I0813 16:51:02.955322 49265 x:0] *************************** I0813 16:51:02.957175 49265 x:0] Args: [/syzkaller/managers/ptrace-proxy-sandbox-race/current/image -root /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root -watchdog-action=panic -network=none -platform=ptrace -file-access=proxy -network=sandbox exec -user=0:0 -cap CAP_CHOWN -cap CAP_DAC_OVERRIDE -cap CAP_DAC_READ_SEARCH -cap CAP_FOWNER -cap CAP_FSETID -cap CAP_KILL -cap CAP_SETGID -cap CAP_SETUID -cap CAP_SETPCAP -cap CAP_LINUX_IMMUTABLE -cap CAP_NET_BIND_SERVICE -cap CAP_NET_BROADCAST -cap CAP_NET_ADMIN -cap CAP_NET_RAW -cap CAP_IPC_LOCK -cap CAP_IPC_OWNER -cap CAP_SYS_MODULE -cap CAP_SYS_RAWIO -cap CAP_SYS_CHROOT -cap CAP_SYS_PTRACE -cap CAP_SYS_PACCT -cap CAP_SYS_ADMIN -cap CAP_SYS_BOOT -cap CAP_SYS_NICE -cap CAP_SYS_RESOURCE -cap CAP_SYS_TIME -cap CAP_SYS_TTY_CONFIG -cap CAP_MKNOD -cap CAP_LEASE -cap CAP_AUDIT_WRITE -cap CAP_AUDIT_CONTROL -cap CAP_SETFCAP -cap CAP_MAC_OVERRIDE -cap CAP_MAC_ADMIN -cap CAP_SYSLOG -cap CAP_WAKE_ALARM -cap CAP_BLOCK_SUSPEND -cap CAP_AUDIT_READ ci-gvisor-ptrace-proxy-sandbox-race-0 /syz-fuzzer -executor=/syz-executor -name=vm-0 -arch=amd64 -manager=stdin -sandbox=none -procs=4 -v=0 -cover=false -debug=false -test=false -runtest=false] I0813 16:51:02.957602 49265 x:0] Git Revision: e4ce26c8b9b168294179f1873e710123bd7e7827 I0813 16:51:02.957728 49265 x:0] PID: 49265 I0813 16:51:02.957816 49265 x:0] UID: 0, GID: 0 I0813 16:51:02.957900 49265 x:0] Configuration: I0813 16:51:02.959342 49265 x:0] RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root I0813 16:51:02.959392 49265 x:0] Platform: ptrace I0813 16:51:02.959449 49265 x:0] FileAccess: proxy, overlay: false I0813 16:51:02.959502 49265 x:0] Network: sandbox, logging: false I0813 16:51:02.959584 49265 x:0] Strace: false, max size: 1024, syscalls: [] I0813 16:51:02.959616 49265 x:0] *************************** I0813 16:51:02.968042 49201 x:0] EXEC: [/syz-fuzzer -executor=/syz-executor -name=vm-0 -arch=amd64 -manager=stdin -sandbox=none -procs=4 -v=0 -cover=false -debug=false -test=false -runtest=false] 2018/08/13 16:51:03 fuzzer started 2018/08/13 16:51:05 dialing manager at stdin 2018/08/13 16:51:06 syscalls: 1 2018/08/13 16:51:06 code coverage: debugfs is not enabled or not mounted 2018/08/13 16:51:06 comparison tracing: debugfs is not enabled or not mounted 2018/08/13 16:51:06 setuid sandbox: enabled 2018/08/13 16:51:06 namespace sandbox: enabled 2018/08/13 16:51:06 fault injection: CONFIG_FAULT_INJECTION is not enabled 2018/08/13 16:51:06 leak checking: debugfs is not enabled or not mounted 2018/08/13 16:51:06 net packed injection: /dev/net/tun does not exist 2018/08/13 16:51:06 net device setup: ip command is not found I0813 16:51:46.915148 49201 x:0] Watchdog starting loop, tasks: 95, discount: 0s 16:52:01 executing program 0: 16:52:01 executing program 1: 16:52:01 executing program 2: 16:52:01 executing program 3: 16:52:01 executing program 0: r0 = socket(0x40000000015, 0x5, 0x0) setsockopt$sock_int(r0, 0x1, 0x1d, &(0x7f0000000040)=0x1, 0x4) bind$inet(r0, &(0x7f0000000840)={0x2, 0x4e20, @loopback}, 0x10) r1 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r1, 0x8912, &(0x7f0000000280)="025cc80700145f8f764070") sendto$inet(r0, &(0x7f0000000e40), 0x0, 0x0, &(0x7f00000004c0)={0x2, 0x0, @loopback}, 0x10) recvmmsg(r0, &(0x7f0000003f80)=[{{0x0, 0x30a, &(0x7f0000000800), 0x0, &(0x7f0000000080)=""/168, 0xfffffffffffffee2}}], 0x1, 0x0, &(0x7f0000004540)={0x0, 0x989680}) 16:52:02 executing program 3: r0 = socket$inet6_udp(0xa, 0x2, 0x0) getsockopt$inet6_int(r0, 0x29, 0x13, &(0x7f0000000ffc), &(0x7f0000013000)=0x4) 16:52:02 executing program 2: