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AppArmor WARN cred_label: ((!blob)):
WARNING: CPU: 0 PID: 26519 at security/apparmor/include/cred.h:30 cred_label security/apparmor/include/cred.h:30 [inline]
WARNING: CPU: 0 PID: 26519 at security/apparmor/include/cred.h:30 apparmor_cred_free+0x12f/0x1a0 security/apparmor/lsm.c:62
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 26519 Comm: syz-executor1 Not tainted 5.0.0-rc2-next-20190115 #12
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/0x65c kernel/panic.c:214
__warn.cold+0x20/0x48 kernel/panic.c:571
report_bug+0x263/0x2b0 lib/bug.c:186
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
invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:cred_label security/apparmor/include/cred.h:30 [inline]
RIP: 0010:apparmor_cred_free+0x12f/0x1a0 security/apparmor/lsm.c:62
Code: 7c 88 48 c7 c7 40 d2 7c 88 e8 5d 69 f2 fd 0f 0b eb a9 e8 64 40 29 fe 48 c7 c6 00 e2 7c 88 48 c7 c7 40 d2 7c 88 e8 41 69 f2 fd <0f> 0b 48 b8 00 00 00 00 00 fc ff df 80 38 00 75 4a 4c 8b 2c 25 00
RSP: 0018:ffff8880ae6079f8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff81688726 RDI: 0000000000000006
RBP: ffff8880ae607a18 R08: ffff888017c36600 R09: ffff888017c36ec8
R10: ffff888017c36600 R11: 0000000000000000 R12: ffff888096f65b00
R13: ffff888096f65b00 R14: ffff888096f65b88 R15: dffffc0000000000
security_cred_free+0x4b/0xf0 security/security.c:1490
put_cred_rcu+0x21f/0x6e0 kernel/cred.c:118
__rcu_reclaim kernel/rcu/rcu.h:240 [inline]
rcu_do_batch kernel/rcu/tree.c:2486 [inline]
invoke_rcu_callbacks kernel/rcu/tree.c:2799 [inline]
rcu_core+0xc4a/0x1680 kernel/rcu/tree.c:2780
__do_softirq+0x30b/0xb11 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x180/0x1d0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1b7/0x760 arch/x86/kernel/apic/apic.c:1062
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x54/0x90 kernel/locking/spinlock.c:192
Code: c0 c0 83 92 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d 55 4c 9c 01 00 74 20 fb 66 0f 1f 44 00 00 01 00 00 00 e8 e2 0e 62 f9 65 8b 05 4b b6 0b 78 85 c0 74 06 41
RSP: 0018:ffff88805dec7150 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1325078 RBX: 0000000000000000 RCX: 1ffff11002f86dd9
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff888017c36e7c
RBP: ffff88805dec7158 R08: 0000000000000006 R09: ffff888017c36ec8
R10: ffff888017c36600 R11: 0000000000000000 R12: ffff88802b230d88
R13: dffffc0000000000 R14: ffff88805dec73a8 R15: ffffea0001e65300
spin_unlock_irq include/linux/spinlock.h:379 [inline]
shmem_add_to_page_cache+0xfd5/0x1a00 mm/shmem.c:625
shmem_getpage_gfp+0x161a/0x4b70 mm/shmem.c:1794
shmem_getpage mm/shmem.c:134 [inline]
shmem_write_begin+0x105/0x1e0 mm/shmem.c:2385
generic_perform_write+0x2a0/0x6b0 mm/filemap.c:3253
__generic_file_write_iter+0x25e/0x630 mm/filemap.c:3378
generic_file_write_iter+0x34e/0x6a0 mm/filemap.c:3406
call_write_iter include/linux/fs.h:1859 [inline]
new_sync_write fs/read_write.c:474 [inline]
__vfs_write+0x764/0xb40 fs/read_write.c:487
vfs_write+0x20c/0x580 fs/read_write.c:549
ksys_write+0x105/0x260 fs/read_write.c:598
__do_sys_write fs/read_write.c:610 [inline]
__se_sys_write fs/read_write.c:607 [inline]
__x64_sys_write+0x73/0xb0 fs/read_write.c:607
do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
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
RSP: 002b:00007f3f3884fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9
RDX: 00000000ffffffbd RSI: 0000000020042f70 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3f388506d4
R13: 00000000004c731c R14: 00000000004dcc68 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..