./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor597647523 <...> Warning: Permanently added '10.128.0.236' (ED25519) to the list of known hosts. execve("./syz-executor597647523", ["./syz-executor597647523"], 0x7ffc7c34aff0 /* 10 vars */) = 0 brk(NULL) = 0x555555843000 brk(0x555555843d40) = 0x555555843d40 arch_prctl(ARCH_SET_FS, 0x5555558433c0) = 0 set_tid_address(0x555555843690) = 5019 set_robust_list(0x5555558436a0, 24) = 0 rseq(0x555555843ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor597647523", 4096) = 27 getrandom("\xb4\x72\x3f\xd4\x91\x41\x4a\x71", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555843d40 brk(0x555555864d40) = 0x555555864d40 brk(0x555555865000) = 0x555555865000 mprotect(0x7fb09f385000, 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, "+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 [ 46.153090][ T5019] 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") = 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, "memory") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) [ 46.280506][ T5019] cgroup: Unknown subsys name 'rlimit' mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb,memory") = 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5020 attached , child_tidptr=0x555555843690) = 5020 [pid 5019] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5020] set_robust_list(0x5555558436a0, 24./strace-static-x86_64: Process 5021 attached ) = 0 [pid 5019] <... clone resumed>, child_tidptr=0x555555843690) = 5021 [pid 5019] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5021] set_robust_list(0x5555558436a0, 24 [pid 5020] mkdir("./syzkaller.xvfzsS", 0700./strace-static-x86_64: Process 5022 attached [pid 5019] <... clone resumed>, child_tidptr=0x555555843690) = 5022 [pid 5019] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5022] set_robust_list(0x5555558436a0, 24 [pid 5021] <... set_robust_list resumed>) = 0 [pid 5020] <... mkdir resumed>) = 0 [pid 5019] <... clone resumed>, child_tidptr=0x555555843690) = 5023 [pid 5022] <... set_robust_list resumed>) = 0 [pid 5019] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5024 attached ./strace-static-x86_64: Process 5023 attached [pid 5022] mkdir("./syzkaller.6ixLOs", 0700 [pid 5021] mkdir("./syzkaller.HVXgWY", 0700 [pid 5020] chmod("./syzkaller.xvfzsS", 0777 [pid 5019] <... clone resumed>, child_tidptr=0x555555843690) = 5024 [pid 5019] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5022] <... mkdir resumed>) = 0 [pid 5021] <... mkdir resumed>) = 0 [pid 5020] <... chmod resumed>) = 0 [pid 5019] <... clone resumed>, child_tidptr=0x555555843690) = 5025 [pid 5022] chmod("./syzkaller.6ixLOs", 0777 [pid 5021] chmod("./syzkaller.HVXgWY", 0777 [pid 5020] chdir("./syzkaller.xvfzsS" [pid 5022] <... chmod resumed>) = 0 [pid 5022] chdir("./syzkaller.6ixLOs") = 0 [pid 5022] unshare(CLONE_NEWPID [pid 5024] set_robust_list(0x5555558436a0, 24 [pid 5023] set_robust_list(0x5555558436a0, 24 [pid 5022] <... unshare resumed>) = 0 [pid 5021] <... chmod resumed>) = 0 [pid 5020] <... chdir resumed>) = 0 [pid 5022] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5021] chdir("./syzkaller.HVXgWY" [pid 5020] unshare(CLONE_NEWPID./strace-static-x86_64: Process 5025 attached [pid 5024] <... set_robust_list resumed>) = 0 [pid 5023] <... set_robust_list resumed>) = 0 [pid 5021] <... chdir resumed>) = 0 [pid 5020] <... unshare resumed>) = 0 ./strace-static-x86_64: Process 5026 attached [pid 5025] set_robust_list(0x5555558436a0, 24 [pid 5026] set_robust_list(0x5555558436a0, 24 [pid 5022] <... clone resumed>, child_tidptr=0x555555843690) = 5026 [pid 5026] <... set_robust_list resumed>) = 0 [pid 5026] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5025] <... set_robust_list resumed>) = 0 [pid 5024] mkdir("./syzkaller.meBD5T", 0700 [pid 5023] mkdir("./syzkaller.XQ6aFE", 0700 [pid 5021] unshare(CLONE_NEWPID [pid 5020] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5026] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5026] setsid() = 1 [pid 5026] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5023] <... mkdir resumed>) = 0 [pid 5021] <... unshare resumed>) = 0 [pid 5026] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5026] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5026] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5026] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5021] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5023] chmod("./syzkaller.XQ6aFE", 0777 [pid 5026] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5026] unshare(CLONE_NEWNS) = 0 [pid 5020] <... clone resumed>, child_tidptr=0x555555843690) = 5027 [pid 5023] <... chmod resumed>) = 0 [pid 5021] <... clone resumed>, child_tidptr=0x555555843690) = 5028 [pid 5026] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5023] chdir("./syzkaller.XQ6aFE" [pid 5026] <... mount resumed>) = 0 [pid 5023] <... chdir resumed>) = 0 [pid 5026] unshare(CLONE_NEWIPC [pid 5023] unshare(CLONE_NEWPID [pid 5026] <... unshare resumed>) = 0 [pid 5024] <... mkdir resumed>) = 0 [pid 5023] <... unshare resumed>) = 0 [pid 5026] unshare(CLONE_NEWCGROUP [pid 5023] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5027 attached [pid 5026] <... unshare resumed>) = 0 [pid 5027] set_robust_list(0x5555558436a0, 24 [pid 5026] unshare(CLONE_NEWUTS [pid 5027] <... set_robust_list resumed>) = 0 [pid 5026] <... unshare resumed>) = 0 [pid 5027] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5026] unshare(CLONE_SYSVSEM./strace-static-x86_64: Process 5028 attached [pid 5027] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5026] <... unshare resumed>) = 0 [pid 5025] mkdir("./syzkaller.iW7kIG", 0700 [pid 5024] chmod("./syzkaller.meBD5T", 0777 [pid 5023] <... clone resumed>, child_tidptr=0x555555843690) = 5029 [pid 5028] set_robust_list(0x5555558436a0, 24 [pid 5027] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5024] <... chmod resumed>) = 0 [pid 5028] <... set_robust_list resumed>) = 0 [pid 5027] <... prctl resumed>) = 0 [pid 5026] <... openat resumed>) = 3 [pid 5024] chdir("./syzkaller.meBD5T" [pid 5028] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5027] setsid( [pid 5026] write(3, "16777216", 8 [pid 5024] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5029 attached [pid 5028] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5027] <... setsid resumed>) = 1 [pid 5026] <... write resumed>) = 8 [pid 5025] <... mkdir resumed>) = 0 [pid 5028] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5027] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5026] close(3 [pid 5028] <... prctl resumed>) = 0 [pid 5027] <... prlimit64 resumed>NULL) = 0 [pid 5026] <... close resumed>) = 0 [pid 5028] setsid( [pid 5027] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5024] unshare(CLONE_NEWPID [pid 5029] set_robust_list(0x5555558436a0, 24 [pid 5028] <... setsid resumed>) = 1 [pid 5027] <... prlimit64 resumed>NULL) = 0 [pid 5026] <... openat resumed>) = 3 [pid 5025] chmod("./syzkaller.iW7kIG", 0777 [pid 5028] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5027] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5026] write(3, "536870912", 9 [pid 5028] <... prlimit64 resumed>NULL) = 0 [pid 5027] <... prlimit64 resumed>NULL) = 0 [pid 5026] <... write resumed>) = 9 [pid 5028] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5027] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5026] close(3 [pid 5028] <... prlimit64 resumed>NULL) = 0 [pid 5027] <... prlimit64 resumed>NULL) = 0 [pid 5026] <... close resumed>) = 0 [pid 5024] <... unshare resumed>) = 0 [pid 5028] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5027] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5025] <... chmod resumed>) = 0 [pid 5029] <... set_robust_list resumed>) = 0 [pid 5028] <... prlimit64 resumed>NULL) = 0 [pid 5027] <... prlimit64 resumed>NULL) = 0 [pid 5024] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5029] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5028] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5027] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5026] <... openat resumed>) = 3 [pid 5025] chdir("./syzkaller.iW7kIG"./strace-static-x86_64: Process 5030 attached [pid 5028] <... prlimit64 resumed>NULL) = 0 [pid 5027] <... prlimit64 resumed>NULL) = 0 [pid 5026] write(3, "1024", 4 [pid 5030] set_robust_list(0x5555558436a0, 24 [pid 5028] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5027] unshare(CLONE_NEWNS [pid 5026] <... write resumed>) = 4 [pid 5025] <... chdir resumed>) = 0 [pid 5024] <... clone resumed>, child_tidptr=0x555555843690) = 5030 [pid 5030] <... set_robust_list resumed>) = 0 [pid 5028] <... prlimit64 resumed>NULL) = 0 [pid 5030] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5028] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5027] <... unshare resumed>) = 0 [pid 5026] close(3 [pid 5025] unshare(CLONE_NEWPID [pid 5028] <... prlimit64 resumed>NULL) = 0 [pid 5027] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5028] unshare(CLONE_NEWNS [pid 5026] <... close resumed>) = 0 [pid 5025] <... unshare resumed>) = 0 [pid 5027] <... mount resumed>) = 0 [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5030] setsid() = 1 [pid 5030] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5028] <... unshare resumed>) = 0 [pid 5030] <... prlimit64 resumed>NULL) = 0 [pid 5030] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5030] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5028] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5027] unshare(CLONE_NEWIPC [pid 5026] <... openat resumed>) = 3 [pid 5025] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5030] <... prlimit64 resumed>NULL) = 0 [pid 5029] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5028] <... mount resumed>) = 0 [pid 5026] write(3, "8192", 4 [pid 5030] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5030] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5030] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5027] <... unshare resumed>) = 0 [pid 5026] <... write resumed>) = 4 [pid 5030] <... prlimit64 resumed>NULL) = 0 [pid 5028] unshare(CLONE_NEWIPC [pid 5030] unshare(CLONE_NEWNS) = 0 [pid 5026] close(3 [pid 5030] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5030] unshare(CLONE_NEWIPC [pid 5028] <... unshare resumed>) = 0 [pid 5027] unshare(CLONE_NEWCGROUP [pid 5026] <... close resumed>) = 0 [pid 5025] <... clone resumed>, child_tidptr=0x555555843690) = 5031 [pid 5030] <... unshare resumed>) = 0 [pid 5029] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5030] unshare(CLONE_NEWCGROUP [pid 5028] unshare(CLONE_NEWCGROUP [pid 5027] <... unshare resumed>) = 0 [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5030] <... unshare resumed>) = 0 [pid 5029] <... prctl resumed>) = 0 [pid 5028] <... unshare resumed>) = 0 [pid 5027] unshare(CLONE_NEWUTS [pid 5030] unshare(CLONE_NEWUTS) = 0 [pid 5028] unshare(CLONE_NEWUTS [pid 5027] <... unshare resumed>) = 0 [pid 5029] setsid( [pid 5026] <... openat resumed>) = 3 [pid 5030] unshare(CLONE_SYSVSEM [pid 5029] <... setsid resumed>) = 1 [pid 5028] <... unshare resumed>) = 0 [pid 5027] unshare(CLONE_SYSVSEM [pid 5026] write(3, "1024", 4./strace-static-x86_64: Process 5031 attached [pid 5030] <... unshare resumed>) = 0 [pid 5029] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5028] unshare(CLONE_SYSVSEM [pid 5027] <... unshare resumed>) = 0 [pid 5026] <... write resumed>) = 4 [pid 5031] set_robust_list(0x5555558436a0, 24 [pid 5030] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5029] <... prlimit64 resumed>NULL) = 0 [pid 5028] <... unshare resumed>) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5026] close(3 [pid 5031] <... set_robust_list resumed>) = 0 [pid 5030] <... openat resumed>) = 3 [pid 5029] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5028] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5027] <... openat resumed>) = 3 [pid 5026] <... close resumed>) = 0 [pid 5031] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5030] write(3, "16777216", 8 [pid 5029] <... prlimit64 resumed>NULL) = 0 [pid 5028] <... openat resumed>) = 3 [pid 5027] write(3, "16777216", 8 [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5031] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5030] <... write resumed>) = 8 [pid 5029] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5028] write(3, "16777216", 8 [pid 5027] <... write resumed>) = 8 [pid 5026] <... openat resumed>) = 3 [pid 5031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5030] close(3 [pid 5029] <... prlimit64 resumed>NULL) = 0 [pid 5028] <... write resumed>) = 8 [pid 5027] close(3 [pid 5026] write(3, "1024", 4 [pid 5031] <... prctl resumed>) = 0 [pid 5030] <... close resumed>) = 0 [pid 5029] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5028] close(3 [pid 5027] <... close resumed>) = 0 [pid 5026] <... write resumed>) = 4 [pid 5031] setsid( [pid 5030] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5029] <... prlimit64 resumed>NULL) = 0 [pid 5028] <... close resumed>) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5026] close(3 [pid 5031] <... setsid resumed>) = 1 [pid 5030] <... openat resumed>) = 3 [pid 5029] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5028] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5027] <... openat resumed>) = 