unshare(0x20000000) clone(0x22920102, &(0x7f00000001c0), &(0x7f0000000340), &(0x7f0000000240), &(0x7f0000000280)) 16:52:02 executing program 1: r0 = socket$inet_udp(0x2, 0x2, 0x0) r1 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r1, 0x8912, &(0x7f0000000280)="025c3f0a00145f8f764070") setsockopt$ARPT_SO_SET_ADD_COUNTERS(r0, 0x0, 0x61, &(0x7f0000000180)={'filter\x00', 0x4}, 0x68) 16:52:02 executing program 2: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) capset(&(0x7f00000000c0)={0x19980330}, &(0x7f0000000100)) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400218) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000ab9ff0)={0x2, &(0x7f00000000c0)=[{0x48}, {0x6}]}, 0x10) 16:52:02 executing program 0: perf_event_open(&(0x7f0000000180)={0x0, 0x70, 0x3, 0x0, 0x0, 0x0, 0x0, 0x2}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = openat$urandom(0xffffffffffffff9c, &(0x7f0000000000)='/dev/urandom\x00', 0x0, 0x0) ioctl$RNDZAPENTCNT(r0, 0x5204, &(0x7f0000000040)) 16:52:02 executing program 3: perf_event_open(&(0x7f0000000200)={0x0, 0x70, 0x3, 0x0, 0x0, 0x0, 0x0, 0x8}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x1, 0x0) shutdown(r0, 0x0) recvmmsg(r0, &(0x7f00000066c0), 0xa0d, 0x0, 0x0) 16:52:02 executing program 1: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000200)={0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400218) r1 = socket$inet6(0xa, 0x2000000000001, 0x0) bind$inet6(r1, &(0x7f0000402000)={0xa, 0x4e20, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f00007a8fff), 0x3a7, 0x20000000, &(0x7f00000001c0)={0xa, 0x4e20, 0x0, @loopback}, 0x1c) 16:52:03 executing program 2: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000ab9ff0)={0x2, &(0x7f00000000c0)=[{0x20, 0x0, 0x0, 0xfffffffffffff008}, {0x6}]}, 0x10) 16:52:03 executing program 0: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000ab9ff0)={0x2, &(0x7f00000000c0)=[{0x20, 0x0, 0x0, 0xfffffffffffff014}, {0x6}]}, 0x10) 16:52:03 executing program 3: r0 = socket$inet_udp(0x2, 0x2, 0x0) connect$inet(r0, &(0x7f0000000400)={0x2, 0x0, @remote}, 0x10) r1 = socket(0xa, 0x1, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r1, 0x0, 0x2a, &(0x7f0000000040)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) r2 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r2, 0x8912, &(0x7f0000000280)="025c3f0a00145f8f764070") setsockopt$inet_int(r0, 0x0, 0x32, &(0x7f0000000100), 0x4) 16:52:03 executing program 1: perf_event_open(&(0x7f000001d000)={0x200000002, 0x70, 0x5, 0x108000001, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000380)={0x0, 0x0}) r1 = socket$unix(0x1, 0x5, 0x0) bind$unix(r1, &(0x7f0000000040)=@file={0x1, './file0\x00'}, 0xa) sendmmsg(r0, &(0x7f0000008600)=[{{0x0, 0x0, &(0x7f0000003140)}}, {{&(0x7f00000072c0)=@un=@file={0x1, './file0\x00'}, 0xa, &(0x7f0000000300), 0x1b5, &(0x7f0000000600)}}], 0x2, 0x0) 16:52:04 executing program 2: perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_read_part_table(0xfffffffffffffffe, 0x1, &(0x7f0000000200)=[{&(0x7f0000010000)="000000000000000000000000000000000000000000000000e0e51532000000000200880126000100000064000000000127008e030c00650000006400000000030d00f0043100c90000006400000000043200052020002d010000d306000055aa", 0x60, 0x1a0}]) 16:52:04 executing program 3: 16:52:04 executing program 0: 16:52:04 executing program 1: 16:52:04 executing program 3: 16:52:04 executing program 0: 16:52:04 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000140)='net/ip6_tables_matches\x00') preadv(r0, &(0x7f0000000480)=[{&(0x7f0000000380)=""/242, 0xf2}], 0x2a6, 0x4) 16:52:04 executing program 3: 16:52:04 executing program 2: 16:52:04 executing program 0: 16:52:04 executing program 3: 16:52:04 executing program 0: 16:52:05 executing program 2: 16:52:05 executing