[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Starting Load/Save RF Kill Switch Status...
[[0;32m OK [0m] Started Load/Save RF Kill Switch Status.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.0.71' (ECDSA) to the list of known hosts.
2020/04/03 05:31:08 parsed 1 programs
2020/04/03 05:31:10 executed programs: 0
syzkaller login: [ 42.173153] audit: type=1400 audit(1585891870.977:8): avc: denied { execmem } for pid=6443 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[ 42.203313] IPVS: ftp: loaded support on port[0] = 21
[ 42.292410] chnl_net:caif_netlink_parms(): no params data found
[ 42.384703] bridge0: port 1(bridge_slave_0) entered blocking state
[ 42.391485] bridge0: port 1(bridge_slave_0) entered disabled state
[ 42.398614] device bridge_slave_0 entered promiscuous mode
[ 42.407932] bridge0: port 2(bridge_slave_1) entered blocking state
[ 42.414682] bridge0: port 2(bridge_slave_1) entered disabled state
[ 42.422162] device bridge_slave_1 entered promiscuous mode
[ 42.440465] bond0: Enslaving bond_slave_0 as an active interface with an up link
[ 42.449300] bond0: Enslaving bond_slave_1 as an active interface with an up link
[ 42.469109] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[ 42.476570] team0: Port device team_slave_0 added
[ 42.482661] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[ 42.489946] team0: Port device team_slave_1 added
[ 42.506475] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 42.512812] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
[ 42.538385] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 42.551161] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 42.557407] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
[ 42.582638] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 42.593319] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
[ 42.600814] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
[ 42.653854] device hsr_slave_0 entered promiscuous mode
[ 42.690928] device hsr_slave_1 entered promiscuous mode
[ 42.731617] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready
[ 42.738809] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready
[ 42.808180] bridge0: port 2(bridge_slave_1) entered blocking state
[ 42.814766] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 42.821685] bridge0: port 1(bridge_slave_0) entered blocking state
[ 42.828058] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 42.866428] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready
[ 42.872892] 8021q: adding VLAN 0 to HW filter on device bond0
[ 42.882521] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[ 42.891662] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 42.900079] bridge0: port 1(bridge_slave_0) entered disabled state
[ 42.918139] bridge0: port 2(bridge_slave_1) entered disabled state
[ 42.926761] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 42.937994] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
[ 42.944187] 8021q: adding VLAN 0 to HW filter on device team0
[ 42.954535] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 42.962318] bridge0: port 1(bridge_slave_0) entered blocking state
[ 42.968681] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 42.981867] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 42.989516] bridge0: port 2(bridge_slave_1) entered blocking state
[ 42.995972] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 43.009348] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 43.018048] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 43.028608] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 43.039937] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 43.052015] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 43.060834] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready
[ 43.066900] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 43.080898] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready
[ 43.088809] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 43.096734] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 43.107691] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 43.121028] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready
[ 43.131341] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 43.168681] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready
[ 43.176338] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready
[ 43.183903] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready
[ 43.194048] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 43.201860] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 43.208710] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 43.217901] device veth0_vlan entered promiscuous mode
[ 43.227273] device veth1_vlan entered promiscuous mode
[ 43.233602] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready
[ 43.242805] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready
[ 43.256190] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready
[ 43.266255] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 43.273817] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 43.281618] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 43.292831] device veth0_macvtap entered promiscuous mode
