Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 10.365620] random: sshd: uninitialized urandom read (32 bytes read) [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 11.509569] random: crng init done Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.67' (ECDSA) to the list of known hosts. net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 RTNETLINK answers: Operation not supported net.ipv6.conf.syz_tun.router_solicitations = 0 RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Error: argument "bridge0" is wrong: Device does not exist RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Error: argument "bridge0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Error: argument "bridge0" is wrong: Device does not exist Error: argument "bridge0" is wrong: Device does not exist RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "veth0_to_bridge" Error: argument "bridge0" is wrong: Device does not exist Error: argument "bridge0" is wrong: Device does not exist Cannot find device "veth0_to_bridge" RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Error: argument "bridge0" is wrong: Device does not exist Error: argument "bridge0" is wrong: Device does not exist Cannot find device "veth1_to_bridge" RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "veth1_to_bridge" Cannot find device "veth0_to_bridge" RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "veth0_to_bridge" Error: argument "bridge0" is wrong: Device does not exist Cannot find device "veth1_to_bridge" Error: argument "bond0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Error: argument "bridge0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Cannot find device "veth1_to_bridge" Error: argument "bond0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Error: argument "bridge0" is wrong: Device does not exist Error: argument "bridge0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Error: argument "bond0" is wrong: Device does not exist Cannot find device "veth0_to_bond" RTNETLINK answers: Operation not supported Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Error: argument "bond0" is wrong: Device does not exist Error: argument "bond0" is wrong: Device does not exist Cannot find device "veth1_to_bond" Error: argument "bond0" is wrong: Device does not exist Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Error: argument "bond0" is wrong: Device does not exist RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "veth0_to_bond" Error: argument "bond0" is wrong: Device does not exist RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "veth1_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bond" Error: argument "team0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Error: argument "bond0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Error: argument "team0" is wrong: Device does not exist Cannot find device "veth1_to_bond" Error: argument "bond0" is wrong: Device does not exist Cannot find device "veth1_to_bond" Error: argument "bond0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Cannot find device "veth0_to_team" RTNETLINK answers: Operation not supported Error: argument "bond0" is wrong: Device does not exist Error: argument "team0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Cannot find device "veth0_to_bond" RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "veth1_to_team" Cannot find device "veth0_to_bond" Error: argument "team0" is wrong: Device does not exist Error: argument "team0" is wrong: Device does not exist Cannot find device "veth1_to_bond" Error: argument "team0" is wrong: Device does not exist Cannot find device "veth1_to_bond" RTNETLINK answers: Operation not supported Cannot find device "veth0_to_team" Error: argument "team0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Cannot find device "bridge_slave_0" Error: argument "team0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Cannot find device "bridge_slave_1" Error: argument "team0" is wrong: Device does not exist Cannot find device "veth0_to_team" Cannot find device "veth0_to_team" Cannot find device "veth1_to_team" Error: argument "team0" is wrong: Device does not exist Cannot find device "veth1_to_team" Cannot find device "veth1_to_team" RTNETLINK answers: Operation not supported Cannot find device "veth0_to_team" Cannot find device "bridge_slave_0" Cannot find device "bridge_slave_0" Cannot find device "bridge_slave_0" Error: argument "team0" is wrong: Device does not exist Cannot find device "veth1_to_team" Cannot find device "bridge_slave_1" Cannot find device "bridge_slave_1" Cannot find