program 3: 16:52:05 executing program 1: 16:52:05 executing program 3: 16:52:05 executing program 0: 16:52:05 executing program 2: 16:52:05 executing program 3: 16:52:05 executing program 2: 16:52:05 executing program 0: 16:52:05 executing program 1: pipe2$9p(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RUNLINKAT(r1, &(0x7f0000000040)={0x7}, 0x7) mkdir(&(0x7f0000000300)='./file0\x00', 0x0) mount$9p_fd(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000340)='9p\x00', 0x0, &(0x7f00000001c0)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) write$P9_RREADDIR(r1, &(0x7f0000000480)={0x2a, 0x29, 0x1, {0x0, [{{}, 0x0, 0x0, 0x7, './file0'}]}}, 0x2a) write$P9_RGETATTR(r1, &(0x7f0000000200)={0xa0, 0x19, 0x1}, 0xa0) write$P9_RWALK(r1, &(0x7f0000000140)={0x23, 0x6f, 0x1, {0x2, [{}, {}]}}, 0x23) write$P9_RREADDIR(r1, &(0x7f00000003c0)={0xb, 0x29, 0x1}, 0xb) write$P9_RREADDIR(r1, &(0x7f0000000600)={0xb, 0x29, 0x1}, 0xb) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000900)='9p\x00', 0x0, &(0x7f0000000840)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x2c, {[{@access_uid={'access'}}]}}) r2 = open$dir(&(0x7f0000000580)='./file0\x00', 0x200000, 0x0) symlinkat(&(0x7f0000000540)='./file0\x00', r2, &(0x7f00000005c0)='./file0\x00') 16:52:05 executing program 0: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TCSETS(r0, 0x40045431, &(0x7f0000000140)) r1 = syz_open_pts(r0, 0x0) ioctl$int_in(r1, 0x5452, &(0x7f0000000000)=0x7) r2 = syz_open_pts(r0, 0x0) ioctl$int_in(r2, 0x5452, &(0x7f0000000080)=0x9) dup2(r2, r1) 16:52:05 executing program 2: r0 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r0, 0x8912, &(0x7f0000000280)="025cc80700145f8f764070") mount(&(0x7f0000000240)='./file0\x00', &(0x7f0000000080)='.', &(0x7f0000000800)='9p\x00', 0x0, 0x0) 16:52:05 executing program 3: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400218) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='net\x00') fstat(r1, &(0x7f00000059c0)) 16:52:06 executing program 0: perf_event_open(&(0x7f0000000200)={0x0, 0x70, 0x3, 0x0, 0x0, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000040)='ip6gretap0\x00', 0x10) 16:52:06 executing program 1: socketpair$unix(0x1, 0x8000000000001, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400218) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x4) r1 = socket$inet(0x2, 0x4000000000000001, 0x0) sendto$inet(r1, &(0x7f0000000280), 0x0, 0x200007fd, &(0x7f0000e68000), 0x10) bind$inet(r1, &(0x7f0000000000)={0x2, 0x0, @remote}, 0x10) 16:52:06 executing program 2: socketpair$unix(0x1, 0x8000000000001, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400218) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x4) r1 = socket$inet(0x2, 0x4000000000000001, 0x0) sendto$inet(r1, &(0x7f0000000280), 0x0, 0x200007fd, &(0x7f0000e68000)={0x2, 0x4e23}, 0x10) r2 = fcntl$dupfd(r1, 0x0, r1) getsockopt$sock_buf(r2, 0x1, 0x1c, &(0x7f0000000380)=""/237, &(0x7f0000000040)=0xed) 16:52:06 executing program 3: r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000)='./cgroup.cpu\x00', 0x200002, 0x0) r1 = openat$cgroup_int(r0, &(0x7f0000000080)='cpuset.mem_exclusive\x00', 0x2, 0x0) write$cgroup_subtree(r1, &(0x7f0000000100)=ANY=[@ANYRESDEC, @ANYRESHEX], 0x26) 16:52:07 executing program 0: r0 = socket$inet6(0xa, 0x1, 0x0) ioctl(r0, 0x8912, &(0x7f0000000280)="0a5cc80700315f85714070") r1 = socket$inet6(0xa, 0x8000000000000003, 0x3a) connect$inet6(r1, &(0x7f0000000180)={0xa, 0x0, 0x0, @remote, 0x9}, 0x1c) sendto$inet6(r1, &(0x7f0000000200)="812a77e8", 0x4, 0x0, 0x0, 0x0) 16:52:07 executing program 2: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400218) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000ab9ff0)={0x2, &(0x7f00000000c0)=[{0x20, 