3 [pid 5026] <... close resumed>) = 0 [pid 5031] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5030] write(3, "536870912", 9 [pid 5029] <... prlimit64 resumed>NULL) = 0 [pid 5028] <... openat resumed>) = 3 [pid 5027] write(3, "536870912", 9 [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5031] <... prlimit64 resumed>NULL) = 0 [pid 5030] <... write resumed>) = 9 [pid 5029] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5028] write(3, "536870912", 9 [pid 5027] <... write resumed>) = 9 [pid 5031] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5030] close(3 [pid 5029] <... prlimit64 resumed>NULL) = 0 [pid 5028] <... write resumed>) = 9 [pid 5027] close(3 [pid 5026] <... openat resumed>) = 3 [pid 5031] <... prlimit64 resumed>NULL) = 0 [pid 5030] <... close resumed>) = 0 [pid 5031] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5030] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5029] unshare(CLONE_NEWNS [pid 5028] close(3 [pid 5027] <... close resumed>) = 0 [pid 5026] write(3, "1024 1048576 500 1024", 21 [pid 5031] <... prlimit64 resumed>NULL) = 0 [pid 5030] <... openat resumed>) = 3 [pid 5031] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5030] write(3, "1024", 4 [pid 5031] <... prlimit64 resumed>NULL) = 0 [pid 5030] <... write resumed>) = 4 [pid 5031] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5030] close(3 [pid 5029] <... unshare resumed>) = 0 [pid 5028] <... close resumed>) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5026] <... write resumed>) = 21 [pid 5031] <... prlimit64 resumed>NULL) = 0 [pid 5030] <... close resumed>) = 0 [pid 5029] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5031] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5030] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5028] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5031] <... prlimit64 resumed>NULL) = 0 [pid 5030] <... openat resumed>) = 3 [pid 5029] <... mount resumed>) = 0 [pid 5027] <... openat resumed>) = 3 [pid 5026] close(3 [pid 5031] unshare(CLONE_NEWNS [pid 5030] write(3, "8192", 4 [pid 5029] unshare(CLONE_NEWIPC [pid 5028] <... openat resumed>) = 3 [pid 5027] write(3, "1024", 4 [pid 5026] <... close resumed>) = 0 [pid 5031] <... unshare resumed>) = 0 [pid 5030] <... write resumed>) = 4 [pid 5031] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5030] close(3 [pid 5031] <... mount resumed>) = 0 [pid 5030] <... close resumed>) = 0 [pid 5029] <... unshare resumed>) = 0 [pid 5028] write(3, "1024", 4 [pid 5027] <... write resumed>) = 4 [pid 5026] getpid( [pid 5031] unshare(CLONE_NEWIPC [pid 5030] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5029] unshare(CLONE_NEWCGROUP [pid 5028] <... write resumed>) = 4 [pid 5027] close(3 [pid 5026] <... getpid resumed>) = 1 [pid 5031] <... unshare resumed>) = 0 [pid 5030] <... openat resumed>) = 3 [pid 5029] <... unshare resumed>) = 0 [pid 5028] close(3 [pid 5027] <... close resumed>) = 0 [pid 5026] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 5031] unshare(CLONE_NEWCGROUP [pid 5030] write(3, "1024", 4 [pid 5029] unshare(CLONE_NEWUTS [pid 5028] <... close resumed>) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5031] <... unshare resumed>) = 0 [pid 5030] <... write resumed>) = 4 [pid 5029] <... unshare resumed>) = 0 [pid 5028] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5026] <... capget resumed>{effective=1< [pid 5030] close(3 [pid 5029] unshare(CLONE_SYSVSEM [pid 5027] <... openat resumed>) = 3 [pid 5031] <... unshare resumed>) = 0 [pid 5030] <... close resumed>) = 0 [pid 5029] <... unshare resumed>) = 0 [pid 5028] <... openat resumed>) = 3 [pid 5027] write(3, "8192", 4 [pid 5026] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5031] unshare(CLONE_SYSVSEM [pid 5030] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5031] <... unshare resumed>) = 0 [pid 5030] <... openat resumed>) = 3 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5028] write(3, "8192", 4 [pid 5027] <... write resumed>) = 4 [pid 5026] <... capset resumed>) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5030] write(3, "1024", 4 [pid 5031] <... openat resumed>) = 3 [pid 5030] <... write resumed>) = 4 [pid 5029] <... openat resumed>) = 3 [pid 5028] <... write resumed>) = 4 [pid 5027] close(3 [pid 5026] unshare(CLONE_NEWNET [pid 5031] write(3, "16777216", 8 [pid 5030] close(3 [pid 5029] write(3, "16777216", 8 [pid 5028] close(3 [pid 5027] <... close resumed>) = 0 [pid 5031] <... write resumed>) = 8 [pid 5030] <... close resumed>) = 0 [pid 5031] close(3 [pid 5030] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5031] <... close resumed>) = 0 [pid 5030] <... openat resumed>) = 3 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5030] write(3, "1024 1048576 500 1024", 21 [pid 5031] <... openat resumed>) = 3 [pid 5030] <... write resumed>) = 21 [pid 5031] write(3, "536870912", 9 [pid 5030] close(3 [pid 5031] <... write resumed>) = 9 [pid 5030] <... close resumed>) = 0 [pid 5031] close(3 [pid 5030] getpid( [pid 5031] <... close resumed>) = 0 [pid 5030] <... getpid resumed>) = 1 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5030] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 5031] <... openat resumed>) = 3 [pid 5030] <... capget resumed>{effective=1< [pid 5030] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5031] <... write resumed>) = 4 [pid 5030] <... capset resumed>) = 0 [pid 5031] close(3 [pid 5030] unshare(CLONE_NEWNET [pid 5031] <... close resumed>) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "8192", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5031] close(3) = 0 [pid 5031] getpid() = 1 [pid 5031] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5029] <... write resumed>) = 8 [pid 5028] <... close resumed>) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5029] close(3) = 0 [pid 5028] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5027] <... openat resumed>) = 3 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5028] <... openat resumed>) = 3 [pid 5027] write(3, "1024", 4 [pid 5029] write(3, "536870912", 9 [pid 5028] write(3, "1024", 4 [pid 5027] <... write resumed>) = 4 [pid 5029] <... write resumed>) = 9 [pid 5028] <... write resumed>) = 4 [pid 5027] close(3 [pid 5029] close(3 [pid 5027] <... close resumed>) = 0 [pid 5028] close(3 [pid 5029] <... close resumed>) = 0 [pid 5028] <... close resumed>) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5028] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5027] <... openat resumed>) = 3 [pid 5029] <... openat resumed>) = 3 [pid 5028] <... openat resumed>) = 3 [pid 5027] write(3, "1024", 4 [pid 5029] write(3, "1024", 4 [pid 5028] write(3, "1024", 4 [pid 5029] <... write resumed>) = 4 [pid 5028] <... write resumed>) = 4 [pid 5027] <... write resumed>) = 4 [pid 5029] close(3 [pid 5027] close(3 [pid 5028] close(3 [pid 5029] <... close resumed>) = 0 [pid 5027] <... close resumed>) = 0 [pid 5028] <... close resumed>) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5028] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5027] <... openat resumed>) = 3 [pid 5028] <... openat resumed>) = 3 [pid 5027] write(3, "1024 1048576 500 1024", 21 [pid 5029] write(3, "8192", 4) = 4 [pid 5028] write(3, "1024 1048576 500 1024", 21 [pid 5029] close(3 [pid 5027] <... write resumed>) = 21 [pid 5028] <... write resumed>) = 21 [pid 5029] <... close resumed>) = 0 [pid 5027] close(3 [pid 5028] close(3 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5027] <... close resumed>) = 0 [pid 5028] <... close resumed>) = 0 [pid 5027] getpid( [pid 5029] <... openat resumed>) = 3 [pid 5027] <... getpid resumed>) = 1 [pid 5028] getpid( [pid 5029] write(3, "1024", 4 [pid 5027] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 5028] <... getpid resumed>) = 1 [pid 5029] <... write resumed>) = 4 [pid 5027] <... capget resumed>{effective=1< [pid 5028] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 5027] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5029] <... close resumed>) = 0 [pid 5028] <... capget resumed>{effective=1<) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5028] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5027] unshare(CLONE_NEWNET [pid 5029] <... openat resumed>) = 3 [pid 5028] <... capset resumed>) = 0 [pid 5028] unshare(CLONE_NEWNET [pid 5029] write(3, "1024", 4) = 4 [pid 5029] close(3) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5029] close(3) = 0 [pid 5029] getpid() = 1 [pid 5029] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5030] <... unshare resumed>) = 0 [pid 5030] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3 [pid 5030] write(3, "0 65535", 7) = 7 [pid 5030] close(3) = 0 [pid 5030] mkdir("/dev/binderfs", 0777) = 0 [pid 5030] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0 [pid 5030] getpid() = 1 [pid 5030] mkdir("/syzcgroup/unified/syz4", 0777) = 0 [pid 5030] openat(AT_FDCWD, "/syzcgroup/unified/syz4/pids.max", O_WRONLY|O_CLOEXEC) = 3 [pid 5030] write(3, "32", 2) = 2 [pid 5030] close(3) = 0 [pid 5030] openat(AT_FDCWD, "/syzcgroup/unified/syz4/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3 [pid 5030] write(3, "1", 1 [pid 5026] <... unshare resumed>) = 0 [pid 5026] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5030] <... write resumed>) = 1 [pid 5026] <... openat resumed>) = 3 [pid 5030] close(3) = 0 [pid 5030] mkdir("/syzcgroup/cpu/syz4", 0777) = 0 [pid 5026] write(3, "0 65535", 7 [pid 5030] openat(AT_FDCWD, "/syzcgroup/cpu/syz4/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3 [pid 5030] write(3, "1", 1) = 1 [pid 5030] close(3 [pid 5026] <... write resumed>) = 7 [pid 5026] close(3) = 0 [pid 5026] mkdir("/dev/binderfs", 0777) = -1 EEXIST (File exists) [pid 5026] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5030] <... close resumed>) = 0 [pid 5030] openat(AT_FDCWD, "/syzcgroup/cpu/syz4/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5026] <... mount resumed>) = 0 [pid 5026] getpid() = 1 [pid 5026] mkdir("/syzcgroup/unified/syz2", 0777 [pid 5030] <... openat resumed>) = 3 [pid 5030] write(3, "313524224", 9) = 9 [pid 5026] <... mkdir resumed>) = 0 [pid 5026] openat(AT_FDCWD, "/syzcgroup/unified/syz2/pids.max", O_WRONLY|O_CLOEXEC [pid 5030] close(3) = 0 [pid 5026] <... openat resumed>) = 3 [pid 5030] openat(AT_FDCWD, "/syzcgroup/cpu/syz4/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5026] write(3, "32", 2) = 2 [pid 5026] close(3) = 0 [pid 5026] openat(AT_FDCWD, "/syzcgroup/unified/syz2/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3 [pid 5026] write(3, "1", 1) = 1 [pid 5026] close(3 [pid 5030] <... openat resumed>) = 3 [pid 5026] <... close resumed>) = 0 [pid 5026] mkdir("/syzcgroup/cpu/syz2", 0777 [pid 5031] <... unshare resumed>) = 0 [pid 5030] write(3, "314572800", 9 [pid 5026] <... mkdir resumed>) = 0 [pid 5026] openat(AT_FDCWD, "/syzcgroup/cpu/syz2/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3 [pid 5026] write(3, "1", 1) = 1 [pid 5030] <... write resumed>) = 9 [pid 5026] close(3) = 0 [pid 5026] openat(AT_FDCWD, "/syzcgroup/cpu/syz2/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5031] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5030] close(3 [pid 5026] <... openat resumed>) = 3 [pid 5030] <... close resumed>) = 0 [pid 5026] write(3, "313524224", 9) = 9 [pid 5031] <... openat resumed>) = 3 [pid 5030] mkdir("/syzcgroup/net/syz4", 0777 [pid 5026] close(3) = 0 [pid 5026] openat(AT_FDCWD, "/syzcgroup/cpu/syz2/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC) = 3 [pid 5026] write(3, "314572800", 9) = 9 [pid 5026] close(3) = 0 [pid 5026] mkdir("/syzcgroup/net/syz2", 0777 [pid 5031] write(3, "0 65535", 7) = 7 [pid 5031] close(3) = 0 [pid 5031] mkdir("/dev/binderfs", 0777) = -1 EEXIST (File exists) [pid 5031] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0 [pid 5031] getpid() = 1 [pid 5031] mkdir("/syzcgroup/unified/syz5", 0777) = 0 [pid 5030] <... mkdir resumed>) = 0 [pid 5026] <... mkdir resumed>) = 0 [pid 5030] openat(AT_FDCWD, "/syzcgroup/net/syz4/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5026] openat(AT_FDCWD, "/syzcgroup/net/syz2/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5031] openat(AT_FDCWD, "/syzcgroup/unified/syz5/pids.max", O_WRONLY|O_CLOEXEC) = 3 [pid 5030] <... openat resumed>) = 3 [pid 5031] write(3, "32", 2) = 2 [pid 5031] close(3 [pid 5030] write(3, "1", 1 [pid 5026] <... openat resumed>) = 3 [pid 5031] <... close resumed>) = 0 [pid 5031] openat(AT_FDCWD, "/syzcgroup/unified/syz5/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5030] <... write resumed>) = 1 [pid 5026] write(3, "1", 1 [pid 5030] close(3 [pid 5031] <... openat resumed>) = 3 [pid 5030] <... close resumed>) = 0 [pid 5026] <... write resumed>) = 1 [pid 5030] mkdir("./0", 0777 [pid 5026] close(3 [pid 5031] write(3, "1", 1) = 1 [pid 5030] <... mkdir resumed>) = 0 [pid 5026] <... close resumed>) = 0 [pid 5031] close(3 [pid 5030] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5026] mkdir("./0", 0777 [pid 5031] <... close resumed>) = 0 [pid 5030] <... openat resumed>) = 3 [pid 5026] <... mkdir resumed>) = 0 [pid 5031] mkdir("/syzcgroup/cpu/syz5", 0777 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5026] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5030] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5026] <... openat resumed>) = 3 [pid 5030] close(3 [pid 