device "bridge_slave_1" Error: argument "team0" is wrong: Device does not exist Cannot find device "bridge_slave_0" Cannot find device "veth0_to_team" Cannot find device "bridge_slave_1" RTNETLINK answers: Operation not supported Cannot find device "veth1_to_team" RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "bridge0" Cannot find device "bridge_slave_0" RTNETLINK answers: Operation not supported Cannot find device "bridge0" Cannot find device "bridge_slave_1" Cannot find device "bridge0" Cannot find device "bridge0" RTNETLINK answers: Operation not supported Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "bridge0" RTNETLINK answers: Operation not supported Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "tunl0" Cannot find device "tunl0" Cannot find device "vcan0" Cannot find device "tunl0" Cannot find device "vcan0" Cannot find device "tunl0" Cannot find device "tunl0" Cannot find device "bridge0" Cannot find device "tunl0" Cannot find device "tunl0" Cannot find device "vcan0" Cannot find device "tunl0" Cannot find device "vcan0" Cannot find device "tunl0" Cannot find device "tunl0" Cannot find device "vcan0" Cannot find device "tunl0" Cannot find device "tunl0" Cannot find device "tunl0" Cannot find device "tunl0" Cannot find device "tunl0" Cannot find device "tunl0" Cannot find device "vcan0" Cannot find device "gre0" Cannot find device "tunl0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "vcan0" Cannot find device "tunl0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "tunl0" Cannot find device "gre0" Cannot find device "tunl0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "tunl0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "tunl0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "tunl0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "tunl0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "gretap0" RTNETLINK answers: Operation not supported Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument Cannot find device "gretap0" RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument Cannot find device "ip6gre0" Cannot find device "ip6gre0" RTNETLINK answers: Invalid argument Cannot find device "ip6gre0" RTNETLINK answers: Invalid argument Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" RTNETLINK answers: Invalid argument Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gretap0" RTNETLINK answers: Invalid argument Cannot find device "ip6gretap0" Cannot find device "ip6gre0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gre0" Cannot find device "ip6gretap0" Cannot find device "ip6gre0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gre0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "bond0" Cannot find device "erspan0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "erspan0" Cannot find device "bond0" Cannot find device "erspan0" Cannot find device "bond0" Cannot find device "erspan0" Cannot find device "veth0" Cannot find device "erspan0" Cannot find device "veth0" Cannot find device "erspan0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "erspan0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "veth0" Cannot find device "veth0" Cannot find device "veth0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "veth0" Cannot find device "bond0" Cannot find device "veth0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "veth0" Cannot find device "veth0" Cannot find device "veth0" Cannot find device "veth0" Cannot find device "bond0" Cannot find device "veth0" Cannot find device "veth0" Cannot find device "veth1" Cannot find device "veth0" Cannot find device "veth0" Cannot find device "veth0" Cannot find device "bond0" Cannot find device "veth1" Cannot find device "veth1" Cannot find device "veth0" Cannot find device "veth0" Cannot find device "veth1" Cannot find device "veth1" Cannot find device "veth0" Cannot find device "veth0" Cannot find device "veth1" Cannot find device "veth0" Cannot find device "veth1" Cannot find device "veth1" Cannot find device "veth0" Cannot find device "veth1" Cannot find device "veth1" Cannot find device "veth1" Cannot find device "veth1" Cannot find device "veth0" Cannot find device "veth1" Cannot find device "veth1" Cannot find device "veth1" Cannot find device "veth1" Cannot find device "team0" Cannot find device "team0" Cannot find device "veth0" Cannot find device "veth1" Cannot find device "team0" Cannot find device "veth1" Cannot find device "team0" Cannot find device "veth1" Cannot find device "veth1" Cannot find device "team0" Cannot find device "team0" Cannot find device "veth1" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "veth1" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "veth1" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "veth0_to_bridge" Cannot find device "veth1" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "team0" Cannot find device "team0" Cannot find device "veth0_to_bridge" Cannot find device "team0" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "team0" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "team0" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "team0" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth0_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth0_to_bond" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bridge" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth1_to_bridge" Cannot find device "veth0_to_bond" Cannot find device "veth1_to_bridge" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth1_to_bridge" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_bridge" Cannot find device "veth0_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth0_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth0_to_team" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth0_to_team" Cannot find device "veth0_to_team" Cannot find device "veth0_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth0_to_team" Cannot find device "veth0_to_team" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_bond" Cannot find device "veth0_to_team" Cannot find device "veth0_to_team" Cannot find device "veth0_to_team" Cannot find device "veth1_to_bond" Cannot find device "veth0_to_team" Cannot find device "veth0_to_team" Cannot find device "veth0_to_team" Cannot find device "veth0_to_team" Cannot find device "veth0_to_team" Cannot find device "veth1_to_team" Cannot find device "veth0_to_team" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_team" Cannot find device "veth0_to_team" Cannot find device "veth0_to_team" Cannot find device "veth1_to_team" Cannot find device "veth0_to_team" Cannot find device "veth0_to_team" Cannot find device "veth1_to_team" Cannot find device "veth0_to_team" Cannot find device "veth1_to_bond" Cannot find device "veth1_to_team" Cannot find device "veth1_to_team" Cannot find device "veth1_to_team" Cannot find device "veth1_to_team" Cannot find device "veth0_to_team" Cannot find device "veth1_to_team" Cannot find device "veth1_to_team" Cannot find device "veth0_to_team" syzkaller login: [ 41.929309] audit: type=1400 audit(1537640173.745:5): avc: denied { associate } for pid=2063 comm="syz-executor888" name="syz1" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 Cannot find device "veth1_to_team" Cannot find device "veth1_to_team" executing program Cannot find device "veth1_to_team" Cannot find device "veth0_to_team" Cannot find device "veth1_to_team" Cannot find device "veth1_to_team" executing program Cannot find device "veth1_to_team" Cannot find device "veth0_to_team" executing program Cannot find device "veth1_to_team" Cannot find device "veth1_to_team" Cannot find device "veth0_to_team" executing program Cannot find device "veth1_to_team" executing program Cannot find device "veth1_to_team" executing program Cannot find device "veth1_to_team" executing program executing program Cannot find device "veth1_to_team" executing program executing program Cannot find device "veth1_to_team" Cannot find device "veth1_to_team" executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 44.487860] [ 44.489566] ====================================================== [ 44.495869] [ INFO: possible circular locking dependency detected ] [ 44.502256] 4.9.128+ #45 Not tainted [ 44.505945] ------------------------------------------------------- [ 44.512317] syz-executor888/5205 is trying to acquire lock: [ 44.518008] (&sig->cred_guard_mutex){+.+.+.}, at: [] do_io_accounting+0x1fb/0x7e0 [ 44.527613] but task is already holding lock: [ 44.532252] (&p->lock){+.+.+.}, at: [] seq_read+0xdd/0x12d0 [ 44.540144] which lock already depends on the new lock. [ 44.540144] [ 44.547125] [ 44.547125] the existing dependency chain (in reverse order) is: [ 44.554719] -> #2 (&p->lock){+.+.+.}: [ 44.559153] lock_acquire+0x130/0x3e0 [ 44.563448] mutex_lock_nested+0xc0/0x870 [ 44.568089] seq_read+0xdd/0x12d0 [ 44.572035] proc_reg_read+0xfd/0x180 [ 44.576344] do_loop_readv_writev.part.1+0xd5/0x280 [ 44.581854] do_readv_writev+0x56e/0x7b0 [ 44.586406] vfs_readv+0x84/0xc0 [ 44.590266] default_file_splice_read+0x44b/0x7e0 [ 44.595600] do_splice_to+0x10c/0x170 [ 44.599906] SyS_splice+0x10d2/0x14d0 [ 44.604205] do_fast_syscall_32+0x2f1/0x860 [ 44.609026] entry_SYSENTER_compat+0x90/0xa2 [ 44.613929] -> #1 (&pipe->mutex/1){+.