./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1607027358

<...>
Warning: Permanently added '10.128.1.71' (ECDSA) to the list of known hosts.
execve("./syz-executor1607027358", ["./syz-executor1607027358"], 0x7ffe6a191560 /* 10 vars */) = 0
brk(NULL)                               = 0x55555661a000
brk(0x55555661ac40)                     = 0x55555661ac40
arch_prctl(ARCH_SET_FS, 0x55555661a300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
set_tid_address(0x55555661a5d0)         = 297
set_robust_list(0x55555661a5e0, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f02be7fc700, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f02be7fcdd0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f02be7fc7a0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f02be7fcdd0}, 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-executor1607027358", 4096) = 28
brk(0x55555663bc40)                     = 0x55555663bc40
brk(0x55555663c000)                     = 0x55555663c000
mprotect(0x7f02be8be000, 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=0x55555661a5d0) = 298
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661a5d0) = 299
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661a5d0) = 300
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661a5d0) = 301
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661a5d0) = 302
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661a5d0) = 303
./strace-static-x86_64: Process 303 attached
[pid   303] set_robust_list(0x55555661a5e0, 24) = 0
[pid   303] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid   303] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   303] close(3)                    = 0
[pid   303] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661a5d0) = 305
./strace-static-x86_64: Process 302 attached
[pid   302] set_robust_list(0x55555661a5e0, 24) = 0
[pid   302] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   302] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   302] close(3)                    = 0
./strace-static-x86_64: Process 298 attached
./strace-static-x86_64: Process 299 attached
./strace-static-x86_64: Process 300 attached
./strace-static-x86_64: Process 301 attached
[pid   300] set_robust_list(0x55555661a5e0, 24 <unfinished ...>
[pid   299] set_robust_list(0x55555661a5e0, 24 <unfinished ...>
[pid   298] set_robust_list(0x55555661a5e0, 24./strace-static-x86_64: Process 305 attached
 <unfinished ...>
[pid   301] set_robust_list(0x55555661a5e0, 24 <unfinished ...>
[pid   300] <... set_robust_list resumed>) = 0
[pid   299] <... set_robust_list resumed>) = 0
[pid   298] <... set_robust_list resumed>) = 0
[pid   302] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661a5d0) = 306
./strace-static-x86_64: Process 306 attached
[pid   306] set_robust_list(0x55555661a5e0, 24) = 0
[pid   306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   306] setpgid(0, 0)               = 0
[pid   306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   306] write(3, "1000", 4)         = 4
[pid   306] close(3)                    = 0
[pid   306] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02be7cb000
[pid   306] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   306] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[308], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 308
[pid   306] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   305] set_robust_list(0x55555661a5e0, 24 <unfinished ...>
[pid   301] <... set_robust_list resumed>) = 0
[pid   300] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   298] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   301] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   298] <... openat resumed>)       = 3
[pid   299] <... openat resumed>)       = 3
[pid   300] <... openat resumed>)       = 3
./strace-static-x86_64: Process 308 attached
[pid   305] <... set_robust_list resumed>) = 0
[pid   301] <... openat resumed>)       = 3
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   298] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[   26.984901][   T28] audit: type=1400 audit(1684337091.874:66): avc:  denied  { execmem } for  pid=297 comm="syz-executor160" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   27.004644][   T28] audit: type=1400 audit(1684337091.874:67): avc:  denied  { read write } for  pid=303 comm="syz-executor160" name="loop5" dev="devtmpfs" ino=118 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[pid   308] set_robust_list(0x7f02be7eb9e0, 24) = 0
[pid   308] memfd_create("syzkaller", 0) = 3
[pid   308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f02b63cb000
[pid   308] 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"..., 524288) = 524288
[pid   308] munmap(0x7f02b63cb000, 524288) = 0
[pid   308] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   308] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   305] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   299] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   298] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   308] <... ioctl resumed>)        = 0
[pid   308] close(3)                    = 0
[pid   308] mkdir("./file0", 0777)      = 0
[pid   308] mount("/dev/loop4", "./file0", "ext4", MS_NOSUID|MS_SILENT|MS_STRICTATIME, "grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_it"... <unfinished ...>
[pid   305] <... prctl resumed>)        = 0
[pid   305] setpgid(0, 0)               = 0
[pid   305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   305] write(3, "1000", 4)         = 4
[pid   305] close(3)                    = 0
[pid   305] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   305] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02be7cb000
[pid   305] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   305] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[311], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 311
[pid   305] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   305] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   301] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   301] close(3)                    = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661a5d0) = 312
[pid   300] close(3)                    = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] close(3 <unfinished ...>
[pid   298] close(3./strace-static-x86_64: Process 313 attached
./strace-static-x86_64: Process 312 attached
 <unfinished ...>
[pid   299] <... close resumed>)        = 0
[pid   298] <... close resumed>)        = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[   27.029898][   T28] audit: type=1400 audit(1684337091.874:68): avc:  denied  { open } for  pid=303 comm="syz-executor160" path="/dev/loop5" dev="devtmpfs" ino=118 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[   27.044980][  T308] loop4: detected capacity change from 0 to 1024
[   27.054731][   T28] audit: type=1400 audit(1684337091.874:69): avc:  denied  { ioctl } for  pid=303 comm="syz-executor160" path="/dev/loop5" dev="devtmpfs" ino=118 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 311 attached
 <unfinished ...>
[pid   313] set_robust_list(0x55555661a5e0, 24 <unfinished ...>
[pid   312] set_robust_list(0x55555661a5e0, 24 <unfinished ...>
[pid   299] <... clone resumed>, child_tidptr=0x55555661a5d0) = 314
./strace-static-x86_64: Process 315 attached
./strace-static-x86_64: Process 314 attached
[pid   313] <... set_robust_list resumed>) = 0
[pid   312] <... set_robust_list resumed>) = 0
[pid   311] set_robust_list(0x7f02be7eb9e0, 24 <unfinished ...>
[pid   298] <... clone resumed>, child_tidptr=0x55555661a5d0) = 315
[pid   315] set_robust_list(0x55555661a5e0, 24 <unfinished ...>
[pid   314] set_robust_list(0x55555661a5e0, 24 <unfinished ...>
[pid   313] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   315] <... set_robust_list resumed>) = 0
[pid   314] <... set_robust_list resumed>) = 0
[pid   312] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   311] <... set_robust_list resumed>) = 0
[pid   300] <... clone resumed>, child_tidptr=0x55555661a5d0) = 313
[pid   313] <... prctl resumed>)        = 0
[pid   314] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   311] memfd_create("syzkaller", 0 <unfinished ...>
[pid   315] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   313] setpgid(0, 0 <unfinished ...>
[pid   312] <... prctl resumed>)        = 0
[pid   315] <... prctl resumed>)        = 0
[pid   314] <... prctl resumed>)        = 0
[pid   313] <... setpgid resumed>)      = 0
[pid   311] <... memfd_create resumed>) = 3
[pid   315] setpgid(0, 0 <unfinished ...>
[pid   312] setpgid(0, 0 <unfinished ...>
[pid   313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   315] <... setpgid resumed>)      = 0
[pid   314] setpgid(0, 0 <unfinished ...>
[pid   312] <... setpgid resumed>)      = 0
[pid   311] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   314] <... setpgid resumed>)      = 0
[pid   313] <... openat resumed>)       = 3
[pid   312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   311] <... mmap resumed>)         = 0x7f02b63cb000
[pid   314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   315] <... openat resumed>)       = 3
[pid   314] <... openat resumed>)       = 3
[pid   313] write(3, "1000", 4 <unfinished ...>
[pid   312] <... openat resumed>)       = 3
[pid   311] 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"..., 524288 <unfinished ...>
[pid   312] write(3, "1000", 4 <unfinished ...>
[pid   315] write(3, "1000", 4 <unfinished ...>
[pid   314] write(3, "1000", 4 <unfinished ...>
[pid   313] <... write resumed>)        = 4
[pid   315] <... write resumed>)        = 4
[pid   314] <... write resumed>)        = 4
[pid   313] close(3 <unfinished ...>
[pid   312] <... write resumed>)        = 4
[pid   311] <... write resumed>)        = 524288
[pid   311] munmap(0x7f02b63cb000, 524288) = 0
[pid   311] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   311] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   315] close(3 <unfinished ...>
[pid   314] close(3 <unfinished ...>
[pid   313] <... close resumed>)        = 0
[pid   312] close(3 <unfinished ...>
[pid   315] <... close resumed>)        = 0
[pid   314] <... close resumed>)        = 0
[pid   313] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] <... close resumed>)        = 0
[pid   315] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   314] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   312] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   315] <... futex resumed>)        = 0
[pid   314] <... futex resumed>)        = 0
[pid   313] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   315] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   312] <... futex resumed>)        = 0
[pid   313] <... mmap resumed>)         = 0x7f02be7cb000
[   27.087554][   T28] audit: type=1400 audit(1684337091.954:70): avc:  denied  { mounton } for  pid=306 comm="syz-executor160" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   27.114619][  T308] EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback.
[pid   312] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   315] <... mmap resumed>)         = 0x7f02be7cb000
[pid   314] <... mmap resumed>)         = 0x7f02be7cb000
[pid   313] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   312] <... mmap resumed>)         = 0x7f02be7cb000
[pid   308] <... mount resumed>)        = 0
[pid   315] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   314] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   313] <... mprotect resumed>)     = 0
[pid   312] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   308] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   315] <... mprotect resumed>)     = 0
[pid   314] <... mprotect resumed>)     = 0
[pid   313] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   312] <... mprotect resumed>)     = 0
[pid   308] <... openat resumed>)       = 3
[pid   315] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   312] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   314] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   308] chdir("./file0")            = 0
./strace-static-x86_64: Process 316 attached
./strace-static-x86_64: Process 319 attached
./strace-static-x86_64: Process 318 attached
./strace-static-x86_64: Process 317 attached
[pid   314] <... clone resumed>, parent_tid=[317], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 317
[pid   313] <... clone resumed>, parent_tid=[316], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 316
[pid   311] <... ioctl resumed>)        = 0
[pid   308] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   319] set_robust_list(0x7f02be7eb9e0, 24 <unfinished ...>
[pid   318] set_robust_list(0x7f02be7eb9e0, 24 <unfinished ...>
[pid   317] set_robust_list(0x7f02be7eb9e0, 24 <unfinished ...>
[pid   316] set_robust_list(0x7f02be7eb9e0, 24 <unfinished ...>
[pid   315] <... clone resumed>, parent_tid=[318], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 318
[pid   314] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] <... clone resumed>, parent_tid=[319], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 319
[pid   311] close(3 <unfinished ...>
[pid   308] <... ioctl resumed>)        = 0
[pid   319] <... set_robust_list resumed>) = 0
[pid   318] <... set_robust_list resumed>) = 0
[pid   317] <... set_robust_list resumed>) = 0
[pid   316] <... set_robust_list resumed>) = 0
[pid   315] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   314] <... futex resumed>)        = 0
[pid   313] <... futex resumed>)        = 0
[pid   312] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   308] close(4 <unfinished ...>
[pid   311] <... close resumed>)        = 0
[pid   311] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid   311] mount("/dev/loop5", "./file0", "ext4", MS_NOSUID|MS_SILENT|MS_STRICTATIME, "grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_it"... <unfinished ...>
[pid   319] memfd_create("syzkaller", 0 <unfinished ...>
[pid   318] memfd_create("syzkaller", 0 <unfinished ...>
[pid   315] <... futex resumed>)        = 0
[pid   312] <... futex resumed>)        = 0
[pid   317] memfd_create("syzkaller", 0 <unfinished ...>
[pid   313] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   314] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   316] memfd_create("syzkaller", 0 <unfinished ...>
[pid   315] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   312] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   319] <... memfd_create resumed>) = 3
[pid   318] <... memfd_create resumed>) = 3
[pid   317] <... memfd_create resumed>) = 3
[pid   308] <... close resumed>)        = 0
[pid   319] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   316] <... memfd_create resumed>) = 3
[pid   308] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   319] <... mmap resumed>)         = 0x7f02b63cb000
[pid   318] <... mmap resumed>)         = 0x7f02b63cb000
[pid   317] <... mmap resumed>)         = 0x7f02b63cb000
[pid   316] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   308] <... futex resumed>)        = 1
[pid   306] <... futex resumed>)        = 0
[pid   319] 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"..., 524288 <unfinished ...>
[pid   318] 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"..., 524288 <unfinished ...>
[pid   306] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   27.123928][   T28] audit: type=1400 audit(1684337092.014:71): avc:  denied  { mount } for  pid=306 comm="syz-executor160" name="/" dev="loop4" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   27.125169][  T311] loop5: detected capacity change from 0 to 1024
[   27.163904][   T28] audit: type=1400 audit(1684337092.054:72): avc:  denied  { mounton } for  pid=305 comm="syz-executor160" path="/root/file0" dev="loop4" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[pid   306] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   319] <... write resumed>)        = 524288
[pid   318] <... write resumed>)        = 524288
[pid   317] 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"..., 524288 <unfinished ...>
[pid   316] <... mmap resumed>)         = 0x7f02b63cb000
[pid   308] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   319] munmap(0x7f02b63cb000, 524288 <unfinished ...>
[pid   318] munmap(0x7f02b63cb000, 524288 <unfinished ...>
[pid   311] <... mount resumed>)        = 0
[pid   311] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid   311] chdir("./file0")            = 0
[pid   317] <... write resumed>)        = 524288
[pid   311] ioctl(4, LOOP_CLR_FD)       = 0
[pid   311] close(4 <unfinished ...>
[pid   319] <... munmap resumed>)       = 0
[pid   318] <... munmap resumed>)       = 0
[pid   317] munmap(0x7f02b63cb000, 524288 <unfinished ...>
[pid   316] 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"..., 524288 <unfinished ...>
[pid   311] <... close resumed>)        = 0
[pid   311] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   305] <... futex resumed>)        = 0
[pid   305] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   305] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   311] <... futex resumed>)        = 1
[pid   311] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4
[pid   311] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   305] <... futex resumed>)        = 0
[pid   305] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   305] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   306] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   306] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   306] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   306] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02b642a000
[pid   306] mprotect(0x7f02b642b000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   306] clone(child_stack=0x7f02b644a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[321], tls=0x7f02b644a700, child_tidptr=0x7f02b644a9d0) = 321
[pid   306] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   311] <... futex resumed>)        = 1
[pid   311] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5
[pid   311] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   305] <... futex resumed>)        = 0
[pid   305] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   305] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   311] <... futex resumed>)        = 1
[pid   311] ftruncate(5, 33587199)      = 0
[pid   311] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   305] <... futex resumed>)        = 0
[pid   305] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   305] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   311] <... futex resumed>)        = 1
[pid   311] sendfile(4, 5, NULL, 281474978811909 <unfinished ...>
[pid   319] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   318] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   319] <... openat resumed>)       = 4
[pid   319] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   318] <... openat resumed>)       = 4
[pid   318] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   317] <... munmap resumed>)       = 0
[pid   318] <... ioctl resumed>)        = 0
[pid   311] <... sendfile resumed>)     = 376832
[pid   316] <... write resumed>)        = 524288
[pid   317] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   316] munmap(0x7f02b63cb000, 524288 <unfinished ...>
[pid   311] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 321 attached
 <unfinished ...>
[pid   319] <... ioctl resumed>)        = 0
[pid   318] close(3 <unfinished ...>
[pid   317] <... openat resumed>)       = 4
[pid   305] <... futex resumed>)        = 0
[pid   321] set_robust_list(0x7f02b644a9e0, 24 <unfinished ...>
[pid   319] close(3 <unfinished ...>
[pid   318] <... close resumed>)        = 0
[pid   316] <... munmap resumed>)       = 0
[pid   305] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   321] <... set_robust_list resumed>) = 0
[pid   319] <... close resumed>)        = 0
[pid   318] mkdir("./file0", 0777 <unfinished ...>
[pid   317] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   316] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   305] <... futex resumed>)        = 0
[pid   305] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   311] <... futex resumed>)        = 1
[   27.168917][  T311] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback.
