Warning: Permanently added '10.128.1.27' (ECDSA) to the list of known hosts. 2020/03/28 05:03:40 parsed 1 programs syzkaller login: [ 58.630042][ T7024] ld (7024) used greatest stack depth: 23440 bytes left 2020/03/28 05:03:43 executed programs: 0 [ 58.907011][ T7029] IPVS: ftp: loaded support on port[0] = 21 [ 59.005526][ T7029] chnl_net:caif_netlink_parms(): no params data found [ 59.053491][ T7029] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.061410][ T7029] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.069174][ T7029] device bridge_slave_0 entered promiscuous mode [ 59.079137][ T7029] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.087478][ T7029] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.095609][ T7029] device bridge_slave_1 entered promiscuous mode [ 59.115713][ T7029] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.127409][ T7029] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.149508][ T7029] team0: Port device team_slave_0 added [ 59.156924][ T7029] team0: Port device team_slave_1 added [ 59.174650][ T7029] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.181717][ T7029] 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. [ 59.209147][ T7029] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.222155][ T7029] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.229095][ T7029] 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. [ 59.255217][ T7029] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.333879][ T7029] device hsr_slave_0 entered promiscuous mode [ 59.380050][ T7029] device hsr_slave_1 entered promiscuous mode [ 59.507469][ T7029] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.562684][ T7029] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.632990][ T7029] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.692083][ T7029] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.773997][ T7029] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.781277][ T7029] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.789300][ T7029] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.796495][ T7029] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.853352][ T7029] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.866762][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.877814][ T2698] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.887289][ T2698] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.896353][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 59.910485][ T7029] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.921846][ T2688] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.931232][ T2688] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.938335][ T2688] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.960791][ T2687] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.969180][ T2687] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.976327][ T2687] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.985668][ T2687] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.995284][ T2687] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.005945][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.016497][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.033371][ T7029] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.045343][ T7029] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.058155][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.068074][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.078110][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.088014][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.109734][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.117317][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.125788][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.135234][ T7029] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.160627][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 60.169270][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 60.191552][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 60.200502][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 60.211464][ T7029] device veth0_vlan entered promiscuous mode [ 60.221391][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 60.229181][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 60.241371][ T7029] device veth1_vlan entered promiscuous mode [ 60.265159][ T2687] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 60.273471][ T2687] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 60.282111][ T2687] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 60.291334][ T2687] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 60.303498][ T7029] device veth0_macvtap entered promiscuous mode [ 60.313498][ T7029] device veth1_macvtap entered promiscuous mode [ 60.331461][ T7029] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 60.338961][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 60.348151][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 60.356599][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 60.365940][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 60.378135][ T7029] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 60.386500][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 60.395620][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2020/03/28 05:03:48 executed programs: 60 [ 65.767410][ T7822] ================================================================== [ 65.775704][ T7822] BUG: KASAN: use-after-free in __list_add_valid+0x93/0xa0 [ 65.782909][ T7822] Read of size 8 at addr ffff8880978d41e0 by task syz-executor.0/7822 [ 65.791051][ T7822] [ 65.793385][ T7822] CPU: 1 PID: 7822 Comm: syz-executor.0 Not tainted 5.6.0-rc7-syzkaller #0 [ 65.801967][ T7822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.812027][ T7822] Call Trace: [ 65.815329][ T7822] dump_stack+0x188/0x20d [ 65.819666][ T7822] ? __list_add_valid+0x93/0xa0 [ 65.824521][ T7822] ? __list_add_valid+0x93/0xa0 [ 65.829384][ T7822] print_address_description.constprop.0.cold+0xd3/0x315 [ 65.836412][ T7822] ? __list_add_valid+0x93/0xa0 [ 65.841277][ T7822] ? __list_add_valid+0x93/0xa0 [ 65.846300][ T7822] __kasan_report.cold+0x1a/0x32 [ 65.851309][ T7822] ? __list_add_valid+0x93/0xa0 [ 65.856179][ T7822] kasan_report+0xe/0x20 [ 65.860424][ T7822] __list_add_valid+0x93/0xa0 [ 65.865079][ T7822] rdma_listen+0x681/0x910 [ 65.869477][ T7822] ucma_listen+0x14d/0x1c0 [ 65.873885][ T7822] ? ucma_notify+0x190/0x190 [ 65.878456][ T7822] ? __might_fault+0x190/0x1d0 [ 65.883196][ T7822] ? _copy_from_user+0x123/0x190 [ 65.888121][ T7822] ? ucma_notify+0x190/0x190 [ 65.892699][ T7822] ucma_write+0x285/0x350 [ 65.897026][ T7822] ? ucma_open+0x270/0x270 [ 65.901432][ T7822] ? security_file_permission+0x8a/0x370 [ 65.907061][ T7822] ? ucma_open+0x270/0x270 [ 65.911463][ T7822] __vfs_write+0x76/0x100 [ 65.915778][ T7822] vfs_write+0x262/0x5c0 [ 65.920011][ T7822] ksys_write+0x1e8/0x250 [ 65.924440][ T7822] ? __ia32_sys_read+0xb0/0xb0 [ 65.929199][ T7822] ? __ia32_sys_clock_settime+0x260/0x260 [ 65.934909][ T7822] ? trace_hardirqs_off_caller+0x55/0x230 [ 65.940851][ T7822] do_syscall_64+0xf6/0x7d0 [ 65.945348][ T7822] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.951275][ T7822] RIP: 0033:0x45c849 [ 65.955206][ T7822] 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 [ 65.975007][ T7822] RSP: 002b:00007f3a88218c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 65.983401][ T7822] RAX: ffffffffffffffda RBX: 00007f3a882196d4 RCX: 000000000045c849 [ 65.991410][ T7822] RDX: 0000000000000010 RSI: 00000000200001c0 RDI: 0000000000000003 [ 65.999367][ T7822] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 66.007329][ T7822] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 66.015323][ T7822] R13: 0000000000000cc0 R14: 00000000004cee4e R15: 000000000076bf0c [ 66.023289][ T7822] [ 66.025595][ T7822] Allocated by task 7816: [ 66.029957][ T7822] save_stack+0x1b/0x80 [ 66.034128][ T7822] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 66.039750][ T7822] kmem_cache_alloc_trace+0x153/0x7d0 [ 66.045094][ T7822] __rdma_create_id+0x5b/0x850 [ 66.049840][ T7822] ucma_create_id+0x1cb/0x580 [ 66.054497][ T7822] ucma_write+0x285/0x350 [ 66.058802][ T7822] __vfs_write+0x76/0x100 [ 66.063105][ T7822] vfs_write+0x262/0x5c0 [ 66.067324][ T7822] ksys_write+0x1e8/0x250 [ 66.071631][ T7822] do_syscall_64+0xf6/0x7d0 [ 66.076134][ T7822] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 66.082015][ T7822] [ 66.084326][ T7822] Freed by task 7816: [ 66.088311][ T7822] save_stack+0x1b/0x80 [ 66.092459][ T7822] __kasan_slab_free+0xf7/0x140 [ 66.097290][ T7822] kfree+0x109/0x2b0 [ 66.101170][ T7822] ucma_close+0x10b/0x300 [ 66.105479][ T7822] __fput+0x2da/0x850 [ 66.109443][ T7822] task_work_run+0x13f/0x1b0 [ 66.114028][ T7822] exit_to_usermode_loop+0x2fa/0x360 [ 66.119309][ T7822] do_syscall_64+0x6b1/0x7d0 [ 66.123904][ T7822] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 66.129771][ T7822] [ 66.132089][ T7822] The buggy address belongs to the object at ffff8880978d4000 [ 66.132089][ T7822] which belongs to the cache kmalloc-2k of size 2048 [ 66.146133][ T7822] The buggy address is located 480 bytes inside of [ 66.146133][ T7822] 2048-byte region [ffff8880978d4000, ffff8880978d4800) [ 66.160076][ T7822] The buggy address belongs to the page: [ 66.165736][ T7822] page:ffffea00025e3500 refcount:1 mapcount:0 mapping:ffff8880aa000e00 index:0x0 [ 66.174982][ T7822] flags: 0xfffe0000000200(slab) [ 66.179818][ T7822] raw: 00fffe0000000200 ffffea00023cf188 ffffea0002611988 ffff8880aa000e00 [ 66.188391][ T7822] raw: 0000000000000000 ffff8880978d4000 0000000100000001 0000000000000000 [ 66.196958][ T7822] page dumped because: kasan: bad access detected [ 66.203349][ T7822] [ 66.205656][ T7822] Memory state around the buggy address: [ 66.211311][ T7822] ffff8880978d4080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 66.219408][ T7822] ffff8880978d4100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 66.227515][ T7822] >ffff8880978d4180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 66.235685][ T7822] ^ [ 66.242872][ T7822] ffff8880978d4200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 66.250923][ T7822] ffff8880978d4280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 66.259156][ T7822] ================================================================== [ 66.267190][ T7822] Disabling lock debugging due to kernel taint [ 66.278342][ T7822] Kernel panic - not syncing: panic_on_warn set ... [ 66.284967][ T7822] CPU: 1 PID: 7822 Comm: syz-executor.0 Tainted: G B 5.6.0-rc7-syzkaller #0 [ 66.294932][ T7822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.304978][ T7822] Call Trace: [ 66.308259][ T7822] dump_stack+0x188/0x20d [ 66.312570][ T7822] panic+0x2e3/0x75c [ 66.316443][ T7822] ? add_taint.cold+0x16/0x16 [ 66.321109][ T7822] ? preempt_schedule_common+0x5e/0xc0 [ 66.326550][ T7822] ? __list_add_valid+0x93/0xa0 [ 66.331380][ T7822] ? ___preempt_schedule+0x16/0x18 [ 66.336480][ T7822] ? trace_hardirqs_on+0x55/0x220 [ 66.341526][ T7822] ? __list_add_valid+0x93/0xa0 [ 66.346368][ T7822] end_report+0x43/0x49 [ 66.350504][ T7822] ? __list_add_valid+0x93/0xa0 [ 66.355353][ T7822] __kasan_report.cold+0xd/0x32 [ 66.360184][ T7822] ? __list_add_valid+0x93/0xa0 [ 66.365017][ T7822] kasan_report+0xe/0x20 [ 66.369262][ T7822] __list_add_valid+0x93/0xa0 [ 66.373932][ T7822] rdma_listen+0x681/0x910 [ 66.378332][ T7822] ucma_listen+0x14d/0x1c0 [ 66.382747][ T7822] ? ucma_notify+0x190/0x190 [ 66.387315][ T7822] ? __might_fault+0x190/0x1d0 [ 66.392056][ T7822] ? _copy_from_user+0x123/0x190 [ 66.397034][ T7822] ? ucma_notify+0x190/0x190 [ 66.401609][ T7822] ucma_write+0x285/0x350 [ 66.406031][ T7822] ? ucma_open+0x270/0x270 [ 66.410439][ T7822] ? security_file_permission+0x8a/0x370 [ 66.416076][ T7822] ? ucma_open+0x270/0x270 [ 66.420474][ T7822] __vfs_write+0x76/0x100 [ 66.424790][ T7822] vfs_write+0x262/0x5c0 [ 66.429012][ T7822] ksys_write+0x1e8/0x250 [ 66.433321][ T7822] ? __ia32_sys_read+0xb0/0xb0 [ 66.438069][ T7822] ? __ia32_sys_clock_settime+0x260/0x260 [ 66.443806][ T7822] ? trace_hardirqs_off_caller+0x55/0x230 [ 66.449506][ T7822] do_syscall_64+0xf6/0x7d0 [ 66.454009][ T7822] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 66.459889][ T7822] RIP: 0033:0x45c849 [ 66.463771][ T7822] 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 [ 66.483360][ T7822] RSP: 002b:00007f3a88218c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 66.491765][ T7822] RAX: ffffffffffffffda RBX: 00007f3a882196d4 RCX: 000000000045c849 [ 66.499721][ T7822] RDX: 0000000000000010 RSI: 00000000200001c0 RDI: 0000000000000003 [ 66.507679][ T7822] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 66.515677][ T7822] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 66.523926][ T7822] R13: 0000000000000cc0 R14: 00000000004cee4e R15: 000000000076bf0c [ 66.533245][ T7822] Kernel Offset: disabled [ 66.537591][ T7822] Rebooting in 86400 seconds..