5026] ioctl(3, LOOP_CLR_FD [pid 5030] <... close resumed>) = 0 [pid 5026] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5026] close(3 [pid 5031] <... mkdir resumed>) = 0 [pid 5026] <... close resumed>) = 0 [pid 5030] <... clone resumed>, child_tidptr=0x555555843690) = 2 [pid 5026] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555843690) = 2 ./strace-static-x86_64: Process 5037 attached ./strace-static-x86_64: Process 5036 attached [pid 5031] openat(AT_FDCWD, "/syzcgroup/cpu/syz5/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5037] set_robust_list(0x5555558436a0, 24 [pid 5036] set_robust_list(0x5555558436a0, 24 [pid 5037] <... set_robust_list resumed>) = 0 [pid 5036] <... set_robust_list resumed>) = 0 [pid 5031] <... openat resumed>) = 3 [pid 5037] chdir("./0" [pid 5031] write(3, "1", 1 [pid 5037] <... chdir resumed>) = 0 [pid 5036] chdir("./0" [pid 5037] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5036] <... chdir resumed>) = 0 [pid 5031] <... write resumed>) = 1 [pid 5037] <... prctl resumed>) = 0 [pid 5036] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5031] close(3 [pid 5037] setpgid(0, 0 [pid 5036] <... prctl resumed>) = 0 [pid 5031] <... close resumed>) = 0 [pid 5037] <... setpgid resumed>) = 0 [pid 5036] setpgid(0, 0 [pid 5031] openat(AT_FDCWD, "/syzcgroup/cpu/syz5/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5037] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5031] <... openat resumed>) = 3 [pid 5037] <... symlink resumed>) = 0 [pid 5031] write(3, "313524224", 9 [pid 5037] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5036] <... setpgid resumed>) = 0 [pid 5031] <... write resumed>) = 9 [pid 5037] <... symlink resumed>) = 0 [pid 5031] close(3 [pid 5036] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5037] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5031] <... close resumed>) = 0 [pid 5037] <... symlink resumed>) = 0 [pid 5031] openat(AT_FDCWD, "/syzcgroup/cpu/syz5/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5036] <... symlink resumed>) = 0 [pid 5037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5031] <... openat resumed>) = 3 [pid 5037] <... openat resumed>) = 3 [pid 5031] write(3, "314572800", 9 [pid 5036] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5037] write(3, "1000", 4 [pid 5031] <... write resumed>) = 9 [pid 5037] <... write resumed>) = 4 [pid 5036] <... symlink resumed>) = 0 [pid 5031] close(3 [pid 5037] close(3 [pid 5036] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5031] <... close resumed>) = 0 [pid 5037] <... close resumed>) = 0 [pid 5036] <... symlink resumed>) = 0 [pid 5031] mkdir("/syzcgroup/net/syz5", 0777 [pid 5037] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5037] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5037] rt_sigaction(SIGRT_1, {sa_handler=0x7fb09f323990, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb09f314b40}, [pid 5036] <... openat resumed>) = 3 [pid 5037] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5037] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5036] write(3, "1000", 4 [pid 5037] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5036] <... write resumed>) = 4 [pid 5037] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5036] close(3 [pid 5029] <... unshare resumed>) = 0 [pid 5037] <... mmap resumed>) = 0x7fb09f299000 [pid 5037] mprotect(0x7fb09f29a000, 131072, PROT_READ|PROT_WRITE [pid 5036] <... close resumed>) = 0 [pid 5029] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5037] <... mprotect resumed>) = 0 [pid 5036] symlink("/dev/binderfs", "./binderfs" [pid 5029] <... openat resumed>) = 3 [pid 5037] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5036] <... symlink resumed>) = 0 [pid 5037] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5037] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb09f2b9990, parent_tid=0x7fb09f2b9990, exit_signal=0, stack=0x7fb09f299000, stack_size=0x20300, tls=0x7fb09f2b96c0} [pid 5036] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] write(3, "0 65535", 7./strace-static-x86_64: Process 5041 attached [pid 5036] <... futex resumed>) = 0 [pid 5029] <... write resumed>) = 7 [pid 5027] <... unshare resumed>) = 0 [pid 5041] rseq(0x7fb09f2b9fe0, 0x20, 0, 0x53053053) = 0 [pid 5041] set_robust_list(0x7fb09f2b99a0, 24) = 0 [pid 5041] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5041] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5029] close(3 [pid 5036] rt_sigaction(SIGRT_1, {sa_handler=0x7fb09f323990, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb09f314b40}, [pid 5037] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3 [pid 5036] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5029] <... close resumed>) = 0 [pid 5037] rt_sigprocmask(SIG_SETMASK, [], [pid 5036] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5029] mkdir("/dev/binderfs", 0777 [pid 5027] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5037] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5036] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5029] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5037] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5036] <... mmap resumed>) = 0x7fb09f299000 [pid 5029] <... mount resumed>) = 0 [pid 5031] <... mkdir resumed>) = 0 [pid 5037] <... futex resumed>) = 1 [pid 5041] <... futex resumed>) = 0 [pid 5036] mprotect(0x7fb09f29a000, 131072, PROT_READ|PROT_WRITE [pid 5031] openat(AT_FDCWD, "/syzcgroup/net/syz5/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5029] getpid( [pid 5027] <... openat resumed>) = 3 [pid 5036] <... mprotect resumed>) = 0 [pid 5031] <... openat resumed>) = 3 [pid 5029] <... getpid resumed>) = 1 [pid 5041] memfd_create("syzkaller", 0 [pid 5037] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5036] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5031] write(3, "1", 1 [pid 5027] write(3, "0 65535", 7 [pid 5036] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5031] <... write resumed>) = 1 [pid 5027] <... write resumed>) = 7 [pid 5036] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb09f2b9990, parent_tid=0x7fb09f2b9990, exit_signal=0, stack=0x7fb09f299000, stack_size=0x20300, tls=0x7fb09f2b96c0} [pid 5031] close(3 [pid 5027] close(3 [pid 5031] <... close resumed>) = 0 [pid 5027] <... close resumed>) = 0 [pid 5036] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3 [pid 5031] mkdir("./0", 0777 [pid 5027] mkdir("/dev/binderfs", 0777./strace-static-x86_64: Process 5042 attached [pid 5041] <... memfd_create resumed>) = 3 [pid 5036] rt_sigprocmask(SIG_SETMASK, [], [pid 5031] <... mkdir resumed>) = 0 [pid 5029] mkdir("/syzcgroup/unified/syz3", 0777 [pid 5027] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5042] rseq(0x7fb09f2b9fe0, 0x20, 0, 0x53053053 [pid 5041] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5036] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5031] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5029] <... mkdir resumed>) = 0 [pid 5027] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5042] <... rseq resumed>) = 0 [pid 5041] <... mmap resumed>) = 0x7fb096e99000 [pid 5036] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5031] <... openat resumed>) = 3 [pid 5029] openat(AT_FDCWD, "/syzcgroup/unified/syz3/pids.max", O_WRONLY|O_CLOEXEC [pid 5042] set_robust_list(0x7fb09f2b99a0, 24 [pid 5036] <... futex resumed>) = 0 [pid 5031] ioctl(3, LOOP_CLR_FD [pid 5027] <... mount resumed>) = 0 [pid 5042] <... set_robust_list resumed>) = 0 [pid 5036] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5031] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5029] <... openat resumed>) = 3 [pid 5027] getpid( [pid 5042] rt_sigprocmask(SIG_SETMASK, [], [pid 5031] close(3 [pid 5029] write(3, "32", 2 [pid 5027] <... getpid resumed>) = 1 [pid 5042] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5031] <... close resumed>) = 0 [pid 5027] mkdir("/syzcgroup/unified/syz0", 0777 [pid 5031] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5027] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5044 attached [pid 5029] <... write resumed>) = 2 [pid 5027] openat(AT_FDCWD, "/syzcgroup/unified/syz0/pids.max", O_WRONLY|O_CLOEXEC [pid 5042] memfd_create("syzkaller", 0 [pid 5044] set_robust_list(0x5555558436a0, 24 [pid 5031] <... clone resumed>, child_tidptr=0x555555843690) = 2 [pid 5029] close(3 [pid 5027] <... openat resumed>) = 3 [pid 5044] <... set_robust_list resumed>) = 0 [pid 5042] <... memfd_create resumed>) = 3 [pid 5029] <... close resumed>) = 0 [pid 5027] write(3, "32", 2 [pid 5044] chdir("./0" [pid 5042] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5029] openat(AT_FDCWD, "/syzcgroup/unified/syz3/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5027] <... write resumed>) = 2 [pid 5044] <... chdir resumed>) = 0 [pid 5042] <... mmap resumed>) = 0x7fb096e99000 [pid 5027] close(3 [pid 5029] <... openat resumed>) = 3 [pid 5044] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5029] write(3, "1", 1 [pid 5027] <... close resumed>) = 0 [pid 5044] <... prctl resumed>) = 0 [pid 5029] <... write resumed>) = 1 [pid 5027] openat(AT_FDCWD, "/syzcgroup/unified/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5044] setpgid(0, 0 [pid 5029] close(3 [pid 5027] <... openat resumed>) = 3 [pid 5044] <... setpgid resumed>) = 0 [pid 5029] <... close resumed>) = 0 [pid 5027] write(3, "1", 1 [pid 5044] symlink("/syzcgroup/unified/syz5", "./cgroup" [pid 5029] mkdir("/syzcgroup/cpu/syz3", 0777 [pid 5027] <... write resumed>) = 1 [pid 5044] <... symlink resumed>) = 0 [pid 5027] close(3) = 0 [pid 5027] mkdir("/syzcgroup/cpu/syz0", 0777 [pid 5044] symlink("/syzcgroup/cpu/syz5", "./cgroup.cpu" [pid 5029] <... mkdir resumed>) = 0 [pid 5027] <... mkdir resumed>) = 0 [pid 5044] <... symlink resumed>) = 0 [pid 5029] openat(AT_FDCWD, "/syzcgroup/cpu/syz3/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5027] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5044] symlink("/syzcgroup/net/syz5", "./cgroup.net" [pid 5029] <... openat resumed>) = 3 [pid 5027] <... openat resumed>) = 3 [pid 5044] <... symlink resumed>) = 0 [pid 5029] write(3, "1", 1 [pid 5027] write(3, "1", 1 [pid 5044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5029] <... write resumed>) = 1 [pid 5027] <... write resumed>) = 1 [pid 5044] <... openat resumed>) = 3 [pid 5029] close(3 [pid 5027] close(3 [pid 5044] write(3, "1000", 4 [pid 5029] <... close resumed>) = 0 [pid 5027] <... close resumed>) = 0 [pid 5044] <... write resumed>) = 4 [pid 5029] openat(AT_FDCWD, "/syzcgroup/cpu/syz3/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5027] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5044] close(3 [pid 5029] <... openat resumed>) = 3 [pid 5027] <... openat resumed>) = 3 [pid 5044] <... close resumed>) = 0 [pid 5029] write(3, "313524224", 9 [pid 5027] write(3, "313524224", 9 [pid 5044] symlink("/dev/binderfs", "./binderfs" [pid 5029] <... write resumed>) = 9 [pid 5027] <... write resumed>) = 9 [pid 5044] <... symlink resumed>) = 0 [pid 5029] close(3 [pid 5027] close(3 [pid 5044] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] <... close resumed>) = 0 [pid 5027] <... close resumed>) = 0 [pid 5044] <... futex resumed>) = 0 [pid 5029] openat(AT_FDCWD, "/syzcgroup/cpu/syz3/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5027] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5044] rt_sigaction(SIGRT_1, {sa_handler=0x7fb09f323990, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb09f314b40}, [pid 5029] <... openat resumed>) = 3 [pid 5027] <... openat resumed>) = 3 [pid 5044] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5029] write(3, "314572800", 9 [pid 5028] <... unshare resumed>) = 0 [pid 5027] write(3, "314572800", 9 [pid 5044] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5029] <... write resumed>) = 9 [pid 5028] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5027] <... write resumed>) = 9 [pid 5044] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5029] close(3 [pid 5028] <... openat resumed>) = 3 [pid 5027] close(3 [pid 5044] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5028] write(3, "0 65535", 7 [pid 5027] <... close resumed>) = 0 [pid 5028] <... write resumed>) = 7 [pid 5027] mkdir("/syzcgroup/net/syz0", 0777 [pid 5028] close(3 [pid 5027] <... mkdir resumed>) = 0 [pid 5028] <... close resumed>) = 0 [pid 5027] openat(AT_FDCWD, "/syzcgroup/net/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5028] mkdir("/dev/binderfs", 0777 [pid 5027] <... openat resumed>) = 3 [pid 5029] <... close resumed>) = 0 [pid 5028] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5027] write(3, "1", 1 [pid 5044] <... mmap resumed>) = 0x7fb09f299000 [pid 5029] mkdir("/syzcgroup/net/syz3", 0777 [pid 5044] mprotect(0x7fb09f29a000, 131072, PROT_READ|PROT_WRITE [pid 5028] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5027] <... write resumed>) = 1 [pid 5028] <... mount resumed>) = 0 [pid 5027] close(3 [pid 5044] <... mprotect resumed>) = 0 [pid 5029] <... mkdir resumed>) = 0 [pid 5028] getpid( [pid 5027] <... close resumed>) = 0 [pid 5044] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5029] openat(AT_FDCWD, "/syzcgroup/net/syz3/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5028] <... getpid resumed>) = 1 [pid 5027] mkdir("./0", 0777 [pid 5044] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5029] <... openat