./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor864800459 <...> [ 29.104516][ T3187] 8021q: adding VLAN 0 to HW filter on device bond0 [ 29.124634][ T3187] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 38.424462][ T27] kauditd_printk_skb: 37 callbacks suppressed [ 38.424479][ T27] audit: type=1400 audit(1656585537.117:73): avc: denied { transition } for pid=3394 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 38.453519][ T27] audit: type=1400 audit(1656585537.127:74): avc: denied { write } for pid=3394 comm="sh" path="pipe:[27517]" dev="pipefs" ino=27517 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.1.81' (ECDSA) to the list of known hosts. execve("./syz-executor864800459", ["./syz-executor864800459"], 0x7ffe951dc7a0 /* 10 vars */) = 0 brk(NULL) = 0x555556944000 brk(0x555556944c40) = 0x555556944c40 arch_prctl(ARCH_SET_FS, 0x555556944300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x5555569445d0) = 3607 set_robust_list(0x5555569445e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7fe4fb934730, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fe4fb934e00}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7fe4fb9347d0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fe4fb934e00}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor864800459", 4096) = 27 brk(0x555556965c40) = 0x555556965c40 brk(0x555556966000) = 0x555556966000 mprotect(0x7fe4fb9f6000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555569445d0) = 3608 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555569445d0) = 3609 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555569445d0) = 3610 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555569445d0) = 3611 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555569445d0) = 3612 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555569445d0) = 3613 ./strace-static-x86_64: Process 3608 attached [pid 3608] set_robust_list(0x5555569445e0, 24) = 0 [pid 3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 3611 attached [pid 3611] set_robust_list(0x5555569445e0, 24) = 0 [pid 3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3608] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3613 attached [pid 3613] set_robust_list(0x5555569445e0, 24 [pid 3611] <... openat resumed>) = 3 [pid 3613] <... set_robust_list resumed>) = 0 [pid 3613] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3608] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3611] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3613] <... openat resumed>) = 3 [pid 3611] close(3) = 0 [pid 3608] close(3) = 0 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3613] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3613] close(3) = 0 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3608] <... clone resumed>, child_tidptr=0x5555569445d0) = 3614 [pid 3611] <... clone resumed>, child_tidptr=0x5555569445d0) = 3615 [pid 3613] <... clone resumed>, child_tidptr=0x5555569445d0) = 3616 ./strace-static-x86_64: Process 3614 attached ./strace-static-x86_64: Process 3616 attached [pid 3614] set_robust_list(0x5555569445e0, 24 [pid 3616] set_robust_list(0x5555569445e0, 24 [pid 3614] <... set_robust_list resumed>) = 0 [pid 3614] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] <... set_robust_list resumed>) = 0 [pid 3616] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3614] <... prctl resumed>) = 0 [pid 3616] <... prctl resumed>) = 0 [pid 3616] setpgid(0, 0 [pid 3614] setpgid(0, 0 [pid 3616] <... setpgid resumed>) = 0 [pid 3614] <... setpgid resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] <... openat resumed>) = 3 [pid 3614] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3615 attached ./strace-static-x86_64: Process 3612 attached ./strace-static-x86_64: Process 3610 attached ./strace-static-x86_64: Process 3609 attached [pid 3616] write(3, "1000", 4) = 4 [pid 3615] set_robust_list(0x5555569445e0, 24 [pid 3612] set_robust_list(0x5555569445e0, 24 [pid 3616] close(3 [pid 3615] <... set_robust_list resumed>) = 0 [pid 3614] write(3, "1000", 4 [pid 3612] <... set_robust_list resumed>) = 0 [pid 3610] set_robust_list(0x5555569445e0, 24 [pid 3609] set_robust_list(0x5555569445e0, 24 [pid 3616] <... close resumed>) = 0 [pid 3615] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3614] <... write resumed>) = 4 [pid 3616] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] <... prctl resumed>) = 0 [pid 3614] close(3 [pid 3612] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3610] <... set_robust_list resumed>) = 0 [pid 3609] <... set_robust_list resumed>) = 0 [pid 3616] <... futex resumed>) = 0 [pid 3615] setpgid(0, 0 [pid 3614] <... close resumed>) = 0 [pid 3612] <... openat resumed>) = 3 [pid 3616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3615] <... setpgid resumed>) = 0 [pid 3614] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] <... mmap resumed>) = 0x7fe4fb904000 [pid 3615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3614] <... futex resumed>) = 0 [pid 3612] ioctl(3, LOOP_CLR_FD [pid 3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3616] mprotect(0x7fe4fb905000, 131072, PROT_READ|PROT_WRITE [pid 3615] <... openat resumed>) = 3 [pid 3614] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3612] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3610] <... openat resumed>) = 3 [pid 3616] <... mprotect resumed>) = 0 [pid 3615] write(3, "1000", 4 [pid 3614] <... mmap resumed>) = 0x7fe4fb904000 [pid 3612] close(3 [pid 3610] ioctl(3, LOOP_CLR_FD [pid 3609] <... openat resumed>) = 3 [pid 3616] clone(child_stack=0x7fe4fb9243f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3615] <... write resumed>) = 4 [ 48.468389][ T27] audit: type=1400 audit(1656585547.167:75): avc: denied { execmem } for pid=3607 comm="syz-executor864" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [pid 3614] mprotect(0x7fe4fb905000, 