netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. INFO: trying to register non-static key. audit: type=1400 audit(1567067186.009:70): avc: denied { net_broadcast } for pid=15597 comm="syz-executor.2" capability=11 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 1 PID: 12026 Comm: syz-executor.4 Not tainted 4.9.141+ #1 ffff8801d31377a0 ffffffff81b42e79 0000000000000000 0000000000000567 ffff8801a6d37460 ffff8801a6d37460 0000000000000000 ffff8801d3137820 ffffffff81201a20 0000000000001c59 ffff8801ccbdb848 ffff8801ccbdb820 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] register_lock_class+0x1160/0x1170 kernel/locking/lockdep.c:738 [] __lock_acquire+0x169/0x4a10 kernel/locking/lockdep.c:3233 audit: type=1400 audit(1567067186.009:71): avc: denied { sys_admin } for pid=15597 comm="syz-executor.2" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [] lock_acquire+0x130/0x3e0 kernel/locking/lockdep.c:3756 [] __raw_spin_lock include/linux/spinlock_api_smp.h:144 [inline] [] _raw_spin_lock+0x36/0x50 kernel/locking/spinlock.c:151 [] spin_lock include/linux/spinlock.h:302 [inline] [] ptr_ring_consume include/linux/ptr_ring.h:268 [inline] [] skb_array_consume include/linux/skb_array.h:97 [inline] [] tun_ring_recv drivers/net/tun.c:1477 [inline] [] tun_do_read.part.10+0x74d/0x1180 drivers/net/tun.c:1514 [] tun_do_read drivers/net/tun.c:1536 [inline] [] tun_chr_read_iter+0x161/0x1f0 drivers/net/tun.c:1536 [] new_sync_read fs/read_write.c:439 [inline] [] __vfs_read+0x3d4/0x560 fs/read_write.c:451 [] vfs_read+0x124/0x390 fs/read_write.c:472 [] SYSC_pread64 fs/read_write.c:626 [inline] [] SyS_pread64+0x145/0x170 fs/read_write.c:613 [] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb audit: type=1400 audit(1567067186.399:72): avc: denied { dac_override } for pid=15582 comm="syz-executor.1" capability=1 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067186.429:73): avc: denied { net_admin } for pid=2087 comm="syz-executor.3" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067186.429:74): avc: denied { net_admin } for pid=2087 comm="syz-executor.3" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067186.429:75): avc: denied { net_admin } for pid=2087 comm="syz-executor.3" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067186.429:76): avc: denied { net_admin } for pid=2087 comm="syz-executor.3" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067186.459:77): avc: denied { net_admin } for pid=2087 comm="syz-executor.3" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067186.469:78): avc: denied { net_admin } for pid=15592 comm="syz-executor.4" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. audit: type=1400 audit(1567067186.469:79): avc: denied { net_admin } for pid=2087 comm="syz-executor.3" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 SELinux: policydb string length 524296 does not match expected length 8 SELinux: policydb string length 524296 does not match expected length 8 keychord: Insufficient bytes present for header 3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=65535 sclass=netlink_route_socket pig=15741 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=15735 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=65535 sclass=netlink_route_socket pig=15735 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=15762 comm=syz-executor.5 audit_printk_skb: 2005 callbacks suppressed audit: type=1400 audit(1567067191.019:748): avc: denied { sys_admin } for pid=2089 comm="syz-executor.2" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067191.069:749): avc: denied { dac_override } for pid=15791 comm="syz-executor.1" capability=1 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067191.079:750): avc: denied { net_admin } for pid=15789 comm="syz-executor.0" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067191.079:751): avc: denied { dac_override } for pid=15791 comm="syz-executor.1" capability=1 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067191.109:752): avc: denied { sys_admin } for pid=2088 comm="syz-executor.1" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067191.109:753): avc: denied { sys_admin } for pid=2088 comm="syz-executor.1" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067191.109:754): avc: denied { sys_admin } for pid=2088 comm="syz-executor.1" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067191.109:755): avc: denied { net_admin } for pid=2088 comm="syz-executor.1" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067191.109:756): avc: denied { net_admin } for pid=2088 comm="syz-executor.1" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 audit: type=1400 audit(1567067191.119:757): avc: denied { net_admin } for pid=2088 comm="syz-executor.1" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 qtaguid: iface_stat: create6(lo): no inet dev