syzbot has found a reproducer for the following issue on: HEAD commit: bcde95ce32b6 Merge tag 'devicetree-fixes-for-6.13-1' of gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14b65f30580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6a2b862bf4a5409f dashboard link: https://syzkaller.appspot.com/bug?extid=56dc65adbd1d2ae1f844 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12835fe8580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11cc58c4580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-bcde95ce.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/add1e48e5cb3/vmlinux-bcde95ce.xz kernel image: https://storage.googleapis.com/syzbot-assets/0db0a85c546b/bzImage-bcde95ce.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+56dc65adbd1d2ae1f844@xxxxxxxxxxxxxxxxxxxxxxxxx ============================= [ BUG: Invalid wait context ] 6.13.0-rc3-syzkaller-00301-gbcde95ce32b6 #0 Not tainted ----------------------------- syz-executor595/5435 is trying to lock: ffffffff8ea6bab8 (stack_list_lock){-.-.}-{3:3}, at: add_stack_record_to_list mm/page_owner.c:182 [inline] ffffffff8ea6bab8 (stack_list_lock){-.-.}-{3:3}, at: inc_stack_record_count mm/page_owner.c:214 [inline] ffffffff8ea6bab8 (stack_list_lock){-.-.}-{3:3}, at: __set_page_owner+0x5cb/0x800 mm/page_owner.c:329 other info that might help us debug this: context-{2:2} no locks held by syz-executor595/5435. stack backtrace: CPU: 0 UID: 0 PID: 5435 Comm: syz-executor595 Not tainted 6.13.0-rc3-syzkaller-00301-gbcde95ce32b6 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 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+0x15a8/0x2100 kernel/locking/lockdep.c:5176 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 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+0x5cb/0x800 mm/page_owner.c:329 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1558 prep_new_page mm/page_alloc.c:1566 [inline] get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3476 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4753 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2269 stack_depot_save_flags+0x72d/0x940 lib/stackdepot.c:627 kasan_save_stack+0x4f/0x60 mm/kasan/common.c:48 __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:544 task_work_add+0xd9/0x490 kernel/task_work.c:77 __run_posix_cpu_timers kernel/time/posix-cpu-timers.c:1223 [inline] run_posix_cpu_timers+0x6ac/0x810 kernel/time/posix-cpu-timers.c:1422 tick_sched_handle kernel/time/tick-sched.c:276 [inline] tick_nohz_handler+0x37c/0x500 kernel/time/tick-sched.c:297 __run_hrtimer kernel/time/hrtimer.c:1739 [inline] __hrtimer_run_queues+0x551/0xd30 kernel/time/hrtimer.c:1803 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0033:0x7f8ad0899707 Code: ff ff ff e9 80 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 53 ba 10 00 00 00 be 03 00 00 00 bf 10 00 00 00 48 81 ec 50 10 00 00 <e8> 24 2d 04 00 83 f8 ff 74 17 89 c3 48 89 e7 31 c9 31 d2 89 c6 e8 RSP: 002b:00007f8ad0083110 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 00007f8ad09641a8 RCX: 00007f8ad08da7a9 RDX: 0000000000000010 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 00007f8ad09641a0 R08: 0000000000000000 R09: 00007f8ad00846c0 R10: 00007f8ad00846c0 R11: 0000000000000246 R12: 00007f8ad09641ac R13: 000000000000000b R14: 00007ffe1da98cf0 R15: 00007ffe1da98dd8 </TASK> --- If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing.
