./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2322009694 <...> Warning: Permanently added '10.128.0.230' (ECDSA) to the list of known hosts. execve("./syz-executor2322009694", ["./syz-executor2322009694"], 0x7ffe95ceaf40 /* 10 vars */) = 0 brk(NULL) = 0x555555f25000 brk(0x555555f25c40) = 0x555555f25c40 arch_prctl(ARCH_SET_FS, 0x555555f25300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2322009694", 4096) = 28 brk(0x555555f46c40) = 0x555555f46c40 brk(0x555555f47000) = 0x555555f47000 mprotect(0x7f8428163000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 mkdir("/syzcgroup", 0777) = 0 mkdir("/syzcgroup/unified", 0777) = 0 mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL) = 0 chmod("/syzcgroup/unified", 0777) = 0 openat(AT_FDCWD, "/syzcgroup/unified/cgroup.subtree_control", O_WRONLY) = 3 write(3, "+cpu", 4) = 4 write(3, "+memory", 7) = 7 write(3, "+io", 3) = 3 write(3, "+pids", 5) = 5 close(3) = 0 mkdir("/syzcgroup/net", 0777) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "net") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "devices") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "blkio") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "freezer") = 0 umount2("/syzcgroup/net", 0) = 0 [ 49.799372][ T3600] cgroup: Unknown subsys name 'net' mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = 0 chmod("/syzcgroup/net", 0777) = 0 mkdir("/syzcgroup/cpu", 0777) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "hugetlb") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "rlimit") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb") = ? ERESTARTNOINTR (To be restarted) [ 49.950609][ T3600] cgroup: Unknown subsys name 'rlimit' mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb") = 0 chmod("/syzcgroup/cpu", 0777) = 0 openat(AT_FDCWD, "/syzcgroup/cpu/cgroup.clone_children", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/syzcgroup/cpu/cpuset.memory_pressure_enabled", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/failslab/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/ignore-private", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/min-order", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555f255d0) = 3601 ./strace-static-x86_64: Process 3601 attached [pid 3600] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] getpid() = 3601 [pid 3601] mkdir("./syzkaller.XpGHkw", 0700 [pid 3600] <... clone resumed>, child_tidptr=0x555555f255d0) = 3602 [pid 3600] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3602 attached [pid 3601] <... mkdir resumed>) = 0 [pid 3601] chmod("./syzkaller.XpGHkw", 0777 [pid 3600] <... clone resumed>, child_tidptr=0x555555f255d0) = 3603 [pid 3601] <... chmod resumed>) = 0 [pid 3600] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] chdir("./syzkaller.XpGHkw" [pid 3602] getpid( [pid 3601] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 3603 attached [pid 3602] <... getpid resumed>) = 3602 [pid 3601] unshare(CLONE_NEWPID [pid 3600] <... clone resumed>, child_tidptr=0x555555f255d0) = 3604 [pid 3600] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... unshare resumed>) = 0 [pid 3602] mkdir("./syzkaller.Dxxgkz", 0700 [pid 3600] <... clone resumed>, child_tidptr=0x555555f255d0) = 3605 [pid 3602] <... mkdir resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3600] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3602] chmod("./syzkaller.Dxxgkz", 0777 [pid 3601] <... clone resumed>, child_tidptr=0x555555f255d0) = 3607 [pid 3600] <... clone resumed>, child_tidptr=0x555555f255d0) = 3606 ./strace-static-x86_64: Process 3605 attached [pid 3602] <... chmod resumed>) = 0 [pid 3602] chdir("./syzkaller.Dxxgkz"./strace-static-x86_64: Process 3606 attached ) = 0 [pid 3602] unshare(CLONE_NEWPID [pid 3605] getpid( [pid 3606] getpid() = 3606 [pid 3605] <... getpid resumed>) = 3605 ./strace-static-x86_64: Process 3607 attached [pid 3603] getpid( [pid 3602] <... unshare resumed>) = 0 [pid 3606] mkdir("./syzkaller.MQT5fT", 0700 [pid 3603] <... getpid resumed>) = 3603 [pid 3602] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3605] mkdir("./syzkaller.ACspjL", 0700 [pid 3602] <... clone resumed>, child_tidptr=0x555555f255d0) = 3608 [pid 3603] mkdir("./syzkaller.45Mz4C", 0700 [pid 3607] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL./strace-static-x86_64: Process 3604 attached [pid 3604] getpid() = 3604 [pid 3606] <... mkdir resumed>) = 0 [pid 3607] <... mount resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 3608 attached [pid 3605] <... mkdir resumed>) = 0 [pid 3604] mkdir("./syzkaller.WOXV5H", 0700 [pid 3605] chmod("./syzkaller.ACspjL", 0777 [pid 3603] <... mkdir resumed>) = 0 [pid 3607] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3603] chmod("./syzkaller.45Mz4C", 0777 [pid 3608] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 3606] chmod("./syzkaller.MQT5fT", 0777 [pid 3608] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 3607] <... prctl resumed>) = 0 [pid 3605] <... chmod resumed>) = 0 [pid 3604] <... mkdir resumed>) = 0 [pid 3603] <... chmod resumed>) = 0 [pid 3605] chdir("./syzkaller.ACspjL" [pid 3603] chdir("./syzkaller.45Mz4C" [pid 3605] <... chdir resumed>) = 0 [pid 3603] <... chdir resumed>) = 0 [pid 3605] unshare(CLONE_NEWPID [pid 3603] unshare(CLONE_NEWPID) = 0 [pid 3605] <... unshare resumed>) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] setsid( [pid 3604] chmod("./syzkaller.WOXV5H", 0777 [pid 3608] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3607] <... setsid resumed>) = 1 [pid 3604] <... chmod resumed>) = 0 [pid 3603] <... clone resumed>, child_tidptr=0x555555f255d0) = 3609 ./strace-static-x86_64: Process 3610 attached ./strace-static-x86_64: Process 3609 attached [pid 3608] <... prctl resumed>) = 0 [pid 3607] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 3606] <... chmod resumed>) = 0 [pid 3604] chdir("./syzkaller.WOXV5H" [pid 3605] <... clone resumed>, child_tidptr=0x555555f255d0) = 3610 [pid 3607] <... prlimit64 resumed>NULL) = 0 [pid 3604] <... chdir resumed>) = 0 [pid 3604] unshare(CLONE_NEWPID [pid 3607] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 3604] <... unshare resumed>) = 0 [pid 3607] <... prlimit64 resumed>NULL) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 3609] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 3607] <... prlimit64 resumed>NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 3604] <... clone resumed>, child_tidptr=0x555555f255d0) = 3611 [pid 3608] setsid( [pid 3607] <... prlimit64 resumed>NULL) = 0 [pid 3608] <... setsid resumed>) = 1 [pid 3607] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 3607] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 3606] chdir("./syzkaller.MQT5fT" [pid 3608] <... prlimit64 resumed>NULL) = 0 [pid 3607] <... prlimit64 resumed>NULL) = 0 [pid 3609] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 3608] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 3607] unshare(CLONE_NEWNS [pid 3606] <... chdir resumed>) = 0 [pid 3609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3609] setsid() = 1 [pid 3609] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3608] <... prlimit64 resumed>NULL) = 0 [pid 3607] <... unshare resumed>) = 0 [pid 3606] unshare(CLONE_NEWPID [pid 3607] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 3608] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 3609] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3607] <... mount resumed>) = 0 [pid 3608] <... prlimit64 resumed>NULL) = 0 [pid 3607] unshare(CLONE_NEWIPC [pid 3606] <... unshare resumed>) = 0 [pid 3609] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3609] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3609] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3609] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 3607] <... unshare resumed>) = 0 [pid 3608] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3609] <... prlimit64 resumed>NULL) = 0 [pid 3610] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 3609] unshare(CLONE_NEWNS [pid 3608] <... prlimit64 resumed>NULL) = 0 ./strace-static-x86_64: Process 3612 attached ./strace-static-x86_64: Process 3611 attached [pid 3610] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 3609] <... unshare resumed>) = 0 [pid 3608] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, [pid 3607] unshare(CLONE_NEWCGROUP [pid 3608] <... prlimit64 resumed>NULL) = 0 [pid 3610] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3609] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 3608] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 3607] <... unshare resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555555f255d0) = 3612 [pid 3608] <... prlimit64 resumed>NULL) = 0 [pid 3607] unshare(CLONE_NEWUTS [pid 3608] unshare(CLONE_NEWNS [pid 3607] <... unshare resumed>) = 0 [pid 3610] <... prctl resumed>) = 0 [pid 3609] <... mount resumed>) = 0 [pid 3608] <... unshare resumed>) = 0 [pid 3607] unshare(CLONE_SYSVSEM [pid 3608] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3607] <... unshare resumed>) = 0 [pid 3610] setsid( [pid 3609] unshare(CLONE_NEWIPC [pid 3608] unshare(CLONE_NEWIPC [pid 3610] <... setsid resumed>) = 1 [pid 3609] <... unshare resumed>) = 0 [pid 3608] <... unshare resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 3612] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 3608] unshare(CLONE_NEWCGROUP [pid 3610] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 3609] unshare(CLONE_NEWCGROUP [pid 3610] <... prlimit64 resumed>NULL) = 0 [pid 3608] <... unshare resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3612] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 3610] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 3609] <... unshare resumed>) = 0 [pid 3608] unshare(CLONE_NEWUTS [pid 3607] write(3, "16777216", 8 [pid 3612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3610] <... prlimit64 resumed>NULL) = 0 [pid 3608] <... unshare resumed>) = 0 [pid 3610] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 3609] unshare(CLONE_NEWUTS [pid 3612] <... prctl resumed>) = 0 [pid 3608] unshare(CLONE_SYSVSEM [pid 3607] <... write resumed>) = 8 [pid 3610] <... prlimit64 resumed>NULL) = 0 [pid 3609] <... unshare resumed>) = 0 [pid 3608] <... unshare resumed>) = 0 [pid 3607] close(3 [pid 3612] setsid( [pid 3610] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 3609] unshare(CLONE_SYSVSEM [pid 3610] <... prlimit64 resumed>NULL) = 0 [pid 3609] <... unshare resumed>) = 0 [pid 3612] <... setsid resumed>) = 1 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 3607] <... close resumed>) = 0 [pid 3611] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 3610] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 3612] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 3610] <... prlimit64 resumed>NULL) = 0 [pid 3611] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 3609] <... openat resumed>) = 3 [pid 3608] <... openat resumed>) = 3 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 3612] <... prlimit64 resumed>NULL) = 0 [pid 3611] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3610] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 3609] write(3, "16777216", 8 [pid 3608] write(3, "16777216", 8 [pid 3612] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 3611] <... prctl resumed>) = 0 [pid 3610] <... prlimit64 resumed>NULL) = 0 [pid 3609] <... write resumed>) = 8 [pid 3608] <... write resumed>) = 8 [pid 3607] <... openat resumed>) = 3 [pid 3612] <... prlimit64 resumed>NULL) = 0 [pid 3611] setsid( [pid 3610] unshare(CLONE_NEWNS [pid 3609] close(3 [pid 3608] close(3 [pid 3607] write(3, "536870912", 9 [pid 3612] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 3611] <... setsid resumed>) = 1 [pid 3610] <... unshare resumed>) = 0 [pid 3609] <... close resumed>) = 0 [pid 3608] <... close resumed>) = 0 [pid 3607] <... write resumed>) = 9 [pid 3612] <... prlimit64 resumed>NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 3610] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 3607] close(3 [pid 3612] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 3611] <... prlimit64 resumed>NULL) = 0 [pid 3610] <... mount resumed>) = 0 [pid 3609] <... openat resumed>) = 3 [pid 3608] <... openat resumed>) = 3 [pid 3607] <... close resumed>) = 0 [pid 3612] <... prlimit64 resumed>NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 3610] unshare(CLONE_NEWIPC [pid 3609] write(3, "536870912", 9 [pid 3608] write(3, "536870912", 9 [pid 3612] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, [pid 3611] <... prlimit64 resumed>NULL) = 0 [pid 3610] <... unshare resumed>) = 0 [pid 3609] <... write resumed>) = 9 [pid 3608] <... write resumed>) = 9 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 3612] <... prlimit64 resumed>NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 3610] unshare(CLONE_NEWCGROUP [pid 3609] close(3 [pid 3608] close(3 [pid 3612] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 3611] <... prlimit64 resumed>NULL) = 0 [pid 3610] <... unshare resumed>) = 0 [pid 3609] <... close resumed>) = 0 [pid 3608] <... close resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3612] <... prlimit64 resumed>NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 3610] unshare(CLONE_NEWUTS [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 3607] write(3, "1024", 4 [pid 3612] unshare(CLONE_NEWNS [pid 3611] <... prlimit64 resumed>NULL) = 0 [pid 3610] <... unshare resumed>) = 0 [pid 3609] <... openat resumed>) = 3 [pid 3610] unshare(CLONE_SYSVSEM [pid 3609] write(3, "1024", 4 [pid 3608] <... openat resumed>) = 3 [pid 3607] <... write resumed>) = 4 [pid 3610] <... unshare resumed>) = 0 [pid 3609] <... write resumed>) = 4 [pid 3612] <... unshare resumed>) = 0 [pid 3611] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 3609] close(3 [pid 3608] write(3, "1024", 4 [pid 3607] close(3 [pid 3612] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 3611] <... prlimit64 resumed>NULL) = 0 [pid 3610] <... openat resumed>) = 3 [pid 3609] <... close resumed>) = 0 [pid 3608] <... write resumed>) = 4 [pid 3612] <... mount resumed>) = 0 [pid 3611] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 3610] write(3, "16777216", 8 [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 3608] close(3 [pid 3607] <... close resumed>) = 0 [pid 3612] unshare(CLONE_NEWIPC [pid 3611] <... prlimit64 resumed>NULL) = 0 [pid 3610] <... write resumed>) = 8 [pid 3608] <... close resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 3612] <... unshare resumed>) = 0 [pid 3611] unshare(CLONE_NEWNS [pid 3610] close(3 [pid 3609] <... openat resumed>) = 3 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 3607] <... openat resumed>) = 3 [pid 3612] unshare(CLONE_NEWCGROUP [pid 3611] <... unshare resumed>) = 0 [pid 3610] <... close resumed>) = 0 [pid 3609] write(3, "8192", 4 [pid 3608] <... openat resumed>) = 3 [pid 3607] write(3, "8192", 4 [pid 3612] <... unshare resumed>) = 0 [pid 3611] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 3609] <... write resumed>) = 4 [pid 3608] write(3, "8192", 4 [pid 3607] <... write resumed>) = 4 [pid 3612] unshare(CLONE_NEWUTS [pid 3611] <... mount resumed>) = 0 [pid 3610] <... openat resumed>) = 3 [pid 3608] <... write resumed>) = 4 [pid 3607] close(3 [pid 3609] close(3 [pid 3612] <... unshare resumed>) = 0 [pid 3611] unshare(CLONE_NEWIPC [pid 3610] write(3, "536870912", 9 [pid 3608] close(3 [pid 3607] <... close resumed>) = 0 [pid 3612] unshare(CLONE_SYSVSEM [pid 3611] <... unshare resumed>) = 0 [pid 3610] <... write resumed>) = 9 [pid 3609] <... close resumed>) = 0 [pid 3608] <... close resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 3612] <... unshare resumed>) = 0 [pid 3611] unshare(CLONE_NEWCGROUP [pid 3610] close(3 [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 3607] <... openat resumed>) = 3 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 3611] <... unshare resumed>) = 0 [pid 3610] <... close resumed>) = 0 [pid 3609] <... openat resumed>) = 3 [pid 3608] <... openat resumed>) = 3 [pid 3607] write(3, "1024", 4 [pid 3612] <... openat resumed>) = 3 [pid 3611] unshare(CLONE_NEWUTS [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 3609] write(3, "1024", 4 [pid 3608] write(3, "1024", 4 [pid 3607] <... write resumed>) = 4 [pid 3612] write(3, "16777216", 8 [pid 3611] <... unshare resumed>) = 0 [pid 3610] <... openat resumed>) = 3 [pid 3609] <... write resumed>) = 4 [pid 3608] <... write resumed>) = 4 [pid 3607] close(3 [pid 3612] <... write resumed>) = 8 [pid 3611] unshare(CLONE_SYSVSEM [pid 3610] write(3, "1024", 4 [pid 3609] close(3 [pid 3608] close(3 [pid 3607] <... close resumed>) = 0 [pid 3612] close(3 [pid 3611] <... unshare resumed>) = 0 [pid 3610] <... write resumed>) = 4 [pid 3609] <... close resumed>) = 0 [pid 3608] <... close resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 3612] <... close resumed>) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 3610] close(3 [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 3607] <... openat resumed>) = 3 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 3611] <... openat resumed>) = 3 [pid 3610] <... close resumed>) = 0 [pid 3609] <... openat resumed>) = 3 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 3609] write(3, "1024", 4 [pid 3608] <... openat resumed>) = 3 [pid 3612] <... openat resumed>) = 3 [pid 3611] write(3, "16777216", 8 [pid 3610] <... openat resumed>) = 3 [pid 3609] <... write resumed>) = 4 [pid 3608] write(3, "1024", 4 [pid 3607] write(3, "1024", 4 [pid 3612] write(3, "536870912", 9 [pid 3611] <... write resumed>) = 8 [pid 3610] write(3, "8192", 4 [pid 3609] close(3 [pid 3608] <... write resumed>) = 4 [pid 3607] <... write resumed>) = 4 [pid 3612] <... write resumed>) = 9 [pid 3611] close(3 [pid 3610] <... write resumed>) = 4 [pid 3609] <... close resumed>) = 0 [pid 3608] close(3 [pid 3612] close(3 [pid 3611] <... close resumed>) = 0 [pid 3610] close(3 [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 3608] <... close resumed>) = 0 [pid 3607] close(3 [pid 3612] <... close resumed>) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 3610] <... close resumed>) = 0 [pid 3609] <... openat resumed>) = 3 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 3607] <... close resumed>) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 3611] <... openat resumed>) = 3 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 3609] write(3, "1024 1048576 500 1024", 21 [pid 3612] <... openat resumed>) = 3 [pid 3611] write(3, "536870912", 9 [pid 3610] <... openat resumed>) = 3 [pid 3609] <... write resumed>) = 21 [pid 3608] <... openat resumed>) = 3 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 3612] write(3, "1024", 4 [pid 3611] <... write resumed>) = 9 [pid 3610] write(3, "1024", 4 [pid 3609] close(3 [pid 3608] write(3, "1024 1048576 500 1024", 21 [pid 3612] <... write resumed>) = 4 [pid 3611] close(3 [pid 3610] <... write resumed>) = 4 [pid 3609] <... close resumed>) = 0 [pid 3608] <... write resumed>) = 21 [pid 3607] <... openat resumed>) = 3 [pid 3612] close(3 [pid 3611] <... close resumed>) = 0 [pid 3610] close(3 [pid 3609] getpid( [pid 3608] close(3 [pid 3607] write(3, "1024 1048576 500 1024", 21 [pid 3612] <... close resumed>) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 3610] <... close resumed>) = 0 [pid 3609] <... getpid resumed>) = 1 [pid 3608] <... close resumed>) = 0 [pid 3607] <... write resumed>) = 21 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 3609] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 3611] <... openat resumed>) = 3 [pid 3610] <... openat resumed>) = 3 [pid 3609] <... capget resumed>{effective=1< [pid 3607] close(3 [pid 3610] write(3, "1024", 4 [pid 3609] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 3612] <... openat resumed>) = 3 [pid 3610] <... write resumed>) = 4 [pid 3609] <... capset resumed>) = 0 [pid 3611] write(3, "1024", 4 [pid 3608] <... getpid resumed>) = 1 [pid 3607] <... close resumed>) = 0 [pid 3612] write(3, "8192", 4 [pid 3611] <... write resumed>) = 4 [pid 3610] close(3 [pid 3609] unshare(CLONE_NEWNET [pid 3608] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 3607] getpid( [pid 3612] <... write resumed>) = 4 [pid 3611] close(3 [pid 3610] <... close resumed>) = 0 [pid 3608] <... capget resumed>{effective=1<) = 1 [pid 3612] close(3 [pid 3611] <... close resumed>) = 0 [pid 3608] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 3607] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 3612] <... close resumed>) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 3608] <... capset resumed>) = 0 [pid 3607] <... capget resumed>{effective=1< [pid 3611] <... openat resumed>) = 3 [pid 3608] unshare(CLONE_NEWNET [pid 3607] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 3612] <... openat resumed>) = 3 [pid 3611] write(3, "8192", 4 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 3607] <... capset resumed>) = 0 [pid 3612] write(3, "1024", 4 [pid 3611] <... write resumed>) = 4 [pid 3610] <... openat resumed>) = 3 [pid 3607] unshare(CLONE_NEWNET [pid 3612] <... write resumed>) = 4 [pid 3611] close(3 [pid 3610] write(3, "1024 1048576 500 1024", 21 [pid 3612] close(3 [pid 3611] <... close resumed>) = 0 [pid 3612] <... close resumed>) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 3610] <... write resumed>) = 21 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 3611] <... openat resumed>) = 3 [pid 3612] <... openat resumed>) = 3 [pid 3611] write(3, "1024", 4 [pid 3610] close(3 [pid 3612] write(3, "1024", 4 [pid 3611] <... write resumed>) = 4 [pid 3612] <... write resumed>) = 4 [pid 3611] close(3 [pid 3610] <... close resumed>) = 0 [pid 3612] close(3 [pid 3611] <... close resumed>) = 0 [pid 3610] getpid( [pid 3612] <... close resumed>) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 3611] <... openat resumed>) = 3 [pid 3610] <... getpid resumed>) = 1 [pid 3612] <... openat resumed>) = 3 [pid 3611] write(3, "1024", 4 [pid 3610] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 3612] write(3, "1024 1048576 500 1024", 21 [pid 3611] <... write resumed>) = 4 [pid 3612] <... write resumed>) = 21 [pid 3611] close(3 [pid 3610] <... capget resumed>{effective=1< [pid 3611] <... close resumed>) = 0 [pid 3610] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 3612] <... close resumed>) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 3612] getpid( [pid 3611] <... openat resumed>) = 3 [pid 3610] <... capset resumed>) = 0 [pid 3612] <... getpid resumed>) = 1 [pid 3611] write(3, "1024 1048576 500 1024", 21 [pid 3610] unshare(CLONE_NEWNET [pid 3612] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 3611] <... write resumed>) = 21 [pid 3612] <... capget resumed>{effective=1< [pid 3612] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 3611] <... close resumed>) = 0 [pid 3612] <... capset resumed>) = 0 [pid 3611] getpid( [pid 3612] unshare(CLONE_NEWNET [pid 3611] <... getpid resumed>) = 1 [pid 3611] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 3609] <... unshare resumed>) = 0 [pid 3609] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "0 65535", 7) = 7 [pid 3609] close(3) = 0 [pid 3609] mkdir("/dev/binderfs", 0777) = 0 [pid 3609] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0 [pid 3609] getpid() = 1 [pid 3609] mkdir("/syzcgroup/unified/syz2", 0777) = 0 [pid 3609] openat(AT_FDCWD, "/syzcgroup/unified/syz2/pids.max", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "32", 2) = 2 [pid 3609] close(3) = 0 [pid 3609] openat(AT_FDCWD, "/syzcgroup/unified/syz2/memory.low", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "312475648", 9) = 9 [pid 3609] close(3) = 0 [pid 3609] openat(AT_FDCWD, "/syzcgroup/unified/syz2/memory.high", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "313524224", 9) = 9 [pid 3609] close(3) = 0 [pid 3609] openat(AT_FDCWD, "/syzcgroup/unified/syz2/memory.max", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "314572800", 9) = 9 [pid 3609] close(3) = 0 [pid 3609] openat(AT_FDCWD, "/syzcgroup/unified/syz2/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "1", 1) = 1 [pid 3609] close(3) = 0 [pid 3609] mkdir("/syzcgroup/cpu/syz2", 0777) = 0 [pid 3609] openat(AT_FDCWD, "/syzcgroup/cpu/syz2/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "1", 1) = 1 [pid 3609] close(3) = 0 [pid 3609] mkdir("/syzcgroup/net/syz2", 0777) = 0 [pid 3609] openat(AT_FDCWD, "/syzcgroup/net/syz2/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "1", 1) = 1 [pid 3609] close(3) = 0 [pid 3609] mkdir("./0", 0777) = 0 [pid 3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555f255d0) = 2 ./strace-static-x86_64: Process 3613 attached [pid 3613] chdir("./0") = 0 [pid 3613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3613] setpgid(0, 0) = 0 [pid 3613] symlink("/syzcgroup/unified/syz2", "./cgroup") = 0 [pid 3613] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu") = 0 [pid 3613] symlink("/syzcgroup/net/syz2", "./cgroup.net") = 0 [pid 3613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3613] write(3, "1000", 4) = 4 [pid 3613] close(3) = 0 [pid 3613] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3613] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 3 [pid 3613] write(3, "29", 2) = 2 [pid 3613] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3608] <... unshare resumed>) = 0 [pid 3613] <... mount resumed>) = 0 [pid 3613] close(3) = 0 [pid 3610] <... unshare resumed>) = 0 [pid 3613] close(4 [pid 3608] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 3610] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 3607] <... unshare resumed>) = 0 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... openat resumed>) = 3 [pid 3607] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 3608] write(3, "0 65535", 7) = 7 [pid 3607] <... openat resumed>) = 3 [pid 3608] close(3 [pid 3607] write(3, "0 65535", 7 [pid 3608] <... close resumed>) = 0 [pid 3610] <... openat resumed>) = 3 [pid 3607] <... write resumed>) = 7 [pid 3608] mkdir("/dev/binderfs", 0777 [pid 3607] close(3 [pid 3610] write(3, "0 65535", 7 [pid 3608] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3607] <... close resumed>) = 0 [pid 3610] <... write resumed>) = 7 [pid 3608] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 3607] mkdir("/dev/binderfs", 