[   27.200458][   T28] audit: type=1400 audit(1684337092.094:73): avc:  denied  { write } for  pid=306 comm="syz-executor160" name="/" dev="loop4" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[   27.223025][  T319] loop3: detected capacity change from 0 to 1024
[   27.229434][  T318] loop0: detected capacity change from 0 to 1024
[pid   311] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL) = 0
[pid   311] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   305] <... futex resumed>)        = 0
[pid   305] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   305] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   311] <... futex resumed>)        = 1
[pid   311] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 6
[pid   311] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   305] <... futex resumed>)        = 0
[pid   305] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   305] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   311] <... futex resumed>)        = 1
[pid   311] writev(6, [{iov_base="\x46\xbd\x26\x2b\x9e\x1b\xd9\xd3\x26\x37\x9b\x13\x50\x4d\xd6\xfd\xac\xc6\xcd\x5c\x17\x5a\xf2\xf8\x3d\x3a\x25\xb3\x2e\xa9\x45\xdb\x18\x66\x51\x15\x58\xa3\x92\x3f\xd7\xe7\x7e\xa6\x78\x86\xda\x01\x84\x34\x97\x0f\x86\x4b\x4c\x1a\x9c\x55\xcc\x54\xda\xf1\x12\x18\xab\x55\x1b\xe9\xde\xac\x81\xf1\x65\x69\xe1\xaa\x70\x43\x8e\xc3\x22\xed\x93\xf4\xc0\x4b\xa6\xe8\xb6\xe2\x84\x79\x03\xf8\x58\x76\xe9\x86\x0c\x5f"..., iov_len=110}, {iov_base="\xc1\x3f\x4e\x2a\xf2\x9b\xb0\x30\x8e\x36\x30\x3a\x7b\x03\x07\xff\x53\x78\x57\xa1\x6d\xd7\x4e\x47\xe6\x96\xf9\xc7\xae\xb7\x27\x65\xad\xba\xd6\x1d\x04\xf9\x3e\x4a\x5e\xb4\x13\x71\x31\x71\xdf\xd3\x73\x1b\x74\xf0\xc9\x3a\xd2\x70\x2a\x1c\x9d\x49\x28\x98\x77\x69\xf2\x25\xe4\xdc\x5d\xd8\xe8\xae\x3c\x31\xc0\x8d\x5d\x1e\x0b\x49\x27\xb0\x26\x15\x35\x2b\x6b\x55\x7b\x48\x9e\x35\x2d\x07\x87\x94\x37\x47\x8d\xc8"..., iov_len=132}, {iov_base="\x34\xee\x3a\x2c\x11\x7e\x44\x32\x79\xe6\x7b\xfc\xba\x85\xae\xb6\xdb\x8c\x5b\x21\x8f\xcc\x1d\xca\xc5\x59\xe0\x50\x48\xcd\x76\xcc\xd8\x54\xd7\x37\xc4\x62\x2b\xc8\xc9\xb8\x2f\x51\x77\xf2\x27\x84\x1f\xe1\xf5\x3f\x0f\x8f\x7c\x3a\x80\x03\x7c\xcb\x36\xb4\x17\x6e\xbe\x9a\xe1\x11\xe8\x40\xd9\xaa\xeb\x99\xb6\xf2\x46\xea\xc6\x9a\x85\xa3\xb5\x2a\xff\x52\x0e\x11\x30\xdd\x72\x1b\xa2\x94\xe5\x5b\xcf\x3b\xdb\xba"..., iov_len=107}, {iov_base="\x6f\x90\x8a\xac\xf0\xcd\x92\x31\x69\xf3\x7d\xc7\x3a\x11\xe2\x5b\x26\x19\xc4\xd9\x1a\x04\xf2\x63\xb3\xae\xa7\xf4\xfd\x5f\x01\xe6\x24\x96\xe4\x4b\x83\x1e\xdd\x5d\x30\x8a\x6c\x79\xe7\xc4\x59\x94\x23\x86\x48\x8a\xd9\x3a\xe3\x73\x40\x83\x57\xbd\x80\x46\xdf\x53\x40\x7d\x3d\x76\x32\x45\x45\x98\x58\x72\x63\x6d\x29\xbb\xf1\x30\xa5\xff\x4b\x4a\x57\x85\x84\xc8\x24\x5c\x5a\x12\x7c\xb3\x6c\x64\x5b\xb3\x4c\x74"..., iov_len=176}, {iov_base="\xd3\x25\xd5\x12\x13\x6e\xfa\xc1\x9c\x33\x47\x09\xcf\x13\xf9\xa9\xac\x3d\x2d\x36\x20\x64\x0a\x56\xdf\x58\xa5\x62\xea\x3d\x18\x2f\xfa\x18\xdc\x34\x7b\xdd\x8f\xcb\x18\xbb\x6f\x22\x3b\x6f\xe0\xc6\x40\xbf\x1b\xd8\xa3\x55\xb0\x41\xab\xa3\x3b\x90\x0c\x45\x25\xff\x33\xe2\x0e\x34\x9f\xd2\xba\x0b\x3e\x61\x10\xfe\x0e\x4e\x57\x8b\x0b\x20\x65\xd2\x91\x95\x3e\x5c\x09\x2a\x9f\x20\x6e\x04\xe8\xe8\x2b\x1a\xc7\x1b"..., iov_len=574}], 5) = 1099
[pid   311] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   305] <... futex resumed>)        = 0
[pid   305] exit_group(0)               = ?
[pid   311] <... futex resumed>)        = ?
[pid   311] +++ exited with 0 +++
[pid   305] +++ exited with 0 +++
[pid   321] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   319] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid   319] mount("/dev/loop3", "./file0", "ext4", MS_NOSUID|MS_SILENT|MS_STRICTATIME, "grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_it"... <unfinished ...>
[pid   318] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid   318] mount("/dev/loop0", "./file0", "ext4", MS_NOSUID|MS_SILENT|MS_STRICTATIME, "grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_it"... <unfinished ...>
[pid   317] <... ioctl resumed>)        = 0
[pid   316] <... openat resumed>)       = 4
[pid   303] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=305, si_uid=0, si_status=0, si_utime=0, si_stime=6} ---
[pid   306] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   306] futex(0x7f02be8c47cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02b6409000
[pid   306] mprotect(0x7f02b640a000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   306] clone(child_stack=0x7f02b64293f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[323], tls=0x7f02b6429700, child_tidptr=0x7f02b64299d0) = 323
[pid   306] futex(0x7f02be8c47c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] futex(0x7f02be8c47cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 323 attached
 <unfinished ...>
[pid   323] set_robust_list(0x7f02b64299e0, 24) = 0
[pid   323] ftruncate(-1, 33587199)     = -1 EBADF (Bad file descriptor)
[pid   323] futex(0x7f02be8c47cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   306] <... futex resumed>)        = 0
[pid   306] futex(0x7f02be8c47c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] futex(0x7f02be8c47cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   323] <... futex resumed>)        = 1
[pid   323] sendfile(-1, -1, NULL, 281474978811909) = -1 EBADF (Bad file descriptor)
[pid   323] futex(0x7f02be8c47cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   306] <... futex resumed>)        = 0
[pid   306] futex(0x7f02be8c47c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] futex(0x7f02be8c47cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   323] <... futex resumed>)        = 1
[pid   323] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL) = -1 ENOENT (No such file or directory)
[pid   323] futex(0x7f02be8c47cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   306] <... futex resumed>)        = 0
[pid   306] futex(0x7f02be8c47c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] futex(0x7f02be8c47cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   323] <... futex resumed>)        = 1
[pid   323] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   319] <... mount resumed>)        = 0
[pid   319] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid   319] chdir("./file0")            = 0
[pid   319] ioctl(4, LOOP_CLR_FD)       = 0
[   27.238762][   T28] audit: type=1400 audit(1684337092.094:74): avc:  denied  { add_name } for  pid=306 comm="syz-executor160" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[   27.259622][  T317] loop1: detected capacity change from 0 to 1024
[   27.261805][  T319] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: writeback.
[pid   319] close(4 <unfinished ...>
[pid   317] close(3 <unfinished ...>
[pid   316] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   319] <... close resumed>)        = 0
[pid   319] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   319] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   317] <... close resumed>)        = 0
[pid   317] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid   317] mount("/dev/loop1", "./file0", "ext4", MS_NOSUID|MS_SILENT|MS_STRICTATIME, "grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_it"... <unfinished ...>
[pid   303] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid   303] ioctl(3, LOOP_CLR_FD)       = 0
[pid   303] close(3)                    = 0
[pid   303] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   312] <... futex resumed>)        = 0
[pid   316] <... ioctl resumed>)        = 0
[pid   312] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   303] <... clone resumed>, child_tidptr=0x55555661a5d0) = 325
[pid   308] <... open resumed>)         = 4
[pid   323] <... open resumed>)         = 6
[pid   321] <... open resumed>)         = 5
[pid   312] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   308] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 325 attached
 <unfinished ...>
[pid   316] close(3 <unfinished ...>
[pid   323] futex(0x7f02be8c47cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   321] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   323] <... futex resumed>)        = 1
[pid   321] <... futex resumed>)        = 0
[pid   316] <... close resumed>)        = 0
[pid   308] <... futex resumed>)        = 0
[pid   306] <... futex resumed>)        = 0
[pid   308] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   316] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid   323] futex(0x7f02be8c47c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   321] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   316] mount("/dev/loop2", "./file0", "ext4", MS_NOSUID|MS_SILENT|MS_STRICTATIME, "grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_it"... <unfinished ...>
[pid   306] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   306] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   308] <... futex resumed>)        = 0
[pid   308] writev(6, [{iov_base="\x46\xbd\x26\x2b\x9e\x1b\xd9\xd3\x26\x37\x9b\x13\x50\x4d\xd6\xfd\xac\xc6\xcd\x5c\x17\x5a\xf2\xf8\x3d\x3a\x25\xb3\x2e\xa9\x45\xdb\x18\x66\x51\x15\x58\xa3\x92\x3f\xd7\xe7\x7e\xa6\x78\x86\xda\x01\x84\x34\x97\x0f\x86\x4b\x4c\x1a\x9c\x55\xcc\x54\xda\xf1\x12\x18\xab\x55\x1b\xe9\xde\xac\x81\xf1\x65\x69\xe1\xaa\x70\x43\x8e\xc3\x22\xed\x93\xf4\xc0\x4b\xa6\xe8\xb6\xe2\x84\x79\x03\xf8\x58\x76\xe9\x86\x0c\x5f"..., iov_len=110}, {iov_base="\xc1\x3f\x4e\x2a\xf2\x9b\xb0\x30\x8e\x36\x30\x3a\x7b\x03\x07\xff\x53\x78\x57\xa1\x6d\xd7\x4e\x47\xe6\x96\xf9\xc7\xae\xb7\x27\x65\xad\xba\xd6\x1d\x04\xf9\x3e\x4a\x5e\xb4\x13\x71\x31\x71\xdf\xd3\x73\x1b\x74\xf0\xc9\x3a\xd2\x70\x2a\x1c\x9d\x49\x28\x98\x77\x69\xf2\x25\xe4\xdc\x5d\xd8\xe8\xae\x3c\x31\xc0\x8d\x5d\x1e\x0b\x49\x27\xb0\x26\x15\x35\x2b\x6b\x55\x7b\x48\x9e\x35\x2d\x07\x87\x94\x37\x47\x8d\xc8"..., iov_len=132}, {iov_base="\x34\xee\x3a\x2c\x11\x7e\x44\x32\x79\xe6\x7b\xfc\xba\x85\xae\xb6\xdb\x8c\x5b\x21\x8f\xcc\x1d\xca\xc5\x59\xe0\x50\x48\xcd\x76\xcc\xd8\x54\xd7\x37\xc4\x62\x2b\xc8\xc9\xb8\x2f\x51\x77\xf2\x27\x84\x1f\xe1\xf5\x3f\x0f\x8f\x7c\x3a\x80\x03\x7c\xcb\x36\xb4\x17\x6e\xbe\x9a\xe1\x11\xe8\x40\xd9\xaa\xeb\x99\xb6\xf2\x46\xea\xc6\x9a\x85\xa3\xb5\x2a\xff\x52\x0e\x11\x30\xdd\x72\x1b\xa2\x94\xe5\x5b\xcf\x3b\xdb\xba"..., iov_len=107}, {iov_base="\x6f\x90\x8a\xac\xf0\xcd\x92\x31\x69\xf3\x7d\xc7\x3a\x11\xe2\x5b\x26\x19\xc4\xd9\x1a\x04\xf2\x63\xb3\xae\xa7\xf4\xfd\x5f\x01\xe6\x24\x96\xe4\x4b\x83\x1e\xdd\x5d\x30\x8a\x6c\x79\xe7\xc4\x59\x94\x23\x86\x48\x8a\xd9\x3a\xe3\x73\x40\x83\x57\xbd\x80\x46\xdf\x53\x40\x7d\x3d\x76\x32\x45\x45\x98\x58\x72\x63\x6d\x29\xbb\xf1\x30\xa5\xff\x4b\x4a\x57\x85\x84\xc8\x24\x5c\x5a\x12\x7c\xb3\x6c\x64\x5b\xb3\x4c\x74"..., iov_len=176}, {iov_base="\xd3\x25\xd5\x12\x13\x6e\xfa\xc1\x9c\x33\x47\x09\xcf\x13\xf9\xa9\xac\x3d\x2d\x36\x20\x64\x0a\x56\xdf\x58\xa5\x62\xea\x3d\x18\x2f\xfa\x18\xdc\x34\x7b\xdd\x8f\xcb\x18\xbb\x6f\x22\x3b\x6f\xe0\xc6\x40\xbf\x1b\xd8\xa3\x55\xb0\x41\xab\xa3\x3b\x90\x0c\x45\x25\xff\x33\xe2\x0e\x34\x9f\xd2\xba\x0b\x3e\x61\x10\xfe\x0e\x4e\x57\x8b\x0b\x20\x65\xd2\x91\x95\x3e\x5c\x09\x2a\x9f\x20\x6e\x04\xe8\xe8\x2b\x1a\xc7\x1b"..., iov_len=574}], 5 <unfinished ...>
[pid   319] <... futex resumed>)        = 0
[pid   319] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   325] set_robust_list(0x55555661a5e0, 24) = 0
[pid   325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   325] setpgid(0, 0)               = 0
[pid   325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   325] write(3, "1000", 4 <unfinished ...>
[pid   308] <... writev resumed>)       = 1099
[pid   308] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   306] <... futex resumed>)        = 0
[pid   308] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   306] exit_group(0 <unfinished ...>
[pid   323] <... futex resumed>)        = ?
