============================= [ BUG: Invalid wait context ] 6.13.0-rc1-syzkaller-00005-gceb8bf2ceaa7 #0 Not tainted ----------------------------- syz.0.15/6016 is trying to lock: ffffffff8e3a2778 (stack_list_lock){-.-.}-{3:3}, at: add_stack_record_to_list mm/page_owner.c:182 [inline] ffffffff8e3a2778 (stack_list_lock){-.-.}-{3:3}, at: inc_stack_record_count mm/page_owner.c:214 [inline] ffffffff8e3a2778 (stack_list_lock){-.-.}-{3:3}, at: __set_page_owner+0x3ea/0x560 mm/page_owner.c:329 other info that might help us debug this: context-{2:2} no locks held by syz.0.15/6016. stack backtrace: CPU: 0 UID: 0 PID: 6016 Comm: syz.0.15 Not tainted 6.13.0-rc1-syzkaller-00005-gceb8bf2ceaa7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_lock_invalid_wait_context kernel/locking/lockdep.c:4826 [inline] check_wait_context kernel/locking/lockdep.c:4898 [inline] __lock_acquire+0x878/0x3c40 kernel/locking/lockdep.c:5176 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162 add_stack_record_to_list mm/page_owner.c:182 [inline] inc_stack_record_count mm/page_owner.c:214 [inline] __set_page_owner+0x3ea/0x560 mm/page_owner.c:329 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3474 __alloc_pages_noprof+0x223/0x25b0 mm/page_alloc.c:4751 alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2265 stack_depot_save_flags+0x566/0x8f0 lib/stackdepot.c:627 kasan_save_stack+0x42/0x60 mm/kasan/common.c:48 __kasan_record_aux_stack+0xba/0xd0 mm/kasan/generic.c:544 task_work_add+0xc0/0x3b0 kernel/task_work.c:77 __run_posix_cpu_timers kernel/time/posix-cpu-timers.c:1223 [inline] run_posix_cpu_timers+0x69f/0x7d0 kernel/time/posix-cpu-timers.c:1422 update_process_times+0x1a1/0x2d0 kernel/time/timer.c:2526 tick_sched_handle kernel/time/tick-sched.c:276 [inline] tick_nohz_handler+0x376/0x530 kernel/time/tick-sched.c:297 __run_hrtimer kernel/time/hrtimer.c:1739 [inline] __hrtimer_run_queues+0x5fb/0xae0 kernel/time/hrtimer.c:1803 hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1865 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:obj_cgroup_charge+0x143/0x4d0 mm/memcontrol.c:2905 Code: 0f 85 10 03 00 00 48 03 1c c5 e0 2b a7 8d 48 89 df e8 71 ef fe ff 4d 85 e4 0f 85 0b 01 00 00 9c 58 f6 c4 02 0f 85 05 02 00 00 <45> 84 ff 0f 85 ef 00 00 00 49 89 ef 81 e5 ff 0f 00 00 4c 89 ef 49 RSP: 0018:ffffc9000449fbd8 EFLAGS: 00000246 RAX: 0000000000000002 RBX: ffff8880b8639a20 RCX: 1ffffffff20bd839 RDX: 0000000000000000 RSI: ffffffff8b6cd840 RDI: ffffffff8bd1b460 RBP: 0000000000000848 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff905f0417 R11: 0000000000000000 R12: 0000000000000200 R13: ffff888033b3f680 R14: 0000000000000cc0 R15: 0000000000000001 __memcg_slab_post_alloc_hook+0x1b6/0x9b0 mm/memcontrol.c:2998 memcg_slab_post_alloc_hook mm/slub.c:2152 [inline] slab_post_alloc_hook mm/slub.c:4114 [inline] slab_alloc_node mm/slub.c:4153 [inline] kmem_cache_alloc_noprof+0x366/0x3d0 mm/slub.c:4160 sk_prot_alloc+0x60/0x2a0 net/core/sock.c:2159 sk_alloc+0x36/0xb90 net/core/sock.c:2218 unix_create1+0xa6/0x6c0 net/unix/af_unix.c:1024 unix_create+0x10e/0x1d0 net/unix/af_unix.c:1094 __sock_create+0x335/0x8d0 net/socket.c:1558 sock_create net/socket.c:1616 [inline] __sys_socketpair+0x25d/0x5a0 net/socket.c:1767 __do_sys_socketpair net/socket.c:1816 [inline] __se_sys_socketpair net/socket.c:1813 [inline] __x64_sys_socketpair+0x96/0x100 net/socket.c:1813 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2d4c77ff19 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2d4d55e058 EFLAGS: 00000246 ORIG_RAX: 0000000000000035 RAX: ffffffffffffffda RBX: 00007f2d4c946160 RCX: 00007f2d4c77ff19 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 RBP: 00007f2d4c7f3986 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000500 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f2d4c946160 R15: 00007ffd17c39ee8 ---------------- Code disassembly (best guess): 0: 0f 85 10 03 00 00 jne 0x316 6: 48 03 1c c5 e0 2b a7 add -0x7258d420(,%rax,8),%rbx d: 8d e: 48 89 df mov %rbx,%rdi 11: e8 71 ef fe ff call 0xfffeef87 16: 4d 85 e4 test %r12,%r12 19: 0f 85 0b 01 00 00 jne 0x12a 1f: 9c pushf 20: 58 pop %rax 21: f6 c4 02 test $0x2,%ah 24: 0f 85 05 02 00 00 jne 0x22f * 2a: 45 84 ff test %r15b,%r15b <-- trapping instruction 2d: 0f 85 ef 00 00 00 jne 0x122 33: 49 89 ef mov %rbp,%r15 36: 81 e5 ff 0f 00 00 and $0xfff,%ebp 3c: 4c 89 ef mov %r13,%rdi 3f: 49 rex.WB