WARNING: ODEBUG bug in __do

WARNING: ODEBUG bug in __do_softirq
Status: upstream: reported C repro on 2018/02/17 08:15
Reported-by: syzbot+51c9bdfa559769d2f897@syzkaller.appspotmail.com
First crash: 1115d, last: 122d

Cause bisection: introduced by (bisect log) :
commit 5b317cbf2bcb85a1e96ce87717cb991ecab1dd4d
Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Fri Feb 22 09:17:11 2019 +0000

Merge branch 'pm-cpufreq-fixes'

Crash: KASAN: use-after-free Read in rpc_make_runnable (log)
Repro: syz .config

Fix bisection: failed (bisect log)

similar bugs (1):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
android-49	WARNING: ODEBUG bug in __do_softirq	syz			1	898d	692d	0/3	public: reported syz repro on 2019/04/14 09:28

Sample crash report:

------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: work_struct hint: afs_manage_cell+0x0/0x11c0 fs/afs/cell.c:498
WARNING: CPU: 1 PID: 16 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 lib/debugobjects.c:485
Modules linked in:
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.9.0-rc2-next-20200825-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:debug_print_object+0x160/0x250 lib/debugobjects.c:485
Code: dd 60 56 94 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 60 56 94 88 48 c7 c7 c0 4b 94 88 e8 eb bd a4 fd <0f> 0b 83 05 13 50 1b 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89
RSP: 0018:ffffc90000d7fbf8 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffff8880a9686440 RSI: ffffffff815da937 RDI: fffff520001aff71
RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ae720f8b
R10: 0000000000000000 R11: 203a47554245444f R12: ffffffff89ba35e0
R13: ffffffff814b6290 R14: dead000000000100 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9120aabe78 CR3: 0000000088b2e000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __debug_check_no_obj_freed lib/debugobjects.c:967 [inline]
 debug_check_no_obj_freed+0x301/0x41c lib/debugobjects.c:998
 kfree+0xf0/0x2c0 mm/slab.c:3755
 rcu_do_batch kernel/rcu/tree.c:2474 [inline]
 rcu_core+0x61e/0x1220 kernel/rcu/tree.c:2709
 __do_softirq+0x2de/0xa24 kernel/softirq.c:298
 run_ksoftirqd kernel/softirq.c:652 [inline]
 run_ksoftirqd+0x89/0x100 kernel/softirq.c:644
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:165
 kthread+0x3b5/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Crashes (29):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info
ci-upstream-linux-next-kasan-gce-root	2020/08/26 08:53	linux-next	3a00d3df	344da168	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2019/02/24 18:56	upstream	e60b5f79	7a06e792	.config	log	report	syz
ci-upstream-kasan-gce-root	2018/12/17 13:58	upstream	7566ec39	def91db3	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2018/12/17 13:25	upstream	7566ec39	def91db3	.config	log	report	syz
ci-upstream-bpf-next-kasan-gce	2018/06/29 08:57	bpf-next	509fda10	dba0b50e	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2018/12/24 01:49	linux-next	6648e120	e3bd7ab8	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2020/11/04 22:29	upstream	4ef8451b	64069d48	.config	log	report			info
ci-upstream-kasan-gce	2020/09/28 01:29	upstream	16bc1d54	5dd8aee8	.config	log	report			info
ci-upstream-kasan-gce-selinux-root	2020/03/02 18:33	upstream	63623fd4	c88c7b75	.config	log	report
ci-upstream-kasan-gce-smack-root	2019/04/19 13:30	upstream	6d906f99	b0e8efcb	.config	log	report
ci-upstream-kasan-gce-smack-root	2019/03/17 03:36	upstream	a9dce667	bab43553	.config	log	report
ci-upstream-kasan-gce-root	2019/03/03 20:54	upstream	c027c7cf	1c0e457a	.config	log	report
ci-upstream-kasan-gce	2019/02/21 19:21	upstream	f6163d67	3133098b	.config	log	report
ci-upstream-kasan-gce-selinux-root	2019/02/15 15:00	upstream	cb5b020a	f6f233c0	.config	log	report
ci-upstream-kasan-gce-smack-root	2019/01/26 22:52	upstream	ba606975	c73f090a	.config	log	report
ci-upstream-kasan-gce-root	2019/01/17 07:19	upstream	47bfa6d9	c2faf9b2	.config	log	report
ci-upstream-kasan-gce-root	2019/01/16 09:28	upstream	7939f8be	b47fa78d	.config	log	report
ci-upstream-kasan-gce-selinux-root	2018/12/17 10:38	upstream	7566ec39	def91db3	.config	log	report
ci-upstream-kasan-gce-386	2020/02/02 23:00	upstream	46d6b7be	93e5e335	.config	log	report
ci-qemu-upstream-386	2020/01/15 13:02	upstream	95e20af9	fa12bd3c	.config	log	report
ci-upstream-bpf-next-kasan-gce	2018/07/06 11:01	bpf-next	6fcf9b1d	18403e65	.config	log	report
ci-upstream-bpf-next-kasan-gce	2018/07/06 02:34	bpf-next	6fcf9b1d	d3b2a0e2	.config	log	report
ci-upstream-bpf-next-kasan-gce	2018/06/29 07:42	bpf-next	509fda10	dba0b50e	.config	log	report
ci-upstream-bpf-next-kasan-gce	2018/06/26 20:14	bpf-next	651b4513	b0294c53	.config	log	report
ci-upstream-bpf-next-kasan-gce	2018/06/24 04:17	bpf-next	f0dc7f9c	2064fc5c	.config	log	report
ci-upstream-bpf-next-kasan-gce	2018/02/16 21:53	bpf-next	0b6b8a3d	c8b3f7c1	.config	log	report
ci-upstream-bpf-next-kasan-gce	2018/02/15 22:43	bpf-next	0b6b8a3d	c8b3f7c1	.config	log	report
ci-upstream-linux-next-kasan-gce-root	2019/01/19 00:38	linux-next	9673b4aa	2103a236	.config	log	report
ci-upstream-linux-next-kasan-gce-root	2018/10/06 13:46	linux-next	12ffaa11	8b311eaf	.config	log	report