[pid   321] <... futex resumed>)        = ?
[pid   306] <... exit_group resumed>)   = ?
[pid   323] +++ exited with 0 +++
[pid   321] +++ exited with 0 +++
[pid   308] <... futex resumed>)        = ?
[pid   325] <... write resumed>)        = 4
[pid   325] close(3)                    = 0
[pid   325] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   325] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02be7cb000
[pid   325] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   319] <... open resumed>)         = 4
[pid   325] <... mprotect resumed>)     = 0
[pid   325] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   319] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   319] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   325] <... clone resumed>, parent_tid=[330], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 330
[pid   325] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   325] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 330 attached
 <unfinished ...>
[pid   330] set_robust_list(0x7f02be7eb9e0, 24) = 0
[pid   330] memfd_create("syzkaller", 0) = 3
[pid   312] <... futex resumed>)        = 0
[pid   317] <... mount resumed>)        = 0
[pid   308] +++ exited with 0 +++
[pid   306] +++ exited with 0 +++
[pid   330] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   312] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   302] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=306, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   312] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   302] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   319] <... futex resumed>)        = 0
[pid   317] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   302] <... openat resumed>)       = 3
[pid   302] ioctl(3, LOOP_CLR_FD)       = 0
[pid   302] close(3)                    = 0
[pid   302] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661a5d0) = 331
[pid   317] <... openat resumed>)       = 3
[pid   317] chdir("./file0")            = 0
[pid   317] ioctl(4, LOOP_CLR_FD)       = 0
[pid   317] close(4)                    = 0
[pid   317] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   314] <... futex resumed>)        = 0
[pid   314] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   314] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   317] <... futex resumed>)        = 1
[pid   317] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   319] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5
[pid   319] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   312] <... futex resumed>)        = 0
[pid   312] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   312] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   319] ftruncate(5, 33587199)      = 0
[pid   319] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   312] <... futex resumed>)        = 0
[pid   312] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   312] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   319] sendfile(4, 5, NULL, 281474978811909 <unfinished ...>
[pid   317] <... open resumed>)         = 4
[pid   317] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   314] <... futex resumed>)        = 0
[pid   314] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   314] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   317] <... futex resumed>)        = 1
[pid   317] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5
[pid   317] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   314] <... futex resumed>)        = 0
[pid   314] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   314] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   317] <... futex resumed>)        = 1
[pid   317] ftruncate(5, 33587199)      = 0
[pid   317] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   314] <... futex resumed>)        = 0
[pid   314] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   314] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   317] <... futex resumed>)        = 1
[   27.266055][   T28] audit: type=1400 audit(1684337092.094:75): avc:  denied  { create } for  pid=306 comm="syz-executor160" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1
[   27.295316][  T316] loop2: detected capacity change from 0 to 1024
[   27.305977][  T317] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback.
[   27.317411][  T318] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback.
[pid   317] sendfile(4, 5, NULL, 281474978811909 <unfinished ...>
[pid   330] <... mmap resumed>)         = 0x7f02b63cb000
[pid   318] <... mount resumed>)        = 0
[pid   318] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid   318] chdir("./file0")            = 0
[pid   318] ioctl(4, LOOP_CLR_FD)       = 0
[pid   318] close(4)                    = 0
[pid   318] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   315] <... futex resumed>)        = 0
[pid   315] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   315] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   318] <... futex resumed>)        = 1
[pid   318] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4
[pid   318] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   315] <... futex resumed>)        = 0
[pid   315] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   315] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   318] <... futex resumed>)        = 1
[pid   318] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5
[pid   318] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   315] <... futex resumed>)        = 0
[pid   315] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   315] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   318] <... futex resumed>)        = 1
[pid   318] ftruncate(5, 33587199)      = 0
[pid   318] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   315] <... futex resumed>)        = 0
[pid   315] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   315] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   318] <... futex resumed>)        = 1
[pid   318] sendfile(4, 5, NULL, 281474978811909 <unfinished ...>
[pid   330] 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"..., 524288./strace-static-x86_64: Process 331 attached
 <unfinished ...>
[pid   331] set_robust_list(0x55555661a5e0, 24) = 0
[pid   331] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   330] <... write resumed>)        = 524288
[pid   331] <... prctl resumed>)        = 0
[pid   331] setpgid(0, 0)               = 0
[pid   331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   331] write(3, "1000", 4 <unfinished ...>
[pid   312] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   312] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   312] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02b642a000
[pid   312] mprotect(0x7f02b642b000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   312] clone(child_stack=0x7f02b644a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[332], tls=0x7f02b644a700, child_tidptr=0x7f02b644a9d0) = 332
[pid   312] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   312] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   331] <... write resumed>)        = 4
[pid   331] close(3 <unfinished ...>
[pid   314] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   314] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   314] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   331] <... close resumed>)        = 0
[pid   314] <... futex resumed>)        = 0
[pid   314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02b642a000
[pid   314] mprotect(0x7f02b642b000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   314] clone(child_stack=0x7f02b644a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[333], tls=0x7f02b644a700, child_tidptr=0x7f02b644a9d0) = 333
[pid   331] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   314] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   314] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   318] <... sendfile resumed>)     = 376832
[pid   318] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   315] <... futex resumed>)        = 0
[pid   315] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   315] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   318] <... futex resumed>)        = 1
[pid   318] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   331] <... futex resumed>)        = 0
[pid   318] <... mount resumed>)        = 0
[pid   318] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   315] <... futex resumed>)        = 0
[pid   315] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   315] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   318] <... futex resumed>)        = 1
[pid   318] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 6
[pid   318] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   315] <... futex resumed>)        = 0
[pid   315] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   315] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   318] <... futex resumed>)        = 1
[pid   318] writev(6, [{iov_base="\x46\xbd\x26\x2b\x9e\x1b\xd9\xd3\x26\x37\x9b\x13\x50\x4d\xd6\xfd\xac\xc6\xcd\x5c\x17\x5a\xf2\xf8\x3d\x3a\x25\xb3\x2e\xa9\x45\xdb\x18\x66\x51\x15\x58\xa3\x92\x3f\xd7\xe7\x7e\xa6\x78\x86\xda\x01\x84\x34\x97\x0f\x86\x4b\x4c\x1a\x9c\x55\xcc\x54\xda\xf1\x12\x18\xab\x55\x1b\xe9\xde\xac\x81\xf1\x65\x69\xe1\xaa\x70\x43\x8e\xc3\x22\xed\x93\xf4\xc0\x4b\xa6\xe8\xb6\xe2\x84\x79\x03\xf8\x58\x76\xe9\x86\x0c\x5f"..., iov_len=110}, {iov_base="\xc1\x3f\x4e\x2a\xf2\x9b\xb0\x30\x8e\x36\x30\x3a\x7b\x03\x07\xff\x53\x78\x57\xa1\x6d\xd7\x4e\x47\xe6\x96\xf9\xc7\xae\xb7\x27\x65\xad\xba\xd6\x1d\x04\xf9\x3e\x4a\x5e\xb4\x13\x71\x31\x71\xdf\xd3\x73\x1b\x74\xf0\xc9\x3a\xd2\x70\x2a\x1c\x9d\x49\x28\x98\x77\x69\xf2\x25\xe4\xdc\x5d\xd8\xe8\xae\x3c\x31\xc0\x8d\x5d\x1e\x0b\x49\x27\xb0\x26\x15\x35\x2b\x6b\x55\x7b\x48\x9e\x35\x2d\x07\x87\x94\x37\x47\x8d\xc8"..., iov_len=132}, {iov_base="\x34\xee\x3a\x2c\x11\x7e\x44\x32\x79\xe6\x7b\xfc\xba\x85\xae\xb6\xdb\x8c\x5b\x21\x8f\xcc\x1d\xca\xc5\x59\xe0\x50\x48\xcd\x76\xcc\xd8\x54\xd7\x37\xc4\x62\x2b\xc8\xc9\xb8\x2f\x51\x77\xf2\x27\x84\x1f\xe1\xf5\x3f\x0f\x8f\x7c\x3a\x80\x03\x7c\xcb\x36\xb4\x17\x6e\xbe\x9a\xe1\x11\xe8\x40\xd9\xaa\xeb\x99\xb6\xf2\x46\xea\xc6\x9a\x85\xa3\xb5\x2a\xff\x52\x0e\x11\x30\xdd\x72\x1b\xa2\x94\xe5\x5b\xcf\x3b\xdb\xba"..., iov_len=107}, {iov_base="\x6f\x90\x8a\xac\xf0\xcd\x92\x31\x69\xf3\x7d\xc7\x3a\x11\xe2\x5b\x26\x19\xc4\xd9\x1a\x04\xf2\x63\xb3\xae\xa7\xf4\xfd\x5f\x01\xe6\x24\x96\xe4\x4b\x83\x1e\xdd\x5d\x30\x8a\x6c\x79\xe7\xc4\x59\x94\x23\x86\x48\x8a\xd9\x3a\xe3\x73\x40\x83\x57\xbd\x80\x46\xdf\x53\x40\x7d\x3d\x76\x32\x45\x45\x98\x58\x72\x63\x6d\x29\xbb\xf1\x30\xa5\xff\x4b\x4a\x57\x85\x84\xc8\x24\x5c\x5a\x12\x7c\xb3\x6c\x64\x5b\xb3\x4c\x74"..., iov_len=176}, {iov_base="\xd3\x25\xd5\x12\x13\x6e\xfa\xc1\x9c\x33\x47\x09\xcf\x13\xf9\xa9\xac\x3d\x2d\x36\x20\x64\x0a\x56\xdf\x58\xa5\x62\xea\x3d\x18\x2f\xfa\x18\xdc\x34\x7b\xdd\x8f\xcb\x18\xbb\x6f\x22\x3b\x6f\xe0\xc6\x40\xbf\x1b\xd8\xa3\x55\xb0\x41\xab\xa3\x3b\x90\x0c\x45\x25\xff\x33\xe2\x0e\x34\x9f\xd2\xba\x0b\x3e\x61\x10\xfe\x0e\x4e\x57\x8b\x0b\x20\x65\xd2\x91\x95\x3e\x5c\x09\x2a\x9f\x20\x6e\x04\xe8\xe8\x2b\x1a\xc7\x1b"..., iov_len=574}], 5) = 1099
[pid   318] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   315] <... futex resumed>)        = 0
[pid   315] exit_group(0)               = ?
[pid   318] <... futex resumed>)        = ?
[pid   331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   318] +++ exited with 0 +++
[pid   315] +++ exited with 0 +++
[pid   330] munmap(0x7f02b63cb000, 524288 <unfinished ...>
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=315, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   298] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   298] ioctl(3, LOOP_CLR_FD)       = 0
[pid   298] close(3)                    = 0
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   331] <... mmap resumed>)         = 0x7f02be7cb000
[pid   316] <... mount resumed>)        = 0
[pid   316] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid   316] chdir("./file0")            = 0
[pid   316] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   331] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   298] <... clone resumed>, child_tidptr=0x55555661a5d0) = 334
[pid   316] <... ioctl resumed>)        = 0
[pid   316] close(4 <unfinished ...>
[pid   330] <... munmap resumed>)       = 0
[pid   331] <... mprotect resumed>)     = 0
[pid   316] <... close resumed>)        = 0
[pid   316] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   313] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   313] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   316] <... futex resumed>)        = 1
[pid   316] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4
[pid   316] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   313] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   313] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   331] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   316] <... futex resumed>)        = 1
[pid   316] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5
[pid   316] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   313] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   313] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   316] <... futex resumed>)        = 1
[pid   316] ftruncate(5, 33587199)      = 0
[pid   316] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   313] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   313] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   316] <... futex resumed>)        = 1
[   27.346727][  T316] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback.
