[ 71.285655][ T26] audit: type=1800 audit(1573878381.103:40): pid=9370 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 74.620071][ T26] audit: type=1400 audit(1573878384.433:41): avc: denied { map } for pid=9548 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.240' (ECDSA) to the list of known hosts. [ 81.269929][ T26] audit: type=1400 audit(1573878391.083:42): avc: denied { map } for pid=9560 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2019/11/16 04:26:31 parsed 1 programs [ 81.356683][ T26] audit: type=1400 audit(1573878391.173:43): avc: denied { map } for pid=9560 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=143 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 2019/11/16 04:26:33 executed programs: 0 [ 83.440009][ T9575] IPVS: ftp: loaded support on port[0] = 21 [ 83.508408][ T9575] chnl_net:caif_netlink_parms(): no params data found [ 83.537136][ T9575] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.544940][ T9575] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.552746][ T9575] device bridge_slave_0 entered promiscuous mode [ 83.561181][ T9575] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.568487][ T9575] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.576295][ T9575] device bridge_slave_1 entered promiscuous mode [ 83.593827][ T9575] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 83.605410][ T9575] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 83.624745][ T9575] team0: Port device team_slave_0 added [ 83.632085][ T9575] team0: Port device team_slave_1 added [ 83.687632][ T9575] device hsr_slave_0 entered promiscuous mode [ 83.754953][ T9575] device hsr_slave_1 entered promiscuous mode [ 83.856224][ T26] audit: type=1400 audit(1573878393.673:44): avc: denied { create } for pid=9575 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 83.886515][ T9575] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.893767][ T9575] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.901797][ T9575] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.906933][ T26] audit: type=1400 audit(1573878393.673:45): avc: denied { write } for pid=9575 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 83.908957][ T9575] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.006049][ T26] audit: type=1400 audit(1573878393.673:46): avc: denied { read } for pid=9575 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 84.177868][ T9575] 8021q: adding VLAN 0 to HW filter on device bond0 [ 84.216428][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.265881][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.296708][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.325860][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 84.371117][ T9575] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.416190][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.435256][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.442381][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.496747][ T3515] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.515292][ T3515] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.522428][ T3515] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.572957][ T3515] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 84.590584][ T3515] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.616348][ T3515] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 84.636288][ T3515] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.655092][ T3515] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 84.664089][ T3515] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 84.678464][ T9575] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 84.694416][ T9575] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 84.703848][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 84.712218][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 84.720899][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.738288][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 84.746522][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 84.758483][ T9575] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.808595][ T26] audit: type=1400 audit(1573878394.623:47): avc: denied { associate } for pid=9575 comm="syz-executor.0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 85.519055][ T9711] kasan: CONFIG_KASAN_INLINE enabled [ 85.524391][ T9711] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 85.532465][ T9711] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 