loop1: detected capacity change from 0 to 264192
loop7: detected capacity change from 0 to 264192
loop0: detected capacity change from 0 to 264192
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...0: (1 ticks this GP) idle=7fd4/1/0x4000000000000000 softirq=473324/473326 fqs=24583
	(detected by 0, t=105003 jiffies, g=380869, q=5915 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 9050 Comm: syz-executor Tainted: G    B              6.0.0-rc4-next-20220906 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:kasan_report+0x6/0x1c0
Code: 0a 85 c6 05 70 e0 34 04 01 e8 32 7e 9b 02 e9 61 ff ff ff 48 83 c4 60 5b 5d 41 5c e9 34 cd e7 02 0f 1f 40 00 41 57 41 56 41 55 <41> 54 55 53 48 83 ec 68 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 c0 6e
RSP: 0018:ffff88804543f9b8 EFLAGS: 00000017
RAX: 0000000000000003 RBX: ffffed100377df2b RCX: ffffffff84253137
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88801bbef950
RBP: ffffed100377df2a R08: 0000000000000000 R09: ffff88801bbef953
R10: ffffed100377df2a R11: 0000000000000001 R12: 0000000000000003
R13: ffffed100377df2a R14: 0000000000000001 R15: 1ffff11008a87f40
FS:  000055555610f400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffa8dd14ae0 CR3: 00000000186e8000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kasan_check_range+0x35/0x1c0
 queued_spin_lock_slowpath+0xa7/0xc80
 do_raw_spin_lock+0x1dc/0x260
 kmemleak_scan+0x21d/0x16f0
 kmemleak_write+0x570/0x680
 full_proxy_write+0x11d/0x190
 vfs_write+0x2cb/0xd90
 ksys_write+0x127/0x250
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f29060a95c3
Code: 16 00 00 00 eb ae 90 b8 6e 00 00 00 eb a6 e8 44 ef 04 00 0f 1f 40 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18
RSP: 002b:00007ffd4b464088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffd4b4646c8 RCX: 00007f29060a95c3
RDX: 0000000000000004 RSI: 00007f290615fed9 RDI: 0000000000000003
RBP: 0000000000000002 R08: 0000000000000564 R09: 00007ffd4b55a080
R10: 00007ffd4b55a090 R11: 0000000000000246 R12: 00000000fffffff6
R13: 00007ffd4b465ef1 R14: 0000000000000000 R15: 000000000015122e
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	c6 05 70 e0 34 04 01 	movb   $0x1,0x434e070(%rip)        # 0x434e077
   7:	e8 32 7e 9b 02       	callq  0x29b7e3e
   c:	e9 61 ff ff ff       	jmpq   0xffffff72
  11:	48 83 c4 60          	add    $0x60,%rsp
  15:	5b                   	pop    %rbx
  16:	5d                   	pop    %rbp
  17:	41 5c                	pop    %r12
  19:	e9 34 cd e7 02       	jmpq   0x2e7cd52
  1e:	0f 1f 40 00          	nopl   0x0(%rax)
  22:	41 57                	push   %r15
  24:	41 56                	push   %r14
  26:	41 55                	push   %r13
* 28:	41 54                	push   %r12 <-- trapping instruction
  2a:	55                   	push   %rbp
  2b:	53                   	push   %rbx
  2c:	48 83 ec 68          	sub    $0x68,%rsp
  30:	9c                   	pushfq
  31:	8f 04 24             	popq   (%rsp)
  34:	0f 01 ca             	clac
  37:	65                   	gs
  38:	4c                   	rex.WR
  39:	8b                   	.byte 0x8b
  3a:	3c 25                	cmp    $0x25,%al
  3c:	c0                   	.byte 0xc0
  3d:	6e                   	outsb  %ds:(%rsi),(%dx)