0x0, 0x0, 0xfffffffffffff03c}, {0x6}]}, 0x10) 16:52:07 executing program 3: perf_event_open(&(0x7f0000000180)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7fff}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r0, &(0x7f0000000140)={0xa, 0xffffffffffffffff, 0x0, @ipv4={[], [], @dev={0xac, 0x14, 0x14, 0x18}}}, 0x1c) sendmmsg(r0, &(0x7f00000002c0), 0x4cc, 0x20007ffc) 16:52:07 executing program 1: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = syz_open_procfs(0x0, &(0x7f0000000080)='net/bnep\x00') ioctl$sock_inet_tcp_SIOCOUTQNSD(r2, 0x894b, &(0x7f0000000140)) r3 = epoll_create(0x100) epoll_ctl$EPOLL_CTL_ADD(r3, 0x1, r1, &(0x7f00000000c0)) epoll_ctl$EPOLL_CTL_ADD(r3, 0x1, r0, &(0x7f0000000000)) dup3(r0, r3, 0x0) 16:52:08 executing program 0: perf_event_open(&(0x7f0000000180)={0x2, 0x70, 0x3e5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1f}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x2, 0x0) bind(r0, &(0x7f0000000080)=@in={0x2, 0x4e20}, 0x7c) sendto$inet(r0, &(0x7f0000000100), 0x0, 0x0, &(0x7f0000000140)={0x2, 0x18004e20}, 0x10) recvmmsg(r0, &(0x7f0000000780), 0xc4, 0x2, &(0x7f0000000800)={0x0, 0x1c9c380}) 16:52:08 executing program 2: r0 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x4e22, 0x0, @ipv4={[], [], @remote}}, 0x1c) sendmmsg(r0, &(0x7f00000092c0), 0x260, 0x0) 16:52:08 executing program 3: perf_event_open(&(0x7f0000000180)={0x0, 0x70, 0x3, 0x0, 0x0, 0x0, 0x0, 0x2}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mlockall(0x3) creat(&(0x7f00000003c0)='./file0\x00', 0x0) munlockall() 16:52:08 executing program 1: r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f0000000180)=0x40000000000074, 0x315) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000080)='lp\x00', 0x3) bind$inet(r0, &(0x7f00000001c0)={0x2, 0x4e23, @multicast2}, 0x10) sendto$inet(r0, &(0x7f0000a88f88), 0x2f0c, 0x20008001, &(0x7f0000e68000)={0x2, 0x4e23, @loopback}, 0x10) 16:52:09 executing program 0: setsockopt$inet_tcp_int(0xffffffffffffffff, 0x6, 0x0, &(0x7f0000000700), 0xffc9) r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f0000000180)=0x40000000000074, 0x315) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000080)='lp\x00', 0x3) bind$inet(r0, &(0x7f00000001c0)={0x2, 0x4e23, @multicast2}, 0x10) sendto$inet(r0, &(0x7f0000a88f88), 0x2f0c, 0x20008001, &(0x7f0000e68000)={0x2, 0x4e23, @loopback}, 0x10) 16:52:09 executing program 2: setsockopt$inet_tcp_int(0xffffffffffffffff, 0x6, 0x0, &(0x7f0000000700), 0xffc9) perf_event_open(&(0x7f0000000040)={0x0, 0x70}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f0000000180)=0x40000000000074, 0x315) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000080)='lp\x00', 0x3) bind$inet(r0, &(0x7f00000001c0)={0x2, 0x4e23, @multicast2}, 0x10) sendto$inet(r0, &(0x7f0000a88f88), 0x2f0c, 0x20008001, &(0x7f0000e68000)={0x2, 0x4e23, @loopback}, 0x10) 16:52:09 executing program 3: setsockopt$inet_tcp_TCP_CONGESTION(0xffffffffffffffff, 0x6, 0xd, &(0x7f0000000100)='illinois\x00', 0x9) perf_event_open(&(0x7f0000000040)={0x0, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f0000000180)=0x40000000000074, 0x315) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000080)='lp\x00', 0x3) bind$inet(r0, &(0x7f00000001c0)={0x2, 0x4e23, @multicast2}, 0x10) sendto$inet(r0, &(0x7f0000a88f88), 0x2f0c, 0x20008001, &(0x7f0000e68000)={0x2, 0x4e23, @loopback}, 0x10) 16:52:09 executing program 1: r0 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r0, 0x8912, &(0x7f00000005c0)="0a5cc80700315f85714070") r1 = socket$inet_udp(0x2, 0x2, 0x0) io_setup(0x800, &(0x7f0000000000)=0x0) io_submit(r2, 0x1, &(0x7f0000000240)=[&(0x7f00000001c0)={0x0, 0x0, 0x0, 0x0, 