131072, PROT_READ|PROT_WRITE [pid 3612] <... close resumed>) = 0 [pid 3615] close(3 [pid 3614] <... mprotect resumed>) = 0 [pid 3610] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3609] ioctl(3, LOOP_CLR_FD [pid 3616] <... clone resumed>, parent_tid=[3617], tls=0x7fe4fb924700, child_tidptr=0x7fe4fb9249d0) = 3617 [pid 3614] clone(child_stack=0x7fe4fb9243f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3616] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3614] <... clone resumed>, parent_tid=[3618], tls=0x7fe4fb924700, child_tidptr=0x7fe4fb9249d0) = 3618 [pid 3616] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3614] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3614] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3617 attached [pid 3617] set_robust_list(0x7fe4fb9249e0, 24) = 0 [pid 3617] memfd_create("syzkaller", 0) = 3 [pid 3617] ftruncate(3, 139264) = 0 [pid 3617] pwrite64(3, "\x00\x04\x00\x00\x00\x00\x01\x00\x01\x00\x44\x00\x00\x00\x00\x00\xff\xff\xff\x7f\x80\x00\x00\x00\x5a\x4d", 26, 1024) = 26 [pid 3617] pwrite64(3, "\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"..., 2214, 2176) = 2214 [pid 3617] pwrite64(3, NULL, 0, 69632) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3617] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 3618 attached [pid 3615] <... close resumed>) = 0 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3610] close(3 [pid 3609] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3618] set_robust_list(0x7fe4fb9249e0, 24 [pid 3615] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3618] <... set_robust_list resumed>) = 0 [pid 3615] <... futex resumed>) = 0 [pid 3612] <... clone resumed>, child_tidptr=0x5555569445d0) = 3619 [pid 3610] <... close resumed>) = 0 [pid 3609] close(3 [pid 3618] memfd_create("syzkaller", 0 [pid 3615] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3609] <... close resumed>) = 0 [pid 3618] <... memfd_create resumed>) = 3 [pid 3615] <... mmap resumed>) = 0x7fe4fb904000 [pid 3615] mprotect(0x7fe4fb905000, 131072, PROT_READ|PROT_WRITE [pid 3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] ftruncate(3, 139264 [pid 3615] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 3619 attached [pid 3610] <... clone resumed>, child_tidptr=0x5555569445d0) = 3620 [pid 3619] set_robust_list(0x5555569445e0, 24 [pid 3618] <... ftruncate resumed>) = 0 [pid 3615] clone(child_stack=0x7fe4fb9243f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3619] <... set_robust_list resumed>) = 0 [pid 3619] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3620 attached ) = 0 [pid 3620] set_robust_list(0x5555569445e0, 24 [pid 3619] setpgid(0, 0 [pid 3620] <... set_robust_list resumed>) = 0 [pid 3619] <... setpgid resumed>) = 0 [pid 3620] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... prctl resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3620] setpgid(0, 0 [pid 3619] write(3, "1000", 4 [pid 3620] <... setpgid resumed>) = 0 [pid 3619] <... write resumed>) = 4 [pid 3620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] close(3 [pid 3620] <... openat resumed>) = 3 [pid 3619] <... close resumed>) = 0 [pid 3620] write(3, "1000", 4 [pid 3619] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 3621 attached [pid 3620] <... write resumed>) = 4 [pid 3619] <... futex resumed>) = 0 [ 48.521107][ T27] audit: type=1400 audit(1656585547.177:76): avc: denied { read write } for pid=3608 comm="syz-executor864" name="loop0" dev="devtmpfs" ino=644 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 48.537778][ T3617] loop5: detected capacity change from 0 to 272 [ 48.560398][ T2976] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [pid 3618] pwrite64(3, "\x00\x04\x00\x00\x00\x00\x01\x00\x01\x00\x44\x00\x00\x00\x00\x00\xff\xff\xff\x7f\x80\x00\x00\x00\x5a\x4d", 26, 1024 [pid 3615] <... clone resumed>, parent_tid=[3622], tls=0x7fe4fb924700, child_tidptr=0x7fe4fb9249d0) = 3622 [pid 3609] <... clone resumed>, child_tidptr=0x5555569445d0) = 3621 [pid 3620] close(3 [pid 3619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 3622 attached [pid 3620] <... close resumed>) = 0 [pid 3619] <... mmap resumed>) = 0x7fe4fb904000 [pid 3622] set_robust_list(0x7fe4fb9249e0, 24 [pid 3620] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3619] mprotect(0x7fe4fb905000, 131072, PROT_READ|PROT_WRITE [pid 3622] <... set_robust_list resumed>) = 0 [pid 3620] <... futex resumed>) = 0 [pid 3619] <... mprotect resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3622] futex(0x7fe4fb9fc3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3619] clone(child_stack=0x7fe4fb9243f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3617] mkdir("./file0", 0777 [pid 3621] set_robust_list(0x5555569445e0, 24 [pid 3620] <... mmap resumed>) = 0x7fe4fb904000 [pid 3618] <... pwrite64 resumed>) = 26 [pid 3617] <... mkdir resumed>) = 0 [pid 3615] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3620] mprotect(0x7fe4fb905000, 131072, PROT_READ|PROT_WRITE [pid 3619] <... clone resumed>, parent_tid=[3623], tls=0x7fe4fb924700, child_tidptr=0x7fe4fb9249d0) = 3623 [pid 3620] <... mprotect resumed>) = 0 [pid 3619] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3620] clone(child_stack=0x7fe4fb9243f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3619] <... futex resumed>) = 0 [pid 3619] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3620] <... clone resumed>, parent_tid=[3624], tls=0x7fe4fb924700, child_tidptr=0x7fe4fb9249d0) = 3624 [pid 3617] mount("/dev/loop5", "./file0", "minix", 0, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" [pid 3620] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 3623 attached [pid 3620] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3623] set_robust_list(0x7fe4fb9249e0, 24) = 0 [pid 3623] memfd_create("syzkaller", 0./strace-static-x86_64: Process 3624 attached ) = 3 [pid 