[ 43.301613] device veth1_macvtap entered promiscuous mode
[ 43.310534] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready
[ 43.319606] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready
[ 43.329903] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready
[ 43.337769] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 43.344767] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 43.352766] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 43.363478] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready
[ 43.370606] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 43.377130] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 43.385820] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 43.556377] ==================================================================
[ 43.563884] BUG: KASAN: use-after-free in __list_add_valid+0x93/0xa0
[ 43.570503] Read of size 8 at addr ffff888091fba260 by task syz-executor.0/6676
[ 43.578062]
[ 43.579683] CPU: 1 PID: 6676 Comm: syz-executor.0 Not tainted 4.19.114-syzkaller #0
[ 43.587544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 43.596996] Call Trace:
[ 43.599582] dump_stack+0x188/0x20d
[ 43.603205] ? __list_add_valid+0x93/0xa0
[ 43.607502] print_address_description.cold+0x7c/0x212
[ 43.612850] ? __list_add_valid+0x93/0xa0
[ 43.617005] kasan_report.cold+0x88/0x2b9
[ 43.621154] __list_add_valid+0x93/0xa0
[ 43.625125] rdma_listen+0x609/0x880
[ 43.628835] ucma_listen+0x14d/0x1c0
[ 43.632665] ? ucma_notify+0x190/0x190
[ 43.636685] ? __might_fault+0x192/0x1d0
[ 43.640790] ? _copy_from_user+0xd2/0x140
[ 43.644973] ? ucma_notify+0x190/0x190
[ 43.648896] ucma_write+0x285/0x350
[ 43.652549] ? ucma_open+0x280/0x280
[ 43.656258] ? __fget+0x319/0x510
[ 43.659707] __vfs_write+0xf7/0x760
[ 43.663324] ? ucma_open+0x280/0x280
[ 43.667034] ? kernel_read+0x110/0x110
[ 43.671219] ? __inode_security_revalidate+0xd3/0x120
[ 43.676448] ? avc_policy_seqno+0x9/0x70
[ 43.680619] ? selinux_file_permission+0x87/0x520
[ 43.685492] ? security_file_permission+0x84/0x220
[ 43.690423] vfs_write+0x206/0x550
[ 43.693957] ksys_write+0x12b/0x2a0
[ 43.697575] ? __ia32_sys_read+0xb0/0xb0
[ 43.701633] ? __ia32_sys_clock_settime+0x260/0x260
[ 43.706649] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 43.711402] ? trace_hardirqs_off_caller+0x55/0x210
[ 43.716418] ? do_syscall_64+0x21/0x620
[ 43.720388] do_syscall_64+0xf9/0x620
[ 43.724187] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 43.729371] RIP: 0033:0x45c849
[ 43.732638] 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
[ 43.751907] RSP: 002b:00007f468370ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 43.759611] RAX: ffffffffffffffda RBX: 00007f468370f6d4 RCX: 000000000045c849
[ 43.766876] RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000004
[ 43.774260] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
[ 43.781722] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
[ 43.788992] R13: 0000000000000cc0 R14: 00000000004cee4e R15: 000000000076bf0c
[ 43.796265]
[ 43.797884] Allocated by task 6669:
[ 43.801507] kasan_kmalloc+0xbf/0xe0
[ 43.805342] kmem_cache_alloc_trace+0x14d/0x7a0
[ 43.810135] __rdma_create_id+0x5b/0x630
[ 43.814194] ucma_create_id+0x1cb/0x5a0
[ 43.818169] ucma_write+0x285/0x350
[ 43.821791] __vfs_write+0xf7/0x760
[ 43.825480] vfs_write+0x206/0x550
[ 43.829014] ksys_write+0x12b/0x2a0
[ 43.832698] do_syscall_64+0xf9/0x620
[ 43.836490] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 43.841733]
[ 43.843351] Freed by task 6668:
[ 43.846626] __kasan_slab_free+0xf7/0x140
[ 43.850765] kfree+0xce/0x220
[ 43.853862] ucma_close+0x10b/0x320
[ 43.857477] __fput+0x2cd/0x890
[ 43.860854] task_work_run+0x13f/0x1b0
[ 43.864738] exit_to_usermode_loop+0x25a/0x2b0
[ 43.869310] do_syscall_64+0x538/0x620
[ 43.873191] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 43.878364]
[ 43.879990] The buggy address belongs to the object at ffff888091fba080
[ 43.879990] which belongs to the cache kmalloc-2048 of size 2048
[ 43.892988] The buggy address is located 480 bytes inside of
[ 43.892988] 2048-byte region [ffff888091fba080, ffff888091fba880)
[ 43.904957] The buggy address belongs to the page:
[ 43.909889] page:ffffea000247ee80 count:1 mapcount:0 mapping:ffff88812c3dcc40 index:0x0 compound_mapcount: 0
[ 43.919902] flags: 0xfffe0000008100(slab|head)
[ 43.924582] raw: 00fffe0000008100 ffffea0002112108 ffffea000284e308 ffff88812c3dcc40
[ 43.932455] raw: 0000000000000000 ffff888091fba080 0000000100000003 0000000000000000
[ 43.940439] page dumped because: kasan: bad access detected
[ 43.946660]
[ 43.948279] Memory state around the buggy address:
[ 43.953204] ffff888091fba100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 43.960681] ffff888091fba180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 43.968032] >ffff888091fba200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 43.975381] ^
[ 43.981955] ffff888091fba280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 43.989350] ffff888091fba300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 43.996699] ==================================================================
[ 44.004046] Disabling lock debugging due to kernel taint
[ 44.017103] Kernel panic - not syncing: panic_on_warn set ...