resumed>) = 3 [pid 5028] mkdir("/syzcgroup/unified/syz1", 0777 [pid 5027] <... mkdir resumed>) = 0 [pid 5044] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb09f2b9990, parent_tid=0x7fb09f2b9990, exit_signal=0, stack=0x7fb09f299000, stack_size=0x20300, tls=0x7fb09f2b96c0} [pid 5029] write(3, "1", 1 [pid 5028] <... mkdir resumed>) = 0 [ 46.686413][ T5041] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5041 'syz-executor597' [pid 5027] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5045 attached [pid 5029] <... write resumed>) = 1 [pid 5028] openat(AT_FDCWD, "/syzcgroup/unified/syz1/pids.max", O_WRONLY|O_CLOEXEC [pid 5027] <... openat resumed>) = 3 [pid 5045] rseq(0x7fb09f2b9fe0, 0x20, 0, 0x53053053 [pid 5044] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3 [pid 5029] close(3 [pid 5028] <... openat resumed>) = 3 [pid 5027] ioctl(3, LOOP_CLR_FD [pid 5045] <... rseq resumed>) = 0 [pid 5044] rt_sigprocmask(SIG_SETMASK, [], [pid 5029] <... close resumed>) = 0 [pid 5028] write(3, "32", 2 [pid 5027] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5045] set_robust_list(0x7fb09f2b99a0, 24 [pid 5044] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5029] mkdir("./0", 0777 [pid 5028] <... write resumed>) = 2 [pid 5027] close(3 [pid 5045] <... set_robust_list resumed>) = 0 [pid 5044] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5028] close(3 [pid 5027] <... close resumed>) = 0 [pid 5045] rt_sigprocmask(SIG_SETMASK, [], [pid 5044] <... futex resumed>) = 0 [pid 5029] <... mkdir resumed>) = 0 [pid 5028] <... close resumed>) = 0 [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5046 attached [pid 5045] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5044] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5029] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5028] openat(AT_FDCWD, "/syzcgroup/unified/syz1/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5046] set_robust_list(0x5555558436a0, 24 [pid 5045] memfd_create("syzkaller", 0 [pid 5029] <... openat resumed>) = 3 [pid 5028] <... openat resumed>) = 3 [pid 5027] <... clone resumed>, child_tidptr=0x555555843690) = 2 [pid 5046] <... set_robust_list resumed>) = 0 [pid 5045] <... memfd_create resumed>) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD [pid 5028] write(3, "1", 1 [pid 5046] chdir("./0" [pid 5045] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5029] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5028] <... write resumed>) = 1 [pid 5046] <... chdir resumed>) = 0 [pid 5045] <... mmap resumed>) = 0x7fb096e99000 [pid 5029] close(3 [pid 5028] close(3 [pid 5046] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5029] <... close resumed>) = 0 [pid 5028] <... close resumed>) = 0 [pid 5046] <... prctl resumed>) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5028] mkdir("/syzcgroup/cpu/syz1", 0777./strace-static-x86_64: Process 5047 attached [pid 5046] setpgid(0, 0 [pid 5028] <... mkdir resumed>) = 0 [pid 5047] set_robust_list(0x5555558436a0, 24 [pid 5046] <... setpgid resumed>) = 0 [pid 5029] <... clone resumed>, child_tidptr=0x555555843690) = 2 [pid 5028] openat(AT_FDCWD, "/syzcgroup/cpu/syz1/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5047] <... set_robust_list resumed>) = 0 [pid 5046] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5028] <... openat resumed>) = 3 [pid 5047] chdir("./0" [pid 5046] <... symlink resumed>) = 0 [pid 5028] write(3, "1", 1 [pid 5047] <... chdir resumed>) = 0 [pid 5046] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5028] <... write resumed>) = 1 [pid 5047] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5046] <... symlink resumed>) = 0 [pid 5028] close(3 [pid 5047] <... prctl resumed>) = 0 [pid 5046] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5028] <... close resumed>) = 0 [pid 5047] setpgid(0, 0 [pid 5046] <... symlink resumed>) = 0 [pid 5028] openat(AT_FDCWD, "/syzcgroup/cpu/syz1/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5047] <... setpgid resumed>) = 0 [pid 5046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5028] <... openat resumed>) = 3 [pid 5047] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5046] <... openat resumed>) = 3 [pid 5028] write(3, "313524224", 9 [pid 5047] <... symlink resumed>) = 0 [pid 5046] write(3, "1000", 4 [pid 5028] <... write resumed>) = 9 [pid 5047] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5046] <... write resumed>) = 4 [pid 5028] close(3 [pid 5047] <... symlink resumed>) = 0 [pid 5046] close(3 [pid 5028] <... close resumed>) = 0 [pid 5047] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5046] <... close resumed>) = 0 [pid 5028] openat(AT_FDCWD, "/syzcgroup/cpu/syz1/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5047] <... symlink resumed>) = 0 [pid 5046] symlink("/dev/binderfs", "./binderfs" [pid 5028] <... openat resumed>) = 3 [pid 5047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5046] <... symlink resumed>) = 0 [pid 5028] write(3, "314572800", 9 [pid 5047] <... openat resumed>) = 3 [pid 5046] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5028] <... write resumed>) = 9 [pid 5047] write(3, "1000", 4 [pid 5046] <... futex resumed>) = 0 [pid 5028] close(3 [pid 5047] <... write resumed>) = 4 [pid 5046] rt_sigaction(SIGRT_1, {sa_handler=0x7fb09f323990, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb09f314b40}, [pid 5028] <... close resumed>) = 0 [pid 5047] close(3 [pid 5046] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5028] mkdir("/syzcgroup/net/syz1", 0777 [pid 5047] <... close resumed>) = 0 [pid 5046] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5028] <... mkdir resumed>) = 0 [pid 5047] symlink("/dev/binderfs", "./binderfs" [pid 5046] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5028] openat(AT_FDCWD, "/syzcgroup/net/syz1/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5047] <... symlink resumed>) = 0 [pid 5046] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5028] <... openat resumed>) = 3 [pid 5047] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5046] <... mmap resumed>) = 0x7fb09f299000 [pid 5028] write(3, "1", 1 [pid 5047] <... futex resumed>) = 0 [pid 5046] mprotect(0x7fb09f29a000, 131072, PROT_READ|PROT_WRITE [pid 5028] <... write resumed>) = 1 [pid 5047] rt_sigaction(SIGRT_1, {sa_handler=0x7fb09f323990, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb09f314b40}, [pid 5046] <... mprotect resumed>) = 0 [pid 5028] close(3 [pid 5047] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5046] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5045] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5028] <... close resumed>) = 0 [pid 5047] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5046] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5028] mkdir("./0", 0777 [pid 5047] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5046] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb09f2b9990, parent_tid=0x7fb09f2b9990, exit_signal=0, stack=0x7fb09f299000, stack_size=0x20300, tls=0x7fb09f2b96c0} [pid 5028] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5048 attached [pid 5047] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5028] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5048] rseq(0x7fb09f2b9fe0, 0x20, 0, 0x53053053 [pid 5047] <... mmap resumed>) = 0x7fb09f299000 [pid 5046] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3 [pid 5028] <... openat resumed>) = 3 [pid 5048] <... rseq resumed>) = 0 [pid 5047] mprotect(0x7fb09f29a000, 131072, PROT_READ|PROT_WRITE [pid 5046] rt_sigprocmask(SIG_SETMASK, [], [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5048] set_robust_list(0x7fb09f2b99a0, 24 [pid 5047] <... mprotect resumed>) = 0 [pid 5046] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5028] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5048] <... set_robust_list resumed>) = 0 [pid 5047] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5046] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5028] close(3 [pid 5048] rt_sigprocmask(SIG_SETMASK, [], [pid 5047] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5046] <... futex resumed>) = 0 [pid 5028] <... close resumed>) = 0 [pid 5048] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5047] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb09f2b9990, parent_tid=0x7fb09f2b9990, exit_signal=0, stack=0x7fb09f299000, stack_size=0x20300, tls=0x7fb09f2b96c0} [pid 5046] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5050 attached ./strace-static-x86_64: Process 5049 attached [pid 5048] memfd_create("syzkaller", 0 [pid 5050] set_robust_list(0x5555558436a0, 24 [pid 5049] rseq(0x7fb09f2b9fe0, 0x20, 0, 0x53053053 [pid 5048] <... memfd_create resumed>) = 3 [pid 5047] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3 [pid 5028] <... clone resumed>, child_tidptr=0x555555843690) = 2 [pid 5050] <... set_robust_list resumed>) = 0 [pid 5049] <... rseq resumed>) = 0 [pid 5048] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5047] rt_sigprocmask(SIG_SETMASK, [], [pid 5050] chdir("./0" [pid 5049] set_robust_list(0x7fb09f2b99a0, 24 [pid 5048] <... mmap resumed>) = 0x7fb096e99000 [pid 5047] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5050] <... chdir resumed>) = 0 [pid 5049] <... set_robust_list resumed>) = 0 [pid 5047] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5050] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5049] rt_sigprocmask(SIG_SETMASK, [], [pid 5047] <... futex resumed>) = 0 [pid 5050] <... prctl resumed>) = 0 [pid 5049] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5047] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5050] setpgid(0, 0 [pid 5049] memfd_create("syzkaller", 0 [pid 5050] <... setpgid resumed>) = 0 [pid 5049] <... memfd_create resumed>) = 3 [pid 5050] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5049] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5050] <... symlink resumed>) = 0 [pid 5049] <... mmap resumed>) = 0x7fb096e99000 [pid 5050] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 5050] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 5050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] write(3, "1000", 4) = 4 [pid 5050] close(3) = 0 [pid 5050] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5050] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5050] rt_sigaction(SIGRT_1, {sa_handler=0x7fb09f323990, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb09f314b40}, NULL, 8) = 0 [pid 5050] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5050] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb09f299000 [pid 5050] mprotect(0x7fb09f29a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5050] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5050] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb09f2b9990, parent_tid=0x7fb09f2b9990, exit_signal=0, stack=0x7fb09f299000, stack_size=0x20300, tls=0x7fb09f2b96c0}./strace-static-x86_64: Process 5051 attached [pid 5051] rseq(0x7fb09f2b9fe0, 0x20, 0, 0x53053053 [pid 5050] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3 [pid 5051] <... rseq resumed>) = 0 [pid 5050] rt_sigprocmask(SIG_SETMASK, [], [pid 5051] set_robust_list(0x7fb09f2b99a0, 24 [pid 5050] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5051] <... set_robust_list resumed>) = 0 [pid 5050] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] rt_sigprocmask(SIG_SETMASK, [], [pid 5050] <... futex resumed>) = 0 [pid 5051] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5050] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5051] memfd_create("syzkaller", 0) = 3 [pid 5051] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb096e99000 [pid 5041] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5042] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5051] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5049] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5048] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5045] <... write resumed>) = 16777216 [pid 5045] munmap(0x7fb096e99000, 16777216) = 0 [pid 5045] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5045] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5045] close(3) = 0 [pid 5045] mkdir("./file0", 0777) = 0 [ 47.311389][ T5045] loop5: detected capacity change from 0 to 32768 [ 47.335233][ T5045] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop5 scanned by syz-executor597 (5045) [pid 5045] mount("/dev/loop5", "./file0", "btrfs", MS_NOEXEC|MS_STRICTATIME, "datacow,clear_cache,nodatasum,rescan_uuid_tree,degraded,space_cache=v1," [pid 5041] <... write resumed>) = 16777216 [pid 5041] munmap(0x7fb096e99000, 16777216) = 0 [ 47.402605][ T5045] BTRFS info (device loop5): using xxhash64 (xxhash64-generic) checksum algorithm [ 47.433116][ T5045] BTRFS info (device loop5): force clearing of disk cache [pid 5042] <... write resumed>) = 16777216 [pid 5042] munmap(0x7fb096e99000, 16777216 [pid 5041] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5041] ioctl(4, LOOP_SET_FD, 3 [pid 5042] <... munmap resumed>) = 0 [pid 5042] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5042] ioctl(4, LOOP_SET_FD, 3 [pid 5041] <... ioctl resumed>) = 0 [pid 5041] close(3 [pid 5042] <... ioctl resumed>) = 0 [ 47.458265][ T5045] BTRFS info (device loop5): setting nodatasum [ 47.475151][ T5041] loop2: detected