3624] set_robust_list(0x7fe4fb9249e0, 24 [pid 3623] ftruncate(3, 139264 [pid 3624] <... set_robust_list resumed>) = 0 [pid 3623] <... ftruncate resumed>) = 0 [pid 3624] memfd_create("syzkaller", 0 [pid 3623] pwrite64(3, "\x00\x04\x00\x00\x00\x00\x01\x00\x01\x00\x44\x00\x00\x00\x00\x00\xff\xff\xff\x7f\x80\x00\x00\x00\x5a\x4d", 26, 1024 [pid 3624] <... memfd_create resumed>) = 3 [pid 3623] <... pwrite64 resumed>) = 26 [pid 3624] ftruncate(3, 139264 [pid 3623] pwrite64(3, "\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"..., 2214, 2176 [pid 3624] <... ftruncate resumed>) = 0 [pid 3623] <... pwrite64 resumed>) = 2214 [pid 3624] pwrite64(3, "\x00\x04\x00\x00\x00\x00\x01\x00\x01\x00\x44\x00\x00\x00\x00\x00\xff\xff\xff\x7f\x80\x00\x00\x00\x5a\x4d", 26, 1024 [pid 3623] pwrite64(3, NULL, 0, 69632 [pid 3624] <... pwrite64 resumed>) = 26 [pid 3623] <... pwrite64 resumed>) = 0 [pid 3624] pwrite64(3, "\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"..., 2214, 2176 [pid 3623] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3624] <... pwrite64 resumed>) = 2214 [pid 3623] <... openat resumed>) = 4 [pid 3624] pwrite64(3, NULL, 0, 69632 [pid 3623] ioctl(4, LOOP_SET_FD, 3 [pid 3624] <... pwrite64 resumed>) = 0 [pid 3622] <... futex resumed>) = 0 [pid 3621] <... set_robust_list resumed>) = 0 [pid 3618] pwrite64(3, "\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"..., 2214, 2176 [pid 3615] <... futex resumed>) = 1 [pid 3624] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3623] <... ioctl resumed>) = 0 [pid 3622] memfd_create("syzkaller", 0 [pid 3621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] <... pwrite64 resumed>) = 2214 [pid 3615] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3624] <... openat resumed>) = 4 [pid 3623] mkdir("./file0", 0777 [pid 3622] <... memfd_create resumed>) = 3 [ 48.571548][ T2976] Buffer I/O error on dev loop5, logical block 0, async page read [ 48.580639][ T27] audit: type=1400 audit(1656585547.177:77): avc: denied { open } for pid=3608 comm="syz-executor864" path="/dev/loop0" dev="devtmpfs" ino=644 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 48.602187][ T3623] loop4: detected capacity change from 0 to 272 [pid 3621] <... prctl resumed>) = 0 [pid 3618] pwrite64(3, NULL, 0, 69632 [pid 3624] ioctl(4, LOOP_SET_FD, 3 [pid 3623] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3622] ftruncate(3, 139264 [pid 3624] <... ioctl resumed>) = 0 [pid 3623] mount("/dev/loop4", "./file0", "minix", 0, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" [pid 3622] <... ftruncate resumed>) = 0 [pid 3621] setpgid(0, 0 [pid 3618] <... pwrite64 resumed>) = 0 [pid 3616] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3622] pwrite64(3, "\x00\x04\x00\x00\x00\x00\x01\x00\x01\x00\x44\x00\x00\x00\x00\x00\xff\xff\xff\x7f\x80\x00\x00\x00\x5a\x4d", 26, 1024 [pid 3616] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3622] <... pwrite64 resumed>) = 26 [pid 3616] <... futex resumed>) = 0 [pid 3614] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3622] pwrite64(3, "\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"..., 2214, 2176 [pid 3616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3614] <... futex resumed>) = 0 [pid 3622] <... pwrite64 resumed>) = 2214 [pid 3621] <... setpgid resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3616] <... mmap resumed>) = 0x7fe4fb8e3000 [pid 3614] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3624] mkdir("./file0", 0777 [pid 3623] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3622] pwrite64(3, NULL, 0, 69632 [pid 3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] <... openat resumed>) = 4 [pid 3617] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3616] mprotect(0x7fe4fb8e4000, 131072, PROT_READ|PROT_WRITE [pid 3614] <... mmap resumed>) = 0x7fe4fb8e3000 [pid 3624] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3623] ioctl(4, LOOP_CLR_FD [pid 3622] <... pwrite64 resumed>) = 0 [pid 3621] <... openat resumed>) = 3 [pid 3618] ioctl(4, LOOP_SET_FD, 3 [pid 3617] ioctl(4, LOOP_CLR_FD [pid 3616] <... mprotect resumed>) = 0 [pid 3614] mprotect(0x7fe4fb8e4000, 131072, PROT_READ|PROT_WRITE [pid 3624] mount("/dev/loop2", "./file0", "minix", 0, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" [pid 3622] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3621] write(3, "1000", 4 [pid 3616] clone(child_stack=0x7fe4fb9033f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3614] <... mprotect resumed>) = 0 [pid 3622] <... openat resumed>) = 4 [ 48.617695][ T3624] loop2: detected capacity change from 0 to 272 [ 48.618013][ T2976] loop5: unable to read partition table [ 48.646759][ T3618] loop0: detected capacity change from 0 to 272 [pid 3621] <... write resumed>) = 4 [pid 3614] clone(child_stack=0x7fe4fb9033f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3622] ioctl(4, LOOP_SET_FD, 3 [pid 3621] close(3 [pid 3616] <... clone resumed>, parent_tid=[3625], tls=0x7fe4fb903700, child_tidptr=0x7fe4fb9039d0) = 3625 [pid 3618] <... ioctl resumed>) = 0 [pid 3616] futex(0x7fe4fb9fc3f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] <... clone resumed>, parent_tid=[3626], tls=0x7fe4fb903700, child_tidptr=0x7fe4fb9039d0) = 3626 [pid 3616] <... futex resumed>) = 0 [pid 3614] futex(0x7fe4fb9fc3f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3616] futex(0x7fe4fb9fc3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] <... futex resumed>) = 0 [pid 3614] futex(0x7fe4fb9fc3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3625 attached [pid 3625] set_robust_list(0x7fe4fb9039e0, 24./strace-static-x86_64: Process 3626 attached ) = 0 [pid 3626] set_robust_list(0x7fe4fb9039e0, 24 [pid 3625] mount("/dev/loop5", "./file0", "minix", 0, NULL [pid 3619] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3626] <... set_robust_list resumed>) = 0 [pid 