Hello, syzbot found the following issue on: HEAD commit: fcc79e1714e8 Merge tag 'net-next-6.13' of git://git.kernel.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=148d675f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=2c04b80691ccbb7 dashboard link: https://syzkaller.appspot.com/bug?extid=2c02da94a158ca39fcc0 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/f68aa5d85643/disk-fcc79e17.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ad99781945ae/vmlinux-fcc79e17.xz kernel image: https://storage.googleapis.com/syzbot-assets/4c4059c60213/bzImage-fcc79e17.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+2c02da94a158ca39fcc0@xxxxxxxxxxxxxxxxxxxxxxxxx ============================= [ BUG: Invalid wait context ] 6.12.0-syzkaller-05480-gfcc79e1714e8 #0 Not tainted ----------------------------- syz.1.233/6687 is trying to lock: ffffffff8e39fbd8 (stack_list_lock){-.-.}-{3:3}, at: add_stack_record_to_list mm/page_owner.c:182 [inline] ffffffff8e39fbd8 (stack_list_lock){-.-.}-{3:3}, at: inc_stack_record_count mm/page_owner.c:214 [inline] ffffffff8e39fbd8 (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} 1 lock held by syz.1.233/6687: #0: ffff88807a2cf110 (&u->iolock){+.+.}-{4:4}, at: __unix_dgram_recvmsg+0x267/0xe50 net/unix/af_unix.c:2432 stack backtrace: CPU: 1 UID: 0 PID: 6687 Comm: syz.1.233 Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Call Trace: <IRQ> __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 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 __unix_dgram_recvmsg+0x1d1/0xe50 net/unix/af_unix.c:2435 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