[ 44.017103]
[ 44.024505] CPU: 1 PID: 6676 Comm: syz-executor.0 Tainted: G B 4.19.114-syzkaller #0
[ 44.033815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 44.043177] Call Trace:
[ 44.045776] dump_stack+0x188/0x20d
[ 44.049416] panic+0x26a/0x50e
[ 44.052724] ? __warn_printk+0xf3/0xf3
[ 44.056604] ? preempt_schedule_common+0x4a/0xc0
[ 44.061411] ? __list_add_valid+0x93/0xa0
[ 44.065826] ? ___preempt_schedule+0x16/0x18
[ 44.070355] ? trace_hardirqs_on+0x55/0x210
[ 44.074679] ? __list_add_valid+0x93/0xa0
[ 44.078831] kasan_end_report+0x43/0x49
[ 44.082801] kasan_report.cold+0xa4/0x2b9
[ 44.086944] __list_add_valid+0x93/0xa0
[ 44.090915] rdma_listen+0x609/0x880
[ 44.094629] ucma_listen+0x14d/0x1c0
[ 44.098348] ? ucma_notify+0x190/0x190
[ 44.102228] ? __might_fault+0x192/0x1d0
[ 44.106281] ? _copy_from_user+0xd2/0x140
[ 44.110422] ? ucma_notify+0x190/0x190
[ 44.114301] ucma_write+0x285/0x350
[ 44.117925] ? ucma_open+0x280/0x280
[ 44.121639] ? __fget+0x319/0x510
[ 44.125086] __vfs_write+0xf7/0x760
[ 44.128713] ? ucma_open+0x280/0x280
[ 44.132421] ? kernel_read+0x110/0x110
[ 44.136301] ? __inode_security_revalidate+0xd3/0x120
[ 44.141480] ? avc_policy_seqno+0x9/0x70
[ 44.145538] ? selinux_file_permission+0x87/0x520
[ 44.150461] ? security_file_permission+0x84/0x220
[ 44.155385] vfs_write+0x206/0x550
[ 44.158941] ksys_write+0x12b/0x2a0
[ 44.162570] ? __ia32_sys_read+0xb0/0xb0
[ 44.166619] ? __ia32_sys_clock_settime+0x260/0x260
[ 44.171628] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 44.176387] ? trace_hardirqs_off_caller+0x55/0x210
[ 44.181418] ? do_syscall_64+0x21/0x620
[ 44.185389] do_syscall_64+0xf9/0x620
[ 44.189184] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 44.194364] RIP: 0033:0x45c849
[ 44.197549] 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
[ 44.216442] RSP: 002b:00007f468370ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 44.224438] RAX: ffffffffffffffda RBX: 00007f468370f6d4 RCX: 000000000045c849
[ 44.231709] RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000004
[ 44.238974] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
[ 44.246236] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
[ 44.253615] R13: 0000000000000cc0 R14: 00000000004cee4e R15: 000000000076bf0c
[ 44.262547] Kernel Offset: disabled
[ 44.266290] Rebooting in 86400 seconds..