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charset="UTF-8" syzbot has found a reproducer for the following issue on: HEAD commit: aaf20f870da0 Merge tag 'rpmsg-v6.13' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=152e71e8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=493f836b3188006b dashboard link: https://syzkaller.appspot.com/bug?extid=bb50a872bcd6dacdf184 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=100f7530580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/08102d213bca/disk-aaf20f87.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/80a985df7f54/vmlinux-aaf20f87.xz kernel image: https://storage.googleapis.com/syzbot-assets/2eccce18d2d9/bzImage-aaf20f87.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/87e2093dad2b/mount_20.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+bb50a872bcd6dacdf184@syzkaller.appspotmail.com ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 0 PID: 5975 at kernel/locking/lockdep.c:232 hlock_class kernel/locking/lockdep.c:232 [inline] WARNING: CPU: 0 PID: 5975 at kernel/locking/lockdep.c:232 check_wait_context kernel/locking/lockdep.c:4850 [inline] WARNING: CPU: 0 PID: 5975 at kernel/locking/lockdep.c:232 __lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5176 Modules linked in: CPU: 0 UID: 0 PID: 5975 Comm: syz-executor Not tainted 6.12.0-syzkaller-10296-gaaf20f870da0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:hlock_class kernel/locking/lockdep.c:232 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4850 [inline] RIP: 0010:__lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5176 Code: 00 00 83 3d 41 69 ad 0e 00 75 23 90 48 c7 c7 40 d7 0a 8c 48 c7 c6 40 da 0a 8c e8 77 63 e5 ff 48 ba 00 00 00 00 00 fc ff df 90 <0f> 0b 90 90 90 31 db 48 81 c3 c4 00 00 00 48 89 d8 48 c1 e8 03 0f RSP: 0018:ffffc90003aef890 EFLAGS: 00010046 RAX: ebff77b2920c0b00 RBX: 00000000000010d8 RCX: ffff888026515a00 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00000000000c10d8 R08: ffffffff815688b2 R09: 1ffff110170c519a R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff8880265164c4 R13: 0000000000000005 R14: 1ffff11004ca2ca5 R15: ffff888026516528 FS: 000055555f6a9500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2be16756c0 CR3: 0000000032fe0000 CR4: 0000000000350ef0 Call Trace: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598 raw_spin_rq_lock kernel/sched/sched.h:1514 [inline] __task_rq_lock+0xdf/0x3e0 kernel/sched/core.c:676 wake_up_new_task+0x513/0xc70 kernel/sched/core.c:4866 kernel_clone+0x4ee/0x8f0 kernel/fork.c:2818 __do_sys_clone kernel/fork.c:2930 [inline] __se_sys_clone kernel/fork.c:2914 [inline] __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2914 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2be0977053 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007fffce1620e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2be0977053 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 000055555f6a97d0 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000003cb79 R14: 000000000003cb07 R15: 00007fffce162270 --- 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.