Warning: Permanently added '10.128.10.50' (ECDSA) to the list of known hosts. 2020/09/15 13:00:43 fuzzer started 2020/09/15 13:00:44 dialing manager at 10.128.0.105:45161 2020/09/15 13:00:44 syscalls: 3334 2020/09/15 13:00:44 code coverage: enabled 2020/09/15 13:00:44 comparison tracing: enabled 2020/09/15 13:00:44 extra coverage: enabled 2020/09/15 13:00:44 setuid sandbox: enabled 2020/09/15 13:00:44 namespace sandbox: enabled 2020/09/15 13:00:44 Android sandbox: /sys/fs/selinux/policy does not exist 2020/09/15 13:00:44 fault injection: enabled 2020/09/15 13:00:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/09/15 13:00:44 net packet injection: enabled 2020/09/15 13:00:44 net device setup: enabled 2020/09/15 13:00:44 concurrency sanitizer: enabled 2020/09/15 13:00:44 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/09/15 13:00:44 USB emulation: enabled 2020/09/15 13:00:44 hci packet injection: enabled 2020/09/15 13:00:45 suppressing KCSAN reports in functions: 'blk_mq_rq_ctx_init' 'ext4_free_inode' 'tick_nohz_stop_tick' 'generic_write_end' '__xa_clear_mark' '__ext4_new_inode' 13:00:51 executing program 0: r0 = socket$inet_sctp(0x2, 0x1, 0x84) sendmsg$inet_sctp(r0, &(0x7f00000006c0)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000640)=[@sndinfo={0x20, 0x84, 0x2, {0x0, 0x5}}], 0x20}, 0x0) 13:00:51 executing program 1: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000080)={0x0, 0x382, &(0x7f0000000140)={0x0, 0xb7ff}}, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000001280)=ANY=[@ANYBLOB="3400000010000104000009040000000000000000", @ANYRES32=r2, @ANYBLOB="0000000000000000140012000c000100627269646765"], 0x34}}, 0x0) r3 = socket(0x10, 0x803, 0x0) r4 = socket(0x1, 0x803, 0x0) getsockname$packet(r4, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000580)=ANY=[@ANYBLOB="400000001400b59500000000000000000a400000", @ANYRES32=r5, @ANYBLOB="1400020000000000000000000000e5ffac141400140006000000000006"], 0x40}}, 0x0) r6 = socket(0x10, 0x803, 0x0) r7 = socket(0x1, 0x803, 0x0) getsockname$packet(r7, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r6, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000480)=ANY=[@ANYBLOB="400000001400b59500000000000000000a400000", @ANYRES32=r8, @ANYBLOB="1400020000000000000000000000ffffac141400140006000000000006"], 0x40}}, 0x0) r9 = socket(0x10, 0x803, 0x0) r10 = socket(0x1, 0x803, 0x0) getsockname$packet(r10, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r9, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000340)=ANY=[@ANYBLOB="2c0000001400b59500000000000000000a400000", @ANYRES32=r11, @ANYBLOB="1400020000000000000000000000ffff"], 0x2c}}, 0x0) r12 = socket(0x10, 0x803, 0x0) r13 = socket(0x1, 0x803, 0x0) getsockname$packet(r13, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r12, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000240)=@ipv6_newaddr={0x34, 0x14, 0x9535393fea6295b5, 0x0, 0x0, {0xa, 0x0, 0x0, 0x0, r14}, [@IFA_FLAGS={0x8, 0x8, 0x3778bcbaae6b531f}, @IFA_LOCAL={0x14, 0x2, @ipv4}]}, 0x34}}, 0x0) 13:00:51 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x0) sendmsg$kcm(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000700)=[{&(0x7f0000000000)="240000001e0081aee4050c00000f10fe070101000000000063da9a9a1cae18c1eebd11da", 0x24}], 0x1}, 0x0) recvmsg$kcm(r0, &(0x7f0000000380)={0x0, 0x0, 0x0}, 0x0) 13:00:51 executing program 3: r0 = socket$netlink(0x10, 0x3, 0x4) sendmsg$netlink(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000140)=[{&(0x7f0000000180)=ANY=[@ANYBLOB="6c00000012000501000000000000000014000000000000000000000000000000000000012500008004000000ab02f81c5802ab6002d1f7a30400d6a238c0eb489ede2c5290ff526e5300000020000180084700000a"], 0x6c}], 0x1}, 0x0) 13:00:51 executing program 4: r0 = openat$uinput(0xffffffffffffff9c, &(0x7f0000000040)='/dev/uinput\x00', 0x0, 0x0) ioctl$UI_DEV_SETUP(r0, 0x405c5503, &(0x7f00000002c0)={{}, 'syz0\x00'}) ioctl$UI_DEV_CREATE(r0, 0x5501) ioctl$UI_SET_KEYBIT(r0, 0x40045565, 0x0) 13:00:51 executing program 5: unshare(0x400) r0 = socket$inet_udplite(0x2, 0x2, 0x88) dup(r0) userfaultfd(0x0) open(&(0x7f00000004c0)='./file0\x00', 0x4008040, 0x0) syz_open_dev$sg(&(0x7f0000000280)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$midi(&(0x7f0000000000)='/dev/midi#\x00', 0x2, 0x2) pselect6(0x40, &(0x7f00000000c0), 0x0, &(0x7f0000000140)={0x1ff}, &(0x7f0000000200), 0x0) [ 40.433880][ T8707] IPVS: ftp: loaded support on port[0] = 21 [ 40.477670][ T5068] ================================================================== [ 40.485788][ T5068] BUG: KCSAN: data-race in get_task_mm / page_cache_readahead_unbounded [ 40.494087][ T5068] [ 40.496405][ T5068] write to 0xffff88812b786064 of 4 bytes by task 1 on cpu 1: [ 40.503758][ T5068] page_cache_readahead_unbounded+0xa6/0x470 [ 40.509731][ T5068] ondemand_readahead+0x4e4/0x6e0 [ 40.514739][ T5068] page_cache_sync_readahead+0x178/0x1a0 [ 40.520355][ T5068] generic_file_buffered_read+0x2ec/0x1f60 [ 40.526129][ T5068] generic_file_read_iter+0x7d/0x3e0 [ 40.531390][ T5068] ext4_file_read_iter+0x2d8/0x420 [ 40.536481][ T5068] __kernel_read+0x3cf/0x600 [ 40.541060][ T5068] integrity_kernel_read+0x4c/0x70 [ 40.546158][ T5068] ima_calc_file_hash+0x9bf/0x13e0 [ 40.551256][ T5068] ima_collect_measurement+0x168/0x310 [ 40.553627][ T8707] chnl_net:caif_netlink_parms(): no params data found [ 40.556713][ T5068] process_measurement+0xa65/0x10d0 [ 40.568613][ T5068] ima_file_check+0x75/0xa0 [ 40.573106][ T5068] path_openat+0x1887/0x20a0 [ 40.577718][ T5068] do_filp_open+0xbd/0x1d0 [ 40.582138][ T5068] do_sys_openat2+0x33b/0x500 [ 40.586815][ T5068] __x64_sys_open+0xe2/0x110 [ 40.591503][ T5068] do_syscall_64+0x39/0x80 [ 40.595905][ T5068] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.600399][ T8707] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.601777][ T5068] [ 40.608862][ T8707] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.611087][ T5068] read to 0xffff88812b786064 of 4 bytes by task 5068 on cpu 0: [ 40.611101][ T5068] get_task_mm+0x3e/0x90 [ 40.611111][ T5068] proc_pid_cmdline_read+0x82/0x670 [ 40.611125][ T5068] vfs_read+0x16d/0x5e0 [ 40.618781][ T8707] device bridge_slave_0 entered promiscuous mode [ 40.625633][ T5068] ksys_read+0xce/0x180 [ 40.625641][ T5068] __x64_sys_read+0x3e/0x50 [ 40.625649][ T5068] do_syscall_64+0x39/0x80 [ 40.625660][ T5068] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.625667][ T5068] [ 40.633007][ T8707] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.635069][ T5068] Reported by Kernel Concurrency Sanitizer on: [ 40.639207][ T8707] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.645492][ T5068] CPU: 0 PID: 5068 Comm: systemd-journal Not tainted 5.9.0-rc5-syzkaller #0 [ 40.645497][ T5068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.645501][ T5068] ================================================================== [ 40.645505][ T5068] Kernel panic - not syncing: panic_on_warn set ... [ 40.645514][ T5068] CPU: 0 PID: 5068 Comm: systemd-journal Not tainted 5.9.0-rc5-syzkaller #0 [ 40.645519][ T5068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.645521][ T5068] Call Trace: [ 40.645540][ T5068] dump_stack+0x10f/0x19d [ 40.653890][ T8707] device bridge_slave_1 entered promiscuous mode [ 40.654137][ T5068] panic+0x207/0x64a [ 40.667268][ T8707] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 40.673685][ T5068] ? vprintk_emit+0x44a/0x4f0 [ 40.673699][ T5068] kcsan_report+0x684/0x690 [ 40.673716][ T5068] ? kcsan_setup_watchpoint+0x41e/0x4a0 [ 40.681398][ T8707] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 40.686955][ T5068] ? get_task_mm+0x3e/0x90 [ 40.704387][ T8707] team0: Port device team_slave_0 added [ 40.705708][ T5068] ? proc_pid_cmdline_read+0x82/0x670 [ 40.715426][ T8707] team0: Port device team_slave_1 added [ 40.720296][ T5068] ? vfs_read+0x16d/0x5e0 [ 40.720303][ T5068] ? ksys_read+0xce/0x180 [ 40.720311][ T5068] ? __x64_sys_read+0x3e/0x50 [ 40.720320][ T5068] ? do_syscall_64+0x39/0x80 [ 40.720342][ T5068] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.739231][ T8707] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 40.742288][ T5068] ? __rcu_read_unlock+0x4b/0x260 [ 40.742299][ T5068] ? __rcu_read_unlock+0x4b/0x260 [ 40.742317][ T5068] kcsan_setup_watchpoint+0x41e/0x4a0 [ 40.747062][ T8707] 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. [ 40.752916][ T5068] ? __rcu_read_unlock+0x4b/0x260 [ 40.752928][ T5068] get_task_mm+0x3e/0x90 [ 40.752944][ T5068] proc_pid_cmdline_read+0x82/0x670 [ 40.757630][ T8707] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 40.765796][ T5068] ? security_file_permission+0x87/0xa0 [ 40.765806][ T5068] ? rw_verify_area+0x12c/0x240 [ 40.765816][ T5068] ? comm_show+0xd0/0xd0 [ 40.765833][ T5068] vfs_read+0x16d/0x5e0 [ 40.772149][ T8707] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 40.775012][ T5068] ? __fget_light+0xd0/0x260 [ 40.780688][ T8707] 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. [ 40.790292][ T5068] ksys_read+0xce/0x180 [ 40.790302][ T5068] __x64_sys_read+0x3e/0x50 [ 40.790312][ T5068] do_syscall_64+0x39/0x80 [ 40.790330][ T5068] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.795636][ T8707] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 40.800269][ T5068] RIP: 0033:0x7f549d1dc910 [ 40.800281][ T5068] Code: b6 fe ff ff 48 8d 3d 0f be 08 00 48 83 ec 08 e8 06 db 01 00 66 0f 1f 44 00 00 83 3d f9 2d 2c 00 00 75 10 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 de 9b 01 00 48 89 04 24 [ 40.800286][ T5068] RSP: 002b:00007ffe2877fad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 40.800295][ T5068] RAX: ffffffffffffffda RBX: 00005618136c94a0 RCX: 00007f549d1dc910 [ 40.800301][ T5068] RDX: 0000000000000400 RSI: 00005618136c96d0 RDI: 0000000000000016 [ 40.800306][ T5068] RBP: 0000000000000d68 R08: 0000000000000003 R09: 0000000000000410 [ 40.800311][ T5068] R10: 00007f549d49ac88 R11: 0000000000000246 R12: 00007f549d497440 [ 40.800316][ T5068] R13: 00007f549d496900 R14: 0000000000000000 R15: 00007ffe2877fba0 [ 40.801443][ T5068] Kernel Offset: disabled [ 41.070796][ T5068] Rebooting in 86400 seconds..