0x0, r1, &(0x7f0000000040)}]) io_getevents(r2, 0x0, 0x1, &(0x7f0000000280)=[{}], &(0x7f0000000040)) 16:52:10 executing program 0: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TCSETS(r0, 0x40045431, &(0x7f00000001c0)) r1 = syz_open_pts(r0, 0x0) ioctl$TCSETSW(r1, 0x5435, &(0x7f0000002000)) 16:52:10 executing program 2: r0 = socket$inet6(0xa, 0x40000080806, 0x0) bind$inet6(r0, &(0x7f000047b000)={0xa, 0x4e20}, 0x1c) listen(r0, 0x100000000007f) r1 = socket$inet6(0xa, 0x6, 0x0) bind$inet6(r1, &(0x7f0000000140)={0xa, 0x0, 0x0, @dev, 0x3}, 0x1c) connect$inet6(r1, &(0x7f0000419000)={0xa, 0x4e20, 0x0, @dev={0xfe, 0x80, [], 0xf}}, 0x1b) 16:52:10 executing program 3: r0 = socket$inet6(0xa, 0x2, 0x0) r1 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r1, 0x8912, &(0x7f0000000280)="0a5cc80700315f85714070") connect$inet6(r0, &(0x7f0000000400)={0xa, 0x0, 0x0, @dev, 0x5}, 0x1c) sendmsg(r0, &(0x7f0000014fc8)={&(0x7f0000006ff0)=@in={0x2, 0x4e23, @local={0xac, 0x14, 0xffffffffffffffff}}, 0x80, &(0x7f0000000040), 0x0, &(0x7f000001ef80)=[{0x18, 0x0, 0x7, "440805"}], 0x18}, 0x0) 16:52:10 executing program 1: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000000)='bbr\x00', 0x4) socket$inet6(0xa, 0x0, 0x0) bind$inet(r0, &(0x7f00000000c0)={0x2, 0x4e20, @multicast2}, 0x10) sendto$inet(r0, &(0x7f0000000200), 0xfffffffffffffeb4, 0x20008011, &(0x7f0000db4ff0)={0x2, 0x4e20, @loopback, [0x2]}, 0x10) recvfrom(r0, &(0x7f0000f9cf9b)=""/101, 0x6478c8501c739e53, 0x120, 0x0, 0x4f) 16:52:11 executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000000)='bbr\x00', 0x4) r1 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r1, 0x100008912, &(0x7f0000000100)="025cc80700145f8f764070") bind$inet(r0, &(0x7f00000000c0)={0x2, 0x4e20, @multicast2}, 0x10) sendto$inet(r0, &(0x7f0000000200), 0xfffffffffffffeb4, 0x20008011, &(0x7f0000db4ff0)={0x2, 0x4e20, @loopback, [0x2]}, 0x10) recvfrom(r0, &(0x7f0000f9cf9b)=""/101, 0x6478c8501c739e53, 0x120, 0x0, 0x4f) 16:52:11 executing program 2: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000200)={0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400218) socketpair(0x8000000000001e, 0x1, 0x0, &(0x7f000000dff8)={0xffffffffffffffff, 0xffffffffffffffff}) poll(&(0x7f00001a8fe8)=[{r1}], 0x1, 0x4b) 16:52:11 executing program 3: r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f00000003c0)='./cgroup\x00', 0x200002, 0x0) fchdir(r0) r1 = creat(&(0x7f0000000000)='./file1\x00', 0x0) fallocate(r1, 0x1, 0x0, 0x80004005eee) 16:52:11 executing program 1: r0 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r0, 0x100008912, &(0x7f0000000100)="025cc80700145f8f764070") r1 = socket$inet6_tcp(0xa, 0x1, 0x0) bind$inet6(r1, &(0x7f0000000000)={0xa, 0x4e22}, 0x1c) listen(r1, 0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r2, &(0x7f0000000280), 0x0, 0x20000004, &(0x7f000031e000)={0xa, 0x4e22, 0x0, @ipv4={[], [], @dev={0xac, 0x14, 0x14, 0x20}}}, 0x1c) setsockopt$inet6_tcp_int(r2, 0x6, 0xc, &(0x7f0000000080)=0xfffffffe, 0x4) 16:52:12 executing program 0: r0 = socket$inet(0x10, 0x400000000000003, 0x6) recvmmsg(r0, &(0x7f00000037c0)=[{{&(0x7f0000002c00)=@ethernet={0x0, @broadcast}, 0x80, &(0x7f0000003180), 0x0, &(0x7f0000003200)=""/233, 0xe9}}, {{&(0x7f0000003580)=@l2, 0x80, &(0x7f00000036c0), 0x0, &(0x7f0000003700)=""/139, 0x8b}}], 0x2, 0x0, 0x0) r1 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r1, 0x8912, &(0x7f0000000280)="0a5cc80700315f85714070") sendmsg(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000004000)=[{&(0x7f00000000c0)="1b0000001200030207fffd946fa283080700190000000000000085", 0x1b}], 0x1}, 0x0) 16:52:12 executing program 2: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) mount(&(0x7f0000000180)='./file0\x00', &(0x7f0000026ff8)='./file0\x00', &(0x7f0000000300)='ramfs\x00', 