85.539478][ T9711] CPU: 1 PID: 9711 Comm: syz-executor.0 Not tainted 5.4.0-rc7+ #0 [ 85.547262][ T9711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.557330][ T9711] RIP: 0010:__lock_acquire+0x1254/0x4a00 [ 85.562948][ T9711] Code: 00 0f 85 96 24 00 00 48 81 c4 f0 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 0b 28 00 00 49 81 3e e0 a5 06 8a 0f 84 5f ee ff [ 85.582549][ T9711] RSP: 0018:ffff888091f2fb48 EFLAGS: 00010006 [ 85.588687][ T9711] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 85.596646][ T9711] RDX: 0000000000000218 RSI: 0000000000000000 RDI: 0000000000000001 [ 85.604598][ T9711] RBP: ffff888091f2fc60 R08: 0000000000000001 R09: 0000000000000001 [ 85.612564][ T9711] R10: fffffbfff138cf08 R11: ffff888097808580 R12: 00000000000010c0 [ 85.620534][ T9711] R13: 0000000000000000 R14: 00000000000010c0 R15: 0000000000000000 [ 85.628506][ T9711] FS: 00007efc67066700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 85.637422][ T9711] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.644009][ T9711] CR2: 0000000000000000 CR3: 0000000095a71000 CR4: 00000000001406e0 [ 85.651974][ T9711] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.659941][ T9711] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.667890][ T9711] Call Trace: [ 85.671171][ T9711] ? __kasan_check_read+0x11/0x20 [ 85.676175][ T9711] ? __lock_acquire+0x16f2/0x4a00 [ 85.681178][ T9711] ? rwlock_bug.part.0+0x90/0x90 [ 85.686103][ T9711] ? lock_acquire+0x190/0x410 [ 85.690762][ T9711] ? mark_held_locks+0xf0/0xf0 [ 85.695509][ T9711] lock_acquire+0x190/0x410 [ 85.700003][ T9711] ? j1939_jsk_del+0x32/0x240 [ 85.704686][ T9711] _raw_spin_lock_bh+0x33/0x50 [ 85.709444][ T9711] ? j1939_jsk_del+0x32/0x240 [ 85.714097][ T9711] j1939_jsk_del+0x32/0x240 [ 85.718590][ T9711] ? lock_sock_nested+0xe2/0x120 [ 85.723514][ T9711] j1939_sk_bind+0x2e2/0x8e0 [ 85.728093][ T9711] __sys_bind+0x239/0x290 [ 85.732411][ T9711] ? __ia32_sys_socketpair+0xf0/0xf0 [ 85.737797][ T9711] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 85.744088][ T9711] ? put_timespec64+0xda/0x140 [ 85.748857][ T9711] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 85.754302][ T9711] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 85.759750][ T9711] ? do_syscall_64+0x26/0x760 [ 85.764408][ T9711] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.770453][ T9711] ? do_syscall_64+0x26/0x760 [ 85.775202][ T9711] __x64_sys_bind+0x73/0xb0 [ 85.779697][ T9711] do_syscall_64+0xfa/0x760 [ 85.784185][ T9711] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.790077][ T9711] RIP: 0033:0x45a669 [ 85.793953][ T9711] Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 85.813541][ T9711] RSP: 002b:00007efc67065c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 85.822022][ T9711] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a669 [ 85.830074][ T9711] RDX: 0000000000000018 RSI: 0000000020000240 RDI: 0000000000000004 [ 85.838036][ T9711] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 85.846006][ T9711] R10: 0000000000000000 R11: 0000000000000246 R12: 00007efc670666d4 [ 85.853958][ T9711] R13: 00000000004c09e9 R14: 00000000004d30d0 R15: 00000000ffffffff [ 85.861911][ T9711] Modules linked in: [ 85.865801][ T9711] ---[ end trace 61eab231ff51d9bd ]--- [ 85.871266][ T9711] RIP: 0010:__lock_acquire+0x1254/0x4a00 [ 85.876897][ T9711] Code: 00 0f 85 96 24 00 00 48 81 c4 f0 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 0b 28 00 00 49 81 3e e0 a5 06 8a 0f 84 5f ee ff [ 85.896646][ T9711] RSP: 0018:ffff888091f2fb48 EFLAGS: 00010006 [ 85.902799][ T9711] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 85.910861][ T9711] RDX: 0000000000000218 RSI: 0000000000000000 RDI: 0000000000000001 [ 85.918822][ T9711] RBP: ffff888091f2fc60 R08: 0000000000000001 R09: 0000000000000001 [ 85.926776][ T9711] R10: fffffbfff138cf08 R11: ffff888097808580 R12: 00000000000010c0 [ 85.934736][ T9711] R13: 0000000000000000 R14: 00000000000010c0 R15: 0000000000000000 [ 85.942718][ T9711] FS: 00007efc67066700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 85.951630][ T9711] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.958195][ T9711] CR2: 0000000000000000 CR3: 0000000095a71000 CR4: 00000000001406e0 [ 85.966154][ T9711] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.974174][ T9711] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.982150][ T9711] Kernel panic - not syncing: Fatal exception in interrupt [ 85.990795][ T9711] Kernel Offset: disabled [ 85.995138][ T9711] Rebooting in 86400 seconds..