+.+.}: [ 44.619021] lock_acquire+0x130/0x3e0 [ 44.623329] mutex_lock_nested+0xc0/0x870 [ 44.627970] fifo_open+0x15c/0x9e0 [ 44.632003] do_dentry_open+0x3ef/0xc90 [ 44.636468] vfs_open+0x11c/0x210 [ 44.640411] path_openat+0x542/0x2790 [ 44.644717] do_filp_open+0x197/0x270 [ 44.649023] do_open_execat+0x10f/0x640 [ 44.653488] do_execveat_common.isra.15+0x687/0x1f80 [ 44.659085] compat_SyS_execve+0x48/0x60 [ 44.663639] do_fast_syscall_32+0x2f1/0x860 [ 44.668469] entry_SYSENTER_compat+0x90/0xa2 [ 44.673364] -> #0 (&sig->cred_guard_mutex){+.+.+.}: [ 44.678998] __lock_acquire+0x3189/0x4a10 [ 44.683636] lock_acquire+0x130/0x3e0 [ 44.687936] mutex_lock_killable_nested+0xcc/0x960 [ 44.693372] do_io_accounting+0x1fb/0x7e0 [ 44.698014] proc_tgid_io_accounting+0x22/0x30 [ 44.703087] proc_single_show+0xfd/0x170 [ 44.707639] traverse+0x363/0x920 [ 44.711584] seq_read+0xd1b/0x12d0 [ 44.715616] __vfs_read+0x115/0x560 [ 44.719733] vfs_read+0x124/0x390 [ 44.723675] SyS_pread64+0x145/0x170 [ 44.727882] sys32_pread+0x39/0x50 [ 44.731913] do_fast_syscall_32+0x2f1/0x860 [ 44.736735] entry_SYSENTER_compat+0x90/0xa2 [ 44.741631] [ 44.741631] other info that might help us debug this: [ 44.741631] [ 44.749742] Chain exists of: &sig->cred_guard_mutex --> &pipe->mutex/1 --> &p->lock [ 44.758861] Possible unsafe locking scenario: [ 44.758861] [ 44.764918] CPU0 CPU1 [ 44.769561] ---- ---- [ 44.774197] lock(&p->lock); [ 44.777511] lock(&pipe->mutex/1); [ 44.783993] lock(&p->lock); [ 44.789829] lock(&sig->cred_guard_mutex); [ 44.794379] [ 44.794379] *** DEADLOCK *** [ 44.794379] [ 44.800411] 1 lock held by syz-executor888/5205: [ 44.805137] #0: (&p->lock){+.+.+.}, at: [] seq_read+0xdd/0x12d0 [ 44.813413] [ 44.813413] stack backtrace: [ 44.817897] CPU: 0 PID: 5205 Comm: syz-executor888 Not tainted 4.9.128+ #45 [ 44.824968] ffff8801d3e5f518 ffffffff81af2469 ffffffff83aa8440 ffffffff83aa2ad0 [ 44.832945] ffffffff83aa1180 ffff8801d3e2b850 ffff8801d3e2af80 ffff8801d3e5f560 [ 44.841020] ffffffff813e79ed 0000000000000001 00000000d3e2b830 0000000000000001 [ 44.849001] Call Trace: [ 44.851559] [] dump_stack+0xc1/0x128 [ 44.856898] [] print_circular_bug.cold.36+0x2f7/0x432 [ 44.863723] [] __lock_acquire+0x3189/0x4a10 [ 44.869666] [] ? trace_hardirqs_on+0x10/0x10 [ 44.875697] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 44.882595] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 44.889405] [] lock_acquire+0x130/0x3e0 [ 44.895001] [] ? do_io_accounting+0x1fb/0x7e0 [ 44.901119] [] mutex_lock_killable_nested+0xcc/0x960 [ 44.907861] [] ? do_io_accounting+0x1fb/0x7e0 [ 44.914011] [] ? finish_task_switch+0x1ed/0x640 [ 44.920314] [] ? finish_task_switch+0x1c1/0x640 [ 44.926606] [] ? do_io_accounting+0x1fb/0x7e0 [ 44.932725] [] ? _mutex_lock_nest_lock+0x870/0x870 [ 44.939276] [] ? trace_hardirqs_on+0x10/0x10 [ 44.945311] [] ? trace_hardirqs_on+0x10/0x10 [ 44.951349] [] do_io_accounting+0x1fb/0x7e0 [ 44.957298] [] ? futex_wait_queue_me+0x3d1/0x5c0 [ 44.963680] [] ? proc_uid_map_open+0x30/0x30 [ 44.969715] [] ? check_preemption_disabled+0x3b/0x170 [ 44.976529] [] ? get_pid_task+0x9b/0x140 [ 44.982214] [] proc_tgid_io_accounting+0x22/0x30 [ 44.988590] [] proc_single_show+0xfd/0x170 [ 44.994445] [] traverse+0x363/0x920 [ 44.999694] [] ? seq_buf_alloc+0x80/0x80 [ 45.005377] [] seq_read+0xd1b/0x12d0 [ 45.010714] [] ? do_futex+0x175/0x1840 [ 45.016225] [] ? seq_lseek+0x3c0/0x3c0 [ 45.021754] [] ? trace_hardirqs_on+0x10/0x10 [ 45.027827] [] ? fsnotify+0x114/0x1100 [ 45.033347] [] __vfs_read+0x115/0x560 [ 45.038770] [] ? seq_lseek+0x3c0/0x3c0 [ 45.044287] [] ? clone_verify_area+0x220/0x220 [ 45.050489] [] ? __fsnotify_inode_delete+0x30/0x30 [ 45.057040] [] ? __fsnotify_update_child_dentry_flags.part.0+0x300/0x300 [ 45.065501] [] ? avc_policy_seqno+0x9/0x20 [ 45.071359] [] ? selinux_file_permission+0x82/0x470 [ 45.078000] [] ? security_file_permission+0x8f/0x1e0 [ 45.084725] [] ? rw_verify_area+0xe5/0x2a0 [ 45.090595] [] vfs_read+0x124/0x390 [ 45.095843] [] SyS_pread64+0x145/0x170 [ 45.101351] [] ? SyS_write+0x1c0/0x1c0 [ 45.106863] [] ? up_read+0x1a/0x40 [ 45.112028] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 45.118319] [] sys32_pread+0x39/0x50 [ 45.123655] [] ? sys32_waitpid+0x30/0x30 [ 45.129339] [] do_fast_syscall_32+0x2f1/0x860 executing program executing program executing program executing program executing program [ 45.135459] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.142096] [] entry_SYSENTER_compat+0x90/0xa2 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program