0x0, &(0x7f0000000380)) r0 = socket$inet(0x2, 0x2, 0x0) ioctl(r0, 0x8912, &(0x7f0000000200)="027bc80700145f8f764070") mount(&(0x7f0000d04000)='./file0\x00', &(0x7f0000903000)='./file0\x00', &(0x7f0000000340)='\x00\x00\x00\x00\x00', 0x100000, &(0x7f00000002c0)) mkdir(&(0x7f0000001500)='./file0/file0\x00', 0x0) mount(&(0x7f0000000f00)='./file0/file0\x00', &(0x7f0000000f40)='./file0/file0\x00', &(0x7f0000000140)='vxfs\x00', 0x3080, &(0x7f00000003c0)) mount(&(0x7f00000001c0)='./file0\x00', &(0x7f0000000240)='./file0/file0\x00', &(0x7f00000002c0)='nilfs2\x00', 0x1008, &(0x7f00000003c0)) umount2(&(0x7f0000000380)='./file0\x00', 0x2) 16:52:12 executing program 3: r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000180)='./cgroup\x00', 0x200002, 0x0) r1 = openat$cgroup_int(r0, &(0x7f0000000200)='cgroup.max.descendants\x00', 0x2, 0x0) r2 = openat$cgroup_ro(r0, &(0x7f0000000080)='pids.events\x00', 0x0, 0x0) r3 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r3, 0x8912, &(0x7f0000000280)="0a5cc80700315f85714070") sendfile(r1, r2, 0x0, 0x4) 16:52:12 executing program 1: r0 = socket$inet6(0xa, 0x6, 0x0) listen(r0, 0x0) r1 = socket$inet(0x10, 0x3, 0x4) sendmsg(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f000000d000)=[{&(0x7f0000000300)="4c0000001300ff09fffefd956fa283b70007ffff00000000000000683540150024001d001fc41180b598bc593ab6821148a730de33a49868c62b2ca654a6613b6aabf35d4c1cbc882b079881", 0x4c}], 0x1}, 0x0) 16:52:12 executing program 0: r0 = socket$inet6(0xa, 0x100800000000002, 0x0) connect$inet6(r0, &(0x7f0000000100)={0xa, 0x0, 0x0, @dev, 0x4}, 0x1c) r1 = syz_open_procfs(0x0, &(0x7f00000000c0)='net/wireless\x00') connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @ipv4={[], [], @loopback}}, 0x1c) setsockopt$inet6_IPV6_ADDRFORM(r0, 0x29, 0x1, &(0x7f0000000080), 0x4) sendfile(r0, r1, &(0x7f0000000040), 0xcb49) 16:52:13 executing program 2: r0 = socket$inet_tcp(0x2, 0x1, 0x0) bind$inet(r0, &(0x7f00000000c0)={0x2, 0x4e20, @broadcast}, 0x10) sendto$inet(r0, &(0x7f0000000200), 0xfffffffffffffeb4, 0x2000800e, &(0x7f0000db4ff0)={0x2, 0x4e20, @loopback, [0x2]}, 0x10) recvfrom(r0, &(0x7f0000000180)=""/101, 0xffffffffffffff9e, 0x11c, 0x0, 0x1de) 16:52:13 executing program 1: r0 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r0, 0x8912, &(0x7f0000000280)="0a5cc80700315f85714070") r1 = socket$inet_udp(0x2, 0x2, 0x0) connect$inet(r1, &(0x7f0000000000)={0x2, 0x0, @remote}, 0x10) setsockopt$sock_timeval(r1, 0x1, 0x23, &(0x7f0000000140)={0x77359400}, 0x332) 16:52:13 executing program 3: 16:52:13 executing program 3: unshare(0x20000000) clone(0x0, &(0x7f0000000380), &(0x7f0000000080), &(0x7f0000c35ffc), &(0x7f0000000540)) wait4(0x0, 0x0, 0x40000000, &(0x7f0000781f70)) clone(0x0, &(0x7f00000003c0), &(0x7f0000000500), &(0x7f0000000300), &(0x7f0000000340)) 16:52:13 executing program 0: r0 = socket(0x440000000002, 0x3, 0x80000000002) r1 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r1, 0x8912, &(0x7f0000000280)="0a5cc80700315f85714070") setsockopt$inet_int(r0, 0x0, 0x3, &(0x7f0000000100)=0x4, 0x4) sendto$unix(r0, &(0x7f0000000cc0), 0x3b2, 0x4044800, &(0x7f0000000d00)=@abs, 0x6e) 16:52:13 executing program 2: r0 = dup(0xffffffffffffffff) r1 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.cpu\x00', 0x200002, 0x0) fchdir(r1) r2 = creat(&(0x7f0000000700)='./bus\x00', 0x0) fcntl$setown(r1, 0x8, 0x0) ftruncate(r2, 0x800007) getsockopt$sock_cred(r0, 0x1, 0x11, &(0x7f0000000200), &(0x7f0000000240)=0xc) r3 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0) sendfile(r2, r3, &(0x7f0000d83ff8), 0x8000fffffffe) 16:52:13 executing program 1: fcntl$getownex(0xffffffffffffffff, 