------------[ cut here ]------------ Mixed NMI-safe readers for srcu_struct at 0xffffc900031ca8a8. WARNING: CPU: 1 PID: 55 at kernel/rcu/srcutree.c:453 srcu_readers_unlock_idx kernel/rcu/srcutree.c:453 [inline] WARNING: CPU: 1 PID: 55 at kernel/rcu/srcutree.c:453 srcu_readers_active_idx_check kernel/rcu/srcutree.c:466 [inline] WARNING: CPU: 1 PID: 55 at kernel/rcu/srcutree.c:453 try_check_zero+0x3aa/0x560 kernel/rcu/srcutree.c:1078 Modules linked in: CPU: 1 PID: 55 Comm: kworker/1:1 Not tainted 6.10.0-rc3-syzkaller-00022-gcea2a26553ac #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Workqueue: rcu_gp process_srcu RIP: 0010:srcu_readers_unlock_idx kernel/rcu/srcutree.c:453 [inline] RIP: 0010:srcu_readers_active_idx_check kernel/rcu/srcutree.c:466 [inline] RIP: 0010:try_check_zero+0x3aa/0x560 kernel/rcu/srcutree.c:1078 Code: e9 8a fe ff ff 80 3d 71 c2 57 0e 00 0f 85 47 fe ff ff c6 05 64 c2 57 0e 01 90 48 c7 c7 a0 46 2e 8b 4c 89 f6 e8 a7 91 dc ff 90 <0f> 0b 90 90 e9 26 fe ff ff 48 83 c4 48 31 c0 5b 5d 41 5c 41 5d 41 RSP: 0018:ffffc9000075fb70 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffffe8ffffd70500 RCX: ffffffff81511289 RDX: ffff888018f9c880 RSI: ffffffff81511296 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000003 R12: 0000000000000023 R13: dffffc0000000000 R14: ffffc900031ca8a8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88802c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000f731a024 CR3: 000000001dd08000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: srcu_advance_state kernel/rcu/srcutree.c:1684 [inline] process_srcu+0x3f9/0x1730 kernel/rcu/srcutree.c:1811 process_one_work+0x958/0x1ad0 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244