3620] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3619] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3626] mount("/dev/loop0", "./file0", "minix", 0, NULL [pid 3622] <... ioctl resumed>) = 0 [pid 3620] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3619] <... futex resumed>) = 0 [pid 3622] mkdir("./file0", 0777 [pid 3621] <... close resumed>) = 0 [pid 3620] <... futex resumed>) = 0 [pid 3619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3618] mkdir("./file0", 0777 [pid 3615] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3622] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3621] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3619] <... mmap resumed>) = 0x7fe4fb8e3000 [pid 3618] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3626] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3622] mount("/dev/loop3", "./file0", "minix", 0, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" [pid 3621] <... futex resumed>) = 0 [pid 3620] <... mmap resumed>) = 0x7fe4fb8e3000 [pid 3623] <... ioctl resumed>) = 0 [pid 3619] mprotect(0x7fe4fb8e4000, 131072, PROT_READ|PROT_WRITE [pid 3618] mount("/dev/loop0", "./file0", "minix", 0, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" [pid 3615] <... futex resumed>) = 0 [pid 3626] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] close(4 [pid 3622] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3621] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3620] mprotect(0x7fe4fb8e4000, 131072, PROT_READ|PROT_WRITE [pid 3619] <... mprotect resumed>) = 0 [pid 3616] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3614] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3626] <... futex resumed>) = 0 [pid 3623] <... close resumed>) = 0 [pid 3622] ioctl(4, LOOP_CLR_FD [pid 3621] <... mmap resumed>) = 0x7fe4fb904000 [pid 3620] <... mprotect resumed>) = 0 [pid 3619] clone(child_stack=0x7fe4fb9033f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3618] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3615] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3626] futex(0x7fe4fb9fc3f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3623] close(3 [pid 3622] <... ioctl resumed>) = 0 [ 48.653542][ T27] audit: type=1400 audit(1656585547.177:78): avc: denied { ioctl } for pid=3608 comm="syz-executor864" path="/dev/loop0" dev="devtmpfs" ino=644 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 48.681387][ T27] audit: type=1400 audit(1656585547.287:79): avc: denied { mounton } for pid=3616 comm="syz-executor864" path="/root/file0" dev="sda1" ino=1138 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 48.704419][ T3622] loop3: detected capacity change from 0 to 272 [pid 3621] mprotect(0x7fe4fb905000, 131072, PROT_READ|PROT_WRITE [pid 3620] clone(child_stack=0x7fe4fb9033f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3618] ioctl(4, LOOP_CLR_FD [pid 3615] <... mmap resumed>) = 0x7fe4fb8e3000 ./strace-static-x86_64: Process 3628 attached [pid 3623] <... close resumed>) = 0 [pid 3622] close(4 [pid 3619] <... clone resumed>, parent_tid=[3628], tls=0x7fe4fb903700, child_tidptr=0x7fe4fb9039d0) = 3628 [pid 3623] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3622] <... close resumed>) = 0 [pid 3620] <... clone resumed>, parent_tid=[3629], tls=0x7fe4fb903700, child_tidptr=0x7fe4fb9039d0) = 3629 [pid 3619] futex(0x7fe4fb9fc3f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... futex resumed>) = 0 [pid 3622] close(3 [pid 3620] futex(0x7fe4fb9fc3f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3619] <... futex resumed>) = 0 ./strace-static-x86_64: Process 3629 attached [pid 3623] futex(0x7fe4fb9fc3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3622] <... close resumed>) = 0 [pid 3620] <... futex resumed>) = 0 [pid 3619] futex(0x7fe4fb9fc3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3629] set_robust_list(0x7fe4fb9039e0, 24 [pid 3622] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3620] futex(0x7fe4fb9fc3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3629] <... set_robust_list resumed>) = 0 [pid 3622] <... futex resumed>) = 0 [pid 3629] mount("/dev/loop2", "./file0", "minix", 0, NULL [pid 3622] futex(0x7fe4fb9fc3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3621] <... mprotect resumed>) = 0 [pid 3615] mprotect(0x7fe4fb8e4000, 131072, PROT_READ|PROT_WRITE [pid 3628] set_robust_list(0x7fe4fb9039e0, 24 [pid 3621] clone(child_stack=0x7fe4fb9243f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3615] <... mprotect resumed>) = 0 [pid 3628] <... set_robust_list resumed>) = 0 [pid 3615] clone(child_stack=0x7fe4fb9033f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3628] mount("/dev/loop4", "./file0", "minix", 0, NULL [pid 3621] <... clone resumed>, parent_tid=[3630], tls=0x7fe4fb924700, child_tidptr=0x7fe4fb9249d0) = 3630 [pid 3621] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] <... clone resumed>, parent_tid=[3631], tls=0x7fe4fb903700, child_tidptr=0x7fe4fb9039d0) = 3631 [pid 3621] <... futex resumed>) = 0 [pid 3615] futex(0x7fe4fb9fc3f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3618] <... ioctl resumed>) = 0 [pid 3615] <... futex resumed>) = 0 [pid 3618] close(4 [pid 3615] futex(0x7fe4fb9fc3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3631 attached [pid 3618] <... close resumed>) = 0 [pid 3631] set_robust_list(0x7fe4fb9039e0, 24 [pid 3618] close(3) = 0 [pid 3631] <... set_robust_list resumed>) = 0 [pid 3631] mount("/dev/loop3", "./file0", "minix", 0, NULL [pid 3625] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3618] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3625] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3618] <... futex resumed>) = 0 ./strace-static-x86_64: Process 3630 attached [pid 3625] <... futex resumed>) = 0 [pid 3618] futex(0x7fe4fb9fc3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3630] set_robust_list(0x7fe4fb9249e0, 24 [pid 