0x10, &(0x7f0000000280)) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.cpu\x00', 0x200002, 0x0) fchdir(r0) r1 = creat(&(0x7f0000000700)='./bus\x00', 0x0) ftruncate(r1, 0x800007) stat(&(0x7f0000000140)='./bus\x00', &(0x7f0000000180)) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000200), &(0x7f0000000240)=0xc) r2 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0) sendfile(r1, r2, &(0x7f0000d83ff8), 0x8000fffffffe) fsync(r1) 16:52:14 executing program 3: 16:52:14 executing program 3: 16:52:14 executing program 3: 16:52:14 executing program 3: r0 = socket$inet6(0xa, 0x801, 0x0) ioctl(r0, 0x8912, &(0x7f0000000280)="0a5cc80700315f85714070") msync(&(0x7f0000952000/0x2000)=nil, 0x87abbe8d1cc6ad9, 0x0) 16:52:14 executing program 0: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TCSETS(r0, 0x40045431, &(0x7f00003b9fdc)) ioctl$TIOCPKT(r0, 0x5420, &(0x7f00000001c0)=0x10000000000065) read(r0, &(0x7f0000000040)=""/11, 0xb) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000100)) r1 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000140)) epoll_ctl$EPOLL_CTL_MOD(r1, 0x3, r0, &(0x7f0000000080)) r2 = syz_open_pts(r0, 0x0) poll(&(0x7f0000000000)=[{r1}], 0x1, 0x0) ioctl$TCXONC(r2, 0x540a, 0x0) 16:52:14 executing program 2: 16:52:14 executing program 2: 16:52:15 executing program 1: 16:52:15 executing program 2: 16:52:15 executing program 3: 16:52:15 executing program 1: 16:52:15 executing program 3: ================== WARNING: DATA RACE Write at 0x00c4207c81b8 by goroutine 511: gvisor.googlesource.com/gvisor/pkg/waiter.(*Entry).SetNext() bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:164 +0x50 gvisor.googlesource.com/gvisor/pkg/ilist.(*List).PushBack() bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:72 +0xee gvisor.googlesource.com/gvisor/pkg/waiter.(*Queue).EventRegister() pkg/waiter/waiter.go:172 +0x86 gvisor.googlesource.com/gvisor/pkg/sentry/fs/tty.(*masterFileOperations).EventRegister() pkg/sentry/fs/tty/master.go:127 +0x8b gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).EventRegister() pkg/sentry/fs/file.go:177 +0x6a gvisor.googlesource.com/gvisor/pkg/sentry/kernel/epoll.(*EventPoll).initEntryReadiness() pkg/sentry/kernel/epoll/epoll.go:315 +0x11f gvisor.googlesource.com/gvisor/pkg/sentry/kernel/epoll.(*EventPoll).AddEntry() pkg/sentry/kernel/epoll/epoll.go:398 +0x440 gvisor.googlesource.com/gvisor/pkg/sentry/syscalls.AddEpoll() pkg/sentry/syscalls/epoll.go:67 +0x162 gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.EpollCtl() pkg/sentry/syscalls/linux/sys_epoll.go:100 +0x252 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall() pkg/sentry/kernel/task_syscall.go:162 +0x14e gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke() pkg/sentry/kernel/task_syscall.go:280 +0x7d gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter() pkg/sentry/kernel/task_syscall.go:241 +0xc3 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall() pkg/sentry/kernel/task_syscall.go:216 +0x19e gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute() pkg/sentry/kernel/task_run.go:219 +0x1501 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run() pkg/sentry/kernel/task_run.go:95 +0x264 Previous write at 0x00c4207c81b8 by goroutine 45: gvisor.googlesource.com/gvisor/pkg/waiter.(*Entry).SetNext() bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:164 +0x50 gvisor.googlesource.com/gvisor/pkg/ilist.(*List).PushBack() bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:68 +0x4a gvisor.googlesource.com/gvisor/pkg/waiter.(*Queue).EventRegister() pkg/waiter/waiter.go:172 +0x86 gvisor.googlesource.com/gvisor/pkg/sentry/fs/tty.