[pid   316] sendfile(4, 5, NULL, 281474978811909 <unfinished ...>
[pid   330] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   331] <... clone resumed>, parent_tid=[335], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 335
[pid   330] <... openat resumed>)       = 4
[pid   331] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   330] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   331] <... futex resumed>)        = 0
[pid   330] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
./strace-static-x86_64: Process 335 attached
[pid   335] set_robust_list(0x7f02be7eb9e0, 24) = 0
[pid   335] memfd_create("syzkaller", 0) = 3
[pid   335] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f02b63cb000
[pid   331] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   330] ioctl(4, LOOP_CLR_FD)       = 0
[pid   335] 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"..., 524288 <unfinished ...>
[pid   330] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   330] close(4./strace-static-x86_64: Process 332 attached
)                    = 0
[pid   330] close(3 <unfinished ...>
[pid   335] <... write resumed>)        = 524288
[pid   332] set_robust_list(0x7f02b644a9e0, 24 <unfinished ...>
[pid   330] <... close resumed>)        = 0
[pid   330] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 334 attached
 <unfinished ...>
[pid   332] <... set_robust_list resumed>) = 0
[pid   330] <... futex resumed>)        = 1
[pid   325] <... futex resumed>)        = 0
[pid   325] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   325] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   335] munmap(0x7f02b63cb000, 524288) = 0
[pid   332] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   330] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   335] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   334] set_robust_list(0x55555661a5e0, 24 <unfinished ...>
[pid   335] <... openat resumed>)       = 4
[pid   335] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   335] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   330] <... open resumed>)         = 3
[pid   335] <... ioctl resumed>)        = 0
[pid   330] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] <... set_robust_list resumed>) = 0
[pid   325] <... futex resumed>)        = 0
[pid   330] <... futex resumed>)        = 1
[pid   325] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   334] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   330] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   325] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   335] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   335] close(4)                    = 0
[pid   335] close(3 <unfinished ...>
[pid   334] <... prctl resumed>)        = 0
[pid   332] <... mount resumed>)        = 0
[pid   330] <... open resumed>)         = 4
[pid   334] setpgid(0, 0 <unfinished ...>
[pid   332] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   330] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 333 attached
 <unfinished ...>
[pid   334] <... setpgid resumed>)      = 0
[pid   332] <... futex resumed>)        = 1
[pid   330] <... futex resumed>)        = 1
[pid   325] <... futex resumed>)        = 0
[pid   312] <... futex resumed>)        = 0
[pid   325] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   325] <... futex resumed>)        = 0
[pid   312] <... futex resumed>)        = 0
[pid   335] <... close resumed>)        = 0
[pid   325] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   312] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   330] ftruncate(4, 33587199 <unfinished ...>
[pid   332] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   330] <... ftruncate resumed>)    = 0
[pid   332] <... open resumed>)         = 6
[pid   330] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   335] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   334] <... openat resumed>)       = 3
[pid   331] <... futex resumed>)        = 0
[pid   332] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   331] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   330] <... futex resumed>)        = 1
[pid   325] <... futex resumed>)        = 0
[pid   334] write(3, "1000", 4 <unfinished ...>
[pid   332] <... futex resumed>)        = 1
[pid   331] <... futex resumed>)        = 0
[pid   330] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   325] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] <... futex resumed>)        = 0
[pid   331] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   325] <... futex resumed>)        = 0
[pid   312] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   325] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   335] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   334] <... write resumed>)        = 4
[pid   333] set_robust_list(0x7f02b644a9e0, 24 <unfinished ...>
[pid   332] writev(6, [{iov_base="\x46\xbd\x26\x2b\x9e\x1b\xd9\xd3\x26\x37\x9b\x13\x50\x4d\xd6\xfd\xac\xc6\xcd\x5c\x17\x5a\xf2\xf8\x3d\x3a\x25\xb3\x2e\xa9\x45\xdb\x18\x66\x51\x15\x58\xa3\x92\x3f\xd7\xe7\x7e\xa6\x78\x86\xda\x01\x84\x34\x97\x0f\x86\x4b\x4c\x1a\x9c\x55\xcc\x54\xda\xf1\x12\x18\xab\x55\x1b\xe9\xde\xac\x81\xf1\x65\x69\xe1\xaa\x70\x43\x8e\xc3\x22\xed\x93\xf4\xc0\x4b\xa6\xe8\xb6\xe2\x84\x79\x03\xf8\x58\x76\xe9\x86\x0c\x5f"..., iov_len=110}, {iov_base="\xc1\x3f\x4e\x2a\xf2\x9b\xb0\x30\x8e\x36\x30\x3a\x7b\x03\x07\xff\x53\x78\x57\xa1\x6d\xd7\x4e\x47\xe6\x96\xf9\xc7\xae\xb7\x27\x65\xad\xba\xd6\x1d\x04\xf9\x3e\x4a\x5e\xb4\x13\x71\x31\x71\xdf\xd3\x73\x1b\x74\xf0\xc9\x3a\xd2\x70\x2a\x1c\x9d\x49\x28\x98\x77\x69\xf2\x25\xe4\xdc\x5d\xd8\xe8\xae\x3c\x31\xc0\x8d\x5d\x1e\x0b\x49\x27\xb0\x26\x15\x35\x2b\x6b\x55\x7b\x48\x9e\x35\x2d\x07\x87\x94\x37\x47\x8d\xc8"..., iov_len=132}, {iov_base="\x34\xee\x3a\x2c\x11\x7e\x44\x32\x79\xe6\x7b\xfc\xba\x85\xae\xb6\xdb\x8c\x5b\x21\x8f\xcc\x1d\xca\xc5\x59\xe0\x50\x48\xcd\x76\xcc\xd8\x54\xd7\x37\xc4\x62\x2b\xc8\xc9\xb8\x2f\x51\x77\xf2\x27\x84\x1f\xe1\xf5\x3f\x0f\x8f\x7c\x3a\x80\x03\x7c\xcb\x36\xb4\x17\x6e\xbe\x9a\xe1\x11\xe8\x40\xd9\xaa\xeb\x99\xb6\xf2\x46\xea\xc6\x9a\x85\xa3\xb5\x2a\xff\x52\x0e\x11\x30\xdd\x72\x1b\xa2\x94\xe5\x5b\xcf\x3b\xdb\xba"..., iov_len=107}, {iov_base="\x6f\x90\x8a\xac\xf0\xcd\x92\x31\x69\xf3\x7d\xc7\x3a\x11\xe2\x5b\x26\x19\xc4\xd9\x1a\x04\xf2\x63\xb3\xae\xa7\xf4\xfd\x5f\x01\xe6\x24\x96\xe4\x4b\x83\x1e\xdd\x5d\x30\x8a\x6c\x79\xe7\xc4\x59\x94\x23\x86\x48\x8a\xd9\x3a\xe3\x73\x40\x83\x57\xbd\x80\x46\xdf\x53\x40\x7d\x3d\x76\x32\x45\x45\x98\x58\x72\x63\x6d\x29\xbb\xf1\x30\xa5\xff\x4b\x4a\x57\x85\x84\xc8\x24\x5c\x5a\x12\x7c\xb3\x6c\x64\x5b\xb3\x4c\x74"..., iov_len=176}, {iov_base="\xd3\x25\xd5\x12\x13\x6e\xfa\xc1\x9c\x33\x47\x09\xcf\x13\xf9\xa9\xac\x3d\x2d\x36\x20\x64\x0a\x56\xdf\x58\xa5\x62\xea\x3d\x18\x2f\xfa\x18\xdc\x34\x7b\xdd\x8f\xcb\x18\xbb\x6f\x22\x3b\x6f\xe0\xc6\x40\xbf\x1b\xd8\xa3\x55\xb0\x41\xab\xa3\x3b\x90\x0c\x45\x25\xff\x33\xe2\x0e\x34\x9f\xd2\xba\x0b\x3e\x61\x10\xfe\x0e\x4e\x57\x8b\x0b\x20\x65\xd2\x91\x95\x3e\x5c\x09\x2a\x9f\x20\x6e\x04\xe8\xe8\x2b\x1a\xc7\x1b"..., iov_len=574}], 5 <unfinished ...>
[pid   330] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   312] <... futex resumed>)        = 0
[pid   335] <... open resumed>)         = 3
[pid   312] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   335] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   331] <... futex resumed>)        = 0
[pid   330] sendfile(3, 4, NULL, 281474978811909 <unfinished ...>
[pid   335] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   331] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   335] <... open resumed>)         = 4
[pid   331] <... futex resumed>)        = 0
[pid   331] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   335] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   331] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   331] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   335] <... futex resumed>)        = 0
[pid   331] <... futex resumed>)        = 0
[pid   335] ftruncate(4, 33587199 <unfinished ...>
[pid   331] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   332] <... writev resumed>)       = 1099
[pid   335] <... ftruncate resumed>)    = 0
[pid   335] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] close(3 <unfinished ...>
[pid   332] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   335] <... futex resumed>)        = 1
[pid   331] <... futex resumed>)        = 0
[pid   335] sendfile(3, 4, NULL, 281474978811909 <unfinished ...>
[pid   331] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   331] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   312] <... futex resumed>)        = 0
[pid   332] <... futex resumed>)        = 1
[pid   334] <... close resumed>)        = 0
[pid   333] <... set_robust_list resumed>) = 0
[pid   334] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   332] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   333] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   334] <... futex resumed>)        = 0
[pid   317] <... sendfile resumed>)     = 376832
[pid   333] <... mount resumed>)        = 0
[pid   334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   317] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   333] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] <... mmap resumed>)         = 0x7f02be7cb000
[pid   333] <... futex resumed>)        = 1
[pid   317] <... futex resumed>)        = 0
[pid   314] <... futex resumed>)        = 0
[pid   316] <... sendfile resumed>)     = 376832
[pid   316] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   313] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   313] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   316] <... futex resumed>)        = 1
[pid   316] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL) = 0
[pid   316] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   313] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   313] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   316] <... futex resumed>)        = 1
[pid   316] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 6
[pid   316] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   313] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   313] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   316] <... futex resumed>)        = 1
[pid   316] writev(6, [{iov_base="\x46\xbd\x26\x2b\x9e\x1b\xd9\xd3\x26\x37\x9b\x13\x50\x4d\xd6\xfd\xac\xc6\xcd\x5c\x17\x5a\xf2\xf8\x3d\x3a\x25\xb3\x2e\xa9\x45\xdb\x18\x66\x51\x15\x58\xa3\x92\x3f\xd7\xe7\x7e\xa6\x78\x86\xda\x01\x84\x34\x97\x0f\x86\x4b\x4c\x1a\x9c\x55\xcc\x54\xda\xf1\x12\x18\xab\x55\x1b\xe9\xde\xac\x81\xf1\x65\x69\xe1\xaa\x70\x43\x8e\xc3\x22\xed\x93\xf4\xc0\x4b\xa6\xe8\xb6\xe2\x84\x79\x03\xf8\x58\x76\xe9\x86\x0c\x5f"..., iov_len=110}, {iov_base="\xc1\x3f\x4e\x2a\xf2\x9b\xb0\x30\x8e\x36\x30\x3a\x7b\x03\x07\xff\x53\x78\x57\xa1\x6d\xd7\x4e\x47\xe6\x96\xf9\xc7\xae\xb7\x27\x65\xad\xba\xd6\x1d\x04\xf9\x3e\x4a\x5e\xb4\x13\x71\x31\x71\xdf\xd3\x73\x1b\x74\xf0\xc9\x3a\xd2\x70\x2a\x1c\x9d\x49\x28\x98\x77\x69\xf2\x25\xe4\xdc\x5d\xd8\xe8\xae\x3c\x31\xc0\x8d\x5d\x1e\x0b\x49\x27\xb0\x26\x15\x35\x2b\x6b\x55\x7b\x48\x9e\x35\x2d\x07\x87\x94\x37\x47\x8d\xc8"..., iov_len=132}, {iov_base="\x34\xee\x3a\x2c\x11\x7e\x44\x32\x79\xe6\x7b\xfc\xba\x85\xae\xb6\xdb\x8c\x5b\x21\x8f\xcc\x1d\xca\xc5\x59\xe0\x50\x48\xcd\x76\xcc\xd8\x54\xd7\x37\xc4\x62\x2b\xc8\xc9\xb8\x2f\x51\x77\xf2\x27\x84\x1f\xe1\xf5\x3f\x0f\x8f\x7c\x3a\x80\x03\x7c\xcb\x36\xb4\x17\x6e\xbe\x9a\xe1\x11\xe8\x40\xd9\xaa\xeb\x99\xb6\xf2\x46\xea\xc6\x9a\x85\xa3\xb5\x2a\xff\x52\x0e\x11\x30\xdd\x72\x1b\xa2\x94\xe5\x5b\xcf\x3b\xdb\xba"..., iov_len=107}, {iov_base="\x6f\x90\x8a\xac\xf0\xcd\x92\x31\x69\xf3\x7d\xc7\x3a\x11\xe2\x5b\x26\x19\xc4\xd9\x1a\x04\xf2\x63\xb3\xae\xa7\xf4\xfd\x5f\x01\xe6\x24\x96\xe4\x4b\x83\x1e\xdd\x5d\x30\x8a\x6c\x79\xe7\xc4\x59\x94\x23\x86\x48\x8a\xd9\x3a\xe3\x73\x40\x83\x57\xbd\x80\x46\xdf\x53\x40\x7d\x3d\x76\x32\x45\x45\x98\x58\x72\x63\x6d\x29\xbb\xf1\x30\xa5\xff\x4b\x4a\x57\x85\x84\xc8\x24\x5c\x5a\x12\x7c\xb3\x6c\x64\x5b\xb3\x4c\x74"..., iov_len=176}, {iov_base="\xd3\x25\xd5\x12\x13\x6e\xfa\xc1\x9c\x33\x47\x09\xcf\x13\xf9\xa9\xac\x3d\x2d\x36\x20\x64\x0a\x56\xdf\x58\xa5\x62\xea\x3d\x18\x2f\xfa\x18\xdc\x34\x7b\xdd\x8f\xcb\x18\xbb\x6f\x22\x3b\x6f\xe0\xc6\x40\xbf\x1b\xd8\xa3\x55\xb0\x41\xab\xa3\x3b\x90\x0c\x45\x25\xff\x33\xe2\x0e\x34\x9f\xd2\xba\x0b\x3e\x61\x10\xfe\x0e\x4e\x57\x8b\x0b\x20\x65\xd2\x91\x95\x3e\x5c\x09\x2a\x9f\x20\x6e\x04\xe8\xe8\x2b\x1a\xc7\x1b"..., iov_len=574}], 5) = 1099
[pid   316] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   313] exit_group(0)               = ?
[pid   316] <... futex resumed>)        = ?
[pid   316] +++ exited with 0 +++
[pid   313] +++ exited with 0 +++
[pid   314] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=313, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   314] <... futex resumed>)        = 0
[pid   314] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   334] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   333] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   317] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   300] <... openat resumed>)       = 3
[pid   334] <... mprotect resumed>)     = 0
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   317] <... open resumed>)         = 6
[pid   300] <... ioctl resumed>)        = 0
[pid   300] close(3)                    = 0
[pid   334] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   317] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661a5d0) = 337
[pid   314] <... futex resumed>)        = 0
[pid   334] <... clone resumed>, parent_tid=[338], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 338
[pid   317] <... futex resumed>)        = 1
[pid   314] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   334] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   317] writev(6, [{iov_base="\x46\xbd\x26\x2b\x9e\x1b\xd9\xd3\x26\x37\x9b\x13\x50\x4d\xd6\xfd\xac\xc6\xcd\x5c\x17\x5a\xf2\xf8\x3d\x3a\x25\xb3\x2e\xa9\x45\xdb\x18\x66\x51\x15\x58\xa3\x92\x3f\xd7\xe7\x7e\xa6\x78\x86\xda\x01\x84\x34\x97\x0f\x86\x4b\x4c\x1a\x9c\x55\xcc\x54\xda\xf1\x12\x18\xab\x55\x1b\xe9\xde\xac\x81\xf1\x65\x69\xe1\xaa\x70\x43\x8e\xc3\x22\xed\x93\xf4\xc0\x4b\xa6\xe8\xb6\xe2\x84\x79\x03\xf8\x58\x76\xe9\x86\x0c\x5f"..., iov_len=110}, {iov_base="\xc1\x3f\x4e\x2a\xf2\x9b\xb0\x30\x8e\x36\x30\x3a\x7b\x03\x07\xff\x53\x78\x57\xa1\x6d\xd7\x4e\x47\xe6\x96\xf9\xc7\xae\xb7\x27\x65\xad\xba\xd6\x1d\x04\xf9\x3e\x4a\x5e\xb4\x13\x71\x31\x71\xdf\xd3\x73\x1b\x74\xf0\xc9\x3a\xd2\x70\x2a\x1c\x9d\x49\x28\x98\x77\x69\xf2\x25\xe4\xdc\x5d\xd8\xe8\xae\x3c\x31\xc0\x8d\x5d\x1e\x0b\x49\x27\xb0\x26\x15\x35\x2b\x6b\x55\x7b\x48\x9e\x35\x2d\x07\x87\x94\x37\x47\x8d\xc8"..., iov_len=132}, {iov_base="\x34\xee\x3a\x2c\x11\x7e\x44\x32\x79\xe6\x7b\xfc\xba\x85\xae\xb6\xdb\x8c\x5b\x21\x8f\xcc\x1d\xca\xc5\x59\xe0\x50\x48\xcd\x76\xcc\xd8\x54\xd7\x37\xc4\x62\x2b\xc8\xc9\xb8\x2f\x51\x77\xf2\x27\x84\x1f\xe1\xf5\x3f\x0f\x8f\x7c\x3a\x80\x03\x7c\xcb\x36\xb4\x17\x6e\xbe\x9a\xe1\x11\xe8\x40\xd9\xaa\xeb\x99\xb6\xf2\x46\xea\xc6\x9a\x85\xa3\xb5\x2a\xff\x52\x0e\x11\x30\xdd\x72\x1b\xa2\x94\xe5\x5b\xcf\x3b\xdb\xba"..., iov_len=107}, {iov_base="\x6f\x90\x8a\xac\xf0\xcd\x92\x31\x69\xf3\x7d\xc7\x3a\x11\xe2\x5b\x26\x19\xc4\xd9\x1a\x04\xf2\x63\xb3\xae\xa7\xf4\xfd\x5f\x01\xe6\x24\x96\xe4\x4b\x83\x1e\xdd\x5d\x30\x8a\x6c\x79\xe7\xc4\x59\x94\x23\x86\x48\x8a\xd9\x3a\xe3\x73\x40\x83\x57\xbd\x80\x46\xdf\x53\x40\x7d\x3d\x76\x32\x45\x45\x98\x58\x72\x63\x6d\x29\xbb\xf1\x30\xa5\xff\x4b\x4a\x57\x85\x84\xc8\x24\x5c\x5a\x12\x7c\xb3\x6c\x64\x5b\xb3\x4c\x74"..., iov_len=176}, {iov_base="\xd3\x25\xd5\x12\x13\x6e\xfa\xc1\x9c\x33\x47\x09\xcf\x13\xf9\xa9\xac\x3d\x2d\x36\x20\x64\x0a\x56\xdf\x58\xa5\x62\xea\x3d\x18\x2f\xfa\x18\xdc\x34\x7b\xdd\x8f\xcb\x18\xbb\x6f\x22\x3b\x6f\xe0\xc6\x40\xbf\x1b\xd8\xa3\x55\xb0\x41\xab\xa3\x3b\x90\x0c\x45\x25\xff\x33\xe2\x0e\x34\x9f\xd2\xba\x0b\x3e\x61\x10\xfe\x0e\x4e\x57\x8b\x0b\x20\x65\xd2\x91\x95\x3e\x5c\x09\x2a\x9f\x20\x6e\x04\xe8\xe8\x2b\x1a\xc7\x1b"..., iov_len=574}], 5 <unfinished ...>
[pid   334] <... futex resumed>)        = 0
[pid   314] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   334] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   317] <... writev resumed>)       = 1099
[pid   317] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   314] <... futex resumed>)        = 0
[pid   314] exit_group(0)               = ?
