EXT4-fs (loop2): Invalid log cluster size: 83886084
BUG: unable to handle kernel paging request at ffff888000c93980
PGD de01067 P4D de01067 PUD de02067 PMD 19f063 PTE 77077000077000
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 9379 Comm: kworker/u4:5 Not tainted 4.19.204-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: writeback wb_workfn (flush-8:0)
RIP: 0010:qlist_free_all+0x2f/0x140 mm/kasan/quarantine.c:164
Code: 55 41 54 55 53 48 8b 1f 48 85 db 0f 84 08 01 00 00 48 89 f5 49 89 fd 48 85 ed 49 89 ee 0f 84 8b 00 00 00 49 63 86 fc 00 00 00 <4c> 8b 23 48 29 c3 48 83 3d 13 0c 59 08 00 0f 84 e6 00 00 00 9c 58
RSP: 0018:ffff88804662f188 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888000c93980 RCX: ffffea0002711047
RDX: 0000000000000000 RSI: ffffffff812b6e9a RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: ffff888000c93980
R13: ffff88804662f1c0 R14: ffff88813bff0340 R15: 0000000000000282
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888000c93980 CR3: 0000000097272000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 quarantine_reduce+0x1a9/0x230 mm/kasan/quarantine.c:259
 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:538
 slab_post_alloc_hook mm/slab.h:445 [inline]
 slab_alloc mm/slab.c:3397 [inline]
 kmem_cache_alloc+0x110/0x370 mm/slab.c:3557
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 ext4_init_io_end+0x23/0x110 fs/ext4/page-io.c:253
 ext4_writepages+0x10f2/0x37f0 fs/ext4/inode.c:2830
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __writeback_single_inode+0x10c/0x11d0 fs/fs-writeback.c:1385
 writeback_sb_inodes+0x537/0xef0 fs/fs-writeback.c:1647
 __writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1716
 wb_writeback+0x841/0xcc0 fs/fs-writeback.c:1822
 wb_check_old_data_flush fs/fs-writeback.c:1924 [inline]
 wb_do_writeback fs/fs-writeback.c:1977 [inline]
 wb_workfn+0x8ba/0x1250 fs/fs-writeback.c:2006
 process_one_work+0x864/0x1570 kernel/workqueue.c:2153
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Modules linked in:
CR2: ffff888000c93980
---[ end trace faee4c5cc8de0dd6 ]---
RIP: 0010:qlist_free_all+0x2f/0x140 mm/kasan/quarantine.c:164
Code: 55 41 54 55 53 48 8b 1f 48 85 db 0f 84 08 01 00 00 48 89 f5 49 89 fd 48 85 ed 49 89 ee 0f 84 8b 00 00 00 49 63 86 fc 00 00 00 <4c> 8b 23 48 29 c3 48 83 3d 13 0c 59 08 00 0f 84 e6 00 00 00 9c 58
RSP: 0018:ffff88804662f188 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888000c93980 RCX: ffffea0002711047
RDX: 0000000000000000 RSI: ffffffff812b6e9a RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: ffff888000c93980
R13: ffff88804662f1c0 R14: ffff88813bff0340 R15: 0000000000000282
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888000c93980 CR3: 0000000097272000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	55                   	push   %rbp
   1:	41 54                	push   %r12
   3:	55                   	push   %rbp
   4:	53                   	push   %rbx
   5:	48 8b 1f             	mov    (%rdi),%rbx
   8:	48 85 db             	test   %rbx,%rbx
   b:	0f 84 08 01 00 00    	je     0x119
  11:	48 89 f5             	mov    %rsi,%rbp
  14:	49 89 fd             	mov    %rdi,%r13
  17:	48 85 ed             	test   %rbp,%rbp
  1a:	49 89 ee             	mov    %rbp,%r14
  1d:	0f 84 8b 00 00 00    	je     0xae
  23:	49 63 86 fc 00 00 00 	movslq 0xfc(%r14),%rax
  2a:	4c 8b 23             	mov    (%rbx),%r12 <-- trapping instruction
  2d:	48 29 c3             	sub    %rax,%rbx
  30:	48 83 3d 13 0c 59 08 	cmpq   $0x0,0x8590c13(%rip)        # 0x8590c4b
  37:	00 
  38:	0f 84 e6 00 00 00    	je     0x124
  3e:	9c                   	pushfq 
  3f:	58                   	pop    %rax