net test error: BUG: using smp_processor_id() in preemptible code in corrupted

net test error: BUG: using smp_processor_id() in preemptible code in corrupted
Status: fixed on 2020/07/17 17:58
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 81198536 ext4: mballoc: Use this_cpu_read instead of this_cpu_ptr
First crash: 222d, last: 220d

Sample crash report:

2020/06/16 21:07:06 fuzzer started
2020/06/16 21:07:06 connecting to host at 10.128.0.26:34819
2020/06/16 21:07:06 checking machine...
2020/06/16 21:07:06 checking revisions...
2020/06/16 21:07:06 testing simple program...
login: [   65.391478][ T6814] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6814
2020/06/16 21:07:07 building call list...

Crashes (3):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Maintainers
ci-upstream-net-this-kasan-gce	2020/06/16 21:07	net	b15bb881	559fbe2d	.config	log	report
ci-upstream-net-this-kasan-gce	2020/06/15 19:25	net	96144c58	baca2611	.config	log	report	adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, tytso@mit.edu
ci-upstream-net-this-kasan-gce	2020/06/14 22:37	net	96144c58	2a22c77a	.config	log	report	adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, tytso@mit.edu