0777 [pid 3611] <... unshare resumed>) = 0 [pid 3610] close(3 [pid 3613] close(5 [pid 3608] <... mount resumed>) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 3610] <... close resumed>) = 0 [pid 3608] getpid( [pid 3607] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3611] <... openat resumed>) = 3 [pid 3610] mkdir("/dev/binderfs", 0777 [pid 3608] <... getpid resumed>) = 1 [pid 3607] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 3611] write(3, "0 65535", 7 [pid 3610] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3608] mkdir("/syzcgroup/unified/syz1", 0777 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3613] close(6 [pid 3607] <... mount resumed>) = 0 [pid 3611] <... write resumed>) = 7 [pid 3610] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3613] close(7) = -1 EBADF (Bad file descriptor) [pid 3613] close(8) = -1 EBADF (Bad file descriptor) [pid 3613] close(9 [pid 3611] close(3 [pid 3610] <... mount resumed>) = 0 [pid 3607] getpid( [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... close resumed>) = 0 [pid 3610] getpid( [pid 3608] <... mkdir resumed>) = 0 [pid 3607] <... getpid resumed>) = 1 [pid 3611] mkdir("/dev/binderfs", 0777 [pid 3610] <... getpid resumed>) = 1 [pid 3608] openat(AT_FDCWD, "/syzcgroup/unified/syz1/pids.max", O_WRONLY|O_CLOEXEC [pid 3607] mkdir("/syzcgroup/unified/syz0", 0777 [pid 3611] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3610] mkdir("/syzcgroup/unified/syz4", 0777 [pid 3613] close(10) = -1 EBADF (Bad file descriptor) [pid 3613] close(11) = -1 EBADF (Bad file descriptor) [pid 3607] <... mkdir resumed>) = 0 [pid 3611] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 3613] close(12) = -1 EBADF (Bad file descriptor) [pid 3613] close(13) = -1 EBADF (Bad file descriptor) [pid 3613] close(14 [pid 3610] <... mkdir resumed>) = 0 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3613] close(15) = -1 EBADF (Bad file descriptor) [pid 3613] close(16 [pid 3611] <... mount resumed>) = 0 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] getpid( [pid 3610] openat(AT_FDCWD, "/syzcgroup/unified/syz4/pids.max", O_WRONLY|O_CLOEXEC [pid 3608] <... openat resumed>) = 3 [pid 3607] openat(AT_FDCWD, "/syzcgroup/unified/syz0/pids.max", O_WRONLY|O_CLOEXEC [pid 3611] <... getpid resumed>) = 1 [pid 3613] close(17 [pid 3611] mkdir("/syzcgroup/unified/syz3", 0777 [pid 3610] <... openat resumed>) = 3 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... openat resumed>) = 3 [pid 3613] close(18) = -1 EBADF (Bad file descriptor) [pid 3610] write(3, "32", 2 [pid 3608] write(3, "32", 2 [pid 3607] write(3, "32", 2 [pid 3613] close(19 [pid 3611] <... mkdir resumed>) = 0 [pid 3610] <... write resumed>) = 2 [pid 3608] <... write resumed>) = 2 [pid 3607] <... write resumed>) = 2 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] openat(AT_FDCWD, "/syzcgroup/unified/syz3/pids.max", O_WRONLY|O_CLOEXEC [pid 3610] close(3 [pid 3608] close(3 [pid 3613] close(20 [pid 3607] close(3 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3613] close(21 [pid 3611] <... openat resumed>) = 3 [pid 3610] <... close resumed>) = 0 [pid 3608] <... close resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] write(3, "32", 2 [pid 3610] openat(AT_FDCWD, "/syzcgroup/unified/syz4/memory.low", O_WRONLY|O_CLOEXEC [pid 3608] openat(AT_FDCWD, "/syzcgroup/unified/syz1/memory.low", O_WRONLY|O_CLOEXEC [pid 3607] openat(AT_FDCWD, "/syzcgroup/unified/syz0/memory.low", O_WRONLY|O_CLOEXEC [pid 3613] close(22 [pid 3611] <... write resumed>) = 2 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] close(3 [pid 3610] <... openat resumed>) = 3 [ 50.354628][ T3613] debugfs: out of free dentries, can not create file 'count' [pid 3608] <... openat resumed>) = 3 [pid 3607] <... openat resumed>) = 3 [pid 3613] close(23 [pid 3611] <... close resumed>) = 0 [pid 3610] write(3, "312475648", 9 [pid 3608] write(3, "312475648", 9 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] openat(AT_FDCWD, "/syzcgroup/unified/syz3/memory.low", O_WRONLY|O_CLOEXEC [pid 3610] <... write resumed>) = 9 [pid 3608] <... write resumed>) = 9 [pid 3607] write(3, "312475648", 9 [pid 3613] close(24 [pid 3611] <... openat resumed>) = 3 [pid 3610] close(3 [pid 3608] close(3 [pid 3607] <... write resumed>) = 9 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unshare resumed>) = 0 [pid 3611] write(3, "312475648", 9 [pid 3610] <... close resumed>) = 0 [pid 3613] close(25 [pid 3612] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 3611] <... write resumed>) = 9 [pid 3610] openat(AT_FDCWD, "/syzcgroup/unified/syz4/memory.high", O_WRONLY|O_CLOEXEC [pid 3608] <... close resumed>) = 0 [pid 3607] close(3 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] close(3 [pid 3613] close(26 [pid 3612] <... openat resumed>) = 3 [pid 3611] <... close resumed>) = 0 [pid 3610] <... openat resumed>) = 3 [pid 3608] openat(AT_FDCWD, "/syzcgroup/unified/syz1/memory.high", O_WRONLY|O_CLOEXEC [pid 3607] <... close resumed>) = 0 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] write(3, "0 65535", 7 [pid 3611] openat(AT_FDCWD, "/syzcgroup/unified/syz3/memory.high", O_WRONLY|O_CLOEXEC [pid 3610] write(3, "313524224", 9 [pid 3613] close(27 [pid 3608] <... openat resumed>) = 3 [pid 3607] openat(AT_FDCWD, "/syzcgroup/unified/syz0/memory.high", O_WRONLY|O_CLOEXEC [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... openat resumed>) = 3 [pid 3610] <... write resumed>) = 9 [pid 3608] write(3, "313524224", 9 [pid 3613] close(28 [pid 3611] write(3, "313524224", 9 [pid 3610] close(3 [pid 3607] <... openat resumed>) = 3 [pid 3608] <... write resumed>) = 9 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... write resumed>) = 7 [pid 3611] <... write resumed>) = 9 [pid 3610] <... close resumed>) = 0 [pid 3608] close(3 [pid 3607] write(3, "313524224", 9 [pid 3613] close(29 [pid 3612] close(3 [pid 3611] close(3 [pid 3610] openat(AT_FDCWD, "/syzcgroup/unified/syz4/memory.max", O_WRONLY|O_CLOEXEC [pid 3608] <... close resumed>) = 0 [pid 3607] <... write resumed>) = 9 [pid 3613] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... close resumed>) = 0 [pid 3613] exit_group(0 [pid 3612] <... close resumed>) = 0 [pid 3611] openat(AT_FDCWD, "/syzcgroup/unified/syz3/memory.max", O_WRONLY|O_CLOEXEC [pid 3610] <... openat resumed>) = 3 [pid 3608] openat(AT_FDCWD, "/syzcgroup/unified/syz1/memory.max", O_WRONLY|O_CLOEXEC [pid 3607] close(3 [pid 3613] <... exit_group resumed>) = ? [pid 3611] <... openat resumed>) = 3 [pid 3610] write(3, "314572800", 9 [pid 3613] +++ exited with 0 +++ [pid 3612] mkdir("/dev/binderfs", 0777 [pid 3611] write(3, "314572800", 9 [pid 3610] <... write resumed>) = 9 [pid 3608] <... openat resumed>) = 3 [pid 3607] <... close resumed>) = 0 [pid 3612] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3611] <... write resumed>) = 9 [pid 3610] close(3 [pid 3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3608] write(3, "314572800", 9 [pid 3607] openat(AT_FDCWD, "/syzcgroup/unified/syz0/memory.max", O_WRONLY|O_CLOEXEC [pid 3612] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 3611] close(3 [pid 3610] <... close resumed>) = 0 [pid 3608] <... write resumed>) = 9 [pid 3611] <... close resumed>) = 0 [pid 3610] openat(AT_FDCWD, "/syzcgroup/unified/syz4/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3607] <... openat resumed>) = 3 [pid 3608] close(3 [pid 3611] openat(AT_FDCWD, "/syzcgroup/unified/syz3/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3609] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] <... openat resumed>) = 3 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] <... close resumed>) = 0 [pid 3611] <... openat resumed>) = 3 [pid 3610] write(3, "1", 1 [pid 3609] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3607] write(3, "314572800", 9 [pid 3611] write(3, "1", 1 [pid 3609] <... openat resumed>) = 3 [pid 3608] openat(AT_FDCWD, "/syzcgroup/unified/syz1/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3610] <... write resumed>) = 1 [pid 3609] fstat(3, [pid 3607] <... write resumed>) = 9 [pid 3611] <... write resumed>) = 1 [pid 3610] close(3 [pid 3609] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3608] <... openat resumed>) = 3 [pid 3607] close(3 [pid 3611] close(3 [pid 3610] <... close resumed>) = 0 [pid 3609] getdents64(3, [pid 3608] write(3, "1", 1 [pid 3612] <... mount resumed>) = 0 [pid 3611] <... close resumed>) = 0 [pid 3610] mkdir("/syzcgroup/cpu/syz4", 0777 [pid 3609] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3607] <... close resumed>) = 0 [pid 3609] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... write resumed>) = 1 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3609] unlink("./0/binderfs" [pid 3608] close(3 [pid 3611] mkdir("/syzcgroup/cpu/syz3", 0777 [pid 3610] <... mkdir resumed>) = 0 [pid 3609] <... unlink resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/syzcgroup/unified/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3612] getpid( [pid 3609] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... close resumed>) = 0 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] lstat("./0/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3609] unlink("./0/cgroup" [pid 3611] <... mkdir resumed>) = 0 [pid 3610] openat(AT_FDCWD, "/syzcgroup/cpu/syz4/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3609] <... unlink resumed>) = 0 [pid 3612] <... getpid resumed>) = 1 [pid 3608] mkdir("/syzcgroup/cpu/syz1", 0777 [pid 3607] <... openat resumed>) = 3 [pid 3612] mkdir("/syzcgroup/unified/syz5", 0777 [pid 3611] openat(AT_FDCWD, "/syzcgroup/cpu/syz3/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3610] <... openat resumed>) = 3 [pid 3609] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] write(3, "1", 1 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3611] <... openat resumed>) = 3 [pid 3610] <... write resumed>) = 1 [pid 3609] lstat("./0/cgroup.net", [pid 3608] <... mkdir resumed>) = 0 [pid 3607] write(3, "1", 1 [pid 3611] write(3, "1", 1 [pid 3610] close(3 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] openat(AT_FDCWD, "/syzcgroup/cpu/syz1/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3610] <... close resumed>) = 0 [pid 3609] unlink("./0/cgroup.net" [pid 3610] mkdir("/syzcgroup/net/syz4", 0777 [pid 3609] <... unlink resumed>) = 0 [pid 3608] <... openat resumed>) = 3 [pid 3610] <... mkdir resumed>) = 0 [pid 3609] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3611] <... write resumed>) = 1 [pid 3610] openat(AT_FDCWD, "/syzcgroup/net/syz4/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3612] <... mkdir resumed>) = 0 [pid 3608] write(3, "1", 1 [pid 3607] <... write resumed>) = 1 [pid 3611] close(3 [pid 3610] <... openat resumed>) = 3 [pid 3609] lstat("./0/cgroup.cpu", [pid 3612] openat(AT_FDCWD, "/syzcgroup/unified/syz5/pids.max", O_WRONLY|O_CLOEXEC [pid 3611] <... close resumed>) = 0 [pid 3610] write(3, "1", 1 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] <... write resumed>) = 1 [pid 3607] close(3 [pid 3611] mkdir("/syzcgroup/net/syz3", 0777 [pid 3610] <... write resumed>) = 1 [pid 3609] unlink("./0/cgroup.cpu" [pid 3608] close(3 [pid 3610] close(3 [pid 3609] <... unlink resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 3610] <... close resumed>) = 0 [pid 3609] getdents64(3, [pid 3607] mkdir("/syzcgroup/cpu/syz0", 0777 [pid 3610] mkdir("./0", 0777 [pid 3609] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3608] <... close resumed>) = 0 [pid 3610] <... mkdir resumed>) = 0 [pid 3609] close(3 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3609] <... close resumed>) = 0 [pid 3612] <... openat resumed>) = 3 [pid 3611] <... mkdir resumed>) = 0 [pid 3608] mkdir("/syzcgroup/net/syz1", 0777 [pid 3607] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 3614 attached [pid 3612] write(3, "32", 2 [pid 3611] openat(AT_FDCWD, "/syzcgroup/net/syz3/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3609] rmdir("./0" [pid 3614] chdir("./0" [pid 3612] <... write resumed>) = 2 [pid 3611] <... openat resumed>) = 3 [pid 3610] <... clone resumed>, child_tidptr=0x555555f255d0) = 2 [pid 3609] <... rmdir resumed>) = 0 [pid 3608] <... mkdir resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3614] <... chdir resumed>) = 0 [pid 3612] close(3 [pid 3611] write(3, "1", 1 [pid 3609] mkdir("./1", 0777 [pid 3608] openat(AT_FDCWD, "/syzcgroup/net/syz1/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3614] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3612] <... close resumed>) = 0 [pid 3611] <... write resumed>) = 1 [pid 3609] <... mkdir resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3614] <... prctl resumed>) = 0 [pid 3612] openat(AT_FDCWD, "/syzcgroup/unified/syz5/memory.low", O_WRONLY|O_CLOEXEC [pid 3611] close(3 [pid 3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3608] <... openat resumed>) = 3 [pid 3607] write(3, "1", 1 [pid 3614] setpgid(0, 0 [pid 3612] <... openat resumed>) = 3 [pid 3611] <... close resumed>) = 0 [pid 3608] write(3, "1", 1 [pid 3607] <... write resumed>) = 1 [pid 3612] write(3, "312475648", 9 [pid 3611] mkdir("./0", 0777 [pid 3608] <... write resumed>) = 1 [pid 3607] close(3./strace-static-x86_64: Process 3615 attached [pid 3614] <... setpgid resumed>) = 0 [pid 3612] <... write resumed>) = 9 [pid 3615] chdir("./1" [pid 3614] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 3612] close(3 [pid 3611] <... mkdir resumed>) = 0 [pid 3609] <... clone resumed>, child_tidptr=0x555555f255d0) = 3 [pid 3608] close(3 [pid 3607] <... close resumed>) = 0 [pid 3615] <... chdir resumed>) = 0 [pid 3614] <... symlink resumed>) = 0 [pid 3612] <... close resumed>) = 0 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3614] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 3612] openat(AT_FDCWD, "/syzcgroup/unified/syz5/memory.high", O_WRONLY|O_CLOEXEC [pid 3608] <... close resumed>) = 0 [pid 3607] mkdir("/syzcgroup/net/syz0", 0777 [pid 3614] <... symlink resumed>) = 0 [pid 3608] mkdir("./0", 0777 [pid 3615] <... prctl resumed>) = 0 [pid 3614] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [pid 3614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] setpgid(0, 0 [pid 3614] <... openat resumed>) = 3 [pid 3607] <... mkdir resumed>) = 0 [pid 3615] <... setpgid resumed>) = 0 [pid 3614] write(3, "1000", 4 [pid 3608] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 3616 attached [pid 3614] <... write resumed>) = 4 [pid 3616] chdir("./0" [pid 3615] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 3614] close(3 [pid 3612] <... openat resumed>) = 3 [pid 3611] <... clone resumed>, child_tidptr=0x555555f255d0) = 2 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] openat(AT_FDCWD, "/syzcgroup/net/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3616] <... chdir resumed>) = 0 [pid 3615] <... symlink resumed>) = 0 [pid 3614] <... close resumed>) = 0 [pid 3616] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3614] symlink("/dev/binderfs", "./binderfs" [pid 3616] <... prctl resumed>) = 0 [pid 3614] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 3617 attached [pid 3616] setpgid(0, 0 [pid 3615] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 3614] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3612] write(3, "313524224", 9 [pid 3607] <... openat resumed>) = 3 [pid 3617] chdir("./0" [pid 3616] <... setpgid resumed>) = 0 [pid 3615] <... symlink resumed>) = 0 [pid 3614] <... openat resumed>) = 3 [pid 3612] <... write resumed>) = 9 [pid 3608] <... clone resumed>, child_tidptr=0x555555f255d0) = 2 [pid 3607] write(3, "1", 1 [pid 3617] <... chdir resumed>) = 0 [pid 3616] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 3615] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 3614] write(3, "29", 2 [pid 3612] close(3 [pid 3617] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] <... symlink resumed>) = 0 [pid 3614] <... write resumed>) = 2 [pid 3607] <... write resumed>) = 1 [pid 3615] <... symlink resumed>) = 0 [pid 3617] <... prctl resumed>) = 0 [pid 3616] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 3614] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3612] <... close resumed>) = 0 [pid 3607] close(3 [pid 3617] setpgid(0, 0 [pid 3616] <... symlink resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3612] openat(AT_FDCWD, "/syzcgroup/unified/syz5/memory.max", O_WRONLY|O_CLOEXEC [pid 3607] <... close resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3612] <... openat resumed>) = 3 [pid 3607] mkdir("./0", 0777 [pid 3615] write(3, "1000", 4 [pid 3612] write(3, "314572800", 9 [pid 3607] <... mkdir resumed>) = 0 [pid 3615] <... write resumed>) = 4 [pid 3612] <... write resumed>) = 9 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3618 attached [pid 3617] <... setpgid resumed>) = 0 [pid 3616] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 3615] close(3 [pid 3612] close(3 [pid 3618] chdir("./0" [pid 3617] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 3616] <... symlink resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3614] <... mount resumed>) = 0 [pid 3612] <... close resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555555f255d0) = 2 [pid 3618] <... chdir resumed>) = 0 [pid 3617] <... symlink resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] symlink("/dev/binderfs", "./binderfs" [pid 3612] openat(AT_FDCWD, "/syzcgroup/unified/syz5/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3618] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 3616] <... openat resumed>) = 3 [pid 3615] <... symlink resumed>) = 0 [pid 3614] close(3 [pid 3612] <... openat resumed>) = 3 [pid 3618] <... prctl resumed>) = 0 [pid 3617] <... symlink resumed>) = 0 [pid 3616] write(3, "1000", 4 [pid 3615] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3614] <... close resumed>) = 0 [pid 3612] write(3, "1", 1 [pid 3618] setpgid(0, 0 [pid 3617] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 3616] <... write resumed>) = 4 [pid 3615] <... openat resumed>) = 3 [pid 3614] close(4 [pid 3612] <... write resumed>) = 1 [pid 3618] <... setpgid resumed>) = 0 [pid 3617] <... symlink resumed>) = 0 [pid 3616] close(3 [pid 3615] write(3, "29", 2 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] close(3 [pid 3618] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 3617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] <... close resumed>) = 0 [pid 3615] <... write resumed>) = 2 [pid 3614] close(5 [pid 3612] <... close resumed>) = 0 [pid 3618] <... symlink resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3616] symlink("/dev/binderfs", "./binderfs" [pid 3615] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] mkdir("/syzcgroup/cpu/syz5", 0777 [pid 3618] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 3617] write(3, "1000", 4 [pid 3616] <... symlink resumed>) = 0 [pid 3615] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3614] close(6 [pid 3612] <... mkdir resumed>) = 0 [pid 3618] <... symlink resumed>) = 0 [pid 3617] <... write resumed>) = 4 [pid 3616] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3615] close(3 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] openat(AT_FDCWD, "/syzcgroup/cpu/syz5/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3618] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 3617] close(3 [pid 3616] <... openat resumed>) = 3 [pid 3615] <... close resumed>) = 0 [pid 3614] close(7 [pid 3612] <... openat resumed>) = 3 [pid 3618] <... symlink resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] write(3, "29", 2 [pid 3615] close(4 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] write(3, "1", 1 [pid 3618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] symlink("/dev/binderfs", "./binderfs" [pid 3616] <... write resumed>) = 2 [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] close(8 [pid 3612] <... write resumed>) = 1 [pid 3618] <... openat resumed>) = 3 [pid 3617] <... symlink resumed>) = 0 [pid 3616] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3615] close(5 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] close(3 [pid 3618] write(3, "1000", 4 [pid 3617] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... close resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3615] close(6 [pid 3612] mkdir("/syzcgroup/net/syz5", 0777 [pid 3617] write(3, "29", 2 [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... mkdir resumed>) = 0 [pid 3617] <... write resumed>) = 2 [pid 3615] close(7 [pid 3612] openat(AT_FDCWD, "/syzcgroup/net/syz5/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 3617] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... openat resumed>) = 3 [pid 3615] close(8 [pid 3612] write(3, "1", 1 [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... write resumed>) = 1 [pid 3615] close(9 [pid 3612] close(3 [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... close resumed>) = 0 [pid 3615] close(10 [pid 3612] mkdir("./0", 0777 [pid 3618] <... write resumed>) = 4 [pid 3617] <... mount resumed>) = 0 [pid 3616] <... mount resumed>) = 0 [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] close(9 [pid 3612] <... mkdir resumed>) = 0 [pid 3618] close(3 [pid 3617] close(3 [pid 3615] close(11 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3619 attached [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] close(3 [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] close(10 [pid 3619] chdir("./0" [pid 3618] symlink("/dev/binderfs", "./binderfs" [pid 3617] close(4 [pid 3615] close(12 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... clone resumed>, child_tidptr=0x555555f255d0) = 2 [pid 3616] <... close resumed>) = 0 [pid 3619] <... chdir resumed>) = 0 [pid 3618] <... symlink resumed>) = 0 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] close(11 [pid 3619] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3617] close(5 [pid 3615] close(13 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] <... prctl resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] close(12 [pid 3619] setpgid(0, 0 [pid 3618] write(3, "29", 2 [pid 3617] close(6 [pid 3615] close(14 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] <... setpgid resumed>) = 0 [ 50.484237][ T3614] debugfs: out of free dentries, can not create file 'count' [ 50.518457][ T3616] debugfs: out of free dentries, can not create file 'scan' [pid 3618] <... write resumed>) = 2 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] close(13 [pid 3619] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 3618] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3617] close(7 [pid 3616] close(4 [pid 3615] close(15 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] <... symlink resumed>) = 0 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(8 [pid 3615] close(16 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(9 [pid 3615] close(17 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(10 [pid 3615] close(18 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(11 [pid 3615] close(19 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(12 [pid 3615] close(20 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(13 [pid 3615] close(21 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(14 [pid 3615] close(22 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(15 [pid 3615] close(23 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(16 [pid 3615] close(24 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(17 [pid 3615] close(25 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(18 [pid 3615] close(26 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] close(14 [pid 3619] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(19 [pid 3615] close(27 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] <... symlink resumed>) = 0 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] close(5 [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] close(15 [pid 3619] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 3617] close(20 [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] close(28 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] <... symlink resumed>) = 0 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] close(6 [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] close(16 [pid 3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] close(21 [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] close(29 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] <... openat resumed>) = 3 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] close(17 [pid 3616] close(7 [pid 3619] write(3, "1000", 4 [pid 3617] close(22 [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] exit_group(0 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] <... write resumed>) = 4 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] close(8 [pid 3615] <... exit_group resumed>) = ? [pid 3614] close(18 [pid 3619] close(3 [pid 3618] <... mount resumed>) = 0 [pid 3617] close(23 [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3615] +++ exited with 0 +++ [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] <... close resumed>) = 0 [pid 3618] close(3 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] close(9 [pid 3614] close(19 [pid 3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] symlink("/dev/binderfs", "./binderfs" [pid 3618] <... close resumed>) = 0 [pid 3617] close(24 [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] <... symlink resumed>) = 0 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] close(10 [pid 3614] close(20 [pid 3619] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3617] close(25 [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] close(4 [pid 3619] <... openat resumed>) = 3 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] close(21 [pid 3616] close(11 [pid 3619] write(3, "29", 2 [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(26 [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3619] <... write resumed>) = 2 [pid 3618] close(5 [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] close(12 [pid 3614] close(22 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3619] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(27 [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3617] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3617] close(28) = -1 