Kernel panic - not syncing: smack: Failed to initialize cipso DOI. CPU: 0 PID: 5447 Comm: syz-executor.3 Tainted: G W 5.13.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack_lvl+0x1ae/0x29f lib/dump_stack.c:96 panic+0x2e1/0x850 kernel/panic.c:231 smk_cipso_doi+0x542/0x550 security/smack/smackfs.c:698 smk_write_doi+0x174/0x210 security/smack/smackfs.c:1615 vfs_write+0x289/0xc90 fs/read_write.c:603 ksys_write+0x171/0x2a0 fs/read_write.c:658 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff48cb34188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000014 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 00007ff48cb341d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff79a5a38f R14: 00007ff48cb34300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..