[pid   333] <... futex resumed>)        = ?
[pid   333] +++ exited with 0 +++
./strace-static-x86_64: Process 337 attached
[pid   337] set_robust_list(0x55555661a5e0, 24) = 0
[pid   337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   337] setpgid(0, 0)               = 0
[pid   337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   337] write(3, "1000", 4)         = 4
[pid   337] close(3)                    = 0
[pid   337] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02be7cb000
[pid   337] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   337] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[339], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 339
[pid   337] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   337] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 339 attached
 <unfinished ...>
[pid   339] set_robust_list(0x7f02be7eb9e0, 24) = 0
[pid   339] memfd_create("syzkaller", 0) = 3
[pid   339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f02b63cb000
[pid   339] 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"..., 524288) = 524288
[pid   339] munmap(0x7f02b63cb000, 524288) = 0
[pid   339] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   339] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   339] ioctl(4, LOOP_CLR_FD)       = 0
[pid   339] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   339] close(4)                    = 0
[pid   339] close(3)                    = 0
[pid   339] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   337] <... futex resumed>)        = 0
[pid   337] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   339] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   337] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   339] <... open resumed>)         = 3
[pid   339] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   337] <... futex resumed>)        = 0
[pid   339] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   337] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   339] <... open resumed>)         = 4
[pid   337] <... futex resumed>)        = 0
[pid   339] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   339] <... futex resumed>)        = 0
[pid   339] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   337] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   339] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   337] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   339] ftruncate(4, 33587199 <unfinished ...>
[pid   337] <... futex resumed>)        = 0
[pid   337] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 338 attached
 <unfinished ...>
[pid   325] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   317] +++ exited with 0 +++
[pid   314] +++ exited with 0 +++
[pid   325] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=314, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   325] <... futex resumed>)        = 0
[pid   325] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02b642a000
[pid   299] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   325] mprotect(0x7f02b642b000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   299] <... openat resumed>)       = 3
[pid   325] <... mprotect resumed>)     = 0
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   325] clone(child_stack=0x7f02b644a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   299] <... ioctl resumed>)        = 0
[pid   299] close(3 <unfinished ...>
[pid   325] <... clone resumed>, parent_tid=[340], tls=0x7f02b644a700, child_tidptr=0x7f02b644a9d0) = 340
[pid   299] <... close resumed>)        = 0
[pid   325] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   331] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   325] <... futex resumed>)        = 0
[pid   331] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} <unfinished ...>
[pid   325] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] <... clone resumed>, child_tidptr=0x55555661a5d0) = 341
[pid   331] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   331] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02b642a000
[pid   331] mprotect(0x7f02b642b000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   331] clone(child_stack=0x7f02b644a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[342], tls=0x7f02b644a700, child_tidptr=0x7f02b644a9d0) = 342
[pid   331] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   27.442310][  T319] EXT4-fs error (device loop3): ext4_map_blocks:731: inode #18: block 491: comm syz-executor160: lblock 347 mapped to illegal pblock 491 (length 1)
[pid   331] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   339] <... ftruncate resumed>)    = 0
[pid   339] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 342 attached
./strace-static-x86_64: Process 341 attached
./strace-static-x86_64: Process 340 attached
) = 1
[pid   338] set_robust_list(0x7f02be7eb9e0, 24 <unfinished ...>
[pid   337] <... futex resumed>)        = 0
[pid   319] <... sendfile resumed>)     = 327680
[pid   342] set_robust_list(0x7f02b644a9e0, 24 <unfinished ...>
[pid   341] set_robust_list(0x55555661a5e0, 24 <unfinished ...>
[pid   340] set_robust_list(0x7f02b644a9e0, 24 <unfinished ...>
[pid   339] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   338] <... set_robust_list resumed>) = 0
[pid   337] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   319] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] exit_group(0 <unfinished ...>
[pid   342] <... set_robust_list resumed>) = 0
[pid   341] <... set_robust_list resumed>) = 0
[pid   340] <... set_robust_list resumed>) = 0
[pid   339] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   338] memfd_create("syzkaller", 0 <unfinished ...>
[pid   337] <... futex resumed>)        = 0
[pid   332] <... futex resumed>)        = ?
[pid   319] <... futex resumed>)        = ?
[pid   312] <... exit_group resumed>)   = ?
[pid   342] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   341] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   340] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   339] sendfile(3, 4, NULL, 281474978811909 <unfinished ...>
[pid   338] <... memfd_create resumed>) = 3
[pid   337] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   332] +++ exited with 0 +++
[pid   319] +++ exited with 0 +++
[pid   341] <... prctl resumed>)        = 0
[pid   338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   341] setpgid(0, 0 <unfinished ...>
[pid   338] <... mmap resumed>)         = 0x7f02b63cb000
[pid   341] <... setpgid resumed>)      = 0
[pid   338] 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"..., 524288 <unfinished ...>
[pid   341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   338] <... write resumed>)        = 524288
[pid   341] <... openat resumed>)       = 3
[pid   341] write(3, "1000", 4 <unfinished ...>
[pid   338] munmap(0x7f02b63cb000, 524288 <unfinished ...>
[pid   341] <... write resumed>)        = 4
[pid   341] close(3 <unfinished ...>
[pid   338] <... munmap resumed>)       = 0
[pid   341] <... close resumed>)        = 0
[pid   341] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   338] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   341] <... futex resumed>)        = 0
[pid   341] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   338] <... openat resumed>)       = 4
[pid   341] <... mmap resumed>)         = 0x7f02be7cb000
[pid   341] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   338] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   341] <... mprotect resumed>)     = 0
[pid   338] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   341] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   338] ioctl(4, LOOP_CLR_FD)       = 0
[pid   341] <... clone resumed>, parent_tid=[343], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 343
[pid   341] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   341] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   338] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   338] close(4)                    = 0
[pid   338] close(3 <unfinished ...>
[pid   342] <... mount resumed>)        = 0
[pid   340] <... mount resumed>)        = 0
[pid   338] <... close resumed>)        = 0
[pid   340] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   340] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   325] <... futex resumed>)        = 0
[pid   342] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   325] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   338] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   340] <... futex resumed>)        = 0
[pid   325] <... futex resumed>)        = 1
[pid   340] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   325] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   342] <... futex resumed>)        = 1
[pid   338] <... futex resumed>)        = 1
[pid   334] <... futex resumed>)        = 0
[pid   331] <... futex resumed>)        = 0
[pid   340] <... open resumed>)         = 5
[pid   342] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   338] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   331] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   340] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   340] <... futex resumed>)        = 1
[pid   334] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   331] <... futex resumed>)        = 0
[pid   325] <... futex resumed>)        = 0
[pid   342] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   340] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   338] <... futex resumed>)        = 0
[pid   334] <... futex resumed>)        = 1
[pid   338] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   331] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   340] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   338] <... open resumed>)         = 3
[pid   325] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   340] writev(5, [{iov_base="\x46\xbd\x26\x2b\x9e\x1b\xd9\xd3\x26\x37\x9b\x13\x50\x4d\xd6\xfd\xac\xc6\xcd\x5c\x17\x5a\xf2\xf8\x3d\x3a\x25\xb3\x2e\xa9\x45\xdb\x18\x66\x51\x15\x58\xa3\x92\x3f\xd7\xe7\x7e\xa6\x78\x86\xda\x01\x84\x34\x97\x0f\x86\x4b\x4c\x1a\x9c\x55\xcc\x54\xda\xf1\x12\x18\xab\x55\x1b\xe9\xde\xac\x81\xf1\x65\x69\xe1\xaa\x70\x43\x8e\xc3\x22\xed\x93\xf4\xc0\x4b\xa6\xe8\xb6\xe2\x84\x79\x03\xf8\x58\x76\xe9\x86\x0c\x5f"..., iov_len=110}, {iov_base="\xc1\x3f\x4e\x2a\xf2\x9b\xb0\x30\x8e\x36\x30\x3a\x7b\x03\x07\xff\x53\x78\x57\xa1\x6d\xd7\x4e\x47\xe6\x96\xf9\xc7\xae\xb7\x27\x65\xad\xba\xd6\x1d\x04\xf9\x3e\x4a\x5e\xb4\x13\x71\x31\x71\xdf\xd3\x73\x1b\x74\xf0\xc9\x3a\xd2\x70\x2a\x1c\x9d\x49\x28\x98\x77\x69\xf2\x25\xe4\xdc\x5d\xd8\xe8\xae\x3c\x31\xc0\x8d\x5d\x1e\x0b\x49\x27\xb0\x26\x15\x35\x2b\x6b\x55\x7b\x48\x9e\x35\x2d\x07\x87\x94\x37\x47\x8d\xc8"..., iov_len=132}, {iov_base="\x34\xee\x3a\x2c\x11\x7e\x44\x32\x79\xe6\x7b\xfc\xba\x85\xae\xb6\xdb\x8c\x5b\x21\x8f\xcc\x1d\xca\xc5\x59\xe0\x50\x48\xcd\x76\xcc\xd8\x54\xd7\x37\xc4\x62\x2b\xc8\xc9\xb8\x2f\x51\x77\xf2\x27\x84\x1f\xe1\xf5\x3f\x0f\x8f\x7c\x3a\x80\x03\x7c\xcb\x36\xb4\x17\x6e\xbe\x9a\xe1\x11\xe8\x40\xd9\xaa\xeb\x99\xb6\xf2\x46\xea\xc6\x9a\x85\xa3\xb5\x2a\xff\x52\x0e\x11\x30\xdd\x72\x1b\xa2\x94\xe5\x5b\xcf\x3b\xdb\xba"..., iov_len=107}, {iov_base="\x6f\x90\x8a\xac\xf0\xcd\x92\x31\x69\xf3\x7d\xc7\x3a\x11\xe2\x5b\x26\x19\xc4\xd9\x1a\x04\xf2\x63\xb3\xae\xa7\xf4\xfd\x5f\x01\xe6\x24\x96\xe4\x4b\x83\x1e\xdd\x5d\x30\x8a\x6c\x79\xe7\xc4\x59\x94\x23\x86\x48\x8a\xd9\x3a\xe3\x73\x40\x83\x57\xbd\x80\x46\xdf\x53\x40\x7d\x3d\x76\x32\x45\x45\x98\x58\x72\x63\x6d\x29\xbb\xf1\x30\xa5\xff\x4b\x4a\x57\x85\x84\xc8\x24\x5c\x5a\x12\x7c\xb3\x6c\x64\x5b\xb3\x4c\x74"..., iov_len=176}, {iov_base="\xd3\x25\xd5\x12\x13\x6e\xfa\xc1\x9c\x33\x47\x09\xcf\x13\xf9\xa9\xac\x3d\x2d\x36\x20\x64\x0a\x56\xdf\x58\xa5\x62\xea\x3d\x18\x2f\xfa\x18\xdc\x34\x7b\xdd\x8f\xcb\x18\xbb\x6f\x22\x3b\x6f\xe0\xc6\x40\xbf\x1b\xd8\xa3\x55\xb0\x41\xab\xa3\x3b\x90\x0c\x45\x25\xff\x33\xe2\x0e\x34\x9f\xd2\xba\x0b\x3e\x61\x10\xfe\x0e\x4e\x57\x8b\x0b\x20\x65\xd2\x91\x95\x3e\x5c\x09\x2a\x9f\x20\x6e\x04\xe8\xe8\x2b\x1a\xc7\x1b"..., iov_len=574}], 5 <unfinished ...>
[pid   338] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   325] <... futex resumed>)        = 0
[pid   338] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   325] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   340] <... writev resumed>)       = 1099
[pid   342] <... open resumed>)         = 5
[pid   342] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   340] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   342] <... futex resumed>)        = 1
[pid   340] <... futex resumed>)        = 1
[pid   331] <... futex resumed>)        = 0
[pid   325] <... futex resumed>)        = 0
[pid   342] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   340] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   334] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   331] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   334] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   331] <... futex resumed>)        = 0
