BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor.1/5775 caller is __pv_queued_spin_lock_slowpath+0x272/0xc80 kernel/locking/qspinlock.c:565 CPU: 1 PID: 5775 Comm: syz-executor.1 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:114 check_preemption_disabled+0xd0/0xe0 lib/smp_processor_id.c:49 __pv_queued_spin_lock_slowpath+0x272/0xc80 kernel/locking/qspinlock.c:565 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] lockdep_lock+0x1b8/0x200 kernel/locking/lockdep.c:144 graph_lock kernel/locking/lockdep.c:170 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:3804 [inline] validate_chain kernel/locking/lockdep.c:3837 [inline] __lock_acquire+0x15a8/0x3b30 kernel/locking/lockdep.c:5137 lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719 __might_fault mm/memory.c:6080 [inline] __might_fault+0x11b/0x190 mm/memory.c:6073 _copy_from_iter+0x1c4/0x1110 lib/iov_iter.c:259 copy_from_iter include/linux/uio.h:204 [inline] kernfs_fop_write_iter+0x1a3/0x500 fs/kernfs/file.c:315 call_write_iter include/linux/fs.h:2108 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6de/0x1100 fs/read_write.c:590 ksys_write+0x12f/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f2e4ea7de69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2e4f7ab0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f2e4ebabf80 RCX: 00007f2e4ea7de69 RDX: 0000000000000012 RSI: 0000000020000380 RDI: 0000000000000004 RBP: 00007f2e4eaca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f2e4ebabf80 R15: 00007ffd0de416f8 ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(!irqs_disabled()) WARNING: CPU: 1 PID: 5775 at kernel/locking/lockdep.c:150 lockdep_unlock+0x1c1/0x290 kernel/locking/lockdep.c:150 Modules linked in: CPU: 1 PID: 5775 Comm: syz-executor.1 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:lockdep_unlock+0x1c1/0x290 kernel/locking/lockdep.c:150 Code: d0 7c 08 84 d2 0f 85 cc 00 00 00 8b 35 8c d2 33 0e 85 f6 75 19 90 48 c7 c6 e0 c7 0c 8b 48 c7 c7 60 c7 0c 8b e8 10 4e e5 ff 90 <0f> 0b 90 90 90 e9 80 fe ff ff 90 0f 0b 90 e8 0c b6 0a 03 85 c0 74 RSP: 0018:ffffc9000329f940 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffffffff9469aaa0 RCX: ffffc9000996a000 RDX: 0000000000040000 RSI: ffffffff8150f3f6 RDI: 0000000000000001 RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888020288000 R13: ffffffff9400a9b8 R14: ffff888020288b28 R15: 0000000000000001 FS: 00007f2e4f7ab6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2e4eada5b2 CR3: 0000000062612000 CR4: 0000000000350ef0 Call Trace: graph_unlock kernel/locking/lockdep.c:186 [inline] validate_chain kernel/locking/lockdep.c:3873 [inline] __lock_acquire+0x1fb0/0x3b30 kernel/locking/lockdep.c:5137 lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719 __might_fault mm/memory.c:6080 [inline] __might_fault+0x11b/0x190 mm/memory.c:6073 _copy_from_iter+0x1c4/0x1110 lib/iov_iter.c:259 copy_from_iter include/linux/uio.h:204 [inline] kernfs_fop_write_iter+0x1a3/0x500 fs/kernfs/file.c:315 call_write_iter include/linux/fs.h:2108 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6de/0x1100 fs/read_write.c:590 ksys_write+0x12f/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f2e4ea7de69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2e4f7ab0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f2e4ebabf80 RCX: 00007f2e4ea7de69 RDX: 0000000000000012 RSI: 0000000020000380 RDI: 0000000000000004 RBP: 00007f2e4eaca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f2e4ebabf80 R15: 00007ffd0de416f8