kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 7991 Comm: syz-executor204 Not tainted 4.14.276-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880b4c1c2c0 task.stack: ffff888091c08000
RIP: 0010:__rb_erase_augmented include/linux/rbtree_augmented.h:167 [inline]
RIP: 0010:rb_erase+0x29/0x1290 lib/rbtree.c:459
RSP: 0018:ffff888091c0fa68 EFLAGS: 00010292
RAX: dffffc0000000000 RBX: ffff888094cdf770 RCX: 1ffff11012381f27
RDX: 0000000000000001 RSI: ffffffff8bfafea0 RDI: 0000000000000008
RBP: 0000000000000000 R08: ffffffff8ba432cc R09: 0000000000001bda
R10: 0000000000000001 R11: ffff8880b4c1c2c0 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888094ce17f8 R15: ffffffff8bfafea0
FS:  0000555556995300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200000c0 CR3: 00000000b416a000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 integrity_inode_free+0x119/0x300 security/integrity/iint.c:146
 security_inode_free+0x14/0x80 security/security.c:443
 __destroy_inode+0x1e8/0x4d0 fs/inode.c:238
 destroy_inode+0x49/0x110 fs/inode.c:265
 iput_final fs/inode.c:1524 [inline]
 iput+0x458/0x7e0 fs/inode.c:1551
 swap_inode_boot_loader fs/ext4/ioctl.c:197 [inline]
 ext4_ioctl+0x12e1/0x3800 fs/ext4/ioctl.c:924
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fc2603b9019
RSP: 002b:00007fffaec15db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 652e79726f6d656d RCX: 00007fc2603b9019
RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000004
RBP: 00007fc26037d000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc26037d090
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Code: ff ff 48 b8 00 00 00 00 00 fc ff df 41 57 49 89 f7 41 56 41 55 41 54 49 89 fc 48 83 c7 08 48 89 fa 55 48 c1 ea 03 53 48 83 ec 18 <80> 3c 02 00 0f 85 f2 0c 00 00 49 8d 7c 24 10 4d 8b 74 24 08 48 
RIP: __rb_erase_augmented include/linux/rbtree_augmented.h:167 [inline] RSP: ffff888091c0fa68
RIP: rb_erase+0x29/0x1290 lib/rbtree.c:459 RSP: ffff888091c0fa68
---[ end trace 22a6acb08c02d3f7 ]---
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   7:	fc ff df
   a:	41 57                	push   %r15
   c:	49 89 f7             	mov    %rsi,%r15
   f:	41 56                	push   %r14
  11:	41 55                	push   %r13
  13:	41 54                	push   %r12
  15:	49 89 fc             	mov    %rdi,%r12
  18:	48 83 c7 08          	add    $0x8,%rdi
  1c:	48 89 fa             	mov    %rdi,%rdx
  1f:	55                   	push   %rbp
  20:	48 c1 ea 03          	shr    $0x3,%rdx
  24:	53                   	push   %rbx
  25:	48 83 ec 18          	sub    $0x18,%rsp
* 29:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2d:	0f 85 f2 0c 00 00    	jne    0xd25
  33:	49 8d 7c 24 10       	lea    0x10(%r12),%rdi
  38:	4d 8b 74 24 08       	mov    0x8(%r12),%r14
  3d:	48                   	rex.W