(*masterFileOperations).EventRegister() pkg/sentry/fs/tty/master.go:128 +0xe1 gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).EventRegister() pkg/sentry/fs/file.go:177 +0x6a gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.readv() pkg/sentry/syscalls/linux/sys_read.go:202 +0x3cb gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Read() pkg/sentry/syscalls/linux/sys_read.go:67 +0x295 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall() pkg/sentry/kernel/task_syscall.go:162 +0x14e gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke() pkg/sentry/kernel/task_syscall.go:280 +0x7d gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter() pkg/sentry/kernel/task_syscall.go:241 +0xc3 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall() pkg/sentry/kernel/task_syscall.go:216 +0x19e gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute() pkg/sentry/kernel/task_run.go:219 +0x1501 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run() pkg/sentry/kernel/task_run.go:95 +0x264 Goroutine 511 (running) created at: gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start() pkg/sentry/kernel/task_start.go:258 +0x193 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Clone() pkg/sentry/kernel/task_clone.go:319 +0x10f1 gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.clone() pkg/sentry/syscalls/linux/sys_thread.go:157 +0x22e gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Clone() pkg/sentry/syscalls/linux/sys_thread.go:171 +0x80 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall() pkg/sentry/kernel/task_syscall.go:162 +0x14e gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke() pkg/sentry/kernel/task_syscall.go:280 +0x7d gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter() pkg/sentry/kernel/task_syscall.go:241 +0xc3 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall() pkg/sentry/kernel/task_syscall.go:216 +0x19e gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute() pkg/sentry/kernel/task_run.go:219 +0x1501 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run() pkg/sentry/kernel/task_run.go:95 +0x264 Goroutine 45 (running) created at: gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start() pkg/sentry/kernel/task_start.go:258 +0x193 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Clone() pkg/sentry/kernel/task_clone.go:319 +0x10f1 gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.clone() pkg/sentry/syscalls/linux/sys_thread.go:157 +0x22e gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Clone() pkg/sentry/syscalls/linux/sys_thread.go:171 +0x80 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall() pkg/sentry/kernel/task_syscall.go:162 +0x14e gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke() pkg/sentry/kernel/task_syscall.go:280 +0x7d gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter() pkg/sentry/kernel/task_syscall.go:241 +0xc3 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall() pkg/sentry/kernel/task_syscall.go:216 +0x19e gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute() pkg/sentry/kernel/task_run.go:219 +0x1501 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run() pkg/sentry/kernel/task_run.go:95 +0x264 ================== W0813 16:52:15.725142 49265 x:0] FATAL ERROR: error getting processes for container: error executing in sandbox: urpc method "containerManager.Execute" failed: EOF error getting processes for container: error executing in sandbox: urpc method "containerManager.Execute" failed: EOF W0813 16:52:15.725200 49193 x:0] FATAL ERROR: error running container: error waiting on container "ci-gvisor-ptrace-proxy-sandbox-race-0": urpc method "containerManager.Wait" failed: EOF error running container: error waiting on container "ci-gvisor-ptrace-proxy-sandbox-race-0": urpc method "containerManager.Wait" failed: EOF