Re: [syzbot] [bcachefs?] [rcu?] BUG: unable to handle kernel NULL pointer dereference in rcu_core (3)

From: syzbot
Date: Wed Jun 11 2025 - 15:57:16 EST


Hello,

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

Reported-by: syzbot+80e5d6f453f14a53383a@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+80e5d6f453f14a53383a@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 488ef356 KEYS: Invert FINAL_PUT bit
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=129a660c580000
kernel config: https://syzkaller.appspot.com/x/.config?x=713d218acd33d94
dashboard link: https://syzkaller.appspot.com/bug?extid=80e5d6f453f14a53383a
compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6
patch: https://syzkaller.appspot.com/x/patch.diff?x=170e460c580000

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