capacity change from 0 to 32768 [ 47.479764][ T5045] BTRFS info (device loop5): allowing degraded mounts [ 47.488942][ T5045] BTRFS info (device loop5): enabling disk space caching [ 47.498329][ T5042] loop4: detected capacity change from 0 to 32768 [pid 5042] close(3 [pid 5041] <... close resumed>) = 0 [pid 5042] <... close resumed>) = 0 [pid 5041] mkdir("./file0", 0777 [pid 5042] mkdir("./file0", 0777 [pid 5041] <... mkdir resumed>) = 0 [pid 5041] mount("/dev/loop2", "./file0", "btrfs", MS_NOEXEC|MS_STRICTATIME, "datacow,clear_cache,nodatasum,rescan_uuid_tree,degraded,space_cache=v1," [pid 5042] <... mkdir resumed>) = 0 [pid 5051] <... write resumed>) = 16777216 [pid 5051] munmap(0x7fb096e99000, 16777216 [pid 5042] mount("/dev/loop4", "./file0", "btrfs", MS_NOEXEC|MS_STRICTATIME, "datacow,clear_cache,nodatasum,rescan_uuid_tree,degraded,space_cache=v1," [pid 5051] <... munmap resumed>) = 0 [pid 5041] <... mount resumed>) = -1 EEXIST (File exists) [ 47.519362][ T5045] BTRFS info (device loop5): disk space caching is enabled [ 47.535279][ T5041] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor597 (5041) [pid 5041] ioctl(4, LOOP_CLR_FD [pid 5049] <... write resumed>) = 16777216 [pid 5049] munmap(0x7fb096e99000, 16777216 [pid 5051] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5051] ioctl(4, LOOP_SET_FD, 3 [pid 5049] <... munmap resumed>) = 0 [pid 5049] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5049] ioctl(4, LOOP_SET_FD, 3 [pid 5051] <... ioctl resumed>) = 0 [pid 5048] <... write resumed>) = 16777216 [pid 5042] <... mount resumed>) = -1 EEXIST (File exists) [pid 5051] close(3 [pid 5049] <... ioctl resumed>) = 0 [pid 5048] munmap(0x7fb096e99000, 16777216 [pid 5042] ioctl(4, LOOP_CLR_FD [pid 5051] <... close resumed>) = 0 [pid 5049] close(3 [pid 5051] mkdir("./file0", 0777) = 0 [pid 5051] mount("/dev/loop1", "./file0", "btrfs", MS_NOEXEC|MS_STRICTATIME, "datacow,clear_cache,nodatasum,rescan_uuid_tree,degraded,space_cache=v1," [pid 5049] <... close resumed>) = 0 [pid 5048] <... munmap resumed>) = 0 [pid 5049] mkdir("./file0", 0777) = 0 [pid 5049] mount("/dev/loop3", "./file0", "btrfs", MS_NOEXEC|MS_STRICTATIME, "datacow,clear_cache,nodatasum,rescan_uuid_tree,degraded,space_cache=v1," [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 47.568134][ T5042] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor597 (5042) [ 47.581836][ T5051] loop1: detected capacity change from 0 to 32768 [ 47.584361][ T5049] loop3: detected capacity change from 0 to 32768 [ 47.601588][ T5051] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor597 (5051) [ 47.610669][ T5048] loop0: detected capacity change from 0 to 32768 [pid 5048] ioctl(4, LOOP_SET_FD, 3 [pid 5051] <... mount resumed>) = -1 EEXIST (File exists) [pid 5048] <... ioctl resumed>) = 0 [pid 5048] close(3) = 0 [pid 5048] mkdir("./file0", 0777 [pid 5051] ioctl(4, LOOP_CLR_FD [pid 5049] <... mount resumed>) = -1 EEXIST (File exists) [pid 5048] <... mkdir resumed>) = 0 [pid 5048] mount("/dev/loop0", "./file0", "btrfs", MS_NOEXEC|MS_STRICTATIME, "datacow,clear_cache,nodatasum,rescan_uuid_tree,degraded,space_cache=v1," [pid 5049] ioctl(4, LOOP_CLR_FD [pid 5048] <... mount resumed>) = -1 EEXIST (File exists) [ 47.614221][ T5049] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor597 (5049) [ 47.652067][ T5048] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor597 (5048) [pid 5048] ioctl(4, LOOP_CLR_FD [pid 5041] <... ioctl resumed>) = 0 [pid 5041] close(4) = 0 [pid 5041] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5037] <... futex resumed>) = 0 [pid 5041] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5037] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5041] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5037] <... futex resumed>) = 0 [pid 5037] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5041] open("./file0", O_RDONLY) = 3 [pid 5041] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5037] <... futex resumed>) = 0 [pid 5037] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5041] ioctl(3, BTRFS_IOC_GET_SUBVOL_INFO, 0x20001840) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5037] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5041] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5037] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5041] <... futex resumed>) = 0 [pid 5037] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5041] ioctl(3, BTRFS_IOC_BALANCE_V2, {flags=0}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5041] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5037] <... futex resumed>) = 0 [ 47.758149][ T5045] BTRFS info (device loop5): enabling ssd optimizations [pid 5041] open("./file0", O_RDONLY [pid 5037] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5041] <... open resumed>) = 4 [pid 5037] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5049] <... ioctl resumed>) = 0 [pid 5041] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5049] close(4 [pid 5037] <... futex resumed>) = 0 [pid 5049] <... close resumed>) = 0 [pid 5041] ioctl(4, FITRIM, {start=0, len=2885681152, minlen=0} [pid 5037] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5037] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5049] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5047] <... futex resumed>) = 0 [pid 5049] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5047] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5049] open("./file0", O_RDONLY [pid 5047] <... futex resumed>) = 0 [pid 5047] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5049] <... open resumed>) = 3 [pid 5049] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5047] <... futex resumed>) = 0 [pid 5049] ioctl(3, BTRFS_IOC_GET_SUBVOL_INFO, 0x20001840 [pid 5047] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5049] <... ioctl resumed>) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5047] <... futex resumed>) = 0 [pid 5049] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5047] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5049] <... futex resumed>) = 0 [pid 5047] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5049] ioctl(3, BTRFS_IOC_BALANCE_V2, {flags=0} [pid 5047] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... ioctl resumed>) = 0 [pid 5049] <... ioctl resumed>) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5047] <... futex resumed>) = 0 [pid 5049] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5047] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5049] <... futex resumed>) = 0 [pid 5047] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5049] open("./file0", O_RDONLY [pid 5047] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5049] <... open resumed>) = 4 [pid 5047] <... futex resumed>) = 0 [pid 5049] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [ 47.801445][ T5045] BTRFS info (device loop5): auto enabling async discard [pid 5047] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5049] <... futex resumed>) = 0 [pid 5047] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5049] ioctl(4, FITRIM, {start=0, len=2885681152, minlen=0} [pid 5047] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5047] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] close(4) = 0 [pid 5051] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5050] <... futex resumed>) = 0 [pid 5051] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5050] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5050] <... futex resumed>) = 0 [pid 5051] open("./file0", O_RDONLY) = 3 [pid 5050] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5051] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5037] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5050] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5050] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... futex resumed>) = 0 [pid 5050] <... futex resumed>) = 1 [pid 5051] ioctl(3, BTRFS_IOC_GET_SUBVOL_INFO, 0x20001840 [pid 5050] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] <... ioctl resumed>) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5048] <... ioctl resumed>) = 0 [pid 5051] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5050] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5051] <... futex resumed>) = 0 [pid 5051] ioctl(3, BTRFS_IOC_BALANCE_V2, {flags=0} [pid 5050] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... ioctl resumed>) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5050] <... futex resumed>) = 0 [pid 5048] close(4 [pid 5051] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5050] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5048] <... close resumed>) = 0 [pid 5051] <... futex resumed>) = 0 [pid 5050] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5048] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5050] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5048] <... futex resumed>) = 1 [pid 5046] <... futex resumed>) = 0 [pid 5051] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5050] <... futex resumed>) = 0 [pid 5048] open("./file0", O_RDONLY [pid 5046] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] open("./file0", O_RDONLY [pid 5050] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5048] <... open resumed>) = 3 [pid 5046] <... futex resumed>) = 0 [pid 5051] <... open resumed>) = 4 [pid 5048] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5046] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5050] <... futex resumed>) = 0 [pid 5048] <... futex resumed>) = 0 [pid 5046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5051] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5050] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5048] ioctl(3, BTRFS_IOC_GET_SUBVOL_INFO, 0x20001840 [pid 5046] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5050] <... futex resumed>) = 0 [pid 5046] <... futex resumed>) = 0 [pid 5048] <... ioctl resumed>) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5051] ioctl(4, FITRIM, {start=0, len=2885681152, minlen=0} [ 47.845120][ T5045] BTRFS info (device loop5): rebuilding free space tree [pid 5050] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5048] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5047] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5046] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5048] <... futex resumed>) = 0 [pid 5046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5046] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5048] ioctl(3, BTRFS_IOC_BALANCE_V2, {flags=0} [pid 5046] <... futex resumed>) = 0 [pid 5048] <... ioctl resumed>) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5046] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5042] <... ioctl resumed>) = 0 [pid 5042] close(4) = 0 [pid 5042] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5036] <... futex resumed>) = 0 [pid 5042] open("./file0", O_RDONLY [pid 5036] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5042] <... open resumed>) = 3 [pid 5036] <... futex resumed>) = 0 [pid 5036] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5048] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5042] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5048] <... futex resumed>) = 1 [pid 5046] <... futex resumed>) = 0 [pid 5042] <... futex resumed>) = 1 [pid 5036] <... futex resumed>) = 0 [pid 5042] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5036] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5042] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5036] <... futex resumed>) = 0 [pid 5042] ioctl(3, BTRFS_IOC_GET_SUBVOL_INFO, 0x20001840 [pid 5036] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5042] <... ioctl resumed>) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5042] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5041] <... ioctl resumed>) = 0 [pid 5042] <... futex resumed>) = 1 [pid 5041] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] close(3 [pid 5036] <... futex resumed>) = 0 [pid 5042] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5041] <... futex resumed>) = 0 [pid 5037] <... close resumed>) = 0 [pid 5036] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... ioctl resumed>) = 0 [pid 5042] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5041] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5037] close(4 [pid 5036] <... futex resumed>) = 0 [pid 5051] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5042] ioctl(3, BTRFS_IOC_BALANCE_V2, {flags=0} [pid 5037] <... close resumed>) = 0 [pid 5036] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] <... futex resumed>) = 1 [pid 5042] <... ioctl resumed>) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5037] close(5 [pid 5051] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5050] <... futex resumed>) = 0 [pid 5048] open("./file0", O_RDONLY [pid 5046] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5042] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(3 [pid 5048] <... open resumed>) = 4 [pid 5046] <... futex resumed>) = 0 [pid 5042] <... futex resumed>) = 1 [pid 5037] close(6 [pid 5036] <... futex resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5046] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5042] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5050] close(4 [pid 5048] <... futex resumed>) = 0 [pid 