EBADF (Bad file descriptor) [pid 3617] close(29) = -1 EBADF (Bad file descriptor) [pid 3617] exit_group(0) = ? [pid 3617] +++ exited with 0 +++ [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3608] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3608] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3608] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3608] getdents64(3, 0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3608] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3608] lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3608] unlink("./0/binderfs") = 0 [pid 3608] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3608] lstat("./0/cgroup", [pid 3619] <... mount resumed>) = 0 [pid 3616] close(13 [pid 3614] close(23 [pid 3609] <... openat resumed>) = 3 [pid 3618] close(6 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] fstat(3, [pid 3608] unlink("./0/cgroup" [pid 3618] close(7 [pid 3616] close(14 [pid 3614] close(24 [pid 3609] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3608] <... unlink resumed>) = 0 [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] getdents64(3, [pid 3608] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3618] close(8 [pid 3616] close(15 [pid 3614] close(25 [pid 3609] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] lstat("./0/cgroup.net", [pid 3619] close(3 [pid 3618] close(9 [pid 3616] close(16 [pid 3614] close(26 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] lstat("./1/binderfs", [pid 3608] unlink("./0/cgroup.net" [pid 3619] <... close resumed>) = 0 [pid 3618] close(10 [pid 3616] close(17 [pid 3614] close(27 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3608] <... unlink resumed>) = 0 [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] unlink("./1/binderfs" [pid 3608] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3619] close(4 [pid 3618] close(11 [pid 3616] close(18 [pid 3614] close(28 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] <... unlink resumed>) = 0 [pid 3608] lstat("./0/cgroup.cpu", [pid 3619] close(5 [pid 3618] close(12 [pid 3616] close(19 [pid 3614] close(29 [pid 3609] umount2("./1/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] unlink("./0/cgroup.cpu" [pid 3619] close(6 [pid 3618] close(13 [pid 3616] close(20 [pid 3614] exit_group(0 [pid 3609] lstat("./1/cgroup", [pid 3608] <... unlink resumed>) = 0 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] <... exit_group resumed>) = ? [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3608] getdents64(3, [pid 3619] close(7 [pid 3618] close(14 [pid 3616] close(21 [pid 3608] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3608] close(3) = 0 [pid 3608] rmdir("./0" [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3614] +++ exited with 0 +++ [pid 3609] unlink("./1/cgroup" [pid 3608] <... rmdir resumed>) = 0 [pid 3619] close(8 [pid 3618] close(15 [pid 3616] close(22 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3609] <... unlink resumed>) = 0 [pid 3608] mkdir("./1", 0777 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] umount2("./1/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... mkdir resumed>) = 0 [pid 3619] close(9 [pid 3618] close(16 [pid 3616] close(23 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3620 attached [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3620] chdir("./1" [pid 3619] close(10 [pid 3618] close(17 [pid 3608] <... clone resumed>, child_tidptr=0x555555f255d0) = 3 [pid 3616] close(24 [pid 3609] lstat("./1/cgroup.net", [pid 3620] <... chdir resumed>) = 0 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3620] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] close(11 [pid 3618] close(18 [pid 3616] close(25 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] unlink("./1/cgroup.net" [pid 3620] <... prctl resumed>) = 0 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3620] setpgid(0, 0 [pid 3619] close(12 [pid 3618] close(19 [pid 3616] close(26 [pid 3609] <... unlink resumed>) = 0 [pid 3620] <... setpgid resumed>) = 0 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... openat resumed>) = 3 [pid 3609] umount2("./1/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3620] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 3619] close(13 [pid 3618] close(20 [pid 3616] close(27 [pid 3610] fstat(3, [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3620] <... symlink resumed>) = 0 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3609] lstat("./1/cgroup.cpu", [pid 3620] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 3619] close(14 [pid 3618] close(21 [pid 3616] close(28 [pid 3610] getdents64(3, [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3620] <... symlink resumed>) = 0 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] unlink("./1/cgroup.cpu" [pid 3620] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 3619] close(15 [pid 3618] close(22 [pid 3616] close(29 [pid 3610] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3620] <... symlink resumed>) = 0 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] <... unlink resumed>) = 0 [pid 3610] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] close(16 [pid 3618] close(23 [pid 3616] exit_group(0 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] getdents64(3, [pid 3620] <... openat resumed>) = 3 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3616] <... exit_group resumed>) = ? [pid 3610] lstat("./0/binderfs", [pid 3620] write(3, "1000", 4 [pid 3619] close(17 [pid 3618] close(24 [pid 3609] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3616] +++ exited with 0 +++ [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] close(3 [pid 3620] <... write resumed>) = 4 [pid 3619] close(18 [pid 3620] close(3 [pid 3618] close(25 [pid 3611] restart_syscall(<... resuming interrupted clone ...> [pid 3610] unlink("./0/binderfs" [pid 3609] <... close resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... restart_syscall resumed>) = 0 [pid 3620] symlink("/dev/binderfs", "./binderfs" [pid 3619] close(19 [pid 3618] close(26 [pid 3610] <... unlink resumed>) = 0 [pid 3609] rmdir("./1" [pid 3620] <... symlink resumed>) = 0 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3611] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3619] close(20 [pid 3618] close(27 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] <... rmdir resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3610] lstat("./0/cgroup", [ 50.541179][ T3618] debugfs: out of free dentries, can not create file 'scan' [ 50.568471][ T3619] debugfs: out of free dentries, can not create file 'count' [pid 3609] mkdir("./2", 0777 [pid 3620] <... openat resumed>) = 3 [pid 3619] close(21 [pid 3618] close(28 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3611] <... openat resumed>) = 3 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] <... mkdir resumed>) = 0 [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] write(3, "29", 2 [pid 3619] close(22 [pid 3618] close(29 [pid 3611] fstat(3, [pid 3610] unlink("./0/cgroup" [pid 3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... write resumed>) = 2 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3610] <... unlink resumed>) = 0 [pid 3619] close(23 [pid 3618] exit_group(0 [pid 3620] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3611] getdents64(3, [pid 3610] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3618] <... exit_group resumed>) = ? [pid 3611] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 3621 attached [pid 3620] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3619] close(24 [pid 3618] +++ exited with 0 +++ [pid 3611] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] lstat("./0/cgroup.net", [pid 3620] close(3 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3609] <... clone resumed>, child_tidptr=0x555555f255d0) = 4 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3621] chdir("./2" [pid 3620] <... close resumed>) = 0 [pid 3619] close(25 [pid 3611] lstat("./0/binderfs", [pid 3610] unlink("./0/cgroup.net" [pid 3620] close(4 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3621] <... chdir resumed>) = 0 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] close(26 [pid 3611] unlink("./0/binderfs" [pid 3610] <... unlink resumed>) = 0 [pid 3621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] close(5 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3610] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3621] <... prctl resumed>) = 0 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] close(27 [pid 3611] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3621] setpgid(0, 0 [pid 3620] close(6 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] lstat("./0/cgroup.cpu", [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3621] <... setpgid resumed>) = 0 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] close(28 [pid 3611] lstat("./0/cgroup", [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3607] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3621] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 3620] close(7 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3610] unlink("./0/cgroup.cpu" [pid 3621] <... symlink resumed>) = 0 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] close(29 [pid 3611] unlink("./0/cgroup" [pid 3607] <... openat resumed>) = 3 [pid 3621] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 3620] close(8 [pid 3619] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3610] <... unlink resumed>) = 0 [pid 3607] fstat(3, [pid 3619] exit_group(0 [pid 3611] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] getdents64(3, [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3619] <... exit_group resumed>) = ? [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3607] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3621] <... symlink resumed>) = 0 [pid 3621] symlink("/syzcgroup/net/syz2", "./cgroup.net") = 0 [pid 3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] +++ exited with 0 +++ [pid 3610] close(3 [pid 3611] lstat("./0/cgroup.net", [pid 3621] <... openat resumed>) = 3 [pid 3620] close(9 [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3610] <... close resumed>) = 0 [pid 3607] getdents64(3, [pid 3621] write(3, "1000", 4 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3610] rmdir("./0" [pid 3621] <... write resumed>) = 4 [pid 3607] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3621] close(3) = 0 [pid 3621] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3612] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3611] unlink("./0/cgroup.net" [pid 3610] <... rmdir resumed>) = 0 [pid 3621] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3620] close(10 [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3611] <... unlink resumed>) = 0 [pid 3610] mkdir("./1", 0777 [pid 3607] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3621] <... openat resumed>) = 3 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3611] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3621] write(3, "29", 2 [pid 3620] close(11 [pid 3612] <... openat resumed>) = 3 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... mkdir resumed>) = 0 [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3621] <... write resumed>) = 2 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] fstat(3, [pid 3611] lstat("./0/cgroup.cpu", [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] lstat("./0/binderfs", [pid 3621] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3620] close(12 [pid 3612] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 ./strace-static-x86_64: Process 3622 attached [pid 3621] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] getdents64(3, [pid 3611] unlink("./0/cgroup.cpu" [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3622] chdir("./1" [pid 3621] close(3 [pid 3620] close(13 [pid 3612] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3611] <... unlink resumed>) = 0 [pid 3607] unlink("./0/binderfs" [pid 3610] <... clone resumed>, child_tidptr=0x555555f255d0) = 3 [pid 3622] <... chdir resumed>) = 0 [pid 3621] <... close resumed>) = 0 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3611] getdents64(3, [pid 3622] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3621] close(4 [pid 3620] close(14 [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3611] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3607] <... unlink resumed>) = 0 [pid 3622] <... prctl resumed>) = 0 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] lstat("./0/binderfs", [pid 3611] close(3 [pid 3607] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3622] setpgid(0, 0 [pid 3621] close(5 [pid 3620] close(15 [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3611] <... close resumed>) = 0 [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3622] <... setpgid resumed>) = 0 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] unlink("./0/binderfs" [pid 3611] rmdir("./0" [pid 3607] lstat("./0/cgroup", [pid 3622] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 3621] close(6 [pid 3620] close(16 [pid 3612] <... unlink resumed>) = 0 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3611] <... rmdir resumed>) = 0 [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3622] <... symlink resumed>) = 0 [pid 3621] close(7 [pid 3620] close(17 [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3611] mkdir("./1", 0777 [pid 3607] unlink("./0/cgroup" [pid 3622] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] lstat("./0/cgroup", [pid 3621] close(8 [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3611] <... mkdir resumed>) = 0 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] close(18 [pid 3612] unlink("./0/cgroup" [pid 3607] <... unlink resumed>) = 0 [pid 3622] <... symlink resumed>) = 0 [pid 3621] close(9 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3622] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] close(19 [pid 3612] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3621] close(10 [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] lstat("./0/cgroup.net", [pid 3621] close(11 [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] unlink("./0/cgroup.net"./strace-static-x86_64: Process 3623 attached [pid 3622] <... symlink resumed>) = 0 [pid 3621] close(12 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3623] chdir("./1" [pid 3622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] close(20 [pid 3612] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3611] <... clone resumed>, child_tidptr=0x555555f255d0) = 3 [pid 3607] lstat("./0/cgroup.net", [pid 3623] <... chdir resumed>) = 0 [pid 3622] <... openat resumed>) = 3 [pid 3621] close(13 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3623] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3622] write(3, "1000", 4 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] close(21 [pid 3612] lstat("./0/cgroup.cpu", [pid 3607] unlink("./0/cgroup.net" [pid 3623] <... prctl resumed>) = 0 [pid 3622] <... write resumed>) = 4 [pid 3621] close(14 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3623] setpgid(0, 0 [pid 3622] close(3 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] close(22 [pid 3612] unlink("./0/cgroup.cpu" [pid 3607] <... unlink resumed>) = 0 [pid 3623] <... setpgid resumed>) = 0 [pid 3622] <... close resumed>) = 0 [pid 3621] close(15 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3607] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3623] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 3622] symlink("/dev/binderfs", "./binderfs" [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] close(23 [pid 3612] getdents64(3, [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3623] <... symlink resumed>) = 0 [pid 3622] <... symlink resumed>) = 0 [pid 3621] close(16 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3607] lstat("./0/cgroup.cpu", [pid 3623] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 3622] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] close(24 [pid 3612] close(3 [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3623] <... symlink resumed>) = 0 [pid 3622] <... openat resumed>) = 3 [pid 3621] close(17 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... close resumed>) = 0 [pid 3607] unlink("./0/cgroup.cpu" [pid 3623] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 3622] write(3, "29", 2 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] close(25 [pid 3612] rmdir("./0" [pid 3623] <... symlink resumed>) = 0 [pid 3622] <... write resumed>) = 2 [pid 3621] close(18 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... unlink resumed>) = 0 [pid 3623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3622] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] close(26 [pid 3612] <... rmdir resumed>) = 0 [pid 3607] getdents64(3, [pid 3623] <... openat resumed>) = 3 [pid 3623] write(3, "1000", 4 [pid 3622] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3621] close(19 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] mkdir("./1", 0777 [pid 3607] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3623] <... write resumed>) = 4 [pid 3622] close(3 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] close(27 [pid 3612] <... mkdir resumed>) = 0 [pid 3623] close(3 [pid 3622] <... close resumed>) = 0 [pid 3621] close(20 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] close(3 [pid 3623] <... close resumed>) = 0 [pid 3622] close(4 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] close(28 [pid 3623] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 3624 attached [pid 3623] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3621] close(21 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... close resumed>) = 0 [pid 3624] chdir("./1" [pid 3623] <... openat resumed>) = 3 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] close(29 [pid 3612] <... clone resumed>, child_tidptr=0x555555f255d0) = 3 [pid 3607] rmdir("./0" [pid 3624] <... chdir resumed>) = 0 [pid 3623] write(3, "29", 2 [pid 3622] close(5 [pid 3621] close(22 [pid 3620] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3623] <... write resumed>) = 2 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3620] exit_group(0 [pid 3607] <... rmdir resumed>) = 0 [pid 3624] <... prctl resumed>) = 0 [pid 3623] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3622] close(6 [pid 3621] close(23 [pid 3620] <... exit_group resumed>) = ? [pid 3607] mkdir("./1", 0777 [pid 3624] setpgid(0, 0 [pid 3623] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] <... setpgid resumed>) = 0 [pid 3623] close(3 [pid 3624] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 3623] <... close resumed>) = 0 [pid 3620] +++ exited with 0 +++ [pid 3624] <... symlink resumed>) = 0 [pid 3623] close(4 [pid 3621] close(24 [pid 3607] <... mkdir resumed>) = 0 [pid 3624] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(7 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3624] <... symlink resumed>) = 0 [pid 3623] close(5 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3621] close(25 [pid 3608] restart_syscall(<... resuming interrupted clone ...> [pid 3624] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] <... symlink resumed>) = 0 [pid 3623] close(6./strace-static-x86_64: Process 3625 attached [pid 3624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(8 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... restart_syscall resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555555f255d0) = 3 [pid 3624] <... openat resumed>) = 3 [pid 3623] close(7 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3621] close(26 [pid 3625] chdir("./1" [pid 3624] write(3, "1000", 4 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(9 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3625] <... chdir resumed>) = 0 [pid 3624] <... write resumed>) = 4 [pid 3623] close(8 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3621] close(27 [pid 3625] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3624] close(3 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(10 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3625] <... prctl resumed>) = 0 [pid 3624] <... close resumed>) = 0 [pid 3623] close(9 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3621] close(28 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3625] setpgid(0, 0 [pid 3624] symlink("/dev/binderfs", "./binderfs" [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(11 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3625] <... setpgid resumed>) = 0 [pid 3624] <... symlink resumed>) = 0 [pid 3623] close(10 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3621] close(29 [pid 3608] <... openat resumed>) = 3 [pid 3625] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 3624] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(12 [pid 3621] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] fstat(3, [pid 3625] <... symlink resumed>) = 0 [pid 3624] <... openat resumed>) = 3 [pid 3623] close(11 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3621] exit_group(0 [pid 3625] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 3624] write(3, "29", 2 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(13 [pid 3621] <... exit_group resumed>) = ? [pid 3608] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3625] <... symlink resumed>) = 0 [pid 3624] <... write resumed>) = 2 [pid 3623] close(12 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3625] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 3624] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3623] close(13 [pid 3622] close(14 [pid 3621] +++ exited with 0 +++ [pid 3608] getdents64(3, [pid 3625] <... symlink resumed>) = 0 [pid 3624] close(3 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3624] <... close resumed>) = 0 [pid 3623] close(14 [pid 3622] close(15 [pid 3608] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3625] <... openat resumed>) = 3 [pid 3624] close(4 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3625] write(3, "1000", 4 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(15 [pid 3622] close(16 [pid 3609] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3625] <... write resumed>) = 4 [pid 3624] close(5 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] lstat("./1/binderfs", [pid 3625] close(3 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(16 [pid 3622] close(17 [pid 3609] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3625] <... close resumed>) = 0 [pid 3624] close(6 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] <... openat resumed>) = 3 [pid 3608] unlink("./1/binderfs" [pid 3625] symlink("/dev/binderfs", "./binderfs" [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(17 [pid 3622] close(18 [pid 3609] fstat(3, [pid 3608] <... unlink resumed>) = 0 [pid 3625] <... symlink resumed>) = 0 [pid 3624] close(7 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3608] umount2("./1/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3625] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(18 [pid 3622] close(19 [pid 3609] getdents64(3, [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3625] <... openat resumed>) = 3 [pid 3624] close(8 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3608] lstat("./1/cgroup", [pid 3625] write(3, "29", 2 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(19 [pid 3622] close(20 [pid 3609] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3625] <... write resumed>) = 2 [pid 3624] close(9 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] unlink("./1/cgroup" [pid 3625] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(20 [pid 3622] close(21 [pid 3609] lstat("./2/binderfs", [pid 3624] close(10 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3608] <... unlink resumed>) = 0 [pid 3625] <... mount resumed>) = 0 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(21 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] unlink("./2/binderfs" [pid 3625] close(3 [pid 3624] close(11 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(22 [pid 3609] <... unlink resumed>) = 0 [pid 3608] umount2("./1/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3625] <... close resumed>) = 0 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(22 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] umount2("./2/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3625] close(4 [pid 3624] close(12 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(23 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] lstat("./1/cgroup.net", [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(23 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] lstat("./2/cgroup", [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3625] close(5 [pid 3624] close(13 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(24 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3608] unlink("./1/cgroup.net" [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(24 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] unlink("./2/cgroup" [pid 3625] close(6 [pid 3624] close(14 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(25 [pid 3609] <... unlink resumed>) = 0 [pid 3608] <... unlink resumed>) = 0 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(25 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] umount2("./2/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] umount2("./1/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3625] close(7 [pid 3624] close(15 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(26 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(26 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] lstat("./2/cgroup.net", [pid 3608] lstat("./1/cgroup.cpu", [pid 3625] close(8 [pid 3624] close(16 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(27 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(27 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] unlink("./2/cgroup.net" [pid 3608] unlink("./1/cgroup.cpu" [pid 3625] close(9 [pid 3624] close(17 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(28 [pid 3609] <... unlink resumed>) = 0 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(28 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] umount2("./2/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... unlink resumed>) = 0 [pid 3625] close(10 [pid 3624] close(18 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] close(29 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] getdents64(3, [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] close(29 [pid 3622] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] lstat("./2/cgroup.cpu", [pid 3608] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3625] close(11 [pid 3624] close(19 [pid 3623] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3622] exit_group(0 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] close(3 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] exit_group(0 [pid 3622] <... exit_group resumed>) = ? [pid 3609] unlink("./2/cgroup.cpu" [pid 3608] <... close resumed>) = 0 [pid 3625] close(12 [pid 3624] close(20 [pid 3623] <... exit_group resumed>) = ? [pid 3609] <... unlink resumed>) = 0 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3623] +++ exited with 0 +++ [pid 3622] +++ exited with 0 +++ [pid 3609] getdents64(3, [pid 3608] rmdir("./1" [pid 3625] close(13 [pid 3624] close(21 [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3609] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] close(3 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] close(22 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3609] <... close resumed>) = 0 [pid 3608] <... rmdir resumed>) = 0 [pid 3625] close(14 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] rmdir("./2" [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] close(23 [pid 3610] restart_syscall(<... resuming interrupted clone ...