Re: [syzbot] [bpf?] [net?] possible deadlock in rcu_report_exp_cpu_mult

From: syzbot
Date: Fri Mar 22 2024 - 06:56:10 EST


Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+c4f4d25859c2e5859988@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: ddb2ffdc libbpf: Define MFD_CLOEXEC if not available
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=170141a5180000
kernel config: https://syzkaller.appspot.com/x/.config?x=6fb1be60a193d440
dashboard link: https://syzkaller.appspot.com/bug?extid=c4f4d25859c2e5859988
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=14b44711180000

Note: testing is done by a robot and is best-effort only.