3625] futex(0x7fe4fb9fc3f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3614] exit_group(0 [pid 3630] <... set_robust_list resumed>) = 0 [pid 3626] <... futex resumed>) = ? [ 48.745614][ T27] audit: type=1400 audit(1656585547.337:80): avc: denied { mount } for pid=3616 comm="syz-executor864" name="/" dev="loop5" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 48.776683][ T3628] I/O error, dev loop4, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [pid 3618] <... futex resumed>) = ? [pid 3614] <... exit_group resumed>) = ? [pid 3630] memfd_create("syzkaller", 0 [pid 3626] +++ exited with 0 +++ [pid 3620] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3619] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3618] +++ exited with 0 +++ [pid 3614] +++ exited with 0 +++ [pid 3630] <... memfd_create resumed>) = 3 [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3614, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3630] ftruncate(3, 139264) = 0 [pid 3630] pwrite64(3, "\x00\x04\x00\x00\x00\x00\x01\x00\x01\x00\x44\x00\x00\x00\x00\x00\xff\xff\xff\x7f\x80\x00\x00\x00\x5a\x4d", 26, 1024 [pid 3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3630] <... pwrite64 resumed>) = 26 [pid 3608] <... openat resumed>) = 3 [pid 3630] pwrite64(3, "\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"..., 2214, 2176 [pid 3608] ioctl(3, LOOP_CLR_FD [pid 3630] <... pwrite64 resumed>) = 2214 [pid 3629] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3608] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3630] pwrite64(3, NULL, 0, 69632 [pid 3629] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] close(3 [pid 3630] <... pwrite64 resumed>) = 0 [pid 3629] <... futex resumed>) = 0 [pid 3608] <... close resumed>) = 0 [pid 3630] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3629] futex(0x7fe4fb9fc3f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3630] <... openat resumed>) = 4 [pid 3624] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3630] ioctl(4, LOOP_SET_FD, 3 [pid 3624] ioctl(4, LOOP_CLR_FD [pid 3608] <... clone resumed>, child_tidptr=0x5555569445d0) = 3633 [pid 3628] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3631] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3628] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) ./strace-static-x86_64: Process 3633 attached [pid 3631] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3628] <... futex resumed>) = 0 [pid 3619] exit_group(0 [pid 3617] close(4 [pid 3615] exit_group(0 [pid 3633] set_robust_list(0x5555569445e0, 24 [pid 3631] <... futex resumed>) = ? [pid 3623] <... futex resumed>) = ? [pid 3622] <... futex resumed>) = ? [pid 3619] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3615] <... exit_group resumed>) = ? [pid 3633] <... set_robust_list resumed>) = 0 [pid 3631] +++ exited with 0 +++ [pid 3630] <... ioctl resumed>) = 0 [pid 3628] +++ exited with 0 +++ [pid 3623] +++ exited with 0 +++ [pid 3622] +++ exited with 0 +++ [pid 3619] +++ exited with 0 +++ [pid 3617] close(3 [pid 3633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3630] mkdir("./file0", 0777 [pid 3617] <... close resumed>) = 0 [pid 3615] +++ exited with 0 +++ [pid 3633] <... prctl resumed>) = 0 [pid 3630] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3619, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3633] setpgid(0, 0 [pid 3630] mount("/dev/loop1", "./file0", "minix", 0, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" [pid 3617] <... futex resumed>) = 0 [pid 3616] exit_group(0 [pid 3612] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3615, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3633] <... setpgid resumed>) = 0 [pid 3630] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3625] <... futex resumed>) = ? [pid 3616] <... exit_group resumed>) = ? [pid 3612] <... openat resumed>) = 3 [pid 3611] restart_syscall(<... resuming interrupted clone ...> [pid 3633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3630] ioctl(4, LOOP_CLR_FD [pid 3625] +++ exited with 0 +++ [pid 3617] +++ exited with 0 +++ [pid 3616] +++ exited with 0 +++ [pid 3612] ioctl(3, LOOP_CLR_FD [pid 3611] <... restart_syscall resumed>) = 0 [pid 3633] <... openat resumed>) = 3 [pid 3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3616, si_uid=0, si_status=0, si_utime=0, si_stime=6} --- [pid 3612] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3633] write(3, "1000", 4 [pid 3612] close(3 [pid 3633] <... write resumed>) = 4 [pid 3612] <... close resumed>) = 0 [pid 3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3633] close(3 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3611] <... openat resumed>) = 3 [pid 3633] <... close resumed>) = 0 [pid 3611] ioctl(3, LOOP_CLR_FD [ 48.803246][ T3628] MINIX-fs: unable to read superblock [ 48.809883][ T3631] I/O error, dev loop3, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 48.819473][ T3617] VFS: busy inodes on changed media loop5 [ 48.824978][ T3631] MINIX-fs: unable to read superblock [ 48.831367][ T3630] loop1: detected capacity change from 0 to 272 [pid 3633] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3611] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3633] <... futex resumed>) = 0 [pid 3613] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3612] <... clone resumed>, child_tidptr=0x5555569445d0) = 3635 [pid 3611] close(3 [pid 3633] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3624] <... ioctl resumed>) = 0 [pid 3621] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3613] <... openat resumed>) = 3 [pid 3611] <... close resumed>) = 0 [pid 3633] <... mmap resumed>) = 0x7fe4fb904000 [pid 3624] close(4 [pid 3621] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3613] ioctl(3, LOOP_CLR_FD [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3633] mprotect(0x7fe4fb905000, 131072, PROT_READ|PROT_WRITE [pid 3624] <... close resumed>) = 0 [pid 