RDX: 0000000020000380 RSI: 00000000200002c0 RDI: 0000000000000000
RBP: 000000000072bf00 R08: 0000000020000740 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1a8d4b26d4
R13: 00000000004c28b5 R14: 00000000004d3c90 R15: 0000000000000005
------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:27!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
kobject: 'loop1' (000000001587e3da): kobject_uevent_env
CPU: 0 PID: 15439 Comm: syz-executor3 Not tainted 4.19.0-rc6+ #44
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__phys_addr+0xb5/0x120 arch/x86/mm/physaddr.c:27
Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 e4 5a 46 00 48 85 db 75 0f e8 aa 59 46 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 9b 59 46 00 <0f> 0b e8 94 59 46 00 48 c7 c7 10 20 27 89 48 b8 00 00 00 00 00 fc
kobject: 'loop1' (000000001587e3da): fill_kobj_path: path = '/devices/virtual/block/loop1'
RSP: 0018:ffff8801802a7400 EFLAGS: 00010046
RAX: 0000000000040000 RBX: 30323739b4393234 RCX: ffffc90007e9e000
RDX: 0000000000040000 RSI: ffffffff81385be5 RDI: 0000000000000006
RBP: ffff8801802a7418 R08: ffff88018431e1c0 R09: fffffbfff1287592
R10: fffffbfff1287592 R11: ffffffff8943ac93 R12: 3032af3934393234
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f1a8d4b2700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000806e80 CR3: 00000001d758c000 CR4: 00000000001426f0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 virt_to_head_page include/linux/mm.h:658 [inline]
 virt_to_cache mm/slab.c:399 [inline]
 kfree+0x7b/0x230 mm/slab.c:3809
 fscache_free_cookie+0x230/0x280 fs/fscache/cookie.c:67
 fscache_alloc_cookie+0x74c/0x880 fs/fscache/cookie.c:202
 __fscache_acquire_cookie+0x230/0xb60 fs/fscache/cookie.c:303
 fscache_acquire_cookie include/linux/fscache.h:338 [inline]
 v9fs_cache_session_get_cookie+0xc4/0x270 fs/9p/cache.c:73
 v9fs_session_init+0xffe/0x1a70 fs/9p/v9fs.c:464
 v9fs_mount+0x7d/0x8f0 fs/9p/vfs_super.c:135
 mount_fs+0xae/0x31d fs/super.c:1261
 vfs_kern_mount.part.35+0xdc/0x4f0 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2457 [inline]
 do_mount+0x581/0x31f0 fs/namespace.c:2787
 ksys_mount+0x12d/0x140 fs/namespace.c:3003
 __do_sys_mount fs/namespace.c:3017 [inline]
 __se_sys_mount fs/namespace.c:3014 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3014
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457579
Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f1a8d4b1c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1a8d4b1c90 RCX: 0000000000457579
RDX: 0000000020000380 RSI: 00000000200002c0 RDI: 0000000000000000
RBP: 000000000072bf00 R08: 0000000020000740 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1a8d4b26d4
R13: 00000000004c28b5 R14: 00000000004d3c90 R15: 0000000000000005
Modules linked in:
---[ end trace 8f1ac0cda9511fb1 ]---
RIP: 0010:__phys_addr+0xb5/0x120 arch/x86/mm/physaddr.c:27
Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 e4 5a 46 00 48 85 db 75 0f e8 aa 59 46 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 9b 59 46 00 <0f> 0b e8 94 59 46 00 48 c7 c7 10 20 27 89 48 b8 00 00 00 00 00 fc
RSP: 0018:ffff8801802a7400 EFLAGS: 00010046
RAX: 0000000000040000 RBX: 30323739b4393234 RCX: ffffc90007e9e000
RDX: 0000000000040000 RSI: ffffffff81385be5 RDI: 0000000000000006
RBP: ffff8801802a7418 R08: ffff88018431e1c0 R09: fffffbfff1287592
R10: fffffbfff1287592 R11: ffffffff8943ac93 R12: 3032af3934393234
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f1a8d4b2700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000806e80 CR3: 00000001d758c000 CR4: 00000000001426f0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600