audit: type=1400 audit(1537486905.494:5): avc: denied { associate } for pid=2179 comm="syz-executor0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 2179 at lib/debugobjects.c:263 debug_print_object+0x181/0x210 lib/debugobjects.c:260 ODEBUG: free active (active state 0) object type: timer_list hint: igmp_timer_expire+0x0/0x3d0 net/ipv4/igmp.c:178 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 2179 Comm: syz-executor0 Not tainted 4.9.128+ #41 ffff8801db707b40 ffffffff81af2469 ffffffff82838ba0 00000000ffffffff 0000000000000000 0000000000000001 0000000000000107 ffff8801db707c00 ffffffff813df985 0000000041b58ab3 ffffffff82c2896b ffffffff813df7c6 Call Trace: [ 791.428271] [] __dump_stack lib/dump_stack.c:15 [inline] [ 791.428271] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] panic+0x1bf/0x39f kernel/panic.c:179 [] __warn.cold.9+0xc1/0x17f kernel/panic.c:542 [] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:565 [] debug_print_object+0x181/0x210 lib/debugobjects.c:260 [] __debug_check_no_obj_freed lib/debugobjects.c:720 [inline] [] debug_check_no_obj_freed+0x4ae/0x890 lib/debugobjects.c:749 [] slab_free_hook mm/slub.c:1348 [inline] [] slab_free_freelist_hook mm/slub.c:1377 [inline] [] slab_free mm/slub.c:2958 [inline] [] kfree+0x18d/0x310 mm/slub.c:3878 [] __rcu_reclaim kernel/rcu/rcu.h:113 [inline] [] rcu_do_batch kernel/rcu/tree.c:2789 [inline] [] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] [] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] [] rcu_process_callbacks+0x9d5/0x12b0 kernel/rcu/tree.c:3037 [] __do_softirq+0x210/0x940 kernel/softirq.c:288 [] invoke_softirq kernel/softirq.c:368 [inline] [] irq_exit+0x114/0x150 kernel/softirq.c:409 [] exiting_irq arch/x86/include/asm/apic.h:669 [inline] [] smp_apic_timer_interrupt+0x81/0xa0 arch/x86/kernel/apic/apic.c:962 [] apic_timer_interrupt+0x9d/0xb0 arch/x86/entry/entry_64.S:648 [ 791.606241] [] ? current_sid security/selinux/hooks.c:219 [inline] [ 791.606241] [] ? inode_alloc_security security/selinux/hooks.c:229 [inline] [ 791.606241] [] ? selinux_inode_alloc_security+0x13/0x270 security/selinux/hooks.c:2825 [] security_inode_alloc+0x9a/0xe0 security/security.c:350 [] inode_init_always+0x47a/0x9b0 fs/inode.c:166 [] alloc_inode+0x80/0x180 fs/inode.c:214 [] new_inode_pseudo+0x17/0xe0 fs/inode.c:890 [] sock_alloc+0x41/0x280 net/socket.c:571 [] __sock_create+0x8d/0x5f0 net/socket.c:1159 [] sock_create net/socket.c:1235 [inline] [] SYSC_socket net/socket.c:1265 [inline] [] SyS_socket+0xee/0x1f0 net/socket.c:1245 [] do_syscall_64+0x19f/0x480 arch/x86/entry/common.c:282 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Kernel Offset: disabled Rebooting in 86400 seconds..