3621] <... futex resumed>) = 0 [pid 3613] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 3635 attached [pid 3633] <... mprotect resumed>) = 0 [pid 3624] close(3 [pid 3621] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3613] close(3 [pid 3611] <... clone resumed>, child_tidptr=0x5555569445d0) = 3636 [pid 3635] set_robust_list(0x5555569445e0, 24 [pid 3633] clone(child_stack=0x7fe4fb9243f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3624] <... close resumed>) = 0 [pid 3621] <... mmap resumed>) = 0x7fe4fb8e3000 [pid 3613] <... close resumed>) = 0 [pid 3635] <... set_robust_list resumed>) = 0 [pid 3624] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] mprotect(0x7fe4fb8e4000, 131072, PROT_READ|PROT_WRITE [pid 3620] exit_group(0 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3636 attached [pid 3635] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3633] <... clone resumed>, parent_tid=[3637], tls=0x7fe4fb924700, child_tidptr=0x7fe4fb9249d0) = 3637 [pid 3629] <... futex resumed>) = ? [pid 3624] <... futex resumed>) = ? [pid 3621] <... mprotect resumed>) = 0 [pid 3620] <... exit_group resumed>) = ? [pid 3636] set_robust_list(0x5555569445e0, 24 [pid 3635] <... prctl resumed>) = 0 [pid 3633] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3629] +++ exited with 0 +++ [pid 3624] +++ exited with 0 +++ [pid 3621] clone(child_stack=0x7fe4fb9033f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3620] +++ exited with 0 +++ [pid 3613] <... clone resumed>, child_tidptr=0x5555569445d0) = 3638 ./strace-static-x86_64: Process 3638 attached ./strace-static-x86_64: Process 3637 attached [pid 3636] <... set_robust_list resumed>) = 0 [pid 3635] setpgid(0, 0 [pid 3633] <... futex resumed>) = 0 [pid 3630] <... ioctl resumed>) = 0 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3620, si_uid=0, si_status=0, si_utime=0, si_stime=6} --- [pid 3638] set_robust_list(0x5555569445e0, 24 [pid 3637] set_robust_list(0x7fe4fb9249e0, 24 [pid 3636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3635] <... setpgid resumed>) = 0 [pid 3633] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3630] close(4 [pid 3621] <... clone resumed>, parent_tid=[3639], tls=0x7fe4fb903700, child_tidptr=0x7fe4fb9039d0) = 3639 [pid 3638] <... set_robust_list resumed>) = 0 [pid 3637] <... set_robust_list resumed>) = 0 [pid 3636] <... prctl resumed>) = 0 [pid 3635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3630] <... close resumed>) = 0 [pid 3621] futex(0x7fe4fb9fc3f8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 3639 attached [pid 3638] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3637] memfd_create("syzkaller", 0 [pid 3636] setpgid(0, 0 [pid 3635] <... openat resumed>) = 3 [pid 3630] close(3 [pid 3621] <... futex resumed>) = 0 [pid 3639] set_robust_list(0x7fe4fb9039e0, 24 [pid 3638] <... prctl resumed>) = 0 [pid 3637] <... memfd_create resumed>) = 3 [pid 3636] <... setpgid resumed>) = 0 [pid 3635] write(3, "1000", 4 [pid 3630] <... close resumed>) = 0 [pid 3621] futex(0x7fe4fb9fc3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3639] <... set_robust_list resumed>) = 0 [pid 3638] setpgid(0, 0 [pid 3637] ftruncate(3, 139264 [pid 3636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3635] <... write resumed>) = 4 [pid 3630] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3639] mount("/dev/loop1", "./file0", "minix", 0, NULL [pid 3638] <... setpgid resumed>) = 0 [pid 3637] <... ftruncate resumed>) = 0 [pid 3636] <... openat resumed>) = 3 [pid 3635] close(3 [pid 3630] <... futex resumed>) = 0 [pid 3638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3637] pwrite64(3, "\x00\x04\x00\x00\x00\x00\x01\x00\x01\x00\x44\x00\x00\x00\x00\x00\xff\xff\xff\x7f\x80\x00\x00\x00\x5a\x4d", 26, 1024 [pid 3636] write(3, "1000", 4 [pid 3635] <... close resumed>) = 0 [pid 3630] futex(0x7fe4fb9fc3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3638] <... openat resumed>) = 3 [pid 3637] <... pwrite64 resumed>) = 26 [pid 3636] <... write resumed>) = 4 [pid 3635] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] <... openat resumed>) = 3 [pid 3638] write(3, "1000", 4 [pid 3637] pwrite64(3, "\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"..., 2214, 2176 [pid 3636] close(3 [pid 3635] <... futex resumed>) = 0 [pid 3610] ioctl(3, LOOP_CLR_FD [pid 3638] <... write resumed>) = 4 [pid 3637] <... pwrite64 resumed>) = 2214 [pid 3636] <... close resumed>) = 0 [pid 3635] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3610] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3638] close(3 [pid 3637] pwrite64(3, NULL, 0, 69632 [pid 3636] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3635] <... mmap resumed>) = 0x7fe4fb904000 [pid 3610] close(3 [pid 3638] <... close resumed>) = 0 [pid 3637] <... pwrite64 resumed>) = 0 [pid 3636] <... futex resumed>) = 0 [pid 3635] mprotect(0x7fe4fb905000, 131072, PROT_READ|PROT_WRITE [pid 3610] <... close resumed>) = 0 [pid 3638] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3637] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3635] <... mprotect resumed>) = 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3638] <... futex resumed>) = 0 [pid 3637] <... openat resumed>) = 4 [pid 3636] <... mmap resumed>) = 0x7fe4fb904000 [pid 3635] clone(child_stack=0x7fe4fb9243f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3637] ioctl(4, LOOP_SET_FD, 3 [pid 3636] mprotect(0x7fe4fb905000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 3640 attached [pid 3638] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3636] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 3641 attached [pid 3640] set_robust_list(0x5555569445e0, 24 [pid 3638] <... mmap resumed>) = 0x7fe4fb904000 [pid 3637] <... ioctl resumed>) = 0 [pid 3636] clone(child_stack=0x7fe4fb9243f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3635] <... clone