[ 32.639184] audit: type=1800 audit(1564902681.203:33): pid=6900 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 32.669791] audit: type=1800 audit(1564902681.213:34): pid=6900 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=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 34.449100] random: sshd: uninitialized urandom read (32 bytes read) [ 34.753022] audit: type=1400 audit(1564902683.323:35): avc: denied { map } for pid=7074 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 [ 34.805129] random: sshd: uninitialized urandom read (32 bytes read) [ 35.442696] random: sshd: uninitialized urandom read (32 bytes read) [ 35.638366] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.26' (ECDSA) to the list of known hosts. [ 41.164212] random: sshd: uninitialized urandom read (32 bytes read) [ 41.347785] audit: type=1400 audit(1564902689.913:36): avc: denied { map } for pid=7087 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 2019/08/04 07:11:30 parsed 1 programs [ 42.212580] audit: type=1400 audit(1564902690.783:37): avc: denied { map } for pid=7087 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=13765 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 42.932145] random: cc1: uninitialized urandom read (8 bytes read) 2019/08/04 07:11:32 executed programs: 0 [ 44.101063] IPVS: ftp: loaded support on port[0] = 21 [ 44.918850] chnl_net:caif_netlink_parms(): no params data found [ 44.950130] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.957034] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.964288] device bridge_slave_0 entered promiscuous mode [ 44.971620] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.978004] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.985194] device bridge_slave_1 entered promiscuous mode [ 44.999637] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 45.011956] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 45.028616] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 45.036128] team0: Port device team_slave_0 added [ 45.041597] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 45.048699] team0: Port device team_slave_1 added [ 45.054102] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 45.061385] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 45.122243] device hsr_slave_0 entered promiscuous mode [ 45.170357] device hsr_slave_1 entered promiscuous mode [ 45.210827] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 45.217939] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 45.231520] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.237977] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.245072] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.251554] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.279517] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 45.286555] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.294961] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.303536] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.323445] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.330951] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.340925] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 45.347078] 8021q: adding VLAN 0 to HW filter on device team0 [ 45.357612] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.365729] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.372172] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.381681] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.389340] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.395732] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.408974] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 45.419121] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 45.428280] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 45.439337] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.450372] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 45.461217] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 45.467244] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 45.474336] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.485760] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 45.496202] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 45.911394] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 46.851872] overlayfs: workdir and upperdir must reside under the same mount [ 46.862333] overlayfs: workdir and upperdir must reside under the same mount [ 46.924121] overlayfs: workdir and upperdir must reside under the same mount [ 46.933597] overlayfs: workdir and upperdir must reside under the same mount [ 46.970385] overlayfs: workdir and upperdir must reside under the same mount [ 46.980171] overlayfs: workdir and upperdir must reside under the same mount [ 47.037240] overlayfs: workdir and upperdir must reside under the same mount [ 47.048232] overlayfs: workdir and upperdir must reside under the same mount [ 47.083840] overlayfs: workdir and upperdir must reside under the same mount [ 47.092853] overlayfs: workdir and upperdir must reside under the same mount [ 47.128879] overlayfs: workdir and upperdir must reside under the same mount [ 47.139473] overlayfs: workdir and upperdir must reside under the same mount [ 47.208053] overlayfs: workdir and upperdir must reside under the same mount [ 47.217572] overlayfs: workdir and upperdir must reside under the same mount [ 47.268770] overlayfs: workdir and upperdir must reside under the same mount [ 47.278035] overlayfs: workdir and upperdir must reside under the same mount [ 47.341362] overlayfs: workdir and upperdir must reside under the same mount [ 47.351741] overlayfs: workdir and upperdir must reside under the same mount [ 47.410430] overlayfs: workdir and upperdir must reside under the same mount [ 47.421499] overlayfs: workdir and upperdir must reside under the same mount [ 47.473281] overlayfs: workdir and upperdir must reside under the same mount [ 47.482383] overlayfs: workdir and upperdir must reside under the same mount [ 47.527505] overlayfs: workdir and upperdir must reside under the same mount [ 47.536519] overlayfs: workdir and upperdir must reside under the same mount [ 47.589623] overlayfs: workdir and upperdir must reside under the same mount [ 47.599187] overlayfs: workdir and upperdir must reside under the same mount [ 47.638790] overlayfs: workdir and upperdir must reside under the same mount [ 47.649683] overlayfs: workdir and upperdir must reside under the same mount [ 47.691456] overlayfs: workdir and upperdir must reside under the same mount [ 47.701246] overlayfs: workdir and upperdir must reside under the same mount [ 47.749919] overlayfs: workdir and upperdir must reside under the same mount [ 47.760908] overlayfs: workdir and upperdir must reside under the same mount [ 47.807014] overlayfs: workdir and upperdir must reside under the same mount [ 47.816384] overlayfs: workdir and upperdir must reside under the same mount [ 47.877635] overlayfs: workdir and upperdir must reside under the same mount [ 47.887440] overlayfs: workdir and upperdir must reside under the same mount [ 47.937616] overlayfs: workdir and upperdir must reside under the same mount [ 47.946402] overlayfs: workdir and upperdir must reside under the same mount [ 47.999579] overlayfs: workdir and upperdir must reside under the same mount [ 48.011461] overlayfs: workdir and upperdir must reside under the same mount [ 48.058313] overlayfs: workdir and upperdir must reside under the same mount [ 48.067120] overlayfs: workdir and upperdir must reside under the same mount [ 48.122462] overlayfs: workdir and upperdir must reside under the same mount [ 48.132160] overlayfs: workdir and upperdir must reside under the same mount [ 48.188164] overlayfs: workdir and upperdir must reside under the same mount [ 48.199212] overlayfs: workdir and upperdir must reside under the same mount [ 48.242330] overlayfs: workdir and upperdir must reside under the same mount [ 48.254993] overlayfs: workdir and upperdir must reside under the same mount [ 48.307753] overlayfs: workdir and upperdir must reside under the same mount [ 48.318475] overlayfs: workdir and upperdir must reside under the same mount [ 48.368042] overlayfs: workdir and upperdir must reside under the same mount [ 48.378407] overlayfs: workdir and upperdir must reside under the same mount [ 48.426775] overlayfs: workdir and upperdir must reside under the same mount [ 48.436851] overlayfs: workdir and upperdir must reside under the same mount [ 48.478544] overlayfs: workdir and upperdir must reside under the same mount [ 48.487931] overlayfs: workdir and upperdir must reside under the same mount [ 48.529882] overlayfs: workdir and upperdir must reside under the same mount [ 48.540179] overlayfs: workdir and upperdir must reside under the same mount [ 48.620709] overlayfs: workdir and upperdir must reside under the same mount [ 48.631733] overlayfs: workdir and upperdir must reside under the same mount [ 48.682026] overlayfs: workdir and upperdir must reside under the same mount [ 48.691242] overlayfs: workdir and upperdir must reside under the same mount [ 48.759888] overlayfs: workdir and upperdir must reside under the same mount [ 48.770603] overlayfs: workdir and upperdir must reside under the same mount 2019/08/04 07:11:37 executed programs: 33 [ 48.836356] overlayfs: workdir and upperdir must reside under the same mount [ 48.845701] overlayfs: workdir and upperdir must reside under the same mount [ 48.899976] overlayfs: workdir and upperdir must reside under the same mount [ 48.909561] overlayfs: fs on './file1' does not support file handles, falling back to index=off. [ 48.919266] overlayfs: upper fs does not support tmpfile. [ 48.925035] overlayfs: upper fs does not support xattr. [ 48.935013] ------------[ cut here ]------------ [ 48.940098] WARNING: CPU: 0 PID: 7260 at fs/overlayfs/dir.c:1045 ovl_rename+0xc9d/0xeb0 [ 48.948312] Kernel panic - not syncing: panic_on_warn set ... [ 48.948312] [ 48.955676] CPU: 0 PID: 7260 Comm: syz-executor.0 Not tainted 4.14.135 #31 [ 48.962672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.972025] Call Trace: [ 48.974614] dump_stack+0x138/0x19c [ 48.978330] panic+0x1f2/0x426 [ 48.981518] ? add_taint.cold+0x16/0x16 [ 48.985582] ? ovl_rename+0xc9d/0xeb0 [ 48.989764] ? ovl_rename+0xc9d/0xeb0 [ 48.993549] __warn.cold+0x2f/0x36 [ 48.997477] ? ist_end_non_atomic+0x10/0x10 [ 49.001791] ? ovl_rename+0xc9d/0xeb0 [ 49.005628] report_bug+0x216/0x254 [ 49.009253] do_error_trap+0x1bb/0x310 [ 49.013138] ? math_error+0x360/0x360 [ 49.016937] ? d_lookup+0x166/0x240 [ 49.020582] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.025416] do_invalid_op+0x1b/0x20 [ 49.029123] invalid_op+0x1b/0x40 [ 49.032576] RIP: 0010:ovl_rename+0xc9d/0xeb0 [ 49.037151] RSP: 0018:ffff8880a19efb68 EFLAGS: 00010297 [ 49.042732] RAX: ffff8880a131a500 RBX: ffff888088a5bb40 RCX: 1ffff1101343e2f7 [ 49.050018] RDX: 0000000000000000 RSI: ffff88809a1f1760 RDI: ffff88809a1f17b8 [ 49.057281] RBP: ffff8880a19efc50 R08: ffff8880a131a500 R09: 0000000000000007 [ 49.064692] R10: 0000000000000000 R11: ffff8880a131a500 R12: ffff8880889a5ce0 [ 49.071953] R13: ffff8880889281a0 R14: 1ffff1101433df7d R15: 0000000000000000 [ 49.079461] ? ovl_rename+0xc9d/0xeb0 [ 49.083267] ? ovl_check_empty_and_clear+0xe0/0xe0 [ 49.088188] ? down_write_nested+0x3c/0x90 [ 49.092429] ? lock_two_nondirectories+0xb8/0xf0 [ 49.097301] vfs_rename+0x551/0x17d0 [ 49.101008] ? lookup_one_len_unlocked+0x340/0x340 [ 49.105917] ? lookup_dcache+0x5d/0x110 [ 49.109884] ? security_path_rename+0x152/0x2c0 [ 49.114651] SyS_rename+0x610/0x6d0 [ 49.118287] ? SyS_renameat+0x6f0/0x6f0 [ 49.122254] ? nsecs_to_jiffies+0x30/0x30 [ 49.126387] ? SyS_clock_gettime+0xf8/0x180 [ 49.130690] ? do_syscall_64+0x53/0x640 [ 49.134814] ? SyS_renameat+0x6f0/0x6f0 [ 49.138782] do_syscall_64+0x1e8/0x640 [ 49.142707] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.147541] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.152979] RIP: 0033:0x459829 [ 49.156346] RSP: 002b:00007f9f3bc2ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [ 49.164150] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000000000459829 [ 49.171554] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000020000400 [ 49.178808] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 49.186067] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9f3bc2f6d4 [ 49.193370] R13: 00000000004c6da0 R14: 00000000004dc138 R15: 00000000ffffffff [ 49.201926] Kernel Offset: disabled [ 49.205726] Rebooting in 86400 seconds..