> [pid 3609] <... rmdir resumed>) = 0 [pid 3608] mkdir("./2", 0777 [pid 3625] close(15 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] <... restart_syscall resumed>) = 0 [pid 3609] mkdir("./3", 0777 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] close(24 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] <... mkdir resumed>) = 0 [pid 3608] <... mkdir resumed>) = 0 [pid 3625] close(16 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3626 attached [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] close(25 [pid 3611] <... openat resumed>) = 3 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3625] close(17 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] fstat(3, [pid 3610] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] <... clone resumed>, child_tidptr=0x555555f255d0) = 5 [pid 3626] chdir("./3" [pid 3624] close(26) = -1 EBADF (Bad file descriptor) [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] close(27 [pid 3611] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3626] <... chdir resumed>) = 0 [pid 3625] close(18 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 3627 attached [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] close(28 [pid 3610] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3611] getdents64(3, [pid 3626] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3627] chdir("./2" [pid 3625] close(19 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... openat resumed>) = 3 [pid 3627] <... chdir resumed>) = 0 [pid 3626] <... prctl resumed>) = 0 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] close(29 [pid 3611] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3610] fstat(3, [pid 3608] <... clone resumed>, child_tidptr=0x555555f255d0) = 4 [pid 3627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3626] setpgid(0, 0 [pid 3625] close(20 [pid 3624] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3627] <... prctl resumed>) = 0 [pid 3626] <... setpgid resumed>) = 0 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3624] exit_group(0 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] getdents64(3, [pid 3627] setpgid(0, 0 [pid 3624] <... exit_group resumed>) = ? [pid 3626] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 3627] <... setpgid resumed>) = 0 [pid 3625] close(21 [pid 3624] +++ exited with 0 +++ [pid 3611] lstat("./1/binderfs", [pid 3610] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3627] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3627] <... symlink resumed>) = 0 [pid 3626] <... symlink resumed>) = 0 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3610] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3627] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 3626] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 3625] close(22 [pid 3611] unlink("./1/binderfs" [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3627] <... symlink resumed>) = 0 [pid 3626] <... symlink resumed>) = 0 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3610] lstat("./1/binderfs", [pid 3627] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 3626] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 3625] close(23 [pid 3611] umount2("./1/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3627] <... symlink resumed>) = 0 [pid 3626] <... symlink resumed>) = 0 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3625] close(24 [pid 3612] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3611] lstat("./1/cgroup", [pid 3610] unlink("./1/binderfs" [pid 3627] <... openat resumed>) = 3 [pid 3626] <... openat resumed>) = 3 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3610] <... unlink resumed>) = 0 [pid 3627] write(3, "1000", 4 [pid 3626] write(3, "1000", 4 [pid 3625] close(25 [pid 3612] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3611] unlink("./1/cgroup" [pid 3610] umount2("./1/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3627] <... write resumed>) = 4 [pid 3626] <... write resumed>) = 4 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... openat resumed>) = 3 [pid 3611] <... unlink resumed>) = 0 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3627] close(3 [pid 3626] close(3 [pid 3625] close(26 [pid 3612] fstat(3, [pid 3611] umount2("./1/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] lstat("./1/cgroup", [pid 3627] <... close resumed>) = 0 [pid 3626] <... close resumed>) = 0 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3627] symlink("/dev/binderfs", "./binderfs" [pid 3626] symlink("/dev/binderfs", "./binderfs" [pid 3625] close(27 [pid 3612] getdents64(3, [pid 3611] lstat("./1/cgroup.net", [pid 3610] unlink("./1/cgroup" [pid 3627] <... symlink resumed>) = 0 [pid 3626] <... symlink resumed>) = 0 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3610] <... unlink resumed>) = 0 [pid 3627] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3626] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3625] close(28 [pid 3612] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3611] unlink("./1/cgroup.net" [pid 3610] umount2("./1/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3627] <... openat resumed>) = 3 [pid 3626] <... openat resumed>) = 3 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3611] <... unlink resumed>) = 0 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3627] write(3, "29", 2 [pid 3626] write(3, "29", 2 [pid 3625] close(29 [pid 3612] lstat("./1/binderfs", [pid 3611] umount2("./1/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] lstat("./1/cgroup.net", [pid 3627] <... write resumed>) = 2 [pid 3626] <... write resumed>) = 2 [pid 3625] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3627] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3626] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3625] exit_group(0 [pid 3612] unlink("./1/binderfs" [pid 3611] lstat("./1/cgroup.cpu", [pid 3610] unlink("./1/cgroup.net" [pid 3627] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3626] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3625] <... exit_group resumed>) = ? [pid 3612] <... unlink resumed>) = 0 [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3610] <... unlink resumed>) = 0 [pid 3627] close(3 [pid 3626] close(3 [pid 3625] +++ exited with 0 +++ [pid 3612] umount2("./1/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3611] unlink("./1/cgroup.cpu" [pid 3610] umount2("./1/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3627] <... close resumed>) = 0 [pid 3626] <... close resumed>) = 0 [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3611] <... unlink resumed>) = 0 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3627] close(4 [pid 3626] close(4 [pid 3612] lstat("./1/cgroup", [pid 3611] getdents64(3, [pid 3610] lstat("./1/cgroup.cpu", [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3611] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3627] close(5 [pid 3626] close(5 [pid 3612] unlink("./1/cgroup" [pid 3611] close(3 [pid 3610] unlink("./1/cgroup.cpu" [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3611] <... close resumed>) = 0 [pid 3610] <... unlink resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3627] close(6 [pid 3626] close(6 [pid 3612] umount2("./1/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3611] rmdir("./1" [pid 3610] getdents64(3, [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3611] <... rmdir resumed>) = 0 [pid 3627] close(7 [pid 3626] close(7 [pid 3612] lstat("./1/cgroup.net", [pid 3611] mkdir("./2", 0777 [pid 3610] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3607] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3627] close(8 [pid 3626] close(8 [pid 3612] unlink("./1/cgroup.net" [pid 3611] <... mkdir resumed>) = 0 [pid 3610] close(3 [pid 3607] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3610] <... close resumed>) = 0 ./strace-static-x86_64: Process 3628 attached [pid 3627] close(9 [pid 3626] close(9 [pid 3612] umount2("./1/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] rmdir("./1" [pid 3607] <... openat resumed>) = 3 [pid 3628] chdir("./2" [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3611] <... clone resumed>, child_tidptr=0x555555f255d0) = 4 [pid 3610] <... rmdir resumed>) = 0 [pid 3607] fstat(3, [pid 3628] <... chdir resumed>) = 0 [pid 3627] close(10 [pid 3626] close(10 [pid 3612] lstat("./1/cgroup.cpu", [pid 3610] mkdir("./2", 0777 [pid 3628] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3610] <... mkdir resumed>) = 0 [pid 3607] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3628] <... prctl resumed>) = 0 [pid 3627] close(11 [pid 3626] close(11 [pid 3612] unlink("./1/cgroup.cpu" [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3629 attached [pid 3628] setpgid(0, 0 [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3607] getdents64(3, [pid 3629] chdir("./2" [pid 3628] <... setpgid resumed>) = 0 [pid 3627] close(12 [pid 3626] close(12 [pid 3612] getdents64(3, [pid 3610] <... clone resumed>, child_tidptr=0x555555f255d0) = 4 [pid 3629] <... chdir resumed>) = 0 [pid 3628] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3607] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3629] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3627] close(13 [pid 3629] <... prctl resumed>) = 0 [pid 3628] <... symlink resumed>) = 0 [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(13 [pid 3612] close(3 [pid 3607] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3629] setpgid(0, 0 [pid 3628] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 3627] close(14 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... close resumed>) = 0 [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3629] <... setpgid resumed>) = 0 [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(14 [pid 3628] <... symlink resumed>) = 0 [pid 3607] lstat("./1/binderfs", [pid 3627] close(15 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(15 [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3612] rmdir("./1" [pid 3629] <... symlink resumed>) = 0 [pid 3627] close(16 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] unlink("./1/binderfs" [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(16 [pid 3612] <... rmdir resumed>) = 0 [pid 3629] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 3628] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 3627] close(17 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] mkdir("./2", 0777 [pid 3607] <... unlink resumed>) = 0 [pid 3629] <... symlink resumed>) = 0 [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(17 [pid 3627] close(18 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... mkdir resumed>) = 0 [pid 3629] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 3607] umount2("./1/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3628] <... symlink resumed>) = 0 [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(18 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3629] <... symlink resumed>) = 0 [pid 3627] close(19 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] lstat("./1/cgroup", [pid 3626] close(19 [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3627] close(20 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] unlink("./1/cgroup"./strace-static-x86_64: Process 3630 attached [pid 3629] <... openat resumed>) = 3 [pid 3630] chdir("./2" [pid 3629] write(3, "1000", 4 [pid 3628] <... openat resumed>) = 3 [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(20 [pid 3612] <... clone resumed>, child_tidptr=0x555555f255d0) = 4 [pid 3607] <... unlink resumed>) = 0 [pid 3630] <... chdir resumed>) = 0 [pid 3629] <... write resumed>) = 4 [pid 3628] write(3, "1000", 4 [pid 3627] close(21 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] umount2("./1/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3630] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3629] close(3 [pid 3628] <... write resumed>) = 4 [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(21 [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3630] <... prctl resumed>) = 0 [pid 3629] <... close resumed>) = 0 [pid 3628] close(3 [pid 3627] close(22 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] lstat("./1/cgroup.net", [pid 3630] setpgid(0, 0 [pid 3629] symlink("/dev/binderfs", "./binderfs" [pid 3628] <... close resumed>) = 0 [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(22 [pid 3630] <... setpgid resumed>) = 0 [pid 3629] <... symlink resumed>) = 0 [pid 3628] symlink("/dev/binderfs", "./binderfs" [pid 3627] close(23 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3629] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(23 [pid 3607] unlink("./1/cgroup.net" [pid 3630] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 3628] <... symlink resumed>) = 0 [pid 3627] close(24 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(24 [pid 3628] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3607] <... unlink resumed>) = 0 [pid 3630] <... symlink resumed>) = 0 [pid 3629] <... openat resumed>) = 3 [pid 3627] close(25 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(25 [pid 3607] umount2("./1/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3627] close(26 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] close(26 [pid 3627] close(27 [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] lstat("./1/cgroup.cpu", [pid 3627] close(28 [pid 3626] close(27 [pid 3627] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3627] close(29) = -1 EBADF (Bad file descriptor) [pid 3626] close(28 [pid 3629] write(3, "29", 2 [pid 3607] unlink("./1/cgroup.cpu" [pid 3627] exit_group(0 [pid 3630] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 3627] <... exit_group resumed>) = ? [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... unlink resumed>) = 0 [pid 3630] <... symlink resumed>) = 0 [pid 3629] <... write resumed>) = 2 [pid 3628] <... openat resumed>) = 3 [pid 3630] symlink("/syzcgroup/net/syz5", "./cgroup.net") = 0 [pid 3630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3629] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3628] write(3, "29", 2 [pid 3627] +++ exited with 0 +++ [pid 3626] close(29 [pid 3607] getdents64(3, [pid 3630] write(3, "1000", 4 [pid 3626] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] <... write resumed>) = 4 [pid 3630] close(3) = 0 [pid 3630] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3626] exit_group(0 [pid 3628] <... write resumed>) = 2 [pid 3607] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3630] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3626] <... exit_group resumed>) = ? [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] close(3 [pid 3630] <... openat resumed>) = 3 [pid 3628] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3630] write(3, "29", 2) = 2 [pid 3630] mount(NULL, "./binderfs", "binder", 0, NULL) = -1 ENOMEM (Cannot allocate memory) [pid 3629] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3626] +++ exited with 0 +++ [pid 3608] restart_syscall(<... resuming interrupted clone ...> [pid 3607] <... close resumed>) = 0 [pid 3630] close(3 [pid 3629] close(3 [pid 3630] <... close resumed>) = 0 [pid 3629] <... close resumed>) = 0 [pid 3630] close(4 [pid 3629] close(4 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(5 [pid 3629] close(5 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(6 [pid 3629] close(6 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(7 [pid 3629] close(7 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(8 [pid 3629] close(8 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(9 [pid 3629] close(9 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(10 [pid 3629] close(10 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(11 [pid 3629] close(11 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(12 [pid 3629] close(12 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(13 [pid 3629] close(13 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(14 [pid 3629] close(14 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(15 [pid 3629] close(15 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(16 [pid 3629] close(16 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... restart_syscall resumed>) = 0 [pid 3607] rmdir("./1" [pid 3630] close(17 [pid 3629] close(17 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(18 [pid 3629] close(18 [pid 3607] <... rmdir resumed>) = 0 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] mkdir("./2", 0777 [pid 3630] close(19 [pid 3629] close(19 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(20 [pid 3629] close(20 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] <... mkdir resumed>) = 0 [pid 3630] close(21 [pid 3629] close(21 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3630] close(22 [pid 3629] close(22 [pid 3608] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3630] close(23 [pid 3629] close(23 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 3631 attached [pid 3630] close(24 [pid 3629] close(24 [pid 3609] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... openat resumed>) = 3 [pid 3631] chdir("./2" [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3631] <... chdir resumed>) = 0 [pid 3630] close(25 [pid 3629] close(25 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] fstat(3, [pid 3607] <... clone resumed>, child_tidptr=0x555555f255d0) = 4 [pid 3631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3631] <... prctl resumed>) = 0 [pid 3630] close(26 [pid 3629] close(26 [pid 3631] setpgid(0, 0 [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3608] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3631] <... setpgid resumed>) = 0 [pid 3630] close(27 [pid 3629] close(27 [pid 3631] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] <... openat resumed>) = 3 [pid 3608] getdents64(3, [pid 3631] <... symlink resumed>) = 0 [pid 3630] close(28 [pid 3629] close(28 [pid 3609] fstat(3, [pid 3631] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3631] <... symlink resumed>) = 0 [pid 3630] close(29 [pid 3629] close(29 [pid 3609] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3631] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 3630] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3629] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] getdents64(3, [pid 3608] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3631] <... symlink resumed>) = 0 [pid 3630] exit_group(0 [pid 3629] exit_group(0 [pid 3631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3630] <... exit_group resumed>) = ? [pid 3629] <... exit_group resumed>) = ? [pid 3609] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3631] <... openat resumed>) = 3 [pid 3630] +++ exited with 0 +++ [pid 3629] +++ exited with 0 +++ [pid 3628] <... mount resumed>) = 0 [pid 3609] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] lstat("./2/binderfs", [pid 3631] write(3, "1000", 4 [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3631] <... write resumed>) = 4 [pid 3612] restart_syscall(<... resuming interrupted clone ...> [pid 3610] restart_syscall(<... resuming interrupted clone ...> [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3631] close(3 [pid 3628] close(3 [pid 3612] <... restart_syscall resumed>) = 0 [pid 3610] <... restart_syscall resumed>) = 0 [pid 3609] lstat("./3/binderfs", [pid 3608] unlink("./2/binderfs" [pid 3631] <... close resumed>) = 0 [pid 3631] symlink("/dev/binderfs", "./binderfs" [pid 3628] <... close resumed>) = 0 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3608] <... unlink resumed>) = 0 [pid 3631] <... symlink resumed>) = 0 [pid 3628] close(4 [pid 3612] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] unlink("./3/binderfs" [pid 3631] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] umount2("./2/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3631] <... openat resumed>) = 3 [pid 3628] close(5 [pid 3612] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3610] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3609] <... unlink resumed>) = 0 [pid 3631] write(3, "29", 2 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... openat resumed>) = 3 [pid 3610] <... openat resumed>) = 3 [pid 3609] umount2("./3/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3631] <... write resumed>) = 2 [pid 3628] close(6 [pid 3612] fstat(3, [pid 3610] fstat(3, [pid 3631] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3610] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] lstat("./2/cgroup", [pid 3631] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3628] close(7 [pid 3612] getdents64(3, [pid 3610] getdents64(3, [pid 3609] lstat("./3/cgroup", [pid 3631] close(3 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3610] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3631] <... close resumed>) = 0 [pid 3628] close(8 [pid 3612] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3608] unlink("./2/cgroup" [pid 3631] close(4 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] unlink("./3/cgroup" [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(9 [pid 3612] lstat("./2/binderfs", [pid 3610] lstat("./2/binderfs", [pid 3608] <... unlink resumed>) = 0 [pid 3631] close(5 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3609] <... unlink resumed>) = 0 [pid 3608] umount2("./2/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(10 [pid 3612] unlink("./2/binderfs" [pid 3610] unlink("./2/binderfs" [pid 3609] umount2("./3/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3631] close(6 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3610] <... unlink resumed>) = 0 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] lstat("./2/cgroup.net", [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(11 [pid 3612] umount2("./2/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] umount2("./2/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] lstat("./3/cgroup.net", [pid 3631] close(7 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(12 [pid 3612] lstat("./2/cgroup", [pid 3610] lstat("./2/cgroup", [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] unlink("./2/cgroup.net" [pid 3631] close(8 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3609] unlink("./3/cgroup.net" [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(13 [pid 3612] unlink("./2/cgroup" [pid 3610] unlink("./2/cgroup" [pid 3608] <... unlink resumed>) = 0 [pid 3631] close(9 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3610] <... unlink resumed>) = 0 [pid 3609] <... unlink resumed>) = 0 [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(14 [pid 3612] umount2("./2/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] umount2("./2/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] umount2("./3/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] umount2("./2/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3631] close(10 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(15 [pid 3612] lstat("./2/cgroup.net", [pid 3610] lstat("./2/cgroup.net", [pid 3609] lstat("./3/cgroup.cpu", [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3631] close(11 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(16 [pid 3612] unlink("./2/cgroup.net" [pid 3610] unlink("./2/cgroup.net" [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] lstat("./2/cgroup.cpu", [pid 3631] close(12 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3610] <... unlink resumed>) = 0 [pid 3609] unlink("./3/cgroup.cpu" [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(17 [pid 3612] umount2("./2/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] umount2("./2/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3631] close(13 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] <... unlink resumed>) = 0 [pid 3608] unlink("./2/cgroup.cpu" [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(18 [pid 3612] lstat("./2/cgroup.cpu", [pid 3610] lstat("./2/cgroup.cpu", [pid 3609] getdents64(3, [pid 3631] close(14 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3609] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3608] <... unlink resumed>) = 0 [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(19 [ 50.866231][ T3628] debugfs: out of free dentries, can not create file 'scan' [pid 3612] unlink("./2/cgroup.cpu" [pid 3610] unlink("./2/cgroup.cpu" [pid 3609] close(3 [pid 3608] getdents64(3, [pid 3631] close(15 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3610] <... unlink resumed>) = 0 [pid 3609] <... close resumed>) = 0 [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(20 [pid 3612] getdents64(3, [pid 