resumed>, parent_tid=[3641], tls=0x7fe4fb924700, child_tidptr=0x7fe4fb9249d0) = 3641 [pid 3610] <... clone resumed>, child_tidptr=0x5555569445d0) = 3640 [pid 3641] set_robust_list(0x7fe4fb9249e0, 24 [pid 3640] <... set_robust_list resumed>) = 0 [pid 3638] mprotect(0x7fe4fb905000, 131072, PROT_READ|PROT_WRITE [pid 3637] mkdir("./file0", 0777 [pid 3635] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3641] <... set_robust_list resumed>) = 0 [pid 3640] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3638] <... mprotect resumed>) = 0 [pid 3637] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3636] <... clone resumed>, parent_tid=[3642], tls=0x7fe4fb924700, child_tidptr=0x7fe4fb9249d0) = 3642 [pid 3635] <... futex resumed>) = 0 [pid 3641] memfd_create("syzkaller", 0 [pid 3640] <... prctl resumed>) = 0 [pid 3638] clone(child_stack=0x7fe4fb9243f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3637] mount("/dev/loop0", "./file0", "minix", 0, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" [pid 3636] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3635] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3642 attached [pid 3641] <... memfd_create resumed>) = 3 [pid 3640] setpgid(0, 0 [pid 3637] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3636] <... futex resumed>) = 0 [pid 3637] ioctl(4, LOOP_CLR_FD [pid 3636] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3641] ftruncate(3, 139264 [pid 3640] <... setpgid resumed>) = 0 [pid 3638] <... clone resumed>, parent_tid=[3643], tls=0x7fe4fb924700, child_tidptr=0x7fe4fb9249d0) = 3643 [pid 3637] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 3643 attached [pid 3641] <... ftruncate resumed>) = 0 [pid 3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3638] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3637] close(4 [pid 3642] set_robust_list(0x7fe4fb9249e0, 24 [pid 3643] set_robust_list(0x7fe4fb9249e0, 24 [pid 3642] <... set_robust_list resumed>) = 0 [pid 3641] pwrite64(3, "\x00\x04\x00\x00\x00\x00\x01\x00\x01\x00\x44\x00\x00\x00\x00\x00\xff\xff\xff\x7f\x80\x00\x00\x00\x5a\x4d", 26, 1024 [pid 3640] <... openat resumed>) = 3 [pid 3639] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3638] <... futex resumed>) = 0 [pid 3637] <... close resumed>) = 0 [pid 3643] <... set_robust_list resumed>) = 0 [pid 3642] memfd_create("syzkaller", 0 [pid 3641] <... pwrite64 resumed>) = 26 [pid 3640] write(3, "1000", 4 [pid 3639] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3638] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3637] close(3 [pid 3643] memfd_create("syzkaller", 0 [pid 3642] <... memfd_create resumed>) = 3 [pid 3641] pwrite64(3, "\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"..., 2214, 2176 [pid 3640] <... write resumed>) = 4 [pid 3639] <... futex resumed>) = 0 [pid 3637] <... close resumed>) = 0 [pid 3643] <... memfd_create resumed>) = 3 [pid 3642] ftruncate(3, 139264 [pid 3641] <... pwrite64 resumed>) = 2214 [pid 3640] close(3 [pid 3639] futex(0x7fe4fb9fc3f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3637] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] exit_group(0 [pid 3643] ftruncate(3, 139264 [pid 3642] <... ftruncate resumed>) = 0 [pid 3641] pwrite64(3, NULL, 0, 69632 [pid 3640] <... close resumed>) = 0 [pid 3639] <... futex resumed>) = ? [pid 3637] <... futex resumed>) = 1 [pid 3633] <... futex resumed>) = 0 [pid 3630] <... futex resumed>) = ? [pid 3621] <... exit_group resumed>) = ? [pid 3643] <... ftruncate resumed>) = 0 [pid 3642] pwrite64(3, "\x00\x04\x00\x00\x00\x00\x01\x00\x01\x00\x44\x00\x00\x00\x00\x00\xff\xff\xff\x7f\x80\x00\x00\x00\x5a\x4d", 26, 1024 [pid 3641] <... pwrite64 resumed>) = 0 [pid 3640] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3639] +++ exited with 0 +++ [pid 3637] futex(0x7fe4fb9fc3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3633] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3630] +++ exited with 0 +++ [pid 3643] pwrite64(3, "\x00\x04\x00\x00\x00\x00\x01\x00\x01\x00\x44\x00\x00\x00\x00\x00\xff\xff\xff\x7f\x80\x00\x00\x00\x5a\x4d", 26, 1024 [pid 3642] <... pwrite64 resumed>) = 26 [pid 3641] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3640] <... futex resumed>) = 0 [pid 3637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3633] <... futex resumed>) = 0 [pid 3621] +++ exited with 0 +++ [pid 3643] <... pwrite64 resumed>) = 26 [ 48.919945][ T3639] I/O error, dev loop1, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 48.951100][ T3637] loop0: detected capacity change from 0 to 272 [ 48.960681][ T3639] MINIX-fs: unable to read superblock [pid 3642] pwrite64(3, "\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"..., 2214, 2176 [pid 3641] <... openat resumed>) = 4 [pid 3640] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3637] mount("/dev/loop0", "./file0", "minix", 0, NULL [pid 3633] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3643] pwrite64(3, "\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"..., 2214, 2176 [pid 3642] <... pwrite64 resumed>) = 2214 [pid 3641] ioctl(4, LOOP_SET_FD, 3 [pid 3640] <... mmap resumed>) = 0x7fe4fb904000 [pid 3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3621, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3643] <... pwrite64 resumed>) = 2214 [pid 3642] pwrite64(3, NULL, 0, 69632 [pid 3643] pwrite64(3, NULL, 0, 69632) = 0 [pid 3643] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3643] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3642] <... pwrite64 resumed>) = 0 [pid 3640] mprotect(0x7fe4fb905000, 131072, PROT_READ|PROT_WRITE [pid 3609] restart_syscall(<... resuming interrupted clone ...