BUG: spinlock bad magic in synchronize

BUG: spinlock bad magic in synchronize_srcu
Status: upstream: reported syz repro on 2020/09/22 19:02
Reported-by: syzbot+05017ad275a64a3246f8@syzkaller.appspotmail.com
First crash: 164d, last: 1h53m

Cause bisection: introduced by (bisect log) [merge commit]:
commit 5c313e22d61f8c27ab001ec40f823d2a19cd5e68
Author: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Thu Oct 8 05:26:39 2020 +0000

Merge remote-tracking branch 'usb/usb-next' into master

Crash: BUG: spinlock bad magic in synchronize_srcu (log)
Repro: syz .config

Sample crash report:

BUG: spinlock bad magic on CPU#1, syz-executor.5/9598
 lock: 0xffff8880b9d00040, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
CPU: 1 PID: 9598 Comm: syz-executor.5 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0xfa/0x151 lib/dump_stack.c:120
 debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline]
 do_raw_spin_lock+0x216/0x2b0 kernel/locking/spinlock_debug.c:112
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:117 [inline]
 _raw_spin_lock_irqsave+0x41/0x50 kernel/locking/spinlock.c:159
 srcu_might_be_idle kernel/rcu/srcutree.c:772 [inline]
 synchronize_srcu+0x4f/0x1c0 kernel/rcu/srcutree.c:1010
 kvm_mmu_uninit_vm+0x18/0x30 arch/x86/kvm/mmu/mmu.c:5413
 kvm_arch_destroy_vm+0x4cd/0x670 arch/x86/kvm/x86.c:10641
 kvm_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:841 [inline]
 kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:4071 [inline]
 kvm_dev_ioctl+0xf47/0x13a0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4123
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x465ef9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9dd7783188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465ef9
RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000003
RBP: 00000000004bcd1c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffc5195ed7f R14: 00007f9dd7783300 R15: 0000000000022000
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 9598 Comm: syz-executor.5 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rcu_segcblist_enqueue+0xb9/0x130 kernel/rcu/rcu_segcblist.c:349
Code: 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4e 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 20 48 89 ea 48 c1 ea 03 <80> 3c 02 00 75 21 48 89 75 00 48 89 73 20 48 83 c4 08 5b 5d c3 48
RSP: 0018:ffffc90008fdfbf0 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff8880b9d00080 RCX: ffffffff8159dcc0
RDX: 0000000000000000 RSI: ffffc90008fdfcd8 RDI: ffff8880b9d000a0
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000003
R10: fffff520011fbf70 R11: 0000000000000000 R12: ffffc90008fdfcd8
R13: ffff8880b9d00080 R14: 0000000000000000 R15: ffff8880b9d00040
FS:  00007f9dd7783700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000050c130 CR3: 0000000018d41000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 srcu_gp_start_if_needed+0x116/0xbc0 kernel/rcu/srcutree.c:828
 __call_srcu kernel/rcu/srcutree.c:888 [inline]
 __synchronize_srcu+0x1d1/0x280 kernel/rcu/srcutree.c:934
 kvm_mmu_uninit_vm+0x18/0x30 arch/x86/kvm/mmu/mmu.c:5413
 kvm_arch_destroy_vm+0x4cd/0x670 arch/x86/kvm/x86.c:10641
 kvm_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:841 [inline]
 kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:4071 [inline]
 kvm_dev_ioctl+0xf47/0x13a0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4123
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x465ef9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9dd7783188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465ef9
RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000003
RBP: 00000000004bcd1c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffc5195ed7f R14: 00007f9dd7783300 R15: 0000000000022000
Modules linked in:
---[ end trace b12e9cb576e6bf83 ]---
RIP: 0010:rcu_segcblist_enqueue+0xb9/0x130 kernel/rcu/rcu_segcblist.c:349
Code: 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4e 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 20 48 89 ea 48 c1 ea 03 <80> 3c 02 00 75 21 48 89 75 00 48 89 73 20 48 83 c4 08 5b 5d c3 48
RSP: 0018:ffffc90008fdfbf0 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff8880b9d00080 RCX: ffffffff8159dcc0
RDX: 0000000000000000 RSI: ffffc90008fdfcd8 RDI: ffff8880b9d000a0
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000003
R10: fffff520011fbf70 R11: 0000000000000000 R12: ffffc90008fdfcd8
R13: ffff8880b9d00080 R14: 0000000000000000 R15: ffff8880b9d00040
FS:  00007f9dd7783700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000050c130 CR3: 0000000018d41000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (229):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	VM info	Title
ci-upstream-kasan-gce	2021/03/01 09:52	upstream	cd278456	4c37c133	.config	log	report	syz		BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/02/23 06:35	upstream	a99163e9	c26fb06b	.config	log	report	syz		BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/17 14:14	upstream	f40ddce8	052f8d9f	.config	log	report	syz		BUG: spinlock bad magic in synchronize_srcu
ci-qemu-upstream	2021/02/16 22:25	upstream	f40ddce8	98682e5e	.config	log	report	syz		BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-smack-root	2021/02/12 08:11	upstream	291009f6	a5f86b15	.config	log	report	syz		BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-smack-root	2021/02/08 14:52	upstream	92bf2261	2ce644fc	.config	log	report	syz		BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-386	2021/02/23 12:38	upstream	a99163e9	c26fb06b	.config	log	report	syz		BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-386	2021/01/25 17:58	upstream	6ee1d745	52e37319	.config	log	report	syz		BUG: spinlock bad magic in synchronize_srcu
ci-upstream-linux-next-kasan-gce-root	2021/02/26 23:34	linux-next	d01f2f7e	4c37c133	.config	log	report	syz		BUG: spinlock bad magic in synchronize_srcu
ci-upstream-linux-next-kasan-gce-root	2021/02/08 11:41	linux-next	aa2b8820	2ce644fc	.config	log	report	syz		BUG: spinlock bad magic in synchronize_srcu
