audit: type=1400 audit(2000000008.180:68): avc:  denied  { associate } for  pid=9455 comm="syz-executor1" name="#7" scontext=system_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:tmpfs_t:s0 tclass=filesystem permissive=1
overlayfs: filesystem on './file0' not supported as upperdir
WARNING: CPU: 0 PID: 9476 at fs/overlayfs/dir.c:263 ovl_instantiate+0x363/0x400 fs/overlayfs/dir.c:263
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 9476 Comm: syz-executor1 Not tainted 4.20.0+ #7
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1db/0x2d0 lib/dump_stack.c:113
 panic+0x2cb/0x589 kernel/panic.c:189
 __warn.cold+0x20/0x4b kernel/panic.c:544
 report_bug+0x263/0x2b0 lib/bug.c:186
kobject: 'loop4' (00000000f3765f8b): kobject_uevent_env
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290
kobject: 'loop4' (00000000f3765f8b): fill_kobj_path: path = '/devices/virtual/block/loop4'
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:ovl_instantiate+0x363/0x400 fs/overlayfs/dir.c:263
Code: c3 89 c6 e8 ff 94 f0 fe 85 db 0f 85 a6 00 00 00 e8 72 93 f0 fe 4c 89 e7 45 31 e4 e8 d7 02 47 ff e9 ef fe ff ff e8 5d 93 f0 fe <0f> 0b 41 89 dc e9 e0 fe ff ff e8 4e 93 f0 fe 0f 0b e9 64 ff ff ff
kobject: 'loop0' (000000004a08df44): kobject_uevent_env
RSP: 0018:ffff88802b2079b8 EFLAGS: 00010212
RAX: 0000000000040000 RBX: ffffffffffffff8c RCX: ffffc90008468000
RDX: 0000000000004803 RSI: ffffffff82910313 RDI: 0000000000000007
RBP: ffff88802b207a98 R08: ffff8880369ea680 R09: ffffed1005640ef9
R10: ffffed1005640ef8 R11: 0000000000000003 R12: ffff88807bffeb80
R13: ffff88802b207a70 R14: 0000000000000000 R15: ffff88802b2079f0
kobject: 'loop0' (000000004a08df44): fill_kobj_path: path = '/devices/virtual/block/loop0'
 ovl_create_over_whiteout fs/overlayfs/dir.c:518 [inline]
 ovl_create_or_link+0xa92/0x1560 fs/overlayfs/dir.c:582
could not allocate digest TFM handle sha256-ni
 ovl_create_object+0x2fa/0x3b0 fs/overlayfs/dir.c:616
 ovl_mkdir+0x28/0x30 fs/overlayfs/dir.c:635
 vfs_mkdir+0x433/0x690 fs/namei.c:3816
 do_mkdirat+0x271/0x2f0 fs/namei.c:3839
kobject: 'loop0' (000000004a08df44): kobject_uevent_env
 __do_sys_mkdirat fs/namei.c:3850 [inline]
 __se_sys_mkdirat fs/namei.c:3848 [inline]
 __x64_sys_mkdirat+0x76/0xb0 fs/namei.c:3848
could not allocate digest TFM handle sha256-ni
 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
kobject: 'loop0' (000000004a08df44): fill_kobj_path: path = '/devices/virtual/block/loop0'
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
kobject: 'loop2' (00000000417a7be5): kobject_uevent_env
RSP: 002b:00007f9f654c5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9
RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000006
RBP: 000000000073c0e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9f654c66d4
kobject: 'loop2' (00000000417a7be5): fill_kobj_path: path = '/devices/virtual/block/loop2'
R13: 00000000004c398b R14: 00000000004d64f0 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..