5046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5037] close(7 [pid 5036] <... futex resumed>) = 0 [pid 5050] <... close resumed>) = 0 [pid 5048] ioctl(4, FITRIM, {start=0, len=2885681152, minlen=0} [pid 5046] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5042] open("./file0", O_RDONLY [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5042] <... open resumed>) = 4 [pid 5037] close(8 [pid 5050] close(5 [pid 5048] <... ioctl resumed>) = 0 [pid 5046] <... futex resumed>) = 0 [pid 5042] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5046] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5042] <... futex resumed>) = 1 [pid 5037] close(9 [pid 5036] <... futex resumed>) = 0 [pid 5042] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5042] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5037] close(10 [pid 5036] <... futex resumed>) = 0 [pid 5050] close(6 [pid 5048] <... futex resumed>) = 0 [pid 5046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] ioctl(4, FITRIM, {start=0, len=2885681152, minlen=0} [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5048] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5046] close(3 [pid 5045] <... mount resumed>) = 0 [pid 5042] <... ioctl resumed>) = 0 [pid 5037] close(11 [pid 5050] close(7 [pid 5046] <... close resumed>) = 0 [pid 5045] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5042] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(4 [pid 5045] <... openat resumed>) = 3 [pid 5042] <... futex resumed>) = 1 [pid 5037] close(12 [pid 5036] <... futex resumed>) = 0 [pid 5050] close(8 [pid 5046] <... close resumed>) = 0 [pid 5045] chdir("./file0" [pid 5042] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] close(3 [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(5 [pid 5045] <... chdir resumed>) = 0 [pid 5036] <... close resumed>) = 0 [pid 5037] close(13 [pid 5050] close(9 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] ioctl(4, LOOP_CLR_FD [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] close(4 [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(6 [pid 5045] <... ioctl resumed>) = 0 [pid 5037] close(14 [pid 5036] <... close resumed>) = 0 [pid 5050] close(10 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] close(4 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] close(5 [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(7 [pid 5045] <... close resumed>) = 0 [pid 5037] close(15 [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(11 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] close(6 [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(8 [pid 5045] <... futex resumed>) = 1 [pid 5044] <... futex resumed>) = 0 [pid 5037] close(16 [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] close(12 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5044] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] close(7 [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(9 [pid 5045] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5050] close(13 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] open("./file0", O_RDONLY [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(10 [pid 5045] <... open resumed>) = 4 [pid 5044] <... futex resumed>) = 0 [pid 5037] close(17 [pid 5050] close(14 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5044] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(11 [pid 5045] <... futex resumed>) = 0 [pid 5044] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5037] close(18 [pid 5036] close(8 [pid 5050] close(15 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5044] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(12 [pid 5045] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5044] <... futex resumed>) = 0 [pid 5037] close(19 [pid 5036] close(9 [pid 5050] close(16 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] ioctl(4, BTRFS_IOC_GET_SUBVOL_INFO, 0x20001840 [pid 5044] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(13 [pid 5045] <... ioctl resumed>) = 0 [pid 5037] close(20 [pid 5036] close(10 [pid 5050] close(17 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(14 [pid 5045] <... futex resumed>) = 1 [pid 5044] <... futex resumed>) = 0 [pid 5037] close(21 [pid 5036] close(11 [pid 5050] close(18 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5044] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(15 [pid 5045] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5044] <... futex resumed>) = 0 [pid 5037] close(22 [pid 5036] close(12 [pid 5050] close(19 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 47.908263][ T5045] BTRFS info (device loop5): disabling free space tree [ 47.917687][ T5045] BTRFS info (device loop5): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 47.928796][ T5045] BTRFS info (device loop5): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 47.947085][ T5045] BTRFS info (device loop5): checking UUID tree [pid 5045] ioctl(4, BTRFS_IOC_BALANCE_V2, {flags=BTRFS_BALANCE_DATA|BTRFS_BALANCE_METADATA, data={profiles=0, usage=0, devid=makedev(0, 0), pstart=0, pend=0, vstart=0, vend=0, target=0, flags=0}, meta={profiles=0, usage=0, devid=makedev(0, 0), pstart=0, pend=0, vstart=0, vend=0, target=0, flags=0}} [pid 5044] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(16 [pid 5037] close(23 [pid 5036] close(13 [pid 5050] close(20 [pid 5049] <... ioctl resumed>) = 0 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(17 [pid 5050] close(21 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(18 [pid 5050] close(22 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(19 [pid 5050] close(23 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(20 [pid 5050] close(24 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(21 [pid 5050] close(25 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(22 [pid 5050] close(26 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(23 [pid 5050] close(27 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(24 [pid 5050] close(28 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(25 [pid 5050] close(29 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(26 [pid 5050] exit_group(0 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5051] <... futex resumed>) = ? [pid 5050] <... exit_group resumed>) = ? [pid 5046] close(27 [pid 5049] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] close(28 [pid 5047] close(3 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5047] <... close resumed>) = 0 [pid 5046] close(29 [pid 5047] close(4 [pid 5046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5047] <... close resumed>) = 0 [pid 5046] exit_group(0 [pid 5048] <... futex resumed>) = ? [pid 5047] close(5 [pid 5046] <... exit_group resumed>) = ? [pid 5051] +++ exited with 0 +++ [pid 5050] +++ exited with 0 +++ [pid 5049] <... futex resumed>) = 0 [pid 5048] +++ exited with 0 +++ [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5046] +++ exited with 0 +++ [pid 5037] close(24 [pid 5036] close(14 [pid 5049] futex(0x7fb09f38b6c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5047] close(6 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=25 /* 0.25 s */} --- [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5037] close(25 [pid 5036] close(15 [pid 5028] restart_syscall(<... resuming interrupted clone ...> [pid 5027] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5047] close(7 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] <... restart_syscall resumed>) = 0 [pid 5027] restart_syscall(<... resuming interrupted clone ...> [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5037] close(26 [pid 5036] close(16 [pid 5047] close(8 [pid 5027] <... restart_syscall resumed>) = 0 [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5047] close(9 [pid 5028] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5047] close(10 [pid 5028] <... openat resumed>) = 3 [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] newfstatat(3, "", [pid 5047] close(11 [pid 5028] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5037] close(27 [pid 5036] close(17 [pid 5047] close(12 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] getdents64(3, [pid 5027] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5037] close(28 [pid 5036] close(18 [pid 5028] <... getdents64 resumed>0x555555844730 /* 7 entries */, 32768) = 208 [pid 5027] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5047] close(13 [pid 5044] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5027] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] futex(0x7fb09f38b6dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5037] close(29 [pid 5036] close(19 [pid 5028] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5027] <... openat resumed>) = 3 [pid 5047] close(14 [pid 5044] <... futex resumed>) = 0 [pid 5037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5027] newfstatat(3, "", [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5037] exit_group(0 [pid 5036] close(20 [pid 5028] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5027] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5047] close(15 [pid 5044] <... mmap resumed>) = 0x7fb097e78000 [pid 5041] <... futex resumed>) = ? [pid 5037] <... exit_group resumed>) = ? [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] unlink("./0/cgroup.cpu" [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] mprotect(0x7fb097e79000, 131072, PROT_READ|PROT_WRITE [pid 5028] <... unlink resumed>) = 0 [pid 5027] getdents64(3, [pid 5047] close(16 [pid 5044] <... mprotect resumed>) = 0 [pid 5028] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5041] +++ exited with 0 +++ [pid 5037] +++ exited with 0 +++ [pid 5036] close(21 [pid 5028] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5047] close(17 [pid 5044] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5027] <... getdents64 resumed>0x555555844730 /* 7 entries */, 32768) = 208 [pid 5026] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb097e98990, parent_tid=0x7fb097e98990, exit_signal=0, stack=0x7fb097e78000, stack_size=0x20300, tls=0x7fb097e986c0} [pid 5036] close(22 [pid 5028] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5070 attached [pid 5047] close(18 [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] unlink("./0/binderfs" [pid 5027] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] rseq(0x7fb097e98fe0, 0x20, 0, 0x53053053 [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... clone3 resumed> => {parent_tid=[4]}, 88) = 4 [pid 5036] close(23 [pid 5028] <... unlink resumed>) = 0 [pid 5027] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... rseq resumed>) = 0 [pid 5047] close(19 [pid 5044] rt_sigprocmask(SIG_SETMASK, [], [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5027] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5070] set_robust_list(0x7fb097e989a0, 24 [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5036] close(24 [pid 5028] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5026] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... set_robust_list resumed>) = 0 [pid 5047] close(20 [pid 5044] futex(0x7fb09f38b6d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] newfstatat(AT_FDCWD, "./0/file0", [pid 5027] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5026] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] rt_sigprocmask(SIG_SETMASK, [], [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] <... futex resumed>) = 0 [pid 5036] close(25 [pid 5028] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5027] unlink("./0/cgroup.cpu" [pid 5026] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5047] close(21 [pid 5044] futex(0x7fb09f38b6dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] open("./file0", O_RDONLY [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] close(26 [pid 5028] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5027] <... unlink resumed>) = 0 [pid 5026] <... openat resumed>) = 3 [pid 5070] <... open resumed>) = 5 [pid 5047] close(22 [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5027] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5026] newfstatat(3, "", [pid 5070] futex(0x7fb09f38b6dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] close(27 [pid 5028] <... openat resumed>) = 4 [pid 5027] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... futex resumed>) = 1 [pid 5047] close(23 [pid 5044] <... futex resumed>) = 0 [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] newfstatat(4, "", [pid 5027] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5026] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5070] futex(0x7fb09f38b6d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] futex(0x7fb09f38b6d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5036] close(28 [pid 5028] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5027] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5047] close(24 [pid 5044] <... futex resumed>) = 0 [ 47.994778][ T5045] BTRFS info (device loop5): balance: start -d -m [ 48.017145][ T5045] BTRFS info (device loop5): relocating block group 6881280 flags data|metadata [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] getdents64(4, [pid 5027] unlink("./0/binderfs" [pid 5026] getdents64(3, [pid 5070] ioctl(5, FITRIM, {start=0, len=2885681152, minlen=0} [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5044] futex(0x7fb09f38b6dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5036] close(29 [pid 5028] <... getdents64 resumed>0x55555584c770 /* 2 entries */, 32768) = 48 [pid 5047] close(25 [pid 5028] getdents64(4, [pid 5027] <... unlink resumed>) = 0 [pid 5026] <... getdents64 resumed>0x555555844730 /* 7 entries */, 32768) = 208 [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] <... getdents64 resumed>0x55555584c770 /* 0 entries */, 32768) = 0 [pid 5047] close(26 [pid 5028] close(4 [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] <... close resumed>) = 0 [pid 5047] close(27 [pid 5028] rmdir("./0/file0" [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] <... rmdir resumed>) = 0 [pid 5027] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5047] close(28 [pid 5036] exit_group(0 [pid 5028] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5026] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5042] <... futex resumed>) = ? [pid 5036] <... exit_group resumed>) = ? [pid 5028] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5027] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5026] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5047] close(29 [pid 5028] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5028] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5047] exit_group(0 [pid 5028] unlink("./0/cgroup" [pid 5047] <... exit_group resumed>) = ? [pid 5028] <... unlink resumed>) = 0 [pid 5028] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5028] newfstatat(AT_FDCWD, "./0/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5042] +++ exited with 0 +++ [pid 5036] +++ exited with 0 +++ [pid 5028] unlink("./0/cgroup.net" [pid 5049] <... futex resumed>) = ? [pid 5028] <... unlink resumed>) = 0 [pid 5027] newfstatat(AT_FDCWD, "./0/file0", [pid 5026] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5028] getdents64(3, 0x555555844730 /* 0 entries */, 32768) = 0 [pid 5028] close(3) = 0 [pid 5028] rmdir("./0") = 0 [pid 5028] mkdir("./1", 0777 [pid 5049] +++ exited with 0 +++ [pid 5047] +++ exited with 0 +++ [pid 5030] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=32 /* 0.32 s */} --- [pid 5028] <... mkdir resumed>) = 0 [pid 5027] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5026] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5029] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=26 /* 0.26 s */} --- [pid 5028] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5027] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5026] unlink("./0/cgroup.cpu" [pid 5030] restart_syscall(<... resuming interrupted clone ...> [pid 5028] <... openat resumed>) = 3 [pid 5028] ioctl(3, LOOP_CLR_FD [pid 5027] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5028] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5028] close(3) = 0 [pid 5026] <... unlink resumed>) = 0 [pid 5028] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5071 attached [pid 5071] set_robust_list(0x5555558436a0, 24 [pid 5028] <... clone resumed>, child_tidptr=0x555555843690) = 4 [pid 5071] <... set_robust_list resumed>) = 0 [pid 5071] chdir("./1") = 0 [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5071] setpgid(0, 0) = 0 [pid 5071] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 5071] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 5071] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1000", 4) = 4 [pid 5071] close(3) = 0 [pid 5071] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5071] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5027] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5026] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... futex resumed>) = 0 [pid 5030] <... restart_syscall resumed>) = 0 [pid 5071] rt_sigaction(SIGRT_1, {sa_handler=0x7fb09f323990, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb09f314b40}, [pid 5027] <... openat resumed>) = 4 [pid 5026] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5029] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5027] newfstatat(4, "", [pid 5026] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5071] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5027] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5071] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5030] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5029] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5026] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5071] <... mmap resumed>) = 0x7fb09f299000 [pid 5027] getdents64(4, [pid 5071] mprotect(0x7fb09f29a000, 131072, PROT_READ|PROT_WRITE [pid 5030] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5029] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5026] unlink("./0/binderfs" [pid 5071] <... mprotect resumed>) = 0 [pid 5030] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5029] <... openat resumed>) = 3 [pid 5027] <... getdents64 resumed>0x55555584c770 /* 2 entries */, 32768) = 48 [pid 5071] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5030] <... openat resumed>) = 3 [pid 5029] newfstatat(3, "", [pid 5027] getdents64(4, [pid 5026] <... unlink resumed>) = 0 [pid 5071] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5030] newfstatat(3, "", [pid 5029] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5027] <... getdents64 resumed>0x55555584c770 /* 0 entries */, 32768) = 0 [pid 5026] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb09f2b9990, parent_tid=0x7fb09f2b9990, exit_signal=0, stack=0x7fb09f299000, stack_size=0x20300, tls=0x7fb09f2b96c0} [pid 5030] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5072 attached [pid 5029] getdents64(3, [pid 5027] close(4 [pid 5026] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] rseq(0x7fb09f2b9fe0, 0x20, 0, 0x53053053 [pid 5071] <... clone3 resumed> => {parent_tid=[5]}, 88) = 5 [pid 5072] <... rseq resumed>) = 0 [pid 5071] rt_sigprocmask(SIG_SETMASK, [], [pid 5072] set_robust_list(0x7fb09f2b99a0, 24 [pid 5071] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5072] <... set_robust_list resumed>) = 0 [pid 5071] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] rt_sigprocmask(SIG_SETMASK, [], [pid 5071] <... futex resumed>) = 0 [pid 5072] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5071] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5072] memfd_create("syzkaller", 0) = 3 [pid 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb096e99000 [pid 5030] getdents64(3, [pid 5029] <... getdents64 resumed>0x555555844730 /* 7 entries */, 32768) = 208 [pid 5027] <... close resumed>) = 0 [ 48.082786][ T5045] BTRFS info (device loop5): relocating block group 5242880 flags data|metadata [ 48.121719][ T12] BTRFS warning (device loop5): Skipping commit of aborted transaction. [pid 5026] newfstatat(AT_FDCWD, "./0/file0", [pid 5030] <... getdents64 resumed>0x555555844730 /* 7 entries */, 32768) = 208 [pid 5029] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5027] rmdir("./0/file0" [pid 5026] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5044] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5029] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5030] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5027] <... rmdir resumed>) = 0 [pid 5026] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5029] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5027] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5026] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5029] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5027] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5029] unlink("./0/cgroup.cpu" [pid 5026] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5027] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5030] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5029] <... unlink resumed>) = 0 [pid 5026] <... openat resumed>) = 4 [pid 5030] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5029] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5027] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5026] newfstatat(4, "", [pid 5029] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5027] unlink("./0/cgroup" [pid 5029] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5026] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5030] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5027] <... unlink resumed>) = 0 [pid 5026] getdents64(4, [pid 5030] unlink("./0/cgroup.cpu" [pid 5029] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5027] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5030] <... unlink resumed>) = 0 [pid 5029] unlink("./0/binderfs" [pid 5026] <... getdents64 resumed>0x55555584c770 /* 2 entries */, 32768) = 48 [pid 5030] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5027] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5030] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5029] <... unlink resumed>) = 0 [pid 5027] newfstatat(AT_FDCWD, "./0/cgroup.net", [pid 5026] getdents64(4, [pid 5030] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5029] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5030] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5027] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5026] <... getdents64 resumed>0x55555584c770 /* 0 entries */, 32768) = 0 [pid 5029] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5030] unlink("./0/binderfs" [pid 5027] unlink("./0/cgroup.net" [pid 5026] close(4 [pid 5030] <... unlink resumed>) = 0 [pid 5029] newfstatat(AT_FDCWD, "./0/file0", [pid 5030] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5027] <... unlink resumed>) = 0 [pid 5026] <... close resumed>) = 0 [pid 5030] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5029] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5027] getdents64(3, [pid 5030] newfstatat(AT_FDCWD, "./0/file0", [pid 5029] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5026] rmdir("./0/file0" [pid 5030] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5029] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5027] <... getdents64 resumed>0x555555844730 /* 0 entries */, 32768) = 0 [pid 5030] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5029] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5027] close(3 [pid 5026] <... rmdir resumed>) = 0 [pid 5030] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5029] <... openat resumed>) = 4 [pid 5027] <... close resumed>) = 0 [pid 5026] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5030] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5029] newfstatat(4, "", [pid 5027] rmdir("./0" [pid 5026] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5030] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5030] getdents64(4, 0x55555584c770 /* 2 entries */, 32768) = 48 [pid 5030] getdents64(4, [pid 5029] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5030] <... getdents64 resumed>0x55555584c770 /* 0 entries */, 32768) = 0 [pid 5030] close(4 [pid 5029] getdents64(4, [pid 5027] <... rmdir resumed>) = 0 [pid 5026] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5030] <... close resumed>) = 0 [pid 5030] rmdir("./0/file0") = 0 [pid 5029] <... getdents64 resumed>0x55555584c770 /* 2 entries */, 32768) = 48 [pid 5027] mkdir("./1", 0777 [pid 5026] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5030] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5029] getdents64(4, [pid 5027] <... mkdir resumed>) = 0 [pid 5026] unlink("./0/cgroup" [pid 5030] newfstatat(AT_FDCWD, "./0/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5030] unlink("./0/cgroup") = 0 [pid 5030] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5029] <... getdents64 resumed>0x55555584c770 /* 0 entries */, 32768) = 0 [pid 5030] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5027] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5030] newfstatat(AT_FDCWD, "./0/cgroup.net", [pid 5029] close(4 [pid 5026] <... unlink resumed>) = 0 [pid 5030] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5030] unlink("./0/cgroup.net") = 0 [pid 5030] getdents64(3, 0x555555844730 /* 0 entries */, 32768) = 0 [pid 5027] <... openat resumed>) = 3 [pid 5030] close(3 [pid 5029] <... close resumed>) = 0 [pid 5026] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5030] <... close resumed>) = 0 [pid 5030] rmdir("./0") = 0 [pid 5029] rmdir("./0/file0" [pid 5030] mkdir("./1", 0777 [pid 5027] ioctl(3, LOOP_CLR_FD [pid 5026] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5030] <... mkdir resumed>) = 0 [pid 5029] <... rmdir resumed>) = 0 [pid 5027] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5026] newfstatat(AT_FDCWD, "./0/cgroup.net", [ 48.137621][ T12] ------------[ cut here ]------------ [ 48.143240][ T12] BTRFS: Transaction aborted (error -28) [pid 5030] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5029] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5030] <... openat resumed>) = 3 [pid 5027] close(3 [pid 5026] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5030] ioctl(3, LOOP_CLR_FD [pid 5029] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5030] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5027] <... close resumed>) = 0 [pid 5030] close(3) = 0 [pid 5030] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5073 attached [pid 5073] set_robust_list(0x5555558436a0, 24 [pid 5030] <... clone resumed>, child_tidptr=0x555555843690) = 