[pid   342] writev(5, [{iov_base="\x46\xbd\x26\x2b\x9e\x1b\xd9\xd3\x26\x37\x9b\x13\x50\x4d\xd6\xfd\xac\xc6\xcd\x5c\x17\x5a\xf2\xf8\x3d\x3a\x25\xb3\x2e\xa9\x45\xdb\x18\x66\x51\x15\x58\xa3\x92\x3f\xd7\xe7\x7e\xa6\x78\x86\xda\x01\x84\x34\x97\x0f\x86\x4b\x4c\x1a\x9c\x55\xcc\x54\xda\xf1\x12\x18\xab\x55\x1b\xe9\xde\xac\x81\xf1\x65\x69\xe1\xaa\x70\x43\x8e\xc3\x22\xed\x93\xf4\xc0\x4b\xa6\xe8\xb6\xe2\x84\x79\x03\xf8\x58\x76\xe9\x86\x0c\x5f"..., iov_len=110}, {iov_base="\xc1\x3f\x4e\x2a\xf2\x9b\xb0\x30\x8e\x36\x30\x3a\x7b\x03\x07\xff\x53\x78\x57\xa1\x6d\xd7\x4e\x47\xe6\x96\xf9\xc7\xae\xb7\x27\x65\xad\xba\xd6\x1d\x04\xf9\x3e\x4a\x5e\xb4\x13\x71\x31\x71\xdf\xd3\x73\x1b\x74\xf0\xc9\x3a\xd2\x70\x2a\x1c\x9d\x49\x28\x98\x77\x69\xf2\x25\xe4\xdc\x5d\xd8\xe8\xae\x3c\x31\xc0\x8d\x5d\x1e\x0b\x49\x27\xb0\x26\x15\x35\x2b\x6b\x55\x7b\x48\x9e\x35\x2d\x07\x87\x94\x37\x47\x8d\xc8"..., iov_len=132}, {iov_base="\x34\xee\x3a\x2c\x11\x7e\x44\x32\x79\xe6\x7b\xfc\xba\x85\xae\xb6\xdb\x8c\x5b\x21\x8f\xcc\x1d\xca\xc5\x59\xe0\x50\x48\xcd\x76\xcc\xd8\x54\xd7\x37\xc4\x62\x2b\xc8\xc9\xb8\x2f\x51\x77\xf2\x27\x84\x1f\xe1\xf5\x3f\x0f\x8f\x7c\x3a\x80\x03\x7c\xcb\x36\xb4\x17\x6e\xbe\x9a\xe1\x11\xe8\x40\xd9\xaa\xeb\x99\xb6\xf2\x46\xea\xc6\x9a\x85\xa3\xb5\x2a\xff\x52\x0e\x11\x30\xdd\x72\x1b\xa2\x94\xe5\x5b\xcf\x3b\xdb\xba"..., iov_len=107}, {iov_base="\x6f\x90\x8a\xac\xf0\xcd\x92\x31\x69\xf3\x7d\xc7\x3a\x11\xe2\x5b\x26\x19\xc4\xd9\x1a\x04\xf2\x63\xb3\xae\xa7\xf4\xfd\x5f\x01\xe6\x24\x96\xe4\x4b\x83\x1e\xdd\x5d\x30\x8a\x6c\x79\xe7\xc4\x59\x94\x23\x86\x48\x8a\xd9\x3a\xe3\x73\x40\x83\x57\xbd\x80\x46\xdf\x53\x40\x7d\x3d\x76\x32\x45\x45\x98\x58\x72\x63\x6d\x29\xbb\xf1\x30\xa5\xff\x4b\x4a\x57\x85\x84\xc8\x24\x5c\x5a\x12\x7c\xb3\x6c\x64\x5b\xb3\x4c\x74"..., iov_len=176}, {iov_base="\xd3\x25\xd5\x12\x13\x6e\xfa\xc1\x9c\x33\x47\x09\xcf\x13\xf9\xa9\xac\x3d\x2d\x36\x20\x64\x0a\x56\xdf\x58\xa5\x62\xea\x3d\x18\x2f\xfa\x18\xdc\x34\x7b\xdd\x8f\xcb\x18\xbb\x6f\x22\x3b\x6f\xe0\xc6\x40\xbf\x1b\xd8\xa3\x55\xb0\x41\xab\xa3\x3b\x90\x0c\x45\x25\xff\x33\xe2\x0e\x34\x9f\xd2\xba\x0b\x3e\x61\x10\xfe\x0e\x4e\x57\x8b\x0b\x20\x65\xd2\x91\x95\x3e\x5c\x09\x2a\x9f\x20\x6e\x04\xe8\xe8\x2b\x1a\xc7\x1b"..., iov_len=574}], 5 <unfinished ...>
[pid   338] <... futex resumed>)        = 0
[pid   334] <... futex resumed>)        = 1
[pid   331] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   338] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   342] <... writev resumed>)       = 1099
[pid   338] <... open resumed>)         = 4
[pid   334] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   338] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   338] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 343 attached
 <unfinished ...>
[pid   343] set_robust_list(0x7f02be7eb9e0, 24) = 0
[pid   342] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   342] <... futex resumed>)        = 1
[pid   334] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   331] <... futex resumed>)        = 0
[pid   342] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   338] <... futex resumed>)        = 0
[pid   334] <... futex resumed>)        = 1
[pid   338] ftruncate(4, 33587199 <unfinished ...>
[pid   334] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   338] <... ftruncate resumed>)    = -1 EINVAL (Invalid argument)
[pid   338] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   334] <... futex resumed>)        = 0
[pid   338] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   334] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   338] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   334] <... futex resumed>)        = 0
[pid   338] sendfile(3, 4, NULL, 281474978811909 <unfinished ...>
[pid   334] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   343] memfd_create("syzkaller", 0) = 3
[pid   343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f02b63cb000
[pid   343] 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"..., 524288) = 524288
[pid   343] munmap(0x7f02b63cb000, 524288) = 0
[pid   343] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   343] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   343] ioctl(4, LOOP_CLR_FD)       = 0
[   27.481615][  T319] EXT4-fs error (device loop3): __ext4_get_inode_loc:4492: comm syz-executor160: Invalid inode table block 5 in block_group 0
[   27.499434][  T312] ------------[ cut here ]------------
[   27.504717][  T312] kernel BUG at fs/ext4/ext4.h:3331!
[   27.539833][  T312] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   27.545743][  T312] CPU: 1 PID: 312 Comm: syz-executor160 Not tainted 6.1.25-syzkaller-00226-g7d346b229c78 #0
[   27.555632][  T312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
[   27.565533][  T312] RIP: 0010:ext4_mb_load_buddy_gfp+0xef8/0xf10
[pid   338] <... sendfile resumed>)     = 524288
[pid   338] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] <... futex resumed>)        = 0
[pid   334] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   334] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   338] <... futex resumed>)        = 1
[pid   338] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid   338] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] <... futex resumed>)        = 0
[pid   334] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   334] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   338] <... futex resumed>)        = 1
[pid   338] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid   338] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] <... futex resumed>)        = 0
[pid   334] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   334] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   338] <... futex resumed>)        = 1
[pid   338] writev(5, [{iov_base="\x46\xbd\x26\x2b\x9e\x1b\xd9\xd3\x26\x37\x9b\x13\x50\x4d\xd6\xfd\xac\xc6\xcd\x5c\x17\x5a\xf2\xf8\x3d\x3a\x25\xb3\x2e\xa9\x45\xdb\x18\x66\x51\x15\x58\xa3\x92\x3f\xd7\xe7\x7e\xa6\x78\x86\xda\x01\x84\x34\x97\x0f\x86\x4b\x4c\x1a\x9c\x55\xcc\x54\xda\xf1\x12\x18\xab\x55\x1b\xe9\xde\xac\x81\xf1\x65\x69\xe1\xaa\x70\x43\x8e\xc3\x22\xed\x93\xf4\xc0\x4b\xa6\xe8\xb6\xe2\x84\x79\x03\xf8\x58\x76\xe9\x86\x0c\x5f"..., iov_len=110}, {iov_base="\xc1\x3f\x4e\x2a\xf2\x9b\xb0\x30\x8e\x36\x30\x3a\x7b\x03\x07\xff\x53\x78\x57\xa1\x6d\xd7\x4e\x47\xe6\x96\xf9\xc7\xae\xb7\x27\x65\xad\xba\xd6\x1d\x04\xf9\x3e\x4a\x5e\xb4\x13\x71\x31\x71\xdf\xd3\x73\x1b\x74\xf0\xc9\x3a\xd2\x70\x2a\x1c\x9d\x49\x28\x98\x77\x69\xf2\x25\xe4\xdc\x5d\xd8\xe8\xae\x3c\x31\xc0\x8d\x5d\x1e\x0b\x49\x27\xb0\x26\x15\x35\x2b\x6b\x55\x7b\x48\x9e\x35\x2d\x07\x87\x94\x37\x47\x8d\xc8"..., iov_len=132}, {iov_base="\x34\xee\x3a\x2c\x11\x7e\x44\x32\x79\xe6\x7b\xfc\xba\x85\xae\xb6\xdb\x8c\x5b\x21\x8f\xcc\x1d\xca\xc5\x59\xe0\x50\x48\xcd\x76\xcc\xd8\x54\xd7\x37\xc4\x62\x2b\xc8\xc9\xb8\x2f\x51\x77\xf2\x27\x84\x1f\xe1\xf5\x3f\x0f\x8f\x7c\x3a\x80\x03\x7c\xcb\x36\xb4\x17\x6e\xbe\x9a\xe1\x11\xe8\x40\xd9\xaa\xeb\x99\xb6\xf2\x46\xea\xc6\x9a\x85\xa3\xb5\x2a\xff\x52\x0e\x11\x30\xdd\x72\x1b\xa2\x94\xe5\x5b\xcf\x3b\xdb\xba"..., iov_len=107}, {iov_base="\x6f\x90\x8a\xac\xf0\xcd\x92\x31\x69\xf3\x7d\xc7\x3a\x11\xe2\x5b\x26\x19\xc4\xd9\x1a\x04\xf2\x63\xb3\xae\xa7\xf4\xfd\x5f\x01\xe6\x24\x96\xe4\x4b\x83\x1e\xdd\x5d\x30\x8a\x6c\x79\xe7\xc4\x59\x94\x23\x86\x48\x8a\xd9\x3a\xe3\x73\x40\x83\x57\xbd\x80\x46\xdf\x53\x40\x7d\x3d\x76\x32\x45\x45\x98\x58\x72\x63\x6d\x29\xbb\xf1\x30\xa5\xff\x4b\x4a\x57\x85\x84\xc8\x24\x5c\x5a\x12\x7c\xb3\x6c\x64\x5b\xb3\x4c\x74"..., iov_len=176}, {iov_base="\xd3\x25\xd5\x12\x13\x6e\xfa\xc1\x9c\x33\x47\x09\xcf\x13\xf9\xa9\xac\x3d\x2d\x36\x20\x64\x0a\x56\xdf\x58\xa5\x62\xea\x3d\x18\x2f\xfa\x18\xdc\x34\x7b\xdd\x8f\xcb\x18\xbb\x6f\x22\x3b\x6f\xe0\xc6\x40\xbf\x1b\xd8\xa3\x55\xb0\x41\xab\xa3\x3b\x90\x0c\x45\x25\xff\x33\xe2\x0e\x34\x9f\xd2\xba\x0b\x3e\x61\x10\xfe\x0e\x4e\x57\x8b\x0b\x20\x65\xd2\x91\x95\x3e\x5c\x09\x2a\x9f\x20\x6e\x04\xe8\xe8\x2b\x1a\xc7\x1b"..., iov_len=574}], 5) = 1099
[pid   338] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] <... futex resumed>)        = 0
[pid   334] exit_group(0)               = ?
[pid   338] <... futex resumed>)        = ?
[pid   338] +++ exited with 0 +++
[pid   334] +++ exited with 0 +++
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=334, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   298] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   298] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   298] ioctl(3, LOOP_CLR_FD)       = 0
[pid   298] close(3)                    = 0
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661a5d0) = 344
./strace-static-x86_64: Process 344 attached
[pid   344] set_robust_list(0x55555661a5e0, 24) = 0
[pid   344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   344] setpgid(0, 0)               = 0
[pid   344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   344] write(3, "1000", 4)         = 4
[pid   344] close(3)                    = 0
[pid   344] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   344] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02be7cb000
[pid   344] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   344] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[345], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 345
[pid   344] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   344] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 345 attached
 <unfinished ...>
[pid   345] set_robust_list(0x7f02be7eb9e0, 24) = 0
[pid   345] memfd_create("syzkaller", 0) = 3
[pid   345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f02b63cb000
[pid   345] 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"..., 524288) = 524288
[pid   345] munmap(0x7f02b63cb000, 524288) = 0
[pid   345] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   345] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   345] ioctl(4, LOOP_CLR_FD)       = 0
[pid   345] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[   27.571515][  T312] Code: 0e 6f c6 ff e9 de f3 ff ff e8 54 0b 81 ff 48 c7 c7 20 84 8b 86 4c 89 ee 48 89 da e8 52 32 a7 00 e9 50 f2 ff ff e8 38 0b 81 ff <0f> 0b e8 31 0b 81 ff 0f 0b e8 2a 0b 81 ff 0f 0b 0f 1f 84 00 00 00
[   27.590959][  T312] RSP: 0018:ffffc90000ec7988 EFLAGS: 00010293
[   27.596858][  T312] RAX: ffffffff81f29378 RBX: 0000000000000001 RCX: ffff88810f9fb900
[   27.604669][  T312] RDX: 0000000000000000 RSI: 00000000ffff821c RDI: 0000000000000001
[   27.612488][  T312] RBP: ffffc90000ec7a10 R08: ffffffff81f2856c R09: ffffed1024298a79
[   27.620294][  T312] R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000ffff821c
[   27.628103][  T312] R13: ffff8881106d4000 R14: ffff8881098673a8 R15: ffff888109867018
[pid   345] close(4)                    = 0
[pid   345] close(3)                    = 0
[pid   345] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   344] <... futex resumed>)        = 0
[pid   344] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   344] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   345] <... futex resumed>)        = 1
[pid   345] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 3
[pid   345] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   344] <... futex resumed>)        = 0
[pid   345] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   344] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   344] <... futex resumed>)        = 0
[pid   345] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   344] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   345] <... open resumed>)         = 4
[pid   345] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   344] <... futex resumed>)        = 0
[pid   345] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   344] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   344] <... futex resumed>)        = 0
[pid   345] ftruncate(4, 33587199 <unfinished ...>
[pid   344] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   345] <... ftruncate resumed>)    = -1 EINVAL (Invalid argument)
[pid   345] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   344] <... futex resumed>)        = 0
[pid   345] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   344] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   344] <... futex resumed>)        = 0
[pid   345] sendfile(3, 4, NULL, 281474978811909 <unfinished ...>
[   27.635915][  T312] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   27.644679][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.651106][  T312] CR2: 00007f02b644a000 CR3: 0000000120595000 CR4: 00000000003506a0
[   27.658920][  T312] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.666729][  T312] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.674539][  T312] Call Trace:
[   27.677660][  T312]  <TASK>
[   27.680442][  T312]  ? _raw_spin_trylock_bh+0x190/0x190
[pid   344] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid   344] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   344] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02b642a000
[pid   345] <... sendfile resumed>)     = 524288
[pid   344] mprotect(0x7f02b642b000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   345] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   344] <... mprotect resumed>)     = 0
[pid   345] <... futex resumed>)        = 0
[pid   344] clone(child_stack=0x7f02b644a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   345] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   344] <... clone resumed>, parent_tid=[346], tls=0x7f02b644a700, child_tidptr=0x7f02b644a9d0) = 346
[pid   344] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   344] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 346 attached
 <unfinished ...>
[pid   346] set_robust_list(0x7f02b644a9e0, 24) = 0
[pid   346] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   331] exit_group(0 <unfinished ...>
[pid   342] <... futex resumed>)        = ?
[pid   331] <... exit_group resumed>)   = ?
[pid   342] +++ exited with 0 +++
[pid   325] exit_group(0 <unfinished ...>
[pid   340] <... futex resumed>)        = ?
[pid   325] <... exit_group resumed>)   = ?
