Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: INFO: rcu detected stall in corrupted rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4122 } 2641 jiffies s: 2877 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: bce93322 proc: proc_skip_spaces() shouldn't think it i.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master console output: https://syzkaller.appspot.com/x/log.txt?x=1566216b880000 kernel config: https://syzkaller.appspot.com/x/.config?x=d58e7fe7f9cf5e24 dashboard link: https://syzkaller.appspot.com/bug?extid=912776840162c13db1a3 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=164cad83880000