3610] getdents64(3, [pid 3609] rmdir("./3" [pid 3608] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3631] close(16 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3610] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] close(3 [pid 3631] close(17 [pid 3612] <... close resumed>) = 0 [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(21 [pid 3612] rmdir("./2" [pid 3610] close(3 [pid 3609] <... rmdir resumed>) = 0 [pid 3608] close(3 [pid 3631] close(18 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... rmdir resumed>) = 0 [pid 3610] <... close resumed>) = 0 [pid 3608] <... close resumed>) = 0 [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(22 [pid 3612] mkdir("./3", 0777 [pid 3610] rmdir("./2" [pid 3609] mkdir("./4", 0777 [pid 3631] close(19 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... mkdir resumed>) = 0 [pid 3608] rmdir("./2" [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3610] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 3632 attached [pid 3631] close(20 [pid 3628] close(23 [pid 3610] mkdir("./3", 0777 [pid 3609] <... mkdir resumed>) = 0 [pid 3608] <... rmdir resumed>) = 0 [pid 3632] chdir("./3" [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... clone resumed>, child_tidptr=0x555555f255d0) = 5 [pid 3631] close(21 [pid 3610] <... mkdir resumed>) = 0 [pid 3632] <... chdir resumed>) = 0 [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(24 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3608] mkdir("./3", 0777 [pid 3632] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3631] close(22 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3631] close(23) = -1 EBADF (Bad file descriptor) [pid 3631] close(24) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 3633 attached [pid 3631] close(25 [pid 3633] chdir("./3" [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 3634 attached [pid 3633] <... chdir resumed>) = 0 [pid 3631] close(26 [pid 3634] chdir("./4" [pid 3633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3632] <... prctl resumed>) = 0 [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(25 [pid 3610] <... clone resumed>, child_tidptr=0x555555f255d0) = 5 [pid 3609] <... clone resumed>, child_tidptr=0x555555f255d0) = 6 [pid 3608] <... mkdir resumed>) = 0 [pid 3634] <... chdir resumed>) = 0 [pid 3633] <... prctl resumed>) = 0 [pid 3632] setpgid(0, 0 [pid 3631] close(27 [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3633] setpgid(0, 0 [pid 3632] <... setpgid resumed>) = 0 [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] close(26 [pid 3634] <... prctl resumed>) = 0 [pid 3633] <... setpgid resumed>) = 0 [pid 3631] close(28./strace-static-x86_64: Process 3635 attached [pid 3634] setpgid(0, 0 [pid 3633] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 3632] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3635] chdir("./3" [pid 3634] <... setpgid resumed>) = 0 [pid 3633] <... symlink resumed>) = 0 [pid 3632] <... symlink resumed>) = 0 [pid 3631] close(29 [pid 3628] close(27 [pid 3608] <... clone resumed>, child_tidptr=0x555555f255d0) = 5 [pid 3635] <... chdir resumed>) = 0 [pid 3634] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 3633] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 3632] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 3631] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3635] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3634] <... symlink resumed>) = 0 [pid 3633] <... symlink resumed>) = 0 [pid 3632] <... symlink resumed>) = 0 [pid 3631] exit_group(0 [pid 3628] close(28 [pid 3635] <... prctl resumed>) = 0 [pid 3634] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 3633] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 3632] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 3631] <... exit_group resumed>) = ? [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3635] setpgid(0, 0 [pid 3634] <... symlink resumed>) = 0 [pid 3633] <... symlink resumed>) = 0 [pid 3632] <... symlink resumed>) = 0 [pid 3631] +++ exited with 0 +++ [pid 3628] close(29 [pid 3635] <... setpgid resumed>) = 0 [pid 3634] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 3633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3628] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3635] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 3634] <... symlink resumed>) = 0 [pid 3633] <... openat resumed>) = 3 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3635] <... symlink resumed>) = 0 [pid 3634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3633] write(3, "1000", 4 [pid 3635] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 3634] <... openat resumed>) = 3 [pid 3633] <... write resumed>) = 4 [pid 3632] <... openat resumed>) = 3 [pid 3628] exit_group(0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3635] <... symlink resumed>) = 0 [pid 3634] write(3, "1000", 4 [pid 3633] close(3 [pid 3632] write(3, "1000", 4 [pid 3628] <... exit_group resumed>) = ? [pid 3607] <... restart_syscall resumed>) = 0 [pid 3635] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 3634] <... write resumed>) = 4 [pid 3633] <... close resumed>) = 0 [pid 3632] <... write resumed>) = 4 [pid 3635] <... symlink resumed>) = 0 [pid 3634] close(3 [pid 3633] symlink("/dev/binderfs", "./binderfs" [pid 3635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3634] <... close resumed>) = 0 [pid 3633] <... symlink resumed>) = 0 [pid 3632] close(3 [pid 3628] +++ exited with 0 +++ [pid 3635] <... openat resumed>) = 3 [pid 3634] symlink("/dev/binderfs", "./binderfs" [pid 3633] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3632] <... close resumed>) = 0 [pid 3635] write(3, "1000", 4 [pid 3634] <... symlink resumed>) = 0 [pid 3633] <... openat resumed>) = 3 [pid 3632] symlink("/dev/binderfs", "./binderfs" [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3635] <... write resumed>) = 4 [pid 3634] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3633] write(3, "29", 2 [pid 3611] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3635] close(3 [pid 3634] <... openat resumed>) = 3 [pid 3633] <... write resumed>) = 2 [pid 3632] <... symlink resumed>) = 0 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3635] <... close resumed>) = 0 [pid 3634] write(3, "29", 2 [pid 3633] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3632] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3611] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3635] symlink("/dev/binderfs", "./binderfs" [pid 3634] <... write resumed>) = 2 [pid 3633] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3611] <... openat resumed>) = 3 [pid 3635] <... symlink resumed>) = 0 [pid 3634] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3633] close(3 [pid 3632] <... openat resumed>) = 3 [pid 3611] fstat(3, [pid 3607] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3635] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3632] write(3, "29", 2 [pid 3607] <... openat resumed>) = 3 [pid 3632] <... write resumed>) = 2 [pid 3607] fstat(3, [pid 3632] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3607] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3633] <... close resumed>) = 0 [pid 3607] getdents64(3, [pid 3635] <... openat resumed>) = 3 [pid 3633] close(4 [pid 3611] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3607] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3635] write(3, "29", 2 [pid 3634] <... mount resumed>) = 0 [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3611] getdents64(3, [pid 3607] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3635] <... write resumed>) = 2 [pid 3634] close(3 [pid 3633] close(5 [pid 3632] close(3 [pid 3611] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3635] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3634] <... close resumed>) = 0 [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = 0 [pid 3611] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] lstat("./2/binderfs", [pid 3635] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3634] close(4 [pid 3633] close(6 [pid 3632] close(4 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3635] close(3 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] lstat("./2/binderfs", [pid 3607] unlink("./2/binderfs" [pid 3635] <... close resumed>) = 0 [pid 3634] close(5 [pid 3633] close(7 [pid 3632] close(5 [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3635] close(4 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] unlink("./2/binderfs" [pid 3607] <... unlink resumed>) = 0 [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(6 [pid 3633] close(8 [pid 3632] close(6 [pid 3611] <... unlink resumed>) = 0 [pid 3607] umount2("./2/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3635] close(5 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] umount2("./2/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(7 [pid 3633] close(9 [pid 3632] close(7 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3635] close(6 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] lstat("./2/cgroup", [pid 3607] lstat("./2/cgroup", [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(8 [pid 3633] close(10 [pid 3632] close(8 [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3635] close(7 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] unlink("./2/cgroup" [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(9 [pid 3633] close(11 [pid 3632] close(9 [pid 3611] <... unlink resumed>) = 0 [pid 3607] unlink("./2/cgroup" [pid 3635] close(8 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] umount2("./2/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(10 [pid 3633] close(12 [pid 3632] close(10 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] <... unlink resumed>) = 0 [pid 3635] close(9 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] lstat("./2/cgroup.net", [pid 3607] umount2("./2/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(11 [pid 3633] close(13 [pid 3632] close(11 [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3635] close(10 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] unlink("./2/cgroup.net" [pid 3607] lstat("./2/cgroup.net", [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(12 [pid 3633] close(14 [pid 3632] close(12 [pid 3611] <... unlink resumed>) = 0 [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3635] close(11 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] umount2("./2/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] unlink("./2/cgroup.net" [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(13 [pid 3633] close(15 [pid 3632] close(13 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3635] close(12 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] lstat("./2/cgroup.cpu", [pid 3607] <... unlink resumed>) = 0 [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(14 [pid 3633] close(16 [pid 3632] close(14 [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3607] umount2("./2/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3635] close(13 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] unlink("./2/cgroup.cpu" [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(15 [pid 3633] close(17 [pid 3632] close(15 [pid 3611] <... unlink resumed>) = 0 [pid 3607] lstat("./2/cgroup.cpu", [pid 3635] close(14 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] getdents64(3, [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(16 [pid 3633] close(18 [pid 3632] close(16 [pid 3611] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3607] unlink("./2/cgroup.cpu" [pid 3635] close(15 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] close(3 [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(17 [pid 3633] close(19 [pid 3632] close(17 [pid 3611] <... close resumed>) = 0 [pid 3607] <... unlink resumed>) = 0 [pid 3635] close(16 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] rmdir("./2" [pid 3607] getdents64(3, [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(18 [pid 3633] close(20 [pid 3632] close(18 [pid 3611] <... rmdir resumed>) = 0 [pid 3607] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3635] close(17 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] mkdir("./3", 0777 [pid 3607] close(3 [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(19 [pid 3633] close(21 [pid 3632] close(19 [pid 3607] <... close resumed>) = 0 [pid 3607] rmdir("./2" [pid 3611] <... mkdir resumed>) = 0 [pid 3635] close(18 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... rmdir resumed>) = 0 [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(20 [pid 3633] close(22 [pid 3632] close(20 [pid 3607] mkdir("./3", 0777./strace-static-x86_64: Process 3636 attached [pid 3635] close(19 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... mkdir resumed>) = 0 [pid 3636] chdir("./3" [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(21 [pid 3633] close(23 [pid 3632] close(21 [pid 3611] <... clone resumed>, child_tidptr=0x555555f255d0) = 5 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3636] <... chdir resumed>) = 0 [pid 3635] close(20 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(22 [pid 3633] close(24./strace-static-x86_64: Process 3637 attached [pid 3636] <... prctl resumed>) = 0 [pid 3635] close(21 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] close(22 [pid 3607] <... clone resumed>, child_tidptr=0x555555f255d0) = 5 [pid 3637] chdir("./3" [pid 3636] setpgid(0, 0 [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(23 [pid 3633] close(25 [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] <... chdir resumed>) = 0 [pid 3636] <... setpgid resumed>) = 0 [pid 3635] close(22 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] close(23 [pid 3637] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3636] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(24 [pid 3633] close(26 [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] <... prctl resumed>) = 0 [pid 3636] <... symlink resumed>) = 0 [pid 3635] close(23 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] close(24 [pid 3637] setpgid(0, 0 [pid 3636] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(25 [pid 3633] close(27 [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 50.974826][ T3634] debugfs: out of free dentries, can not create file 'scan' [pid 3637] <... setpgid resumed>) = 0 [pid 3636] <... symlink resumed>) = 0 [pid 3635] close(24 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] close(25 [pid 3637] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 3636] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(26 [pid 3633] close(28 [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] <... symlink resumed>) = 0 [pid 3636] <... symlink resumed>) = 0 [pid 3635] close(25 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] close(26 [pid 3637] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 3636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(27 [pid 3633] close(29 [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] <... symlink resumed>) = 0 [pid 3636] <... openat resumed>) = 3 [pid 3635] close(26 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] close(27 [pid 3637] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 3636] write(3, "1000", 4 [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(28 [pid 3633] exit_group(0 [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] <... symlink resumed>) = 0 [pid 3636] <... write resumed>) = 4 [pid 3635] close(27 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3633] <... exit_group resumed>) = ? [pid 3632] close(28 [pid 3637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3636] close(3 [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] close(29 [pid 3633] +++ exited with 0 +++ [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] <... openat resumed>) = 3 [pid 3636] <... close resumed>) = 0 [pid 3635] close(28 [pid 3634] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3632] close(29 [pid 3637] write(3, "1000", 4 [pid 3636] symlink("/dev/binderfs", "./binderfs" [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] exit_group(0 [pid 3632] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3637] <... write resumed>) = 4 [pid 3636] <... symlink resumed>) = 0 [pid 3635] close(29 [pid 3634] <... exit_group resumed>) = ? [pid 3632] exit_group(0 [pid 3610] restart_syscall(<... resuming interrupted clone ...> [pid 3637] close(3 [pid 3636] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3635] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3634] +++ exited with 0 +++ [pid 3632] <... exit_group resumed>) = ? [pid 3610] <... restart_syscall resumed>) = 0 [pid 3637] <... close resumed>) = 0 [pid 3636] <... openat resumed>) = 3 [pid 3635] exit_group(0 [pid 3636] write(3, "29", 2 [pid 3635] <... exit_group resumed>) = ? [pid 3637] symlink("/dev/binderfs", "./binderfs" [pid 3636] <... write resumed>) = 2 [pid 3635] +++ exited with 0 +++ [pid 3632] +++ exited with 0 +++ [pid 3636] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3637] <... symlink resumed>) = 0 [pid 3636] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3612] restart_syscall(<... resuming interrupted clone ...> [pid 3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3637] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3636] close(3 [pid 3612] <... restart_syscall resumed>) = 0 [pid 3610] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3636] <... close resumed>) = 0 [pid 3637] <... openat resumed>) = 3 [pid 3636] close(4 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3637] write(3, "29", 2 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3609] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3637] <... write resumed>) = 2 [pid 3636] close(5 [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3637] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3610] <... openat resumed>) = 3 [pid 3609] <... openat resumed>) = 3 [pid 3636] close(6 [pid 3612] <... openat resumed>) = 3 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] fstat(3, [pid 3636] close(7 [pid 3612] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] getdents64(3, [pid 3636] close(8 [pid 3612] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3636] close(9 [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] lstat("./3/binderfs", [pid 3636] close(10 [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] unlink("./3/binderfs" [pid 3636] close(11 [pid 3612] <... unlink resumed>) = 0 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] umount2("./3/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3636] close(12 [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] lstat("./3/cgroup", [pid 3636] close(13 [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] unlink("./3/cgroup" [pid 3636] close(14 [pid 3612] <... unlink resumed>) = 0 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] umount2("./3/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3636] close(15 [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] lstat("./3/cgroup.net", [pid 3636] close(16 [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] unlink("./3/cgroup.net" [pid 3636] close(17 [pid 3612] <... unlink resumed>) = 0 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] umount2("./3/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3636] close(18 [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] lstat("./3/cgroup.cpu", [pid 3610] fstat(3, [pid 3609] fstat(3, [pid 3636] close(19 [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] unlink("./3/cgroup.cpu" [pid 3610] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3609] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3608] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3636] close(20 [pid 3612] <... unlink resumed>) = 0 [pid 3610] getdents64(3, [pid 3609] getdents64(3, [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] getdents64(3, [pid 3636] close(21 [pid 3612] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3610] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3609] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3608] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] close(3 [pid 3610] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3636] close(22 [pid 3612] <... close resumed>) = 0 [pid 3608] <... openat resumed>) = 3 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] rmdir("./3" [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] fstat(3, [pid 3636] close(23 [pid 3612] <... rmdir resumed>) = 0 [pid 3610] lstat("./3/binderfs", [pid 3609] lstat("./4/binderfs", [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] mkdir("./4", 0777 [pid 3608] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3637] <... mount resumed>) = 0 [pid 3636] close(24 [pid 3612] <... mkdir resumed>) = 0 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3608] getdents64(3, [pid 3637] close(3 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3610] unlink("./3/binderfs" [pid 3609] unlink("./4/binderfs"./strace-static-x86_64: Process 3638 attached [pid 3637] <... close resumed>) = 0 [pid 3636] close(25 [pid 3608] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... clone resumed>, child_tidptr=0x555555f255d0) = 6 [pid 3610] <... unlink resumed>) = 0 [pid 3609] <... unlink resumed>) = 0 [pid 3636] close(26 [pid 3608] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3638] chdir("./4") = 0 [pid 3637] close(4 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] umount2("./3/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] umount2("./4/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3638] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3636] close(27 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] lstat("./3/binderfs", [pid 3638] <... prctl resumed>) = 0 [pid 3637] close(5 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] lstat("./3/cgroup", [pid 3609] lstat("./4/cgroup", [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3638] setpgid(0, 0 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3636] close(28 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3608] unlink("./3/binderfs" [pid 3638] <... setpgid resumed>) = 0 [pid 3637] close(6 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] unlink("./3/cgroup" [pid 3609] unlink("./4/cgroup" [pid 3608] <... unlink resumed>) = 0 [pid 3638] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3636] close(29 [pid 3610] <... unlink resumed>) = 0 [pid 3608] umount2("./3/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3638] <... symlink resumed>) = 0 [pid 3637] close(7 [pid 3636] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] umount2("./3/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] <... unlink resumed>) = 0 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3638] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3636] exit_group(0 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] umount2("./4/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] lstat("./3/cgroup", [pid 3638] <... symlink resumed>) = 0 [pid 3637] close(8 [pid 3636] <... exit_group resumed>) = ? [pid 3610] lstat("./3/cgroup.net", [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3638] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] unlink("./3/cgroup" [pid 3638] <... symlink resumed>) = 0 [pid 3637] close(9 [pid 3636] +++ exited with 0 +++ [pid 3610] unlink("./3/cgroup.net" [pid 3609] lstat("./4/cgroup.net", [pid 3608] <... unlink resumed>) = 0 [pid 3638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3610] <... unlink resumed>) = 0 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] umount2("./3/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3638] <... openat resumed>) = 3 [pid 3637] close(10 [pid 3610] umount2("./3/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] unlink("./4/cgroup.net" [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3638] write(3, "1000", 4 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] <... unlink resumed>) = 0 [pid 3608] lstat("./3/cgroup.net", [pid 3638] <... write resumed>) = 4 [pid 3637] close(11 [pid 3610] lstat("./3/cgroup.cpu", [pid 3609] umount2("./4/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3638] close(3 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] unlink("./3/cgroup.net" [pid 3638] <... close resumed>) = 0 [pid 3637] close(12 [pid 3611] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] unlink("./3/cgroup.cpu" [pid 3609] lstat("./4/cgroup.cpu", [pid 3608] <... unlink resumed>) = 0 [pid 3638] symlink("/dev/binderfs", "./binderfs" [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... unlink resumed>) = 0 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] umount2("./3/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3638] <... symlink resumed>) = 0 [pid 3637] close(13 [pid 3611] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3610] getdents64(3, [pid 3609] unlink("./4/cgroup.cpu" [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3638] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... openat resumed>) = 3 [pid 3610] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3608] lstat("./3/cgroup.cpu", [pid 3638] <... openat resumed>) = 3 [pid 3637] close(14 [pid 3611] fstat(3, [pid 3610] close(3 [pid 3609] <... unlink resumed>) = 0 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3638] write(3, "29", 2 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3610] <... close resumed>) = 0 [pid 3609] getdents64(3, [pid 3608] unlink("./3/cgroup.cpu" [pid 3638] <... write resumed>) = 2 [pid 3637] close(15 [pid 3611] getdents64(3, [pid 3610] rmdir("./3" [pid 3609] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3608] <... unlink resumed>) = 0 [pid 3638] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3610] <... rmdir resumed>) = 0 [pid 3609] close(3 [pid 3608] getdents64(3, [pid 3638] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3637] close(16 [pid 3611] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] mkdir("./4", 0777 [pid 3609] <... close resumed>) = 0 [pid 3608] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3638] close(3 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... mkdir resumed>) = 0 [pid 3609] rmdir("./4" [pid 3608] close(3 [pid 3638] <... close resumed>) = 0 [pid 