4 [pid 5073] <... set_robust_list resumed>) = 0 [pid 5073] chdir("./1") = 0 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5073] setpgid(0, 0) = 0 [pid 5073] symlink("/syzcgroup/unified/syz4", "./cgroup") = 0 [pid 5073] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu") = 0 [pid 5073] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "1000", 4) = 4 [pid 5073] close(3) = 0 [pid 5029] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5027] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5026] unlink("./0/cgroup.net" [pid 5073] symlink("/dev/binderfs", "./binderfs" [pid 5029] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5073] <... symlink resumed>) = 0 [pid 5026] <... unlink resumed>) = 0 [pid 5073] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5074 attached ) = 0 [pid 5029] unlink("./0/cgroup" [pid 5026] getdents64(3, [pid 5074] set_robust_list(0x5555558436a0, 24 [pid 5073] rt_sigaction(SIGRT_1, {sa_handler=0x7fb09f323990, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb09f314b40}, [pid 5074] <... set_robust_list resumed>) = 0 [pid 5073] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5029] <... unlink resumed>) = 0 [pid 5027] <... clone resumed>, child_tidptr=0x555555843690) = 4 [pid 5026] <... getdents64 resumed>0x555555844730 /* 0 entries */, 32768) = 0 [pid 5074] chdir("./1" [pid 5073] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5029] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5026] close(3 [pid 5074] <... chdir resumed>) = 0 [pid 5073] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5029] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5026] <... close resumed>) = 0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] <... prctl resumed>) = 0 [pid 5073] <... mmap resumed>) = 0x7fb09f299000 [pid 5029] newfstatat(AT_FDCWD, "./0/cgroup.net", [pid 5026] rmdir("./0" [pid 5074] setpgid(0, 0 [pid 5073] mprotect(0x7fb09f29a000, 131072, PROT_READ|PROT_WRITE [pid 5074] <... setpgid resumed>) = 0 [ 48.220795][ T12] WARNING: CPU: 1 PID: 12 at fs/btrfs/transaction.c:1983 btrfs_commit_transaction+0x3291/0x3fd0 [ 48.231333][ T12] Modules linked in: [ 48.235236][ T12] CPU: 1 PID: 12 Comm: kworker/u4:1 Not tainted 6.5.0-syzkaller #0 [ 48.243271][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 48.253384][ T12] Workqueue: events_unbound btrfs_async_reclaim_metadata_space [ 48.261007][ T12] RIP: 0010:btrfs_commit_transaction+0x3291/0x3fd0 [pid 5073] <... mprotect resumed>) = 0 [pid 5029] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5026] <... rmdir resumed>) = 0 [pid 5074] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5073] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5074] <... symlink resumed>) = 0 [pid 5073] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5074] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5073] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb09f2b9990, parent_tid=0x7fb09f2b9990, exit_signal=0, stack=0x7fb09f299000, stack_size=0x20300, tls=0x7fb09f2b96c0}./strace-static-x86_64: Process 5075 attached [pid 5074] <... symlink resumed>) = 0 [pid 5075] rseq(0x7fb09f2b9fe0, 0x20, 0, 0x53053053 [pid 5074] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5073] <... clone3 resumed> => {parent_tid=[5]}, 88) = 5 [pid 5075] <... rseq resumed>) = 0 [pid 5074] <... symlink resumed>) = 0 [pid 5073] rt_sigprocmask(SIG_SETMASK, [], [pid 5075] set_robust_list(0x7fb09f2b99a0, 24 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5075] <... set_robust_list resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5073] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] rt_sigprocmask(SIG_SETMASK, [], [pid 5074] write(3, "1000", 4 [pid 5073] <... futex resumed>) = 0 [pid 5075] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5074] <... write resumed>) = 4 [pid 5073] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5075] memfd_create("syzkaller", 0 [pid 5074] close(3 [pid 5075] <... memfd_create resumed>) = 3 [pid 5074] <... close resumed>) = 0 [pid 5075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... mmap resumed>) = 0x7fb096e99000 [pid 5074] <... symlink resumed>) = 0 [pid 5074] futex(0x7fb09f38b6cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... ioctl resumed>) = 0 [pid 5074] <... futex resumed>) = 0 [pid 5070] futex(0x7fb09f38b6dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] rt_sigaction(SIGRT_1, {sa_handler=0x7fb09f323990, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb09f314b40}, [pid 5070] <... futex resumed>) = 0 [pid 5074] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5070] futex(0x7fb09f38b6d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5074] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb09f299000 [pid 5074] mprotect(0x7fb09f29a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5074] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5074] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb09f2b9990, parent_tid=0x7fb09f2b9990, exit_signal=0, stack=0x7fb09f299000, stack_size=0x20300, tls=0x7fb09f2b96c0}./strace-static-x86_64: Process 5076 attached [pid 5076] rseq(0x7fb09f2b9fe0, 0x20, 0, 0x53053053 [pid 5074] <... clone3 resumed> => {parent_tid=[5]}, 88) = 5 [pid 5076] <... rseq resumed>) = 0 [pid 5074] rt_sigprocmask(SIG_SETMASK, [], [pid 5076] set_robust_list(0x7fb09f2b99a0, 24 [pid 5074] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5076] <... set_robust_list resumed>) = 0 [pid 5074] futex(0x7fb09f38b6c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] rt_sigprocmask(SIG_SETMASK, [], [pid 5074] <... futex resumed>) = 0 [pid 5076] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5074] futex(0x7fb09f38b6cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] memfd_create("syzkaller", 0) = 3 [pid 5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb096e99000 [ 48.267581][ T12] Code: fe be 02 00 00 00 4c 89 f7 e8 0b 2a ad 00 e9 a7 d2 ff ff e8 61 d4 13 fe 8b b5 18 ff ff ff 48 c7 c7 80 c7 b5 8a e8 4f 96 da fd <0f> 0b e9 4a e3 ff ff e8 43 d4 13 fe f0 83 44 24 fc 00 49 8d bc 24 [ 48.287267][ T12] RSP: 0018:ffffc90000117960 EFLAGS: 00010286 [ 48.293388][ T12] RAX: 0000000000000000 RBX: ffff88807ebc0000 RCX: 0000000000000000 [ 48.301547][ T12] RDX: ffff888016675940 RSI: ffffffff814ccc86 RDI: 0000000000000001 [ 48.309595][ T12] RBP: ffffc90000117ad0 R08: 0000000000000001 R09: 0000000000000000 [ 48.317618][ T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001 [ 48.325638][ T12] R13: ffff88807577f7c8 R14: ffff88807577f970 R15: ffff888029a68000 [ 48.333646][ T12] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 48.342694][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.349356][ T12] CR2: 00007ffc0e6c2338 CR3: 0000000075e3c000 CR4: 0000000000350ee0 [ 48.357384][ T12] Call Trace: [ 48.360710][ T12] [ 48.363663][ T12] ? __warn+0xe6/0x380 [pid 5044] close(3) = 0 [pid 5044] close(4) = 0 [pid 5044] close(5) = 0 [pid 5044] close(6) = -1 EBADF (Bad file descriptor) [pid 5044] close(7) = -1 EBADF (Bad file descriptor) [pid 5044] close(8) = -1 EBADF (Bad file descriptor) [pid 5044] close(9) = -1 EBADF (Bad file descriptor) [pid 5044] close(10) = -1 EBADF (Bad file descriptor) [pid 5044] close(11) = -1 EBADF (Bad file descriptor) [pid 5044] close(12) = -1 EBADF (Bad file descriptor) [pid 5044] close(13) = -1 EBADF (Bad file descriptor) [pid 5044] close(14) = -1 EBADF (Bad file descriptor) [pid 5044] close(15) = -1 EBADF (Bad file descriptor) [pid 5044] close(16) = -1 EBADF (Bad file descriptor) [pid 5044] close(17) = -1 EBADF (Bad file descriptor) [pid 5044] close(18) = -1 EBADF (Bad file descriptor) [pid 5044] close(19) = -1 EBADF (Bad file descriptor) [pid 5044] close(20) = -1 EBADF (Bad file descriptor) [pid 5044] close(21) = -1 EBADF (Bad file descriptor) [pid 5044] close(22) = -1 EBADF (Bad file descriptor) [pid 5044] close(23) = -1 EBADF (Bad file descriptor) [pid 5044] close(24) = -1 EBADF (Bad file descriptor) [pid 5044] close(25) = -1 EBADF (Bad file descriptor) [pid 5044] close(26) = -1 EBADF (Bad file descriptor) [pid 5044] close(27) = -1 EBADF (Bad file descriptor) [pid 5044] close(28) = -1 EBADF (Bad file descriptor) [pid 5044] close(29) = -1 EBADF (Bad file descriptor) [pid 5044] exit_group(0 [pid 5070] <... futex resumed>) = ? [pid 5044] <... exit_group resumed>) = ? [pid 5070] +++ exited with 0 +++ [ 48.367790][ T12] ? btrfs_commit_transaction+0x3291/0x3fd0 [ 48.373855][ T12] ? report_bug+0x3bc/0x580 [ 48.378730][ T12] ? handle_bug+0x3c/0x70 [ 48.383880][ T12] ? exc_invalid_op+0x17/0x40 [ 48.388589][ T12] ? asm_exc_invalid_op+0x1a/0x20 [ 48.394079][ T12] ? __warn_printk+0x1a6/0x350 [ 48.398896][ T12] ? btrfs_commit_transaction+0x3291/0x3fd0 [ 48.405202][ T12] ? spin_bug+0x1d0/0x1d0 [ 48.409606][ T12] ? lock_sync+0x190/0x190 [ 48.414482][ T12] ? create_pending_snapshots+0x2d0/0x2d0 [pid 5029] unlink("./0/cgroup.net") = 0 [pid 5029] getdents64(3, 0x555555844730 /* 0 entries */, 32768) = 0 [pid 5029] close(3) = 0 [pid 5029] rmdir("./0") = 0 [pid 5029] mkdir("./1", 0777) = 0 [pid 5029] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5029] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5029] close(3) = 0 [pid 5029] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555843690) = 4 [ 48.420305][ T12] ? start_transaction+0x2a5/0x14d0 [ 48.426261][ T12] flush_space+0x1ea/0xe80 [ 48.430769][ T12] ? reacquire_held_locks+0x4b0/0x4b0 [ 48.436175][ T12] ? find_held_lock+0x2d/0x110 [ 48.441094][ T12] ? btrfs_space_info_update_bytes_may_use+0x410/0x410 [ 48.447977][ T12] ? reacquire_held_locks+0x4b0/0x4b0 [ 48.453812][ T12] btrfs_async_reclaim_metadata_space+0x51c/0xa90 [ 48.460673][ T12] process_one_work+0xaa2/0x16f0 [ 48.465637][ T12] ? lock_sync+0x190/0x190 [ 48.470297][ T12] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 48.475715][ T12] ? spin_bug+0x1d0/0x1d0 [ 48.480217][ T12] worker_thread+0x687/0x1110 [ 48.484941][ T12] ? process_one_work+0x16f0/0x16f0 [ 48.490304][ T12] kthread+0x33a/0x430 [ 48.494395][ T12] ? kthread_complete_and_exit+0x40/0x40 [ 48.500378][ T12] ret_from_fork+0x2c/0x70 [ 48.504819][ T12] ? kthread_complete_and_exit+0x40/0x40 [ 48.510653][ T12] ret_from_fork_asm+0x11/0x20 [ 48.515552][ T12] [pid 5026] mkdir("./1", 0777) = 0 [pid 5026] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5026] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5026] close(3) = 0 [pid 5026] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555843690) = 4 [ 48.518585][ T12] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 48.525865][ T12] CPU: 1 PID: 12 Comm: kworker/u4:1 Not tainted 6.5.0-syzkaller #0 [ 48.533781][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 48.543845][ T12] Workqueue: events_unbound btrfs_async_reclaim_metadata_space [ 48.551414][ T12] Call Trace: [ 48.554704][ T12] [ 48.557651][ T12] dump_stack_lvl+0xd9/0x1b0 [ 48.562262][ T12] panic+0x6a4/0x750 [ 48.566170][ T12] ? panic_smp_self_stop+0xa0/0xa0 [ 48.571289][ T12] ? show_trace_log_lvl+0x29d/0x3c0 [ 48.576613][ T12] ? btrfs_commit_transaction+0x3291/0x3fd0 [ 48.582533][ T12] check_panic_on_warn+0xab/0xb0 [ 48.587489][ T12] __warn+0xf2/0x380 [ 48.591497][ T12] ? btrfs_commit_transaction+0x3291/0x3fd0 [ 48.597404][ T12] report_bug+0x3bc/0x580 [ 48.601750][ T12] handle_bug+0x3c/0x70 [ 48.605929][ T12] exc_invalid_op+0x17/0x40 [ 48.610453][ T12] asm_exc_invalid_op+0x1a/0x20 [ 48.615318][ T12] RIP: 0010:btrfs_commit_transaction+0x3291/0x3fd0 [ 48.621844][ T12] Code: fe be 02 00 00 00 4c 89 f7 e8 0b 2a ad 00 e9 a7 d2 ff ff e8 61 d4 13 fe 8b b5 18 ff ff ff 48 c7 c7 80 c7 b5 8a e8 4f 96 da fd <0f> 0b e9 4a e3 ff ff e8 43 d4 13 fe f0 83 44 24 fc 00 49 8d bc 24 [ 48.641442][ T12] RSP: 0018:ffffc90000117960 EFLAGS: 00010286 [ 48.647520][ T12] RAX: 0000000000000000 RBX: ffff88807ebc0000 RCX: 0000000000000000 [ 48.655479][ T12] RDX: ffff888016675940 RSI: ffffffff814ccc86 RDI: 0000000000000001 [ 48.663437][ T12] RBP: ffffc90000117ad0 R08: 0000000000000001 R09: 0000000000000000 [ 48.671408][ T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001 [ 48.679367][ T12] R13: ffff88807577f7c8 R14: ffff88807577f970 R15: ffff888029a68000 [ 48.687334][ T12] ? __warn_printk+0x1a6/0x350 [ 48.692097][ T12] ? spin_bug+0x1d0/0x1d0 [ 48.696437][ T12] ? lock_sync+0x190/0x190 [ 48.700855][ T12] ? create_pending_snapshots+0x2d0/0x2d0 [ 48.706573][ T12] ? start_transaction+0x2a5/0x14d0 [ 48.711775][ T12] flush_space+0x1ea/0xe80 [ 48.716185][ T12] ? reacquire_held_locks+0x4b0/0x4b0 [ 48.721639][ T12] ? find_held_lock+0x2d/0x110 [ 48.726400][ T12] ? btrfs_space_info_update_bytes_may_use+0x410/0x410 [ 48.733249][ T12] ? reacquire_held_locks+0x4b0/0x4b0 [ 48.738625][ T12] btrfs_async_reclaim_metadata_space+0x51c/0xa90 [ 48.745040][ T12] process_one_work+0xaa2/0x16f0 [ 48.749991][ T12] ? lock_sync+0x190/0x190 [ 48.754427][ T12] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 48.759803][ T12] ? spin_bug+0x1d0/0x1d0 [ 48.764136][ T12] worker_thread+0x687/0x1110 [ 48.768813][ T12] ? process_one_work+0x16f0/0x16f0 [ 48.774002][ T12] kthread+0x33a/0x430 [ 48.778063][ T12] ? kthread_complete_and_exit+0x40/0x40 [ 48.783687][ T12] ret_from_fork+0x2c/0x70 [ 48.788105][ T12] ? kthread_complete_and_exit+0x40/0x40 [ 48.793726][ T12] ret_from_fork_asm+0x11/0x20 [ 48.798495][ T12] [ 48.802353][ T12] Kernel Offset: disabled [ 48.806762][ T12] Rebooting in 86400 seconds..