> [pid 3643] mkdir("./file0", 0777 [pid 3642] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3640] <... mprotect resumed>) = 0 [pid 3609] <... restart_syscall resumed>) = 0 [pid 3643] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3642] <... openat resumed>) = 4 [pid 3640] clone(child_stack=0x7fe4fb9243f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3643] mount("/dev/loop5", "./file0", "minix", 0, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" [pid 3642] ioctl(4, LOOP_SET_FD, 3 [pid 3641] <... ioctl resumed>) = 0 [pid 3643] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3643] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 3644 attached [pid 3644] set_robust_list(0x7fe4fb9249e0, 24) = 0 [pid 3644] futex(0x7fe4fb9fc3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3637] <... mount resumed>) = -1 EINVAL (Invalid argument) [ 49.000536][ T3637] I/O error, dev loop0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 49.011794][ T3641] loop4: detected capacity change from 0 to 272 [ 49.015215][ T3643] loop5: detected capacity change from 0 to 272 [ 49.029782][ T3637] MINIX-fs: unable to read superblock [pid 3637] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3633] <... futex resumed>) = 0 [pid 3642] <... ioctl resumed>) = 0 [pid 3641] mkdir("./file0", 0777 [pid 3640] <... clone resumed>, parent_tid=[3644], tls=0x7fe4fb924700, child_tidptr=0x7fe4fb9249d0) = 3644 [pid 3633] exit_group(0 [pid 3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3641] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3640] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3633] <... exit_group resumed>) = ? [pid 3609] <... openat resumed>) = 3 [pid 3644] <... futex resumed>) = 0 [pid 3642] mkdir("./file0", 0777 [pid 3641] mount("/dev/loop4", "./file0", "minix", 0, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" [pid 3640] <... futex resumed>) = 1 [pid 3609] ioctl(3, LOOP_CLR_FD [pid 3644] memfd_create("syzkaller", 0) = 3 [pid 3642] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3640] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3641] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3609] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3644] ftruncate(3, 139264 [pid 3642] mount("/dev/loop3", "./file0", "minix", 0, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" [pid 3637] <... futex resumed>) = ? [pid 3641] ioctl(4, LOOP_CLR_FD [pid 3609] close(3 [pid 3644] <... ftruncate resumed>) = 0 [pid 3641] <... ioctl resumed>) = 0 [pid 3609] <... close resumed>) = 0 [pid 3644] pwrite64(3, "\x00\x04\x00\x00\x00\x00\x01\x00\x01\x00\x44\x00\x00\x00\x00\x00\xff\xff\xff\x7f\x80\x00\x00\x00\x5a\x4d", 26, 1024 [pid 3641] close(4 [pid 3637] +++ exited with 0 +++ [pid 3633] +++ exited with 0 +++ [pid 3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3644] <... pwrite64 resumed>) = 26 [pid 3641] <... close resumed>) = 0 [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3633, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3644] pwrite64(3, "\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"..., 2214, 2176 [pid 3641] close(3 [pid 3644] <... pwrite64 resumed>) = 2214 [pid 3641] <... close resumed>) = 0 [pid 3609] <... clone resumed>, child_tidptr=0x5555569445d0) = 3646 [pid 3644] pwrite64(3, NULL, 0, 69632 [pid 3642] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3641] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3644] <... pwrite64 resumed>) = 0 [pid 3642] ioctl(4, LOOP_CLR_FD [pid 3641] <... futex resumed>) = 1 [pid 3636] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3635] <... futex resumed>) = 0 ./strace-static-x86_64: Process 3646 attached [pid 3644] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3641] futex(0x7fe4fb9fc3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3636] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3635] futex(0x7fe4fb9fc3e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3646] set_robust_list(0x5555569445e0, 24 [pid 3644] <... openat resumed>) = 4 [pid 3641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3636] <... futex resumed>) = 0 [pid 3635] <... futex resumed>) = 0 [ 49.046288][ T3642] loop3: detected capacity change from 0 to 272 [pid 3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3646] <... set_robust_list resumed>) = 0 [pid 3644] ioctl(4, LOOP_SET_FD, 3 [pid 3641] mount("/dev/loop4", "./file0", "minix", 0, NULL [pid 3636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3635] futex(0x7fe4fb9fc3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] <... openat resumed>) = 3 [pid 3646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3643] <... ioctl resumed>) = 0 [pid 3638] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3636] <... mmap resumed>) = 0x7fe4fb8e3000 [pid 3608] ioctl(3, LOOP_CLR_FD [pid 3646] <... prctl resumed>) = 0 [pid 3644] <... ioctl resumed>) = 0 [pid 3643] close(4 [pid 3636] mprotect(0x7fe4fb8e4000, 131072, PROT_READ|PROT_WRITE [pid 3608] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3646] setpgid(0, 0 [pid 3644] mkdir("./file0", 0777 [pid 3643] <... close resumed>) = 0 [pid 3636] <... mprotect resumed>) = 0 [pid 3608] close(3 [pid 3646] <... setpgid resumed>) = 0 [pid 3644] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3643] close(3 [pid 3636] clone(child_stack=0x7fe4fb9033f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3608] <... close resumed>) = 0 [pid 3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3644] mount("/dev/loop2", "./file0", "minix", 0, "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" [pid 3643] <... close resumed>) = 0 [pid 3638] futex(0x7fe4fb9fc3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3646] <... openat resumed>) = 3 [pid 3644] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 3643] futex(0x7fe4fb9fc3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3638] <... futex resumed>) = 0 [pid 3636] <... clone resumed>, parent_tid=[3647], tls=0x7fe4fb903700, child_tidptr=0x7fe4fb9039d0) = 3647 [pid 3646] write(3, "1000", 4 [pid 3644] ioctl(4, LOOP_CLR_FD [pid 3643] <... futex resumed>) = 0 [pid 3638] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0