ci-upstream-linux-next-kasan-gce-root	2021/02/08 06:52	linux-next	aa2b8820	2ce644fc	.config	log	report	syz		BUG: spinlock bad magic in synchronize_srcu
ci-upstream-linux-next-kasan-gce-root	2020/10/09 03:50	linux-next	e4fb79c7	92390980	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2020/09/26 18:50	linux-next	d1d2220c	2d5ea0cb	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2021/03/02 01:22	upstream	fe07bfda	183afb6c	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/03/02 00:18	upstream	fe07bfda	183afb6c	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/03/01 19:37	upstream	fe07bfda	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/03/01 16:29	upstream	fe07bfda	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-smack-root	2021/03/01 14:44	upstream	fe07bfda	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-qemu-upstream	2021/03/01 06:13	upstream	cd278456	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/03/01 02:58	upstream	cd278456	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/02/28 23:36	upstream	cd278456	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/28 17:49	upstream	5695e516	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-qemu-upstream	2021/02/28 15:00	upstream	5695e516	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/28 11:12	upstream	5695e516	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/02/27 22:10	upstream	5695e516	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/27 20:11	upstream	5695e516	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/27 14:19	upstream	3fb6d0e0	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/27 06:26	upstream	3fb6d0e0	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/02/27 05:25	upstream	3fb6d0e0	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/27 04:05	upstream	2c87f7a3	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/02/26 13:35	upstream	2c87f7a3	76f7fc95	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-qemu-upstream	2021/02/25 17:22	upstream	29c395c7	76f7fc95	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-smack-root	2021/02/25 14:36	upstream	29c395c7	76f7fc95	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-smack-root	2021/02/25 03:50	upstream	719bbd4a	fcc6d71b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/24 23:41	upstream	719bbd4a	fcc6d71b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/24 19:38	upstream	c03c21ba	fcc6d71b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/02/24 15:10	upstream	c03c21ba	fcc6d71b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/24 10:22	upstream	c03c21ba	fcc6d71b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/02/24 09:04	upstream	c03c21ba	fcc6d71b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/24 06:08	upstream	c03c21ba	fcc6d71b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/02/24 00:29	upstream	3b9cdafb	fcc6d71b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/23 16:59	upstream	3b9cdafb	fcc6d71b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/23 16:54	upstream	3b9cdafb	fcc6d71b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/23 15:33	upstream	3b9cdafb	fcc6d71b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/23 08:21	upstream	a99163e9	c26fb06b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce	2021/02/23 05:44	upstream	a99163e9	c26fb06b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/02/22 22:39	upstream	a99163e9	c26fb06b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-qemu-upstream	2021/02/22 12:04	upstream	31caf8b2	a659b3f1	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/02/22 10:08	upstream	31caf8b2	a659b3f1	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-386	2021/03/02 03:48	upstream	fe07bfda	183afb6c	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-386	2021/02/28 09:57	upstream	5695e516	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-386	2021/02/28 04:14	upstream	3fb6d0e0	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-qemu-upstream-386	2021/02/27 18:42	upstream	5ceabb60	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-386	2021/02/27 16:20	upstream	3fb6d0e0	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-386	2021/02/27 00:39	upstream	8b83369d	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-386	2021/02/26 14:45	upstream	2c87f7a3	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-386	2021/02/25 15:40	upstream	29c395c7	76f7fc95	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-qemu-upstream-386	2021/02/25 08:31	upstream	719bbd4a	fcc6d71b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-386	2021/02/23 10:54	upstream	a99163e9	c26fb06b	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-386	2021/02/22 17:41	upstream	31caf8b2	a659b3f1	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-linux-next-kasan-gce-root	2021/03/01 22:09	linux-next	26ada2d1	183afb6c	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-linux-next-kasan-gce-root	2021/03/01 11:14	linux-next	26ada2d1	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-linux-next-kasan-gce-root	2021/03/01 11:13	linux-next	26ada2d1	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-linux-next-kasan-gce-root	2021/03/01 08:39	linux-next	26ada2d1	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-linux-next-kasan-gce-root	2021/03/01 01:50	linux-next	d01f2f7e	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-linux-next-kasan-gce-root	2021/02/28 13:12	linux-next	d01f2f7e	4c37c133	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-linux-next-kasan-gce-root	2021/02/26 10:59	linux-next	d01f2f7e	76f7fc95	.config	log	report		info	BUG: spinlock bad magic in synchronize_srcu
ci-upstream-kasan-gce-selinux-root	2021/01/17 09:00	upstream	0da0a8a0	65a7a854	.config	log	report		info
ci-upstream-linux-next-kasan-gce-root	2020/09/21 12:13	linux-next	b10b8ad8	9e1fa68e	.config	log	report		info
ci-upstream-linux-next-kasan-gce-root	2020/09/18 19:01	linux-next	b652d2a5	53ce8104	.config	log	report		info