffc31d78e80 R08: 0000000000000000 R09: ff78736871746264 R10: 0000000000000010 R11: 0000000000000206 R12: 0000000000000032 R13: 0000000000036839 R14: 0000000000000002 R15: 00007f07afeffb60 ============================= [ BUG: Invalid wait context ] 5.17.0-rc1-next-20220124-syzkaller #0 Tainted: G W ----------------------------- syz-executor.1/3629 is trying to lock: ffff888022269380 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_cleanup_begin kernel/futex/core.c:1058 [inline] ffff888022269380 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_exit_release+0x26/0x220 kernel/futex/core.c:1110 other info that might help us debug this: context-{4:4} 3 locks held by syz-executor.1/3629: #0: ffffffff8bce23c0 (memcg_oom_lock#2){+.+.}-{0:0}, at: mem_cgroup_oom mm/memcontrol.c:1846 [inline] #0: ffffffff8bce23c0 (memcg_oom_lock#2){+.+.}-{0:0}, at: try_charge_memcg+0xafd/0x10f0 mm/memcontrol.c:2647 #1: ffffffff8bc645a8 (oom_lock){+.+.}-{3:3}, at: mem_cgroup_out_of_memory+0x8d/0x270 mm/memcontrol.c:1607 #2: ffff888022268960 (&p->alloc_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] #2: ffff888022268960 (&p->alloc_lock){+.+.}-{2:2}, at: task_lock include/linux/sched/task.h:170 [inline] #2: ffff888022268960 (&p->alloc_lock){+.+.}-{2:2}, at: find_lock_task_mm+0xe3/0x2b0 mm/oom_kill.c:144 stack backtrace: CPU: 1 PID: 3629 Comm: syz-executor.1 Tainted: G W 5.17.0-rc1-next-20220124-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 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+0x213/0x3ab kernel/locking/lockdep.c:4977 lock_acquire kernel/locking/lockdep.c:5639 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5604 __mutex_lock_common kernel/locking/mutex.c:600 [inline] __mutex_lock+0x12f/0x12f0 kernel/locking/mutex.c:733 futex_cleanup_begin kernel/futex/core.c:1058 [inline] futex_exit_release+0x26/0x220 kernel/futex/core.c:1110 __oom_kill_process+0x373/0xf90 mm/oom_kill.c:893 oom_kill_process+0xd7/0x5b0 mm/oom_kill.c:1003 out_of_memory+0x358/0x14b0 mm/oom_kill.c:1132 mem_cgroup_out_of_memory+0x206/0x270 mm/memcontrol.c:1617 mem_cgroup_oom mm/memcontrol.c:1852 [inline] try_charge_memcg+0xd79/0x10f0 mm/memcontrol.c:2647 obj_cgroup_charge_pages+0x1e/0x90 mm/memcontrol.c:3017 obj_cgroup_charge+0xf3/0x280 mm/memcontrol.c:3286 memcg_slab_pre_alloc_hook mm/slab.h:490 [inline] slab_pre_alloc_hook mm/slab.h:710 [inline] slab_alloc_node mm/slub.c:3144 [inline] slab_alloc mm/slub.c:3238 [inline] kmem_cache_alloc+0x92/0x3a0 mm/slub.c:3243 sk_prot_alloc+0x5f/0x290 net/core/sock.c:1917 sk_alloc+0x32/0xa80 net/core/sock.c:1976 inet6_create net/ipv6/af_inet6.c:184 [inline] inet6_create+0x36f/0x1030 net/ipv6/af_inet6.c:111 __sock_create+0x353/0x790 net/socket.c:1468 sock_create net/socket.c:1519 [inline] __sys_socket+0xef/0x200 net/socket.c:1561 __do_sys_socket net/socket.c:1570 [inline] __se_sys_socket net/socket.c:1568 [inline] __x64_sys_socket+0x6f/0xb0 net/socket.c:1568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f07afe1f6d7 Code: f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc31d78e58 EFLAGS: 00000206 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 0000000000000029 RCX: 00007f07afe1f6d7 RDX: 0000000000000006 RSI: 0000000000000001 RDI: 000000000000000a RBP: 00007ffc31d78e80 R08: 0000000000000000 R09: ff78736871746264 R10: 0000000000000010 R11: 0000000000000206 R12: 0000000000000032 R13: 0000000000036839 R14: 0000000000000002 R15: 00007f07afeffb60 Memory cgroup out of memory: Killed process 3629 (syz-executor.1) total-vm:56676kB, anon-rss:388kB, file-rss:15240kB, shmem-rss:4kB, UID:0 pgtables:84kB oom_score_adj:0