[pid   340] +++ exited with 0 +++
[pid   346] <... mount resumed>)        = 0
[pid   346] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   344] <... futex resumed>)        = 0
[pid   346] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   344] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... futex resumed>)        = 0
[pid   344] <... futex resumed>)        = 1
[pid   345] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   344] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   345] <... open resumed>)         = 5
[pid   345] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   344] <... futex resumed>)        = 0
[pid   345] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   344] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   344] <... futex resumed>)        = 0
[pid   345] writev(5, [{iov_base="\x46\xbd\x26\x2b\x9e\x1b\xd9\xd3\x26\x37\x9b\x13\x50\x4d\xd6\xfd\xac\xc6\xcd\x5c\x17\x5a\xf2\xf8\x3d\x3a\x25\xb3\x2e\xa9\x45\xdb\x18\x66\x51\x15\x58\xa3\x92\x3f\xd7\xe7\x7e\xa6\x78\x86\xda\x01\x84\x34\x97\x0f\x86\x4b\x4c\x1a\x9c\x55\xcc\x54\xda\xf1\x12\x18\xab\x55\x1b\xe9\xde\xac\x81\xf1\x65\x69\xe1\xaa\x70\x43\x8e\xc3\x22\xed\x93\xf4\xc0\x4b\xa6\xe8\xb6\xe2\x84\x79\x03\xf8\x58\x76\xe9\x86\x0c\x5f"..., iov_len=110}, {iov_base="\xc1\x3f\x4e\x2a\xf2\x9b\xb0\x30\x8e\x36\x30\x3a\x7b\x03\x07\xff\x53\x78\x57\xa1\x6d\xd7\x4e\x47\xe6\x96\xf9\xc7\xae\xb7\x27\x65\xad\xba\xd6\x1d\x04\xf9\x3e\x4a\x5e\xb4\x13\x71\x31\x71\xdf\xd3\x73\x1b\x74\xf0\xc9\x3a\xd2\x70\x2a\x1c\x9d\x49\x28\x98\x77\x69\xf2\x25\xe4\xdc\x5d\xd8\xe8\xae\x3c\x31\xc0\x8d\x5d\x1e\x0b\x49\x27\xb0\x26\x15\x35\x2b\x6b\x55\x7b\x48\x9e\x35\x2d\x07\x87\x94\x37\x47\x8d\xc8"..., iov_len=132}, {iov_base="\x34\xee\x3a\x2c\x11\x7e\x44\x32\x79\xe6\x7b\xfc\xba\x85\xae\xb6\xdb\x8c\x5b\x21\x8f\xcc\x1d\xca\xc5\x59\xe0\x50\x48\xcd\x76\xcc\xd8\x54\xd7\x37\xc4\x62\x2b\xc8\xc9\xb8\x2f\x51\x77\xf2\x27\x84\x1f\xe1\xf5\x3f\x0f\x8f\x7c\x3a\x80\x03\x7c\xcb\x36\xb4\x17\x6e\xbe\x9a\xe1\x11\xe8\x40\xd9\xaa\xeb\x99\xb6\xf2\x46\xea\xc6\x9a\x85\xa3\xb5\x2a\xff\x52\x0e\x11\x30\xdd\x72\x1b\xa2\x94\xe5\x5b\xcf\x3b\xdb\xba"..., iov_len=107}, {iov_base="\x6f\x90\x8a\xac\xf0\xcd\x92\x31\x69\xf3\x7d\xc7\x3a\x11\xe2\x5b\x26\x19\xc4\xd9\x1a\x04\xf2\x63\xb3\xae\xa7\xf4\xfd\x5f\x01\xe6\x24\x96\xe4\x4b\x83\x1e\xdd\x5d\x30\x8a\x6c\x79\xe7\xc4\x59\x94\x23\x86\x48\x8a\xd9\x3a\xe3\x73\x40\x83\x57\xbd\x80\x46\xdf\x53\x40\x7d\x3d\x76\x32\x45\x45\x98\x58\x72\x63\x6d\x29\xbb\xf1\x30\xa5\xff\x4b\x4a\x57\x85\x84\xc8\x24\x5c\x5a\x12\x7c\xb3\x6c\x64\x5b\xb3\x4c\x74"..., iov_len=176}, {iov_base="\xd3\x25\xd5\x12\x13\x6e\xfa\xc1\x9c\x33\x47\x09\xcf\x13\xf9\xa9\xac\x3d\x2d\x36\x20\x64\x0a\x56\xdf\x58\xa5\x62\xea\x3d\x18\x2f\xfa\x18\xdc\x34\x7b\xdd\x8f\xcb\x18\xbb\x6f\x22\x3b\x6f\xe0\xc6\x40\xbf\x1b\xd8\xa3\x55\xb0\x41\xab\xa3\x3b\x90\x0c\x45\x25\xff\x33\xe2\x0e\x34\x9f\xd2\xba\x0b\x3e\x61\x10\xfe\x0e\x4e\x57\x8b\x0b\x20\x65\xd2\x91\x95\x3e\x5c\x09\x2a\x9f\x20\x6e\x04\xe8\xe8\x2b\x1a\xc7\x1b"..., iov_len=574}], 5 <unfinished ...>
[pid   344] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   345] <... writev resumed>)       = 1099
[pid   345] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   344] <... futex resumed>)        = 0
[pid   345] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   344] exit_group(0 <unfinished ...>
[pid   346] <... futex resumed>)        = ?
[pid   345] <... futex resumed>)        = ?
[pid   344] <... exit_group resumed>)   = ?
[   27.685655][  T312]  ext4_discard_preallocations+0x79c/0xef0
[   27.691294][  T312]  ? mb_clear_bits+0x130/0x130
[   27.695885][  T312]  ? rwsem_write_trylock+0x15b/0x290
[   27.701107][  T312]  ? __kasan_slab_free+0x11/0x20
[   27.705881][  T312]  ext4_release_file+0x16e/0x310
[   27.710651][  T312]  ? ext4_file_open+0x750/0x750
[   27.715340][  T312]  __fput+0x3ab/0x870
[   27.719164][  T312]  ____fput+0x15/0x20
[   27.722975][  T312]  task_work_run+0x24d/0x2e0
[   27.727403][  T312]  ? task_work_cancel+0x2b0/0x2b0
[   27.732262][  T312]  ? __kasan_check_write+0x14/0x20
[pid   346] +++ exited with 0 +++
[pid   345] +++ exited with 0 +++
[pid   344] +++ exited with 0 +++
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=344, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   298] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   298] ioctl(3, LOOP_CLR_FD)       = 0
[pid   298] close(3)                    = 0
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661a5d0) = 347
./strace-static-x86_64: Process 347 attached
[pid   347] set_robust_list(0x55555661a5e0, 24) = 0
[pid   347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   347] setpgid(0, 0)               = 0
[pid   347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   347] write(3, "1000", 4)         = 4
[pid   347] close(3)                    = 0
[pid   347] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   347] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f02be7cb000
[pid   347] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   347] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[348], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 348
[pid   347] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   347] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 348 attached
 <unfinished ...>
[pid   348] set_robust_list(0x7f02be7eb9e0, 24) = 0
[pid   348] memfd_create("syzkaller", 0) = 3
[pid   348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f02b63cb000
[pid   348] 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"..., 524288) = 524288
[pid   348] munmap(0x7f02b63cb000, 524288) = 0
[pid   348] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   348] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   348] ioctl(4, LOOP_CLR_FD)       = 0
[pid   348] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[   27.737208][  T312]  ? exit_task_namespaces+0xc2/0xd0
[   27.742244][  T312]  do_exit+0xbb0/0x2910
[   27.746238][  T312]  ? put_task_struct+0x80/0x80
[   27.750843][  T312]  ? wake_up_state+0xb/0x10
[   27.755177][  T312]  ? zap_other_threads+0x292/0x2d0
[   27.760129][  T312]  do_group_exit+0x21a/0x2d0
[   27.764554][  T312]  __x64_sys_exit_group+0x3f/0x40
[   27.769408][  T312]  do_syscall_64+0x3d/0xb0
[   27.773661][  T312]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   27.779389][  T312] RIP: 0033:0x7f02be83e229
[   27.783643][  T312] Code: Unable to access opcode bytes at 0x7f02be83e1ff.
[pid   348] close(4)                    = 0
[pid   348] close(3)                    = 0
[pid   348] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] <... futex resumed>)        = 0
[pid   347] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   347] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   348] <... futex resumed>)        = 1
[pid   348] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 3
[pid   348] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] <... futex resumed>)        = 0
[pid   347] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   347] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   348] <... futex resumed>)        = 1
[pid   348] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4
[pid   348] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] <... futex resumed>)        = 0
[pid   347] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   347] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   348] <... futex resumed>)        = 1
[pid   348] ftruncate(4, 33587199)      = -1 EINVAL (Invalid argument)
[pid   348] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] <... futex resumed>)        = 0
[pid   347] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   347] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   348] <... futex resumed>)        = 1
[   27.790497][  T312] RSP: 002b:00007fff71ba0f68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   27.798746][  T312] RAX: ffffffffffffffda RBX: 00007f02be8c4470 RCX: 00007f02be83e229
[   27.806559][  T312] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
[   27.814367][  T312] RBP: 0000000000000000 R08: ffffffffffffffb8 R09: 0000000000f0b5ff
[   27.822178][  T312] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f02be8c4470
[   27.829994][  T312] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[   27.837806][  T312]  </TASK>
[pid   348] sendfile(3, 4, NULL, 281474978811909 <unfinished ...>
[pid   337] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   335] <... sendfile resumed>)     = ?
[pid   343] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   343] close(4)                    = 0
[pid   337] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   335] +++ exited with 0 +++
[pid   331] +++ exited with 0 +++
[pid   347] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   347] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] close(3 <unfinished ...>
[pid   302] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=331, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   347] <... futex resumed>)        = 0
[pid   343] <... close resumed>)        = 0
[pid   347] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   343] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] <... mmap resumed>)         = 0x7f02b642a000
[pid   343] <... futex resumed>)        = 1
[pid   341] <... futex resumed>)        = 0
[pid   302] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   347] mprotect(0x7f02b642b000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   343] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   341] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   302] <... openat resumed>)       = 3
[pid   347] <... mprotect resumed>)     = 0
[pid   343] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   341] <... futex resumed>)        = 0
[pid   302] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   347] clone(child_stack=0x7f02b644a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   343] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   341] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   302] <... ioctl resumed>)        = 0
[pid   343] <... open resumed>)         = 3
[pid   302] close(3 <unfinished ...>
[pid   347] <... clone resumed>, parent_tid=[349], tls=0x7f02b644a700, child_tidptr=0x7f02b644a9d0) = 349
[pid   343] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   302] <... close resumed>)        = 0
[pid   347] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] <... futex resumed>)        = 1
[pid   341] <... futex resumed>)        = 0
[pid   302] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   347] <... futex resumed>)        = 0
[pid   343] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   341] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   343] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   341] <... futex resumed>)        = 0
[pid   302] <... clone resumed>, child_tidptr=0x55555661a5d0) = 350
[pid   343] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   341] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   343] <... open resumed>)         = 4
[pid   337] <... futex resumed>)        = 0
[pid   330] <... sendfile resumed>)     = ?