3637] close(17 [pid 3611] lstat("./3/binderfs", [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3608] <... close resumed>) = 0 ./strace-static-x86_64: Process 3639 attached [pid 3638] close(4 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3609] <... rmdir resumed>) = 0 [ 51.060662][ T3637] debugfs: out of free dentries, can not create file 'scan' [pid 3608] rmdir("./3" [pid 3639] chdir("./4" [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] close(18 [pid 3611] unlink("./3/binderfs" [pid 3610] <... clone resumed>, child_tidptr=0x555555f255d0) = 6 [pid 3609] mkdir("./5", 0777 [pid 3608] <... rmdir resumed>) = 0 [pid 3639] <... chdir resumed>) = 0 [pid 3638] close(5 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3608] mkdir("./4", 0777 [pid 3639] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] close(19 [pid 3611] umount2("./3/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] <... mkdir resumed>) = 0 [pid 3608] <... mkdir resumed>) = 0 [pid 3639] <... prctl resumed>) = 0 [pid 3638] close(6 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3640 attached ./strace-static-x86_64: Process 3641 attached [pid 3639] setpgid(0, 0 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] close(20 [pid 3611] lstat("./3/cgroup", [pid 3640] chdir("./5" [pid 3639] <... setpgid resumed>) = 0 [pid 3638] close(7 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3609] <... clone resumed>, child_tidptr=0x555555f255d0) = 7 [pid 3608] <... clone resumed>, child_tidptr=0x555555f255d0) = 6 [pid 3641] chdir("./4" [pid 3639] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] close(21 [pid 3611] unlink("./3/cgroup" [pid 3640] <... chdir resumed>) = 0 [pid 3641] <... chdir resumed>) = 0 [pid 3640] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3639] <... symlink resumed>) = 0 [pid 3638] close(8 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3641] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3640] <... prctl resumed>) = 0 [pid 3639] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] close(22 [pid 3611] umount2("./3/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3641] <... prctl resumed>) = 0 [pid 3640] setpgid(0, 0 [pid 3639] <... symlink resumed>) = 0 [pid 3638] close(9 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3641] setpgid(0, 0 [pid 3640] <... setpgid resumed>) = 0 [pid 3639] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] close(23 [pid 3611] lstat("./3/cgroup.net", [pid 3641] <... setpgid resumed>) = 0 [pid 3640] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 3638] close(10 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3639] <... symlink resumed>) = 0 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] close(24 [pid 3611] unlink("./3/cgroup.net" [pid 3641] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 3638] close(11 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] close(25 [pid 3611] umount2("./3/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3640] <... symlink resumed>) = 0 [pid 3639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3638] close(12 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3641] <... symlink resumed>) = 0 [pid 3641] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 3640] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 3639] <... openat resumed>) = 3 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] close(26 [pid 3611] lstat("./3/cgroup.cpu", [pid 3641] <... symlink resumed>) = 0 [pid 3639] write(3, "1000", 4 [pid 3638] close(13 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3641] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 3640] <... symlink resumed>) = 0 [pid 3639] <... write resumed>) = 4 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] close(27 [pid 3611] unlink("./3/cgroup.cpu" [pid 3641] <... symlink resumed>) = 0 [pid 3640] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 3639] close(3 [pid 3638] close(14 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3640] <... symlink resumed>) = 0 [pid 3639] <... close resumed>) = 0 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] close(28 [pid 3611] getdents64(3, [pid 3641] <... openat resumed>) = 3 [pid 3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3639] symlink("/dev/binderfs", "./binderfs" [pid 3638] close(15 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3641] write(3, "1000", 4 [pid 3640] <... openat resumed>) = 3 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] close(29 [pid 3611] close(3 [pid 3641] <... write resumed>) = 4 [pid 3640] write(3, "1000", 4 [pid 3639] <... symlink resumed>) = 0 [pid 3638] close(16 [pid 3637] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... close resumed>) = 0 [pid 3641] close(3 [pid 3640] <... write resumed>) = 4 [pid 3639] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3637] exit_group(0 [pid 3611] rmdir("./3" [pid 3641] <... close resumed>) = 0 [pid 3640] close(3 [pid 3639] <... openat resumed>) = 3 [pid 3638] close(17 [pid 3637] <... exit_group resumed>) = ? [pid 3611] <... rmdir resumed>) = 0 [pid 3641] symlink("/dev/binderfs", "./binderfs" [pid 3640] <... close resumed>) = 0 [pid 3639] write(3, "29", 2 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] <... symlink resumed>) = 0 [pid 3640] symlink("/dev/binderfs", "./binderfs" [pid 3639] <... write resumed>) = 2 [pid 3638] close(18 [pid 3637] +++ exited with 0 +++ [pid 3611] mkdir("./4", 0777 [pid 3641] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3640] <... symlink resumed>) = 0 [pid 3639] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] <... openat resumed>) = 3 [pid 3640] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3639] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3611] <... mkdir resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3641] write(3, "29", 2 [pid 3640] <... openat resumed>) = 3 [pid 3639] close(3 [pid 3638] close(19 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3641] <... write resumed>) = 2 [pid 3640] write(3, "29", 2 [pid 3639] <... close resumed>) = 0 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3640] <... write resumed>) = 2 [pid 3639] close(4 [pid 3638] close(20./strace-static-x86_64: Process 3642 attached [pid 3641] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3640] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... clone resumed>, child_tidptr=0x555555f255d0) = 6 [pid 3642] chdir("./4" [pid 3641] close(3 [pid 3639] close(5 [pid 3638] close(21 [pid 3641] <... close resumed>) = 0 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] close(4 [pid 3639] close(6 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3642] <... chdir resumed>) = 0 [pid 3641] close(5 [pid 3640] close(3 [pid 3639] close(7 [pid 3638] close(22 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] <... close resumed>) = 0 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3641] close(6 [pid 3640] close(4 [pid 3639] close(8 [pid 3638] close(23 [pid 3642] setpgid(0, 0 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3642] <... setpgid resumed>) = 0 [pid 3641] close(7 [pid 3640] close(5 [pid 3639] close(9 [pid 3638] close(24 [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3642] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 3641] close(8 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] close(10 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(6 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3638] close(25 [pid 3642] <... symlink resumed>) = 0 [pid 3641] close(9 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] close(11 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... openat resumed>) = 3 [pid 3642] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(7 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3638] close(26 [pid 3607] fstat(3, [pid 3641] close(10 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] close(12 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3642] <... symlink resumed>) = 0 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(8 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3638] close(27 [pid 3607] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3642] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 3641] close(11 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] close(13 [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] getdents64(3, [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3642] <... symlink resumed>) = 0 [pid 3641] close(12 [pid 3640] close(9 [pid 3639] close(14 [pid 3638] close(28 [pid 3642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3642] <... openat resumed>) = 3 [pid 3641] close(13 [pid 3640] close(10 [pid 3639] close(15 [pid 3638] close(29 [pid 3642] write(3, "1000", 4 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3638] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3642] <... write resumed>) = 4 [pid 3641] close(14 [pid 3640] close(11 [pid 3639] close(16 [pid 3638] exit_group(0 [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3642] close(3 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3638] <... exit_group resumed>) = ? [pid 3607] lstat("./3/binderfs", [pid 3642] <... close resumed>) = 0 [pid 3641] close(15 [pid 3640] close(12 [pid 3639] close(17 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] close(16 [pid 3639] close(18 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] close(17 [pid 3639] close(19 [pid 3638] +++ exited with 0 +++ [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3642] symlink("/dev/binderfs", "./binderfs" [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(13 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] unlink("./3/binderfs" [pid 3642] <... symlink resumed>) = 0 [pid 3641] close(18 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] close(20 [pid 3612] restart_syscall(<... resuming interrupted clone ...> [pid 3642] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(14 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... restart_syscall resumed>) = 0 [pid 3607] <... unlink resumed>) = 0 [pid 3642] <... openat resumed>) = 3 [pid 3641] close(19 [pid 3639] close(21 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] umount2("./3/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3642] write(3, "29", 2 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(15 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3642] <... write resumed>) = 2 [pid 3641] close(20 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] close(22 [pid 3612] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3642] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(16 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] lstat("./3/cgroup", [pid 3641] close(21 [pid 3639] close(23 [pid 3612] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... openat resumed>) = 3 [pid 3642] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3641] close(22 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] close(24 [pid 3612] fstat(3, [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3642] close(3 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(17 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3607] unlink("./3/cgroup" [pid 3642] <... close resumed>) = 0 [pid 3641] close(23 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] close(25 [pid 3612] getdents64(3, [pid 3642] close(4 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(18 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3607] <... unlink resumed>) = 0 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] close(24 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] close(26 [pid 3612] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3642] close(5 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(19 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] umount2("./3/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] close(25 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] close(27 [pid 3612] lstat("./4/binderfs", [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3642] close(6 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(20 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3607] lstat("./3/cgroup.net", [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] close(26 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] close(28 [pid 3612] unlink("./4/binderfs" [pid 3642] close(7 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(21 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] close(27 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] close(29 [pid 3612] umount2("./4/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] unlink("./3/cgroup.net" [pid 3642] close(8 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(22 [pid 3639] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] close(28 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] exit_group(0 [pid 3612] lstat("./4/cgroup", [pid 3607] <... unlink resumed>) = 0 [pid 3642] close(9 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(23 [pid 3639] <... exit_group resumed>) = ? [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3607] umount2("./3/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] close(29 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3639] +++ exited with 0 +++ [pid 3612] unlink("./4/cgroup" [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3642] close(10 [pid 3641] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] close(24 [pid 3612] <... unlink resumed>) = 0 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] exit_group(0 [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] umount2("./4/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] lstat("./3/cgroup.cpu", [pid 3642] close(11 [pid 3641] <... exit_group resumed>) = ? [pid 3640] close(25 [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3641] +++ exited with 0 +++ [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] lstat("./4/cgroup.net", [pid 3610] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3642] close(12 [pid 3640] close(26 [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] unlink("./3/cgroup.cpu" [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] unlink("./4/cgroup.net" [pid 3610] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3642] close(13 [pid 3640] close(27 [pid 3612] <... unlink resumed>) = 0 [pid 3607] <... unlink resumed>) = 0 [pid 3612] umount2("./4/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] <... openat resumed>) = 3 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] fstat(3, [pid 3607] getdents64(3, [pid 3642] close(14 [pid 3640] close(28 [pid 3612] lstat("./4/cgroup.cpu", [pid 3610] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] getdents64(3, [pid 3607] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3642] close(15 [pid 3640] close(29 [pid 3612] unlink("./4/cgroup.cpu" [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3608] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3607] close(3 [pid 3642] close(16 [pid 3640] exit_group(0 [pid 3612] getdents64(3, [pid 3610] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3640] <... exit_group resumed>) = ? [pid 3612] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] <... openat resumed>) = 3 [pid 3607] <... close resumed>) = 0 [pid 3642] close(17 [pid 3612] close(3) = 0 [pid 3612] rmdir("./4") = 0 [pid 3640] +++ exited with 0 +++ [pid 3612] mkdir("./5", 0777 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... mkdir resumed>) = 0 [pid 3610] lstat("./4/binderfs", [pid 3608] fstat(3, [pid 3607] rmdir("./3" [pid 3642] close(18 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3643 attached [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3608] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3607] <... rmdir resumed>) = 0 [pid 3642] close(19 [pid 3612] <... clone resumed>, child_tidptr=0x555555f255d0) = 7 [pid 3610] unlink("./4/binderfs" [pid 3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3643] chdir("./5" [pid 3608] getdents64(3, [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... unlink resumed>) = 0 [pid 3642] close(20 [pid 3608] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] <... chdir resumed>) = 0 [pid 3608] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3642] close(21 [pid 3607] mkdir("./4", 0777 [pid 3610] umount2("./4/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3643] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] <... mkdir resumed>) = 0 [pid 3642] close(22 [pid 3608] lstat("./4/binderfs", [pid 3643] <... prctl resumed>) = 0 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3643] setpgid(0, 0 [pid 3642] close(23 [pid 3610] lstat("./4/cgroup", [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 3644 attached [pid 3643] <... setpgid resumed>) = 0 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] unlink("./4/binderfs" [pid 3644] chdir("./4" [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3609] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3644] <... chdir resumed>) = 0 [pid 3643] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 3642] close(24 [pid 3644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3610] unlink("./4/cgroup" [pid 3608] <... unlink resumed>) = 0 [pid 3644] <... prctl resumed>) = 0 [pid 3643] <... symlink resumed>) = 0 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3644] setpgid(0, 0 [pid 3609] <... openat resumed>) = 3 [pid 3644] <... setpgid resumed>) = 0 [pid 3642] close(25 [pid 3610] <... unlink resumed>) = 0 [pid 3608] umount2("./4/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] fstat(3, [pid 3644] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 3643] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] umount2("./4/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] <... clone resumed>, child_tidptr=0x555555f255d0) = 6 [pid 3644] <... symlink resumed>) = 0 [pid 3643] <... symlink resumed>) = 0 [pid 3642] close(26 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] lstat("./4/cgroup", [pid 3644] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 3643] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] lstat("./4/cgroup.net", [pid 3609] getdents64(3, [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3644] <... symlink resumed>) = 0 [pid 3643] <... symlink resumed>) = 0 [pid 3642] close(27 [pid 3644] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3609] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] unlink("./4/cgroup" [pid 3643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3644] <... symlink resumed>) = 0 [pid 3642] close(28 [pid 3610] unlink("./4/cgroup.net" [pid 3609] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3608] <... unlink resumed>) = 0 [pid 3644] <... openat resumed>) = 3 [pid 3643] <... openat resumed>) = 3 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... unlink resumed>) = 0 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] umount2("./4/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3644] write(3, "1000", 4 [pid 3643] write(3, "1000", 4 [pid 3642] close(29 [pid 3610] umount2("./4/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] lstat("./5/binderfs", [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3644] <... write resumed>) = 4 [pid 3643] <... write resumed>) = 4 [pid 3642] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3644] close(3 [pid 3643] close(3 [pid 3608] lstat("./4/cgroup.net", [pid 3644] <... close resumed>) = 0 [pid 3643] <... close resumed>) = 0 [pid 3642] exit_group(0 [pid 3610] lstat("./4/cgroup.cpu", [pid 3609] unlink("./5/binderfs" [pid 3644] symlink("/dev/binderfs", "./binderfs" [pid 3643] symlink("/dev/binderfs", "./binderfs" [pid 3642] <... exit_group resumed>) = ? [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3644] <... symlink resumed>) = 0 [pid 3643] <... symlink resumed>) = 0 [pid 3609] <... unlink resumed>) = 0 [pid 3644] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 3 [pid 3644] write(3, "29", 2) = 2 [pid 3610] unlink("./4/cgroup.cpu" [pid 3609] umount2("./5/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] unlink("./4/cgroup.net" [pid 3644] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3643] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3642] +++ exited with 0 +++ [pid 3610] <... unlink resumed>) = 0 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] <... unlink resumed>) = 0 [pid 3644] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3610] getdents64(3, [pid 3609] lstat("./5/cgroup", [pid 3608] umount2("./4/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3644] close(3 [pid 3643] <... openat resumed>) = 3 [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3610] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3644] <... close resumed>) = 0 [pid 3643] write(3, "29", 2 [pid 3610] close(3 [pid 3609] unlink("./5/cgroup" [pid 3608] lstat("./4/cgroup.cpu", [pid 3644] close(4 [pid 3643] <... write resumed>) = 2 [pid 3610] <... close resumed>) = 0 [pid 3609] <... unlink resumed>) = 0 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3611] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3610] rmdir("./4" [pid 3609] umount2("./5/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] unlink("./4/cgroup.cpu" [pid 3644] close(5 [pid 3643] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3610] <... rmdir resumed>) = 0 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] <... unlink resumed>) = 0 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(3 [pid 3611] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3610] mkdir("./5", 0777 [pid 3609] lstat("./5/cgroup.net", [pid 3608] getdents64(3, [pid 3644] close(6 [pid 3643] <... close resumed>) = 0 [pid 3611] <... openat resumed>) = 3 [pid 3610] <... mkdir resumed>) = 0 [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(4 [pid 3611] fstat(3, [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3609] unlink("./5/cgroup.net" [pid 3608] close(3./strace-static-x86_64: Process 3645 attached [pid 3644] close(7 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3609] <... unlink resumed>) = 0 [pid 3608] <... close resumed>) = 0 [pid 3645] chdir("./5" [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(5 [pid 3611] getdents64(3, [pid 3610] <... clone resumed>, child_tidptr=0x555555f255d0) = 7 [pid 3609] umount2("./5/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] rmdir("./4" [pid 3645] <... chdir resumed>) = 0 [pid 3644] close(8 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3609] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] <... rmdir resumed>) = 0 [pid 3645] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(6 [pid 3611] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] lstat("./5/cgroup.cpu", [pid 3608] mkdir("./5", 0777 [pid 3645] <... prctl resumed>) = 0 [pid 3644] close(9 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] <... mkdir resumed>) = 0 [pid 3645] setpgid(0, 0 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(7 [pid 3611] lstat("./4/binderfs", [pid 3609] unlink("./5/cgroup.cpu" [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3646 attached [pid 3645] <... setpgid resumed>) = 0 [pid 3644] close(10 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3609] <... unlink resumed>) = 0 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] getdents64(3, [pid 3608] <... clone resumed>, child_tidptr=0x555555f255d0) = 7 [pid 3646] chdir("./5" [pid 3645] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 3644] close(11 [pid 3643] close(8 [pid 3611] unlink("./4/binderfs" [pid 3609] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3646] <... chdir resumed>) = 0 [pid 3645] <... symlink resumed>) = 0 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] close(3 [pid 3646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3645] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 3644] close(12 [pid 3643] close(9 [pid 3611] <... unlink resumed>) = 0 [pid 3609] <... close resumed>) = 0 [pid 3646] <... prctl resumed>) = 0 [pid 3645] <... symlink resumed>) = 0 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] umount2("./4/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3609] rmdir("./5" [pid 3646] setpgid(0, 0 [pid 3645] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 3644] close(13 [pid 3643] close(10 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3609] <... rmdir resumed>) = 0 [pid 3646] <... setpgid resumed>) = 0 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3609] mkdir("./6", 0777 [pid 3646] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 3645] <... symlink resumed>) = 0 [pid 3644] close(14 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] lstat("./4/cgroup", [pid 3609] <... mkdir resumed>) = 0 [pid 3646] <... symlink resumed>) = 0 [pid 3645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(11 [pid 3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 ./strace-static-x86_64: Process 3647 attached [pid 3646] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 3645] <... openat resumed>) = 3 [pid 3644] close(15 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] unlink("./4/cgroup" [pid 3647] chdir("./6" [pid 3646] <... symlink resumed>) = 0 [pid 3645] write(3, "1000", 4 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(12 [pid 3609] <... clone resumed>, child_tidptr=0x555555f255d0) = 8 [pid 3647] <... chdir resumed>) = 0 [pid 3646] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 3645] <... write resumed>) = 4 [pid 3644] close(16 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3646] <... symlink resumed>) = 0 [pid 3645] close(3 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(13 [pid 3611] umount2("./4/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3647] <... prctl resumed>) = 0 [pid 3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3645] <... close resumed>) = 0 [pid 3644] close(17 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3647] setpgid(0, 0 [pid 3645] symlink("/dev/binderfs", "./binderfs" [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3647] <... setpgid resumed>) = 0 [pid 3646] <... openat resumed>) = 3 [pid 3644] close(18 [pid 3643] close(14 [pid 3611] lstat("./4/cgroup.net", [pid 3645] <... symlink resumed>) = 0 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3647] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 