[pid   343] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   341] <... futex resumed>)        = 0
[pid   343] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   341] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   341] <... futex resumed>)        = 0
[pid   343] ftruncate(4, 33587199 <unfinished ...>
[pid   341] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   343] <... ftruncate resumed>)    = -1 EINVAL (Invalid argument)
[pid   337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   343] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   341] <... futex resumed>)        = 0
[pid   330] +++ exited with 0 +++
[pid   325] +++ exited with 0 +++
[pid   343] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   341] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   303] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=325, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   343] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[   27.840667][  T312] Modules linked in:
[   27.846991][  T312] ---[ end trace 0000000000000000 ]---
[   27.853424][  T312] RIP: 0010:ext4_mb_load_buddy_gfp+0xef8/0xf10
[   27.859542][  T312] Code: 0e 6f c6 ff e9 de f3 ff ff e8 54 0b 81 ff 48 c7 c7 20 84 8b 86 4c 89 ee 48 89 da e8 52 32 a7 00 e9 50 f2 ff ff e8 38 0b 81 ff <0f> 0b e8 31 0b 81 ff 0f 0b e8 2a 0b 81 ff 0f 0b 0f 1f 84 00 00 00
[   27.879580][  T312] RSP: 0018:ffffc90000ec7988 EFLAGS: 00010293
[pid   341] <... futex resumed>)        = 0
[pid   303] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   343] sendfile(3, 4, NULL, 281474978811909 <unfinished ...>
[pid   341] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   303] <... restart_syscall resumed>) = 0
[pid   337] <... mmap resumed>)         = 0x7f02b642a000
[pid   303] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid   303] ioctl(3, LOOP_CLR_FD)       = 0
[pid   303] close(3)                    = 0
[pid   303] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   337] mprotect(0x7f02b642b000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   303] <... clone resumed>, child_tidptr=0x55555661a5d0) = 352
./strace-static-x86_64: Process 352 attached
./strace-static-x86_64: Process 350 attached
./strace-static-x86_64: Process 349 attached
[pid   348] <... sendfile resumed>)     = 524288
[pid   337] <... mprotect resumed>)     = 0
[pid   350] set_robust_list(0x55555661a5e0, 24 <unfinished ...>
[pid   349] set_robust_list(0x7f02b644a9e0, 24 <unfinished ...>
[pid   348] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] <... set_robust_list resumed>) = 0
[pid   349] <... set_robust_list resumed>) = 0
[pid   348] <... futex resumed>)        = 0
[pid   348] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   350] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   349] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   350] <... prctl resumed>)        = 0
[pid   349] <... mount resumed>)        = 0
[pid   352] set_robust_list(0x55555661a5e0, 24 <unfinished ...>
[pid   350] setpgid(0, 0 <unfinished ...>
[pid   349] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] clone(child_stack=0x7f02b644a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   350] <... setpgid resumed>)      = 0
[pid   349] <... futex resumed>)        = 1
[pid   347] <... futex resumed>)        = 0
[pid   350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   349] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   347] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] <... openat resumed>)       = 3
[pid   348] <... futex resumed>)        = 0
[pid   347] <... futex resumed>)        = 1
./strace-static-x86_64: Process 353 attached
[pid   352] <... set_robust_list resumed>) = 0
[pid   350] write(3, "1000", 4 <unfinished ...>
[pid   348] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   347] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   350] <... write resumed>)        = 4
[pid   348] <... open resumed>)         = 5
[pid   350] close(3 <unfinished ...>
[pid   348] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] <... close resumed>)        = 0
[pid   348] <... futex resumed>)        = 1
[pid   347] <... futex resumed>)        = 0
[pid   350] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   348] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   347] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] <... futex resumed>)        = 0
[pid   348] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   347] <... futex resumed>)        = 0
[pid   350] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   348] writev(5, [{iov_base="\x46\xbd\x26\x2b\x9e\x1b\xd9\xd3\x26\x37\x9b\x13\x50\x4d\xd6\xfd\xac\xc6\xcd\x5c\x17\x5a\xf2\xf8\x3d\x3a\x25\xb3\x2e\xa9\x45\xdb\x18\x66\x51\x15\x58\xa3\x92\x3f\xd7\xe7\x7e\xa6\x78\x86\xda\x01\x84\x34\x97\x0f\x86\x4b\x4c\x1a\x9c\x55\xcc\x54\xda\xf1\x12\x18\xab\x55\x1b\xe9\xde\xac\x81\xf1\x65\x69\xe1\xaa\x70\x43\x8e\xc3\x22\xed\x93\xf4\xc0\x4b\xa6\xe8\xb6\xe2\x84\x79\x03\xf8\x58\x76\xe9\x86\x0c\x5f"..., iov_len=110}, {iov_base="\xc1\x3f\x4e\x2a\xf2\x9b\xb0\x30\x8e\x36\x30\x3a\x7b\x03\x07\xff\x53\x78\x57\xa1\x6d\xd7\x4e\x47\xe6\x96\xf9\xc7\xae\xb7\x27\x65\xad\xba\xd6\x1d\x04\xf9\x3e\x4a\x5e\xb4\x13\x71\x31\x71\xdf\xd3\x73\x1b\x74\xf0\xc9\x3a\xd2\x70\x2a\x1c\x9d\x49\x28\x98\x77\x69\xf2\x25\xe4\xdc\x5d\xd8\xe8\xae\x3c\x31\xc0\x8d\x5d\x1e\x0b\x49\x27\xb0\x26\x15\x35\x2b\x6b\x55\x7b\x48\x9e\x35\x2d\x07\x87\x94\x37\x47\x8d\xc8"..., iov_len=132}, {iov_base="\x34\xee\x3a\x2c\x11\x7e\x44\x32\x79\xe6\x7b\xfc\xba\x85\xae\xb6\xdb\x8c\x5b\x21\x8f\xcc\x1d\xca\xc5\x59\xe0\x50\x48\xcd\x76\xcc\xd8\x54\xd7\x37\xc4\x62\x2b\xc8\xc9\xb8\x2f\x51\x77\xf2\x27\x84\x1f\xe1\xf5\x3f\x0f\x8f\x7c\x3a\x80\x03\x7c\xcb\x36\xb4\x17\x6e\xbe\x9a\xe1\x11\xe8\x40\xd9\xaa\xeb\x99\xb6\xf2\x46\xea\xc6\x9a\x85\xa3\xb5\x2a\xff\x52\x0e\x11\x30\xdd\x72\x1b\xa2\x94\xe5\x5b\xcf\x3b\xdb\xba"..., iov_len=107}, {iov_base="\x6f\x90\x8a\xac\xf0\xcd\x92\x31\x69\xf3\x7d\xc7\x3a\x11\xe2\x5b\x26\x19\xc4\xd9\x1a\x04\xf2\x63\xb3\xae\xa7\xf4\xfd\x5f\x01\xe6\x24\x96\xe4\x4b\x83\x1e\xdd\x5d\x30\x8a\x6c\x79\xe7\xc4\x59\x94\x23\x86\x48\x8a\xd9\x3a\xe3\x73\x40\x83\x57\xbd\x80\x46\xdf\x53\x40\x7d\x3d\x76\x32\x45\x45\x98\x58\x72\x63\x6d\x29\xbb\xf1\x30\xa5\xff\x4b\x4a\x57\x85\x84\xc8\x24\x5c\x5a\x12\x7c\xb3\x6c\x64\x5b\xb3\x4c\x74"..., iov_len=176}, {iov_base="\xd3\x25\xd5\x12\x13\x6e\xfa\xc1\x9c\x33\x47\x09\xcf\x13\xf9\xa9\xac\x3d\x2d\x36\x20\x64\x0a\x56\xdf\x58\xa5\x62\xea\x3d\x18\x2f\xfa\x18\xdc\x34\x7b\xdd\x8f\xcb\x18\xbb\x6f\x22\x3b\x6f\xe0\xc6\x40\xbf\x1b\xd8\xa3\x55\xb0\x41\xab\xa3\x3b\x90\x0c\x45\x25\xff\x33\xe2\x0e\x34\x9f\xd2\xba\x0b\x3e\x61\x10\xfe\x0e\x4e\x57\x8b\x0b\x20\x65\xd2\x91\x95\x3e\x5c\x09\x2a\x9f\x20\x6e\x04\xe8\xe8\x2b\x1a\xc7\x1b"..., iov_len=574}], 5 <unfinished ...>
[pid   347] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   353] set_robust_list(0x7f02b644a9e0, 24 <unfinished ...>
[pid   352] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   350] <... mmap resumed>)         = 0x7f02be7cb000
[pid   348] <... writev resumed>)       = 1099
[pid   337] <... clone resumed>, parent_tid=[353], tls=0x7f02b644a700, child_tidptr=0x7f02b644a9d0) = 353
[pid   350] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   348] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] <... mprotect resumed>)     = 0
[pid   348] <... futex resumed>)        = 1
[pid   347] <... futex resumed>)        = 0
[pid   350] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   348] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   347] exit_group(0 <unfinished ...>
[pid   349] <... futex resumed>)        = ?
[pid   348] <... futex resumed>)        = ?
[   27.886273][  T330] syz-executor160 (330) used greatest stack depth: 21544 bytes left
[   27.894458][  T312] RAX: ffffffff81f29378 RBX: 0000000000000001 RCX: ffff88810f9fb900
[   27.902413][  T312] RDX: 0000000000000000 RSI: 00000000ffff821c RDI: 0000000000000001
[   27.912300][  T312] RBP: ffffc90000ec7a10 R08: ffffffff81f2856c R09: ffffed1024298a79
[   27.920775][  T312] R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000ffff821c
[   27.928992][  T312] R13: ffff8881106d4000 R14: ffff8881098673a8 R15: ffff888109867018
[pid   347] <... exit_group resumed>)   = ?
[pid   353] <... set_robust_list resumed>) = 0
[pid   352] <... prctl resumed>)        = 0
[pid   350] <... clone resumed>, parent_tid=[354], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 354
[pid   349] +++ exited with 0 +++
[pid   348] +++ exited with 0 +++
[pid   347] +++ exited with 0 +++
[pid   337] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 354 attached
 <unfinished ...>
[pid   353] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   352] setpgid(0, 0 <unfinished ...>
[pid   350] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   341] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=347, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   354] set_robust_list(0x7f02be7eb9e0, 24 <unfinished ...>
[pid   353] <... mount resumed>)        = 0
[pid   352] <... setpgid resumed>)      = 0
[pid   350] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   341] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] <... futex resumed>)        = 0
[pid   298] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   343] <... sendfile resumed>)     = 524288
[pid   341] <... futex resumed>)        = 0
[pid   298] <... openat resumed>)       = 3
[pid   343] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   298] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   343] <... futex resumed>)        = 0
[pid   341] <... mmap resumed>)         = 0x7f02b642a000
[pid   298] <... ioctl resumed>)        = 0
[pid   343] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   341] mprotect(0x7f02b642b000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   298] close(3 <unfinished ...>
[pid   341] <... mprotect resumed>)     = 0
[pid   298] <... close resumed>)        = 0
[pid   341] clone(child_stack=0x7f02b644a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   341] <... clone resumed>, parent_tid=[355], tls=0x7f02b644a700, child_tidptr=0x7f02b644a9d0) = 355
[pid   298] <... clone resumed>, child_tidptr=0x55555661a5d0) = 356
[pid   354] <... set_robust_list resumed>) = 0
[pid   353] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   341] <... futex resumed>)        = 0
[pid   337] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   354] memfd_create("syzkaller", 0 <unfinished ...>
[pid   353] <... futex resumed>)        = 0
[pid   352] <... openat resumed>)       = 3
[pid   341] futex(0x7f02be8c47bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   337] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
./strace-static-x86_64: Process 356 attached
[pid   356] set_robust_list(0x55555661a5e0, 24) = 0
[pid   356] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   354] <... memfd_create resumed>) = 3
[pid   353] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   352] write(3, "1000", 4 <unfinished ...>
[pid   337] futex(0x7f02be8c47b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   353] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   352] <... write resumed>)        = 4
./strace-static-x86_64: Process 355 attached
[pid   356] <... prctl resumed>)        = 0
[pid   356] setpgid(0, 0 <unfinished ...>
[pid   355] set_robust_list(0x7f02b644a9e0, 24 <unfinished ...>
[pid   356] <... setpgid resumed>)      = 0
[pid   355] <... set_robust_list resumed>) = 0
[pid   356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   355] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL <unfinished ...>
[pid   356] <... openat resumed>)       = 3
[pid   355] <... mount resumed>)        = 0
[pid   356] write(3, "1000", 4 <unfinished ...>
[pid   355] futex(0x7f02be8c47bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   356] <... write resumed>)        = 4
[pid   355] <... futex resumed>)        = 1
[pid   341] <... futex resumed>)        = 0
[pid   356] close(3 <unfinished ...>
[pid   355] futex(0x7f02be8c47b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   341] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   356] <... close resumed>)        = 0
[pid   343] <... futex resumed>)        = 0
[pid   341] <... futex resumed>)        = 1
[pid   356] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   341] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   356] <... futex resumed>)        = 0
[pid   343] <... open resumed>)         = 5
[pid   356] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   343] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   356] <... mmap resumed>)         = 0x7f02be7cb000
[pid   343] <... futex resumed>)        = 1
[pid   341] <... futex resumed>)        = 0
[pid   356] mprotect(0x7f02be7cc000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   343] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   341] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   356] <... mprotect resumed>)     = 0
[pid   343] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   341] <... futex resumed>)        = 0
[pid   356] clone(child_stack=0x7f02be7eb3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   354] <... mmap resumed>)         = 0x7f02b63cb000
[pid   353] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid   352] close(3 <unfinished ...>
[pid   343] writev(5, [{iov_base="\x46\xbd\x26\x2b\x9e\x1b\xd9\xd3\x26\x37\x9b\x13\x50\x4d\xd6\xfd\xac\xc6\xcd\x5c\x17\x5a\xf2\xf8\x3d\x3a\x25\xb3\x2e\xa9\x45\xdb\x18\x66\x51\x15\x58\xa3\x92\x3f\xd7\xe7\x7e\xa6\x78\x86\xda\x01\x84\x34\x97\x0f\x86\x4b\x4c\x1a\x9c\x55\xcc\x54\xda\xf1\x12\x18\xab\x55\x1b\xe9\xde\xac\x81\xf1\x65\x69\xe1\xaa\x70\x43\x8e\xc3\x22\xed\x93\xf4\xc0\x4b\xa6\xe8\xb6\xe2\x84\x79\x03\xf8\x58\x76\xe9\x86\x0c\x5f"..., iov_len=110}, {iov_base="\xc1\x3f\x4e\x2a\xf2\x9b\xb0\x30\x8e\x36\x30\x3a\x7b\x03\x07\xff\x53\x78\x57\xa1\x6d\xd7\x4e\x47\xe6\x96\xf9\xc7\xae\xb7\x27\x65\xad\xba\xd6\x1d\x04\xf9\x3e\x4a\x5e\xb4\x13\x71\x31\x71\xdf\xd3\x73\x1b\x74\xf0\xc9\x3a\xd2\x70\x2a\x1c\x9d\x49\x28\x98\x77\x69\xf2\x25\xe4\xdc\x5d\xd8\xe8\xae\x3c\x31\xc0\x8d\x5d\x1e\x0b\x49\x27\xb0\x26\x15\x35\x2b\x6b\x55\x7b\x48\x9e\x35\x2d\x07\x87\x94\x37\x47\x8d\xc8"..., iov_len=132}, {iov_base="\x34\xee\x3a\x2c\x11\x7e\x44\x32\x79\xe6\x7b\xfc\xba\x85\xae\xb6\xdb\x8c\x5b\x21\x8f\xcc\x1d\xca\xc5\x59\xe0\x50\x48\xcd\x76\xcc\xd8\x54\xd7\x37\xc4\x62\x2b\xc8\xc9\xb8\x2f\x51\x77\xf2\x27\x84\x1f\xe1\xf5\x3f\x0f\x8f\x7c\x3a\x80\x03\x7c\xcb\x36\xb4\x17\x6e\xbe\x9a\xe1\x11\xe8\x40\xd9\xaa\xeb\x99\xb6\xf2\x46\xea\xc6\x9a\x85\xa3\xb5\x2a\xff\x52\x0e\x11\x30\xdd\x72\x1b\xa2\x94\xe5\x5b\xcf\x3b\xdb\xba"..., iov_len=107}, {iov_base="\x6f\x90\x8a\xac\xf0\xcd\x92\x31\x69\xf3\x7d\xc7\x3a\x11\xe2\x5b\x26\x19\xc4\xd9\x1a\x04\xf2\x63\xb3\xae\xa7\xf4\xfd\x5f\x01\xe6\x24\x96\xe4\x4b\x83\x1e\xdd\x5d\x30\x8a\x6c\x79\xe7\xc4\x59\x94\x23\x86\x48\x8a\xd9\x3a\xe3\x73\x40\x83\x57\xbd\x80\x46\xdf\x53\x40\x7d\x3d\x76\x32\x45\x45\x98\x58\x72\x63\x6d\x29\xbb\xf1\x30\xa5\xff\x4b\x4a\x57\x85\x84\xc8\x24\x5c\x5a\x12\x7c\xb3\x6c\x64\x5b\xb3\x4c\x74"..., iov_len=176}, {iov_base="\xd3\x25\xd5\x12\x13\x6e\xfa\xc1\x9c\x33\x47\x09\xcf\x13\xf9\xa9\xac\x3d\x2d\x36\x20\x64\x0a\x56\xdf\x58\xa5\x62\xea\x3d\x18\x2f\xfa\x18\xdc\x34\x7b\xdd\x8f\xcb\x18\xbb\x6f\x22\x3b\x6f\xe0\xc6\x40\xbf\x1b\xd8\xa3\x55\xb0\x41\xab\xa3\x3b\x90\x0c\x45\x25\xff\x33\xe2\x0e\x34\x9f\xd2\xba\x0b\x3e\x61\x10\xfe\x0e\x4e\x57\x8b\x0b\x20\x65\xd2\x91\x95\x3e\x5c\x09\x2a\x9f\x20\x6e\x04\xe8\xe8\x2b\x1a\xc7\x1b"..., iov_len=574}], 5 <unfinished ...>
[pid   341] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   337] <... futex resumed>)        = 0
[pid   343] <... writev resumed>)       = 1099
[pid   356] <... clone resumed>, parent_tid=[357], tls=0x7f02be7eb700, child_tidptr=0x7f02be7eb9d0) = 357
[pid   343] futex(0x7f02be8c47ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   356] futex(0x7f02be8c47a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] <... futex resumed>)        = 1
[pid   341] <... futex resumed>)        = 0
[pid   356] <... futex resumed>)        = 0
[pid   343] futex(0x7f02be8c47a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   341] exit_group(0 <unfinished ...>
[pid   356] futex(0x7f02be8c47ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   355] <... futex resumed>)        = ?
[pid   343] <... futex resumed>)        = ?
[   27.937078][  T312] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   27.947254][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.954009][  T312] CR2: 00007f02be840b20 CR3: 00000001204a3000 CR4: 00000000003506a0
[   27.962759][  T312] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.971094][  T312] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.979208][  T312] Kernel panic - not syncing: Fatal exception
[   27.985457][  T312] Kernel Offset: disabled
[   27.989591][  T312] Rebooting in 86400 seconds..