3646] write(3, "1000", 4 [pid 3644] close(19 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3647] <... symlink resumed>) = 0 [pid 3646] <... write resumed>) = 4 [pid 3645] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(15 [pid 3611] unlink("./4/cgroup.net" [pid 3647] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 3646] close(3 [pid 3644] close(20 [pid 3645] <... openat resumed>) = 3 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3644] close(21 [pid 3611] <... unlink resumed>) = 0 [pid 3647] <... symlink resumed>) = 0 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(16 [pid 3647] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 3646] <... close resumed>) = 0 [pid 3645] write(3, "29", 2 [pid 3644] close(22 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] umount2("./4/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3647] <... symlink resumed>) = 0 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(17 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3646] symlink("/dev/binderfs", "./binderfs" [pid 3645] <... write resumed>) = 2 [pid 3644] close(23 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] lstat("./4/cgroup.cpu", [pid 3647] <... openat resumed>) = 3 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(18 [pid 3646] <... symlink resumed>) = 0 [pid 3644] close(24 [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3647] write(3, "1000", 4 [pid 3646] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3645] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] unlink("./4/cgroup.cpu" [pid 3647] <... write resumed>) = 4 [pid 3644] close(25 [pid 3646] <... openat resumed>) = 3 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(19 [pid 3644] close(26 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3644] close(27) = -1 EBADF (Bad file descriptor) [pid 3645] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3644] close(28 [pid 3647] close(3 [pid 3646] write(3, "29", 2 [pid 3645] close(3 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(20 [pid 3611] getdents64(3, [pid 3647] <... close resumed>) = 0 [pid 3646] <... write resumed>) = 2 [pid 3645] <... close resumed>) = 0 [pid 3644] close(29 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3647] symlink("/dev/binderfs", "./binderfs" [pid 3646] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3645] close(4 [pid 3644] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(21 [pid 3611] close(3 [pid 3647] <... symlink resumed>) = 0 [pid 3644] exit_group(0 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3644] <... exit_group resumed>) = ? [pid 3647] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3646] <... mount resumed>) = 0 [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3644] +++ exited with 0 +++ [pid 3643] close(22 [pid 3611] <... close resumed>) = 0 [pid 3647] <... openat resumed>) = 3 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] rmdir("./4" [pid 3645] close(5 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3646] close(3 [pid 3647] write(3, "29", 2 [pid 3643] close(23 [pid 3611] <... rmdir resumed>) = 0 [pid 3646] <... close resumed>) = 0 [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] mkdir("./5", 0777 [pid 3647] <... write resumed>) = 2 [pid 3646] close(4 [pid 3645] close(6 [pid 3643] close(24 [pid 3611] <... mkdir resumed>) = 0 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3647] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3645] close(7 [pid 3643] close(25 [pid 3607] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 3648 attached [pid 3646] close(5 [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3648] chdir("./5" [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3645] close(8 [pid 3643] close(26 [pid 3611] <... clone resumed>, child_tidptr=0x555555f255d0) = 7 [pid 3607] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3648] <... chdir resumed>) = 0 [pid 3648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3648] setpgid(0, 0) = 0 [pid 3648] symlink("/syzcgroup/unified/syz3", "./cgroup") = 0 [pid 3648] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu") = 0 [pid 3648] symlink("/syzcgroup/net/syz3", "./cgroup.net") = 0 [pid 3648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3648] write(3, "1000", 4) = 4 [pid 3648] close(3) = 0 [pid 3648] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3648] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 3 [pid 3648] write(3, "29", 2) = 2 [pid 3648] mount(NULL, "./binderfs", "binder", 0, NULL) = -1 ENOMEM (Cannot allocate memory) [pid 3648] close(3) = 0 [pid 3648] close(4) = -1 EBADF (Bad file descriptor) [ 51.300924][ T3647] ================================================================== [ 51.309022][ T3647] BUG: KASAN: double-free in kfree+0xe2/0x4d0 [ 51.315120][ T3647] [ 51.317451][ T3647] CPU: 0 PID: 3647 Comm: syz-executor232 Not tainted 5.19.0-rc4-next-20220628-syzkaller #0 [ 51.327443][ T3647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 51.337508][ T3647] Call Trace: [ 51.340801][ T3647] [ 51.343740][ T3647] dump_stack_lvl+0xcd/0x134 [ 51.348370][ T3647] print_report.cold+0x2ba/0x719 [ 51.353330][ T3647] ? kfree+0xe2/0x4d0 [ 51.357338][ T3647] ? kfree+0xe2/0x4d0 [ 51.361344][ T3647] kasan_report_invalid_free+0x8f/0x1a0 [ 51.366997][ T3647] ? __phys_addr+0x20/0x140 [ 51.371523][ T3647] ? kfree+0xe2/0x4d0 [ 51.375542][ T3647] ____kasan_slab_free+0x18b/0x1c0 [ 51.380672][ T3647] slab_free_freelist_hook+0x8b/0x1c0 [ 51.386072][ T3647] ? kfree_const+0x51/0x60 [ 51.390512][ T3647] kfree+0xe2/0x4d0 [ 51.394354][ T3647] kfree_const+0x51/0x60 [ 51.398619][ T3647] free_prealloced_shrinker+0x32/0x160 [ 51.404093][ T3647] destroy_unused_super.part.0+0x106/0x170 [ 51.409927][ T3647] alloc_super+0x8bd/0xaa0 [ 51.414367][ T3647] sget_fc+0x13e/0x7c0 [ 51.418462][ T3647] ? set_anon_super+0xb0/0xb0 [ 51.423159][ T3647] ? binderfs_create_file+0x2e0/0x2e0 [ 51.428586][ T3647] get_tree_nodev+0x24/0x1d0 [ 51.433202][ T3647] vfs_get_tree+0x89/0x2f0 [ 51.437639][ T3647] path_mount+0x1320/0x1fa0 [ 51.442161][ T3647] ? putname+0xfe/0x140 [ 51.446337][ T3647] ? kmem_cache_free+0xeb/0x5b0 [ 51.451202][ T3647] ? finish_automount+0xaf0/0xaf0 [ 51.456246][ T3647] ? putname+0xfe/0x140 [ 51.460428][ T3647] __x64_sys_mount+0x27f/0x300 [ 51.465210][ T3647] ? copy_mnt_ns+0xae0/0xae0 [ 51.469816][ T3647] ? lockdep_hardirqs_on+0x79/0x100 [ 51.475036][ T3647] ? _raw_spin_unlock_irq+0x2a/0x40 [ 51.480263][ T3647] ? ptrace_notify+0xfa/0x140 [ 51.484963][ T3647] do_syscall_64+0x35/0xb0 [ 51.489398][ T3647] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 51.495310][ T3647] RIP: 0033:0x7f84280f4ef9 [ 51.499740][ T3647] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 51.519365][ T3647] RSP: 002b:00007ffc55338338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 51.527796][ T3647] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f84280f4ef9 [ 51.535783][ T3647] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 51.543770][ T3647] RBP: 00007ffc55338360 R08: 0000000000000000 R09: 00007ffc55338370 [ 51.551759][ T3647] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 51.559741][ T3647] R13: 00007ffc55338380 R14: 00007ffc553383c0 R15: 0000000000000006 [ 51.567737][ T3647] [ 51.570758][ T3647] [ 51.573089][ T3647] Allocated by task 143: [ 51.577332][ T3647] kasan_save_stack+0x1e/0x40 [ 51.582021][ T3647] __kasan_kmalloc+0xa9/0xd0 [ 51.586625][ T3647] usb_hcd_submit_urb+0x661/0x2220 [ 51.591757][ T3647] usb_submit_urb+0x86d/0x1880 [ 51.596546][ T3647] usb_start_wait_urb+0x101/0x4b0 [ 51.601591][ T3647] usb_control_msg+0x31c/0x4a0 [ 51.606377][ T3647] hub_ext_port_status+0x112/0x450 [ 51.611517][ T3647] hub_activate+0xa5c/0x1c90 [ 51.616128][ T3647] process_one_work+0x991/0x1610 [ 51.621085][ T3647] worker_thread+0x665/0x1080 [ 51.625781][ T3647] kthread+0x2e9/0x3a0 [ 51.629870][ T3647] ret_from_fork+0x1f/0x30 [ 51.634307][ T3647] [ 51.636637][ T3647] Freed by task 3647: [ 51.640628][ T3647] kasan_save_stack+0x1e/0x40 [ 51.645319][ T3647] kasan_set_track+0x21/0x30 [ 51.649924][ T3647] kasan_set_free_info+0x20/0x30 [ 51.654880][ T3647] ____kasan_slab_free+0x166/0x1c0 [ 51.660006][ T3647] slab_free_freelist_hook+0x8b/0x1c0 [ 51.665404][ T3647] kfree+0xe2/0x4d0 [ 51.669230][ T3647] kfree_const+0x51/0x60 [ 51.673492][ T3647] prealloc_shrinker+0x179/0x1b0 [ 51.678450][ T3647] alloc_super+0x831/0xaa0 [ 51.682889][ T3647] sget_fc+0x13e/0x7c0 [ 51.686972][ T3647] get_tree_nodev+0x24/0x1d0 [ 51.691581][ T3647] vfs_get_tree+0x89/0x2f0 [ 51.696014][ T3647] path_mount+0x1320/0x1fa0 [ 51.700536][ T3647] __x64_sys_mount+0x27f/0x300 [ 51.705323][ T3647] do_syscall_64+0x35/0xb0 [ 51.709758][ T3647] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 51.715663][ T3647] [ 51.718007][ T3647] The buggy address belongs to the object at ffff888147889b20 [ 51.718007][ T3647] which belongs to the cache kmalloc-16 of size 16 [ 51.731898][ T3647] The buggy address is located 0 bytes inside of [ 51.731898][ T3647] 16-byte region [ffff888147889b20, ffff888147889b30) [ 51.745028][ T3647] [ 51.747357][ T3647] The buggy address belongs to the physical page: [ 51.753775][ T3647] page:ffffea00051e2240 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x147889 [ 51.764023][ T3647] flags: 0x57ff00000000200(slab|node=1|zone=2|lastcpupid=0x7ff) [ 51.771669][ T3647] raw: 057ff00000000200 ffffea00051e2ac0 dead000000000002 ffff8880118413c0 [ 51.780264][ T3647] raw: 0000000000000000 0000000080800080 00000001ffffffff 0000000000000000 [ 51.788853][ T3647] page dumped because: kasan: bad access detected [ 51.795266][ T3647] page_owner tracks the page as allocated [ 51.800985][ T3647] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, tgid 1 (swapper/0), ts 8392902276, free_ts 0 [ 51.817586][ T3647] get_page_from_freelist+0x210d/0x3a30 [ 51.823155][ T3647] __alloc_pages+0x1c7/0x510 [ 51.827775][ T3647] alloc_page_interleave+0x1e/0x200 [ 51.832986][ T3647] alloc_pages+0x2b1/0x310 [ 51.837420][ T3647] allocate_slab+0x27e/0x3d0 [ 51.842035][ T3647] ___slab_alloc+0x89d/0xef0 [ 51.846657][ T3647] __slab_alloc.constprop.0+0x4d/0xa0 [ 51.852052][ T3647] __kmalloc_track_caller+0x382/0x430 [ 51.857454][ T3647] kstrdup+0x36/0x70 [ 51.861367][ T3647] kstrdup_const+0x53/0x80 [ 51.865809][ T3647] __kernfs_new_node+0x9d/0x8b0 [ 51.870678][ T3647] kernfs_new_node+0x93/0x120 [ 51.875372][ T3647] kernfs_create_link+0xcb/0x230 [ 51.880339][ T3647] sysfs_do_create_link_sd+0x90/0x140 [ 51.885738][ T3647] sysfs_create_link+0x5f/0xc0 [ 51.890526][ T3647] driver_sysfs_add+0xf7/0x350 [ 51.895315][ T3647] page_owner free stack trace missing [ 51.900692][ T3647] [ 51.903021][ T3647] Memory state around the buggy address: [ 51.908661][ T3647] ffff888147889a00: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc [ 51.914937][ T3656] debugfs: out of free dentries, can not create file 'scan' [ 51.916720][ T3647] ffff888147889a80: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc [ 51.932063][ T3647] >ffff888147889b00: fb fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 51.940140][ T3647] ^ [ 51.945254][ T3647] ffff888147889b80: 00 00 fc fc fa fb fc fc fa fb fc fc fa fb fc fc [pid 3648] close(5) = -1 EBADF (Bad file descriptor) [pid 3648] close(6) = -1 EBADF (Bad file descriptor) [pid 3648] close(7) = -1 EBADF (Bad file descriptor) [pid 3648] close(8) = -1 EBADF (Bad file descriptor) [pid 3648] close(9) = -1 EBADF (Bad file descriptor) [pid 3648] close(10) = -1 EBADF (Bad file descriptor) [pid 3648] close(11) = -1 EBADF (Bad file descriptor) [pid 3648] close(12) = -1 EBADF (Bad file descriptor) [pid 3648] close(13) = -1 EBADF (Bad file descriptor) [pid 3648] close(14) = -1 EBADF (Bad file descriptor) [pid 3648] close(15) = -1 EBADF (Bad file descriptor) [pid 3648] close(16) = -1 EBADF (Bad file descriptor) [pid 3648] close(17) = -1 EBADF (Bad file descriptor) [pid 3648] close(18) = -1 EBADF (Bad file descriptor) [pid 3648] close(19) = -1 EBADF (Bad file descriptor) [pid 3648] close(20) = -1 EBADF (Bad file descriptor) [pid 3648] close(21) = -1 EBADF (Bad file descriptor) [pid 3648] close(22) = -1 EBADF (Bad file descriptor) [pid 3648] close(23) = -1 EBADF (Bad file descriptor) [pid 3648] close(24) = -1 EBADF (Bad file descriptor) [pid 3648] close(25) = -1 EBADF (Bad file descriptor) [pid 3648] close(26) = -1 EBADF (Bad file descriptor) [pid 3648] close(27) = -1 EBADF (Bad file descriptor) [pid 3648] close(28) = -1 EBADF (Bad file descriptor) [pid 3648] close(29) = -1 EBADF (Bad file descriptor) [pid 3648] exit_group(0) = ? [pid 3648] +++ exited with 0 +++ [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3611] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3611] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3611] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3611] getdents64(3, 0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3611] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3646] close(6 [pid 3611] lstat("./5/binderfs", [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3646] close(7 [pid 3611] unlink("./5/binderfs" [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3646] close(8 [pid 3611] umount2("./5/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3646] close(9 [pid 3611] lstat("./5/cgroup", [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3646] close(10 [pid 3611] unlink("./5/cgroup" [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3646] close(11 [pid 3611] umount2("./5/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3646] close(12 [pid 3611] lstat("./5/cgroup.net", [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3646] close(13 [pid 3611] unlink("./5/cgroup.net" [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3646] close(14 [pid 3611] umount2("./5/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3646] close(15 [pid 3611] lstat("./5/cgroup.cpu", [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3646] close(16 [pid 3611] unlink("./5/cgroup.cpu" [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3646] close(17 [pid 3611] getdents64(3, [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3646] close(18 [pid 3611] close(3 [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... close resumed>) = 0 [pid 3646] close(19 [pid 3611] rmdir("./5" [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... rmdir resumed>) = 0 [pid 3646] close(20 [pid 3611] mkdir("./6", 0777 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(27 [pid 3611] <... mkdir resumed>) = 0 [pid 3646] close(21 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(28 [pid 3646] close(22 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... clone resumed>, child_tidptr=0x555555f255d0) = 8 [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] close(29 [pid 3646] close(23 [pid 3643] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] exit_group(0 [pid 3646] close(24 [pid 3643] <... exit_group resumed>) = ? [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3643] +++ exited with 0 +++ [pid 3646] close(25) = -1 EBADF (Bad file descriptor) [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3646] close(26 [pid 3612] restart_syscall(<... resuming interrupted clone ...> [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... restart_syscall resumed>) = 0 [pid 3646] close(27) = -1 EBADF (Bad file descriptor) [pid 3646] close(28 [pid 3612] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3646] close(29 [pid 3612] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3646] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... openat resumed>) = 3 [pid 3646] exit_group(0 [pid 3612] fstat(3, [pid 3646] <... exit_group resumed>) = ? [pid 3612] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3646] +++ exited with 0 +++ [pid 3612] getdents64(3, 0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3612] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] restart_syscall(<... resuming interrupted clone ...> [pid 3612] lstat("./5/binderfs", [pid 3608] <... restart_syscall resumed>) = 0 [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3612] unlink("./5/binderfs" [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3608] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] <... openat resumed>) = 3 [pid 3645] close(9 [pid 3612] umount2("./5/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] fstat(3, [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3607] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3645] close(10 [pid 3612] lstat("./5/cgroup", [pid 3608] <... openat resumed>) = 3 [pid 3607] getdents64(3, [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3608] fstat(3, [pid 3607] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3645] close(11 [pid 3612] unlink("./5/cgroup" [pid 3608] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3607] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3608] getdents64(3, [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3645] close(12 [pid 3612] umount2("./5/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3607] lstat("./4/binderfs", [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3645] close(13 [pid 3612] lstat("./5/cgroup.net", [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] unlink("./4/binderfs" [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] lstat("./5/binderfs", [pid 3607] <... unlink resumed>) = 0 [pid 3645] close(14 [pid 3612] unlink("./5/cgroup.net" [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3607] umount2("./4/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3608] unlink("./5/binderfs" [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3645] close(15 [pid 3612] umount2("./5/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3608] <... unlink resumed>) = 0 [pid 3607] lstat("./4/cgroup", [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3608] umount2("./5/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3645] close(16 [pid 3612] lstat("./5/cgroup.cpu", [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] unlink("./4/cgroup" [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3608] lstat("./5/cgroup", [pid 3607] <... unlink resumed>) = 0 [pid 3645] close(17 [pid 3612] unlink("./5/cgroup.cpu" [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3607] umount2("./4/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3608] unlink("./5/cgroup" [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3645] close(18 [pid 3612] getdents64(3, [pid 3608] <... unlink resumed>) = 0 [pid 3607] lstat("./4/cgroup.net", [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3608] umount2("./5/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3645] close(19 [pid 3612] close(3 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] unlink("./4/cgroup.net" [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... close resumed>) = 0 [pid 3608] lstat("./5/cgroup.net", [pid 3607] <... unlink resumed>) = 0 [pid 3645] close(20 [pid 3612] rmdir("./5" [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3607] umount2("./4/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... rmdir resumed>) = 0 [pid 3608] unlink("./5/cgroup.net" [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3645] close(21 [pid 3612] mkdir("./6", 0777 [pid 3608] <... unlink resumed>) = 0 [pid 3607] lstat("./4/cgroup.cpu", [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... mkdir resumed>) = 0 [pid 3608] umount2("./5/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3645] close(22 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] unlink("./4/cgroup.cpu" [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] lstat("./5/cgroup.cpu", [pid 3607] <... unlink resumed>) = 0 [pid 3645] close(23 [pid 3612] <... clone resumed>, child_tidptr=0x555555f255d0) = 8 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3607] getdents64(3, [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] unlink("./5/cgroup.cpu" [pid 3607] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3645] close(24 [pid 3608] <... unlink resumed>) = 0 [pid 3607] close(3 [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] getdents64(3, [pid 3607] <... close resumed>) = 0 [pid 3645] close(25 [pid 3608] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3607] rmdir("./4" [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] close(3 [pid 3607] <... rmdir resumed>) = 0 [pid 3645] close(26 [pid 3608] <... close resumed>) = 0 [pid 3607] mkdir("./5", 0777 [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] rmdir("./5" [pid 3607] <... mkdir resumed>) = 0 [pid 3645] close(27 [pid 3608] <... rmdir resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3651 attached [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] mkdir("./6", 0777 [pid 3651] chdir("./5" [pid 3645] close(28 [pid 3608] <... mkdir resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555555f255d0) = 7 [pid 3651] <... chdir resumed>) = 0 [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3652 attached [pid 3651] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3645] close(29 [pid 3652] chdir("./6" [pid 3651] <... prctl resumed>) = 0 [pid 3645] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... clone resumed>, child_tidptr=0x555555f255d0) = 8 [pid 3652] <... chdir resumed>) = 0 [pid 3651] setpgid(0, 0 [pid 3645] exit_group(0 [pid 3652] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3651] <... setpgid resumed>) = 0 [pid 3645] <... exit_group resumed>) = ? [pid 3652] <... prctl resumed>) = 0 [pid 3651] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 3645] +++ exited with 0 +++ [pid 3652] setpgid(0, 0 [pid 3651] <... symlink resumed>) = 0 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3652] <... setpgid resumed>) = 0 [pid 3651] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 3610] restart_syscall(<... resuming interrupted clone ...> [pid 3652] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 3651] <... symlink resumed>) = 0 [pid 3610] <... restart_syscall resumed>) = 0 [pid 3652] <... symlink resumed>) = 0 [pid 3651] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 3652] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 3651] <... symlink resumed>) = 0 [pid 3652] <... symlink resumed>) = 0 [pid 3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3610] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3652] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 3651] <... openat resumed>) = 3 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3652] <... symlink resumed>) = 0 [pid 3651] write(3, "1000", 4 [pid 3610] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3651] <... write resumed>) = 4 [pid 3610] <... openat resumed>) = 3 [pid 3652] <... openat resumed>) = 3 [pid 3651] close(3 [pid 3610] fstat(3, [pid 3652] write(3, "1000", 4 [pid 3651] <... close resumed>) = 0 [pid 3610] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3652] <... write resumed>) = 4 [pid 3651] symlink("/dev/binderfs", "./binderfs" [pid 3610] getdents64(3, [pid 3652] close(3 [pid 3651] <... symlink resumed>) = 0 [pid 3610] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3652] <... close resumed>) = 0 [pid 3651] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3610] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3652] symlink("/dev/binderfs", "./binderfs" [pid 3651] <... openat resumed>) = 3 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3652] <... symlink resumed>) = 0 [pid 3651] write(3, "29", 2 [pid 3610] lstat("./5/binderfs", [pid 3652] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3651] <... write resumed>) = 2 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3652] <... openat resumed>) = 3 [pid 3651] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3610] unlink("./5/binderfs" [pid 3652] write(3, "29", 2 [pid 3651] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3610] <... unlink resumed>) = 0 [pid 3652] <... write resumed>) = 2 [pid 3651] close(3 [pid 3610] umount2("./5/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3652] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3651] <... close resumed>) = 0 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3652] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3651] close(4 [pid 3610] lstat("./5/cgroup", [pid 3652] close(3 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3652] <... close resumed>) = 0 [pid 3651] close(5 [pid 3610] unlink("./5/cgroup" [pid 3652] close(4 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... unlink resumed>) = 0 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(6 [pid 3610] umount2("./5/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3652] close(5 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(7 [pid 3610] lstat("./5/cgroup.net", [pid 3652] close(6 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(8 [pid 3610] unlink("./5/cgroup.net" [pid 3652] close(7 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... unlink resumed>) = 0 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(9 [pid 3610] umount2("./5/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3652] close(8 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(10 [pid 3610] lstat("./5/cgroup.cpu", [pid 3652] close(9 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(11 [pid 3610] unlink("./5/cgroup.cpu" [pid 3652] close(10 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... unlink resumed>) = 0 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(12 [pid 3610] getdents64(3, [pid 3652] close(11 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(13 [pid 3610] close(3 [pid 3652] close(12 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... close resumed>) = 0 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(14 [pid 3610] rmdir("./5" [pid 3652] close(13 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... rmdir resumed>) = 0 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(15 [pid 3610] mkdir("./6", 0777 [pid 3652] close(14 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... mkdir resumed>) = 0 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(16 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3653 attached [pid 3652] close(15 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] chdir("./6" [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(17 [pid 3610] <... clone resumed>, child_tidptr=0x555555f255d0) = 8 [pid 3653] <... chdir resumed>) = 0 [pid 3652] close(16 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(18 [pid 3653] <... prctl resumed>) = 0 [pid 3652] close(17 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] setpgid(0, 0 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(19 [pid 3653] <... setpgid resumed>) = 0 [pid 3652] close(18 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(20 [pid 3653] <... symlink resumed>) = 0 [pid 3652] close(19 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(21 [pid 3653] <... symlink resumed>) = 0 [pid 3652] close(20 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(22 [pid 3653] <... symlink resumed>) = 0 [pid 3652] close(21 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(23 [pid 3653] <... openat resumed>) = 3 [pid 3652] close(22 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] write(3, "1000", 4 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(24 [pid 3653] <... write resumed>) = 4 [pid 3652] close(23 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] close(3 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(25 [pid 3653] <... close resumed>) = 0 [pid 3652] close(24 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] symlink("/dev/binderfs", "./binderfs" [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(26 [pid 3653] <... symlink resumed>) = 0 [pid 3652] close(25 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(27 [pid 3653] <... openat resumed>) = 3 [pid 3652] close(26 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] write(3, "29", 2 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(28 [pid 3653] <... write resumed>) = 2 [pid 3652] close(27 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] close(29 [pid 3653] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3652] close(28 [pid 3651] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3653] close(3 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] exit_group(0 [pid 3653] <... close resumed>) = 0 [pid 3652] close(29 [pid 3651] <... exit_group resumed>) = ? [pid 3653] close(4 [pid 3652] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3651] +++ exited with 0 +++ [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3652] exit_group(0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3653] close(5 [pid 3652] <... exit_group resumed>) = ? [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3652] +++ exited with 0 +++ [pid 3653] close(6) = -1 EBADF (Bad file descriptor) [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3653] close(7 [pid 3608] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3653] close(8 [pid 3608] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... openat resumed>) = 3 [pid 3607] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3653] close(9 [pid 3608] fstat(3, [pid 3607] <... openat resumed>) = 3 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3607] fstat(3, [pid 3653] close(10 [pid 3608] getdents64(3, [pid 3607] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3607] getdents64(3, [pid 3653] close(11 [pid 3608] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3653] close(12 [pid 3608] lstat("./6/binderfs", [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3607] lstat("./5/binderfs", [pid 3653] close(13 [pid 3608] unlink("./6/binderfs" [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... unlink resumed>) = 0 [pid 3607] unlink("./5/binderfs" [pid 3653] close(14 [pid 3608] umount2("./6/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 3649 attached [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] umount2("./5/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3653] close(15 [pid 3649] chdir("./6" [pid 3608] lstat("./6/cgroup", [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... chdir resumed>) = 0 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3607] lstat("./5/cgroup", [pid 3653] close(16 [pid 3649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3608] unlink("./6/cgroup" [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... prctl resumed>) = 0 [pid 3608] <... unlink resumed>) = 0 [pid 3607] unlink("./5/cgroup" [pid 3653] close(17 [pid 3649] setpgid(0, 0 [pid 3608] umount2("./6/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] <... unlink resumed>) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... setpgid resumed>) = 0 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] umount2("./5/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3653] close(18 [pid 3649] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 3608] lstat("./6/cgroup.net", [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... symlink resumed>) = 0 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3607] lstat("./5/cgroup.net", [pid 3653] close(19 [pid 3649] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 3608] unlink("./6/cgroup.net" [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... symlink resumed>) = 0 [pid 3608] <... unlink resumed>) = 0 [pid 3607] unlink("./5/cgroup.net" [pid 3653] close(20 [pid 3649] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 3608] umount2("./6/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3607] <... unlink resumed>) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... symlink resumed>) = 0 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3607] umount2("./5/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3653] close(21 [pid 3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3608] lstat("./6/cgroup.cpu", [pid 3607] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... openat resumed>) = 3 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3607] lstat("./5/cgroup.cpu", [pid 3653] close(22 [pid 3649] write(3, "1000", 4 [pid 3608] unlink("./6/cgroup.cpu" [pid 3607] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... write resumed>) = 4 [pid 3608] <... unlink resumed>) = 0 [pid 3607] unlink("./5/cgroup.cpu" [pid 3653] close(23 [pid 3649] close(3 [pid 3608] getdents64(3, [pid 3607] <... unlink resumed>) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = 0 [pid 3608] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3607] getdents64(3, [pid 3653] close(24 [pid 3649] symlink("/dev/binderfs", "./binderfs" [pid 3608] close(3 [pid 3607] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... symlink resumed>) = 0 [pid 3608] <... close resumed>) = 0 [pid 3607] close(3 [pid 3653] close(25 [pid 3649] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3608] rmdir("./6" [pid 3607] <... close resumed>) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... openat resumed>) = 3 [pid 3608] <... rmdir resumed>) = 0 [pid 3607] rmdir("./5" [pid 3653] close(26 [pid 3649] write(3, "29", 2 [pid 3608] mkdir("./7", 0777 [pid 3607] <... rmdir resumed>) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... write resumed>) = 2 [pid 3608] <... mkdir resumed>) = 0 [pid 3607] mkdir("./6", 0777 [pid 3653] close(27 [pid 3649] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 3654 attached [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3654] chdir("./7" [pid 3653] close(28 [pid 3649] close(3 [pid 3608] <... clone resumed>, child_tidptr=0x555555f255d0) = 9 [pid 3654] <... chdir resumed>) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555555f255d0) = 8 [pid 3654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3653] close(29 [pid 3649] close(4 [pid 3654] <... prctl resumed>) = 0 [pid 3653] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3654] setpgid(0, 0 [pid 3653] exit_group(0 [pid 3649] close(5 [pid 3654] <... setpgid resumed>) = 0 [pid 3653] <... exit_group resumed>) = ? [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3654] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 3653] +++ exited with 0 +++ [pid 3649] close(6 [pid 3654] <... symlink resumed>) = 0 [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3654] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 3649] close(7 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3654] <... symlink resumed>) = 0 [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3654] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 3649] close(8 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3654] <... symlink resumed>) = 0 [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3649] close(9 [pid 3610] <... openat resumed>) = 3 [pid 3654] <... openat resumed>) = 3 [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] fstat(3, [pid 3654] write(3, "1000", 4 [pid 3649] close(10 [pid 3610] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3654] <... write resumed>) = 4 [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] getdents64(3, [pid 3654] close(3 [pid 3649] close(11 [pid 3610] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3654] <... close resumed>) = 0 [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3654] symlink("/dev/binderfs", "./binderfs" [pid 3649] close(12 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3654] <... symlink resumed>) = 0 [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] lstat("./6/binderfs", [pid 3654] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3649] close(13 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3654] <... openat resumed>) = 3 [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] unlink("./6/binderfs" [pid 3654] write(3, "29", 2 [pid 3649] close(14 [pid 3610] <... unlink resumed>) = 0 [pid 3654] <... write resumed>) = 2 [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] umount2("./6/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3654] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3649] close(15 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3654] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] lstat("./6/cgroup", [pid 3654] close(3 [pid 3649] close(16 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3654] <... close resumed>) = 0 [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] unlink("./6/cgroup" [pid 3654] close(4 [pid 3649] close(17 [pid 3610] <... unlink resumed>) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] umount2("./6/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3654] close(5 [pid 3649] close(18 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] lstat("./6/cgroup.net", [pid 3654] close(6 [pid 3649] close(19 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] unlink("./6/cgroup.net" [pid 3654] close(7 [pid 3649] close(20 [pid 3610] <... unlink resumed>) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] umount2("./6/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3654] close(8 [pid 3649] close(21 [pid 3610] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] lstat("./6/cgroup.cpu", [pid 3654] close(9 [pid 3649] close(22 [pid 3610] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] unlink("./6/cgroup.cpu" [pid 3654] close(10 [pid 3649] close(23 [pid 3610] <... unlink resumed>) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] getdents64(3, [pid 3654] close(11 [pid 3649] close(24 [pid 3610] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] close(3 [pid 3654] close(12 [pid 3649] close(25 [pid 3610] <... close resumed>) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] rmdir("./6" [pid 3654] close(13 [pid 3649] close(26 [pid 3610] <... rmdir resumed>) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] mkdir("./7", 0777./strace-static-x86_64: Process 3650 attached [pid 3654] close(14 [pid 3649] close(27 [pid 3610] <... mkdir resumed>) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] chdir("./6" [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3654] close(15 [pid 3650] <... chdir resumed>) = 0 [pid 3649] close(28 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3610] <... clone resumed>, child_tidptr=0x555555f255d0) = 9 [pid 3654] close(16 [pid 3650] <... prctl resumed>) = 0 [pid 3649] close(29 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] setpgid(0, 0 [pid 3649] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3654] close(17 [pid 3650] <... setpgid resumed>) = 0 [pid 3649] exit_group(0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 3649] <... exit_group resumed>) = ? [pid 3654] close(18 [pid 3650] <... symlink resumed>) = 0 [pid 3649] +++ exited with 0 +++ [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 3654] close(19 [pid 3650] <... symlink resumed>) = 0 [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 3611] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3654] close(20 [pid 3650] <... symlink resumed>) = 0 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3611] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3654] close(21 [pid 3650] <... openat resumed>) = 3 [pid 3611] <... openat resumed>) = 3 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] write(3, "1000", 4 [pid 3611] fstat(3, [pid 3654] close(22 [pid 3650] <... write resumed>) = 4 [pid 3611] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] close(3 [pid 3611] getdents64(3, [pid 3654] close(23 [pid 3650] <... close resumed>) = 0 [pid 3611] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] symlink("/dev/binderfs", "./binderfs" [pid 3611] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3654] close(24 [pid 3650] <... symlink resumed>) = 0 [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3611] lstat("./6/binderfs", [pid 3654] close(25 [pid 3650] <... openat resumed>) = 3 [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] write(3, "29", 2 [pid 3611] unlink("./6/binderfs" [pid 3654] close(26 [pid 3650] <... write resumed>) = 2 [pid 3611] <... unlink resumed>) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3611] umount2("./6/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3654] close(27 [pid 3650] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] close(3 [pid 3611] lstat("./6/cgroup", [pid 3654] close(28 [pid 3650] <... close resumed>) = 0 [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] close(4 [pid 3611] unlink("./6/cgroup" [pid 3654] close(29 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3654] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] close(5 [pid 3611] umount2("./6/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3654] exit_group(0 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3654] <... exit_group resumed>) = ? [pid 3650] close(6 [pid 3611] lstat("./6/cgroup.net", [pid 3654] +++ exited with 0 +++ [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3650] close(7 [pid 3611] unlink("./6/cgroup.net" [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3650] close(8 [pid 3611] umount2("./6/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3650] close(9 [pid 3611] lstat("./6/cgroup.cpu", ./strace-static-x86_64: Process 3655 attached [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3655] chdir("./6" [pid 3650] close(10 [pid 3611] unlink("./6/cgroup.cpu" [pid 3655] <... chdir resumed>) = 0 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... unlink resumed>) = 0 [pid 3608] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3650] close(11 [pid 3611] getdents64(3, [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3655] <... prctl resumed>) = 0 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3608] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3655] setpgid(0, 0 [pid 3650] close(12 [pid 3611] close(3 [pid 3608] <... openat resumed>) = 3 [pid 3655] <... setpgid resumed>) = 0 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... close resumed>) = 0 [pid 3608] fstat(3, [pid 3655] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 3650] close(13 [pid 3611] rmdir("./6" [pid 3608] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3655] <... symlink resumed>) = 0 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... rmdir resumed>) = 0 [pid 3608] getdents64(3, [pid 3655] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 3650] close(14 [pid 3611] mkdir("./7", 0777 [pid 3608] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3655] <... symlink resumed>) = 0 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3611] <... mkdir resumed>) = 0 [pid 3608] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3655] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 3650] close(15 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3655] <... symlink resumed>) = 0 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] lstat("./7/binderfs", [pid 3655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3650] close(16 [pid 3611] <... clone resumed>, child_tidptr=0x555555f255d0) = 9 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3655] <... openat resumed>) = 3 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] unlink("./7/binderfs" [pid 3655] write(3, "1000", 4 [pid 3650] close(17 [pid 3608] <... unlink resumed>) = 0 [pid 3655] <... write resumed>) = 4 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] umount2("./7/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3655] close(3 [pid 3650] close(18 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3655] <... close resumed>) = 0 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] lstat("./7/cgroup", [pid 3655] symlink("/dev/binderfs", "./binderfs" [pid 3650] close(19 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3655] <... symlink resumed>) = 0 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] unlink("./7/cgroup" [pid 3655] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3650] close(20 [pid 3608] <... unlink resumed>) = 0 [pid 3655] <... openat resumed>) = 3 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] umount2("./7/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3655] write(3, "29", 2 [pid 3650] close(21 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3655] <... write resumed>) = 2 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] lstat("./7/cgroup.net", [pid 3655] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3650] close(22 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3655] <... mount resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] unlink("./7/cgroup.net" [pid 3655] close(3 [pid 3650] close(23 [pid 3608] <... unlink resumed>) = 0 [pid 3655] <... close resumed>) = 0 [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] umount2("./7/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3655] close(4 [pid 3650] close(24 [pid 3608] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] lstat("./7/cgroup.cpu", [pid 3655] close(5 [pid 3650] close(25 [pid 3608] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] unlink("./7/cgroup.cpu" [pid 3655] close(6 [pid 3650] close(26 [pid 3608] <... unlink resumed>) = 0 [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] getdents64(3, [pid 3655] close(7 [pid 3650] close(27 [pid 3608] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] close(3./strace-static-x86_64: Process 3656 attached [pid 3655] close(8 [pid 3650] close(28 [pid 3608] <... close resumed>) = 0 [pid 3656] chdir("./7" [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] rmdir("./7" [pid 3656] <... chdir resumed>) = 0 [pid 3655] close(9 [pid 3650] close(29 [pid 3608] <... rmdir resumed>) = 0 [pid 3656] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3608] mkdir("./8", 0777 [pid 3656] <... prctl resumed>) = 0 [pid 3655] close(10 [pid 3650] exit_group(0 [pid 3608] <... mkdir resumed>) = 0 [pid 3656] setpgid(0, 0 [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3650] <... exit_group resumed>) = ? [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3656] <... setpgid resumed>) = 0 [pid 3655] close(11 [pid 3650] +++ exited with 0 +++ [pid 3656] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3608] <... clone resumed>, child_tidptr=0x555555f255d0) = 10 [pid 3656] <... symlink resumed>) = 0 [pid 3655] close(12 [pid 3656] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3656] <... symlink resumed>) = 0 [pid 3655] close(13 [pid 3612] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3656] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3656] <... symlink resumed>) = 0 [pid 3655] close(14 [pid 3612] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 3656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... openat resumed>) = 3 [pid 3656] <... openat resumed>) = 3 [pid 3655] close(15 [pid 3612] fstat(3, [pid 3656] write(3, "1000", 4 [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3656] <... write resumed>) = 4 [pid 3655] close(16 [pid 3612] getdents64(3, [pid 3656] close(3 [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... getdents64 resumed>0x555555f26620 /* 6 entries */, 32768) = 176 [pid 3656] <... close resumed>) = 0 [pid 3655] close(17 [pid 3612] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3656] symlink("/dev/binderfs", "./binderfs" [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3656] <... symlink resumed>) = 0 [pid 3655] close(18 [pid 3612] lstat("./6/binderfs", [pid 3656] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3656] <... openat resumed>) = 3 [pid 3655] close(19 [pid 3612] unlink("./6/binderfs" [pid 3656] write(3, "29", 2 [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3656] <... write resumed>) = 2 [pid 3655] close(20 [pid 3612] umount2("./6/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3656] mount(NULL, "./binderfs", "binder", 0, NULL [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3655] close(21 [pid 3612] lstat("./6/cgroup", [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3655] close(22 [pid 3612] unlink("./6/cgroup" [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3655] close(23 [pid 3612] umount2("./6/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3655] close(24 [pid 3612] lstat("./6/cgroup.net", [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3655] close(25 [pid 3612] unlink("./6/cgroup.net" [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3655] close(26 [pid 3612] umount2("./6/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 3656] <... mount resumed>) = 0 [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 3655] close(27 [pid 3612] lstat("./6/cgroup.cpu", [pid 3656] close(3 [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3656] <... close resumed>) = 0 [pid 3655] close(28 [pid 3612] unlink("./6/cgroup.cpu" [pid 3656] close(4 [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... unlink resumed>) = 0 [pid 3656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3655] close(29 [pid 3612] getdents64(3, [pid 3656] close(5 [pid 3655] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] <... getdents64 resumed>0x555555f26620 /* 0 entries */, 32768) = 0 [pid 3656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3655] exit_group(0 [pid 3612] close(3 [pid 3656] close(6 [pid 3655] <... exit_group resumed>) = ? [pid 3612] <... close resumed>) = 0 [pid 3656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3655] +++ exited with 0 +++ [pid 3612] rmdir("./6" [ 51.953327][ T3647] ffff888147889c00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 51.961396][ T3647] ================================================================== [ 51.975590][ T3647] Kernel panic - not syncing: panic_on_warn set ... [ 51.982203][ T3647] CPU: 0 PID: 3647 Comm: syz-executor232 Not tainted 5.19.0-rc4-next-20220628-syzkaller #0 [ 51.992194][ T3647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 52.002262][ T3647] Call Trace: [ 52.005552][ T3647] [ 52.008494][ T3647] dump_stack_lvl+0xcd/0x134 [ 52.013124][ T3647] panic+0x2d7/0x636 [ 52.017047][ T3647] ? panic_print_sys_info.part.0+0x10b/0x10b [ 52.023060][ T3647] ? preempt_schedule_common+0x59/0xc0 [ 52.028547][ T3647] ? preempt_schedule_thunk+0x16/0x18 [ 52.033952][ T3647] ? kfree+0xe2/0x4d0 [ 52.037958][ T3647] ? kfree+0xe2/0x4d0 [ 52.041961][ T3647] end_report.part.0+0x3f/0x7c [ 52.046756][ T3647] kasan_report_invalid_free.cold+0x8/0xd [ 52.052507][ T3647] ? __phys_addr+0x20/0x140 [ 52.057045][ T3647] ? kfree+0xe2/0x4d0 [ 52.061051][ T3647] ____kasan_slab_free+0x18b/0x1c0 [ 52.066183][ T3647] slab_free_freelist_hook+0x8b/0x1c0 [ 52.071587][ T3647] ? kfree_const+0x51/0x60 [ 52.076025][ T3647] kfree+0xe2/0x4d0 [ 52.079860][ T3647] kfree_const+0x51/0x60 [ 52.084108][ T3647] free_prealloced_shrinker+0x32/0x160 [ 52.089566][ T3647] destroy_unused_super.part.0+0x106/0x170 [ 52.095373][ T3647] alloc_super+0x8bd/0xaa0 [ 52.099790][ T3647] sget_fc+0x13e/0x7c0 [ 52.103858][ T3647] ? set_anon_super+0xb0/0xb0 [ 52.108538][ T3647] ? binderfs_create_file+0x2e0/0x2e0 [ 52.113937][ T3647] get_tree_nodev+0x24/0x1d0 [ 52.118530][ T3647] vfs_get_tree+0x89/0x2f0 [ 52.122948][ T3647] path_mount+0x1320/0x1fa0 [ 52.127463][ T3647] ? putname+0xfe/0x140 [ 52.131617][ T3647] ? kmem_cache_free+0xeb/0x5b0 [ 52.136459][ T3647] ? finish_automount+0xaf0/0xaf0 [ 52.141481][ T3647] ? putname+0xfe/0x140 [ 52.145646][ T3647] __x64_sys_mount+0x27f/0x300 [ 52.150410][ T3647] ? copy_mnt_ns+0xae0/0xae0 [ 52.154997][ T3647] ? lockdep_hardirqs_on+0x79/0x100 [ 52.160199][ T3647] ? _raw_spin_unlock_irq+0x2a/0x40 [ 52.165397][ T3647] ? ptrace_notify+0xfa/0x140 [ 52.170071][ T3647] do_syscall_64+0x35/0xb0 [ 52.174484][ T3647] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 52.180393][ T3647] RIP: 0033:0x7f84280f4ef9 [ 52.184802][ T3647] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [pid 3656] close(7 [pid 3612] <... rmdir resumed>) = 0 [pid 3656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] mkdir("./7", 0777 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3656] close(8 [pid 3612] <... mkdir resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3656] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 3659 attached [pid 3656] close(9 [ 52.204405][ T3647] RSP: 002b:00007ffc55338338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 52.212814][ T3647] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f84280f4ef9 [ 52.220778][ T3647] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 52.228757][ T3647] RBP: 00007ffc55338360 R08: 0000000000000000 R09: 00007ffc55338370 [ 52.236723][ T3647] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 52.244684][ T3647] R13: 00007ffc55338380 R14: 00007ffc553383c0 R15: 0000000000000006 [ 52.252742][ T3647] [ 52.255905][ T3647] Kernel Offset: disabled [ 52.260228][ T3647] Rebooting in 86400 seconds..