./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2649729423 <...> Warning: Permanently added '10.128.1.57' (ECDSA) to the list of known hosts. execve("./syz-executor2649729423", ["./syz-executor2649729423"], 0x7ffd05b90000 /* 10 vars */) = 0 brk(NULL) = 0x555556bc0000 brk(0x555556bc0c40) = 0x555556bc0c40 arch_prctl(ARCH_SET_FS, 0x555556bc0300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x555556bc05d0) = 295 set_robust_list(0x555556bc05e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7ff2a325c700, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7ff2a325cdd0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7ff2a325c7a0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff2a325cdd0}, 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-executor2649729423", 4096) = 28 brk(0x555556be1c40) = 0x555556be1c40 brk(0x555556be2000) = 0x555556be2000 mprotect(0x7ff2a331e000, 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=0x555556bc05d0) = 296 ./strace-static-x86_64: Process 296 attached [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] set_robust_list(0x555556bc05e0, 24) = 0 [pid 295] <... clone resumed>, child_tidptr=0x555556bc05d0) = 297 ./strace-static-x86_64: Process 297 attached [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 295] <... clone resumed>, child_tidptr=0x555556bc05d0) = 298 [pid 297] set_robust_list(0x555556bc05e0, 24./strace-static-x86_64: Process 298 attached [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] <... set_robust_list resumed>) = 0 [pid 298] set_robust_list(0x555556bc05e0, 24) = 0 [pid 298] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 295] <... clone resumed>, child_tidptr=0x555556bc05d0) = 299 [pid 297] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 298] <... openat resumed>) = 3 [pid 298] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 298] close(3) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556bc05d0) = 301 ./strace-static-x86_64: Process 299 attached [pid 299] set_robust_list(0x555556bc05e0, 24) = 0 [pid 299] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 299] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 299] close(3) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556bc05d0) = 302 ./strace-static-x86_64: Process 302 attached [pid 302] set_robust_list(0x555556bc05e0, 24) = 0 [pid 302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 302] setpgid(0, 0) = 0 [pid 302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 302] write(3, "1000", 4) = 4 [pid 302] close(3) = 0 [pid 302] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff2a322b000 [pid 302] mprotect(0x7ff2a322c000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 302] clone(child_stack=0x7ff2a324b3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[304], tls=0x7ff2a324b700, child_tidptr=0x7ff2a324b9d0) = 304 [pid 302] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 302] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 295] <... clone resumed>, child_tidptr=0x555556bc05d0) = 305 [pid 297] <... openat resumed>) = 3 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 297] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 295] <... clone resumed>, child_tidptr=0x555556bc05d0) = 306 [pid 297] close(3 [pid 296] <... openat resumed>) = 3 [pid 297] <... close resumed>) = 0 [pid 296] ioctl(3, LOOP_CLR_FD [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 296] close(3./strace-static-x86_64: Process 305 attached [pid 297] <... clone resumed>, child_tidptr=0x555556bc05d0) = 307 [pid 296] <... close resumed>) = 0 ./strace-static-x86_64: Process 306 attached [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556bc05d0) = 308 [pid 305] set_robust_list(0x555556bc05e0, 24) = 0 [pid 306] set_robust_list(0x555556bc05e0, 24 [pid 305] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 306] <... set_robust_list resumed>) = 0 [pid 305] <... openat resumed>) = 3 [pid 305] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 305] close(3) = 0 [pid 305] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 306] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 301 attached ) = 3 [pid 305] <... clone resumed>, child_tidptr=0x555556bc05d0) = 309 [pid 306] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 306] close(3) = 0 [pid 306] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 301] set_robust_list(0x555556bc05e0, 24 [pid 306] <... clone resumed>, child_tidptr=0x555556bc05d0) = 310 ./strace-static-x86_64: Process 308 attached [pid 301] <... set_robust_list resumed>) = 0 [ 23.620967][ T30] audit: type=1400 audit(1684299478.146:66): avc: denied { execmem } for pid=295 comm="syz-executor264" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 23.643546][ T30] audit: type=1400 audit(1684299478.166:68): avc: denied { open } for pid=297 comm="syz-executor264" path="/dev/loop1" dev="devtmpfs" ino=113 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 ./strace-static-x86_64: Process 310 attached [pid 308] set_robust_list(0x555556bc05e0, 24 [pid 301] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 307 attached [pid 307] set_robust_list(0x555556bc05e0, 24) = 0 [pid 307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 307] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 309 attached [pid 307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 309] set_robust_list(0x555556bc05e0, 24 [pid 307] <... openat resumed>) = 3 [pid 309] <... set_robust_list resumed>) = 0 [pid 309] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 307] write(3, "1000", 4) = 4 [pid 307] close(3) = 0 [pid 309] <... prctl resumed>) = 0 [pid 309] setpgid(0, 0 [pid 307] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 307] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 309] <... setpgid resumed>) = 0 [pid 309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 307] <... mmap resumed>) = 0x7ff2a322b000 [pid 307] mprotect(0x7ff2a322c000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 309] <... openat resumed>) = 3 [pid 309] write(3, "1000", 4) = 4 [pid 307] clone(child_stack=0x7ff2a324b3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 309] close(3) = 0 [pid 309] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 309] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff2a322b000 [pid 309] mprotect(0x7ff2a322c000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 304 attached [pid 304] set_robust_list(0x7ff2a324b9e0, 24 [pid 309] clone(child_stack=0x7ff2a324b3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 304] <... set_robust_list resumed>) = 0 [pid 304] memfd_create("syzkaller", 0 [pid 307] <... clone resumed>, parent_tid=[311], tls=0x7ff2a324b700, child_tidptr=0x7ff2a324b9d0) = 311 [pid 307] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 307] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 304] <... memfd_create resumed>) = 3 [pid 304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff29ae2b000 [pid 309] <... clone resumed>, parent_tid=[312], tls=0x7ff2a324b700, child_tidptr=0x7ff2a324b9d0) = 312 [pid 309] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 309] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 312 attached [pid 304] 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 [pid 312] set_robust_list(0x7ff2a324b9e0, 24) = 0 [pid 312] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 311 attached [pid 311] set_robust_list(0x7ff2a324b9e0, 24 [pid 312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 311] <... set_robust_list resumed>) = 0 [pid 312] <... mmap resumed>) = 0x7ff29ae2b000 [pid 311] memfd_create("syzkaller", 0) = 3 [pid 311] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff29ae2b000 [pid 310] set_robust_list(0x555556bc05e0, 24 [pid 308] <... set_robust_list resumed>) = 0 [pid 301] <... prctl resumed>) = 0 [pid 308] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 301] setpgid(0, 0) = 0 [pid 310] <... set_robust_list resumed>) = 0 [pid 308] <... prctl resumed>) = 0 [pid 301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 310] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 301] <... openat resumed>) = 3 [pid 310] <... prctl resumed>) = 0 [ 23.681264][ T30] audit: type=1400 audit(1684299478.166:69): avc: denied { ioctl } for pid=298 comm="syz-executor264" path="/dev/loop2" dev="devtmpfs" ino=114 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 308] setpgid(0, 0 [pid 310] setpgid(0, 0 [pid 308] <... setpgid resumed>) = 0 [pid 301] write(3, "1000", 4 [pid 304] <... write resumed>) = 524288 [pid 312] 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 [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 [pid 304] munmap(0x7ff29ae2b000, 524288) = 0 [pid 304] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 304] ioctl(4, LOOP_SET_FD, 3 [pid 312] <... write resumed>) = 524288 [pid 311] <... write resumed>) = 524288 [pid 310] <... setpgid resumed>) = 0 [pid 308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 304] <... ioctl resumed>) = 0 [pid 301] <... write resumed>) = 4 [pid 312] munmap(0x7ff29ae2b000, 524288 [pid 311] munmap(0x7ff29ae2b000, 524288 [pid 310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 308] <... openat resumed>) = 3 [pid 304] close(3 [pid 301] close(3 [pid 312] <... munmap resumed>) = 0 [pid 311] <... munmap resumed>) = 0 [pid 310] <... openat resumed>) = 3 [pid 308] write(3, "1000", 4 [pid 304] <... close resumed>) = 0 [pid 301] <... close resumed>) = 0 [pid 312] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 312] ioctl(4, LOOP_SET_FD, 3 [pid 308] <... write resumed>) = 4 [pid 304] mkdir("./file0", 0777 [pid 301] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 308] close(3 [pid 301] <... futex resumed>) = 0 [pid 308] <... close resumed>) = 0 [pid 301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 308] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... mmap resumed>) = 0x7ff2a322b000 [pid 308] <... futex resumed>) = 0 [pid 304] <... mkdir resumed>) = 0 [pid 301] mprotect(0x7ff2a322c000, 131072, PROT_READ|PROT_WRITE [pid 308] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 301] <... mprotect resumed>) = 0 [pid 312] <... ioctl resumed>) = 0 [pid 311] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 310] write(3, "1000", 4 [pid 308] <... mmap resumed>) = 0x7ff2a322b000 [pid 312] close(3 [pid 311] <... openat resumed>) = 4 [pid 310] <... write resumed>) = 4 [pid 308] mprotect(0x7ff2a322c000, 131072, PROT_READ|PROT_WRITE [pid 301] clone(child_stack=0x7ff2a324b3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 312] <... close resumed>) = 0 [pid 311] ioctl(4, LOOP_SET_FD, 3 [pid 310] close(3 [pid 308] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 314 attached [pid 308] clone(child_stack=0x7ff2a324b3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [ 23.708958][ T30] audit: type=1400 audit(1684299478.166:67): avc: denied { read write } for pid=296 comm="syz-executor264" name="loop0" dev="devtmpfs" ino=112 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 23.717252][ T304] loop3: detected capacity change from 0 to 1024 [ 23.746872][ T312] loop4: detected capacity change from 0 to 1024 [ 23.754023][ T311] loop1: detected capacity change from 0 to 1024 [pid 304] mount("/dev/loop3", "./file0", "ext4", MS_NOSUID|MS_SILENT|MS_STRICTATIME, "grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_it"..../strace-static-x86_64: Process 315 attached [pid 314] set_robust_list(0x7ff2a324b9e0, 24 [pid 312] mkdir("./file0", 0777 [pid 311] <... ioctl resumed>) = 0 [pid 310] <... close resumed>) = 0 [pid 315] set_robust_list(0x7ff2a324b9e0, 24 [pid 312] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 311] close(3 [pid 310] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 315] <... set_robust_list resumed>) = 0 [pid 312] mount("/dev/loop4", "./file0", "ext4", MS_NOSUID|MS_SILENT|MS_STRICTATIME, "grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_it"... [pid 311] <... close resumed>) = 0 [pid 310] <... futex resumed>) = 0 [pid 315] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 311] mkdir("./file0", 0777 [pid 310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 311] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 310] <... mmap resumed>) = 0x7ff2a322b000 [pid 311] mount("/dev/loop1", "./file0", "ext4", MS_NOSUID|MS_SILENT|MS_STRICTATIME, "grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_it"... [pid 310] mprotect(0x7ff2a322c000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 310] clone(child_stack=0x7ff2a324b3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[318], tls=0x7ff2a324b700, child_tidptr=0x7ff2a324b9d0) = 318 [pid 310] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 310] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 318 attached [pid 318] set_robust_list(0x7ff2a324b9e0, 24) = 0 [pid 318] memfd_create("syzkaller", 0) = 3 [pid 318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff29ae2b000 [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 [pid 308] <... clone resumed>, parent_tid=[315], tls=0x7ff2a324b700, child_tidptr=0x7ff2a324b9d0) = 315 [pid 301] <... clone resumed>, parent_tid=[314], tls=0x7ff2a324b700, child_tidptr=0x7ff2a324b9d0) = 314 [pid 308] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 315] <... futex resumed>) = 0 [pid 308] <... futex resumed>) = 1 [pid 301] <... futex resumed>) = 0 [pid 315] memfd_create("syzkaller", 0 [pid 308] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 301] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 315] <... memfd_create resumed>) = 3 [pid 315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff29ae2b000 [pid 315] 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 315] munmap(0x7ff29ae2b000, 524288) = 0 [pid 315] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 315] ioctl(4, LOOP_SET_FD, 3 [pid 312] <... mount resumed>) = 0 [pid 314] <... set_robust_list resumed>) = 0 [pid 314] memfd_create("syzkaller", 0) = 3 [pid 314] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff29ae2b000 [pid 318] <... write resumed>) = 524288 [pid 314] 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 [ 23.756789][ T30] audit: type=1400 audit(1684299478.276:70): avc: denied { mounton } for pid=302 comm="syz-executor264" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 23.771196][ T312] EXT4-fs (loop4): mounted filesystem without journal. Opts: grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_itable=0x0000000000000003,usrquota,max_dir_size_kb=0x00000000000040d2,,errors=continue. Quota mode: writeback. [ 23.793498][ T315] loop0: detected capacity change from 0 to 1024 [pid 318] munmap(0x7ff29ae2b000, 524288) = 0 [pid 315] <... ioctl resumed>) = 0 [pid 314] <... write resumed>) = 524288 [pid 312] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 315] close(3 [pid 314] munmap(0x7ff29ae2b000, 524288 [pid 312] <... openat resumed>) = 3 [pid 318] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 315] <... close resumed>) = 0 [pid 314] <... munmap resumed>) = 0 [pid 312] chdir("./file0" [pid 318] <... openat resumed>) = 4 [pid 315] mkdir("./file0", 0777 [pid 314] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 312] <... chdir resumed>) = 0 [pid 318] ioctl(4, LOOP_SET_FD, 3 [pid 315] <... mkdir resumed>) = -1 EEXIST (File exists) [ 23.808919][ T30] audit: type=1400 audit(1684299478.336:71): avc: denied { mount } for pid=309 comm="syz-executor264" name="/" dev="loop4" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 23.830097][ T311] EXT4-fs (loop1): mounted filesystem without journal. Opts: grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_itable=0x0000000000000003,usrquota,max_dir_size_kb=0x00000000000040d2,,errors=continue. Quota mode: writeback. [ 23.839466][ T318] loop5: detected capacity change from 0 to 1024 [pid 314] <... openat resumed>) = 4 [pid 312] ioctl(4, LOOP_CLR_FD [pid 318] <... ioctl resumed>) = 0 [pid 315] mount("/dev/loop0", "./file0", "ext4", MS_NOSUID|MS_SILENT|MS_STRICTATIME, "grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_it"... [pid 314] ioctl(4, LOOP_SET_FD, 3 [pid 312] <... ioctl resumed>) = 0 [pid 311] <... mount resumed>) = 0 [pid 318] close(3 [pid 304] <... mount resumed>) = 0 [pid 304] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 304] chdir("./file0") = 0 [pid 304] ioctl(4, LOOP_CLR_FD) = 0 [pid 304] close(4) = 0 [pid 304] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... futex resumed>) = 0 [pid 302] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 302] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = 1 [pid 304] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 304] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... futex resumed>) = 0 [pid 302] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 302] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = 1 [pid 304] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 304] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... futex resumed>) = 0 [pid 302] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 302] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = 1 [pid 304] ftruncate(5, 33587199) = 0 [pid 304] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... futex resumed>) = 0 [pid 302] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 302] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = 1 [pid 304] sendfile(4, 5, NULL, 281474978811909 [pid 318] <... close resumed>) = 0 [pid 312] close(4 [pid 311] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 318] mkdir("./file0", 0777 [pid 312] <... close resumed>) = 0 [pid 311] <... openat resumed>) = 3 [pid 318] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 312] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 311] chdir("./file0" [pid 318] mount("/dev/loop5", "./file0", "ext4", MS_NOSUID|MS_SILENT|MS_STRICTATIME, "grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_it"... [pid 312] <... futex resumed>) = 1 [pid 309] <... futex resumed>) = 0 [pid 311] <... chdir resumed>) = 0 [pid 312] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 [pid 311] ioctl(4, LOOP_CLR_FD [pid 309] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 311] <... ioctl resumed>) = 0 [pid 309] <... futex resumed>) = 0 [pid 311] close(4 [pid 309] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 311] <... close resumed>) = 0 [pid 314] <... ioctl resumed>) = 0 [pid 311] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 314] close(3 [pid 311] <... futex resumed>) = 1 [pid 307] <... futex resumed>) = 0 [pid 314] <... close resumed>) = 0 [pid 311] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 307] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 314] mkdir("./file0", 0777 [pid 311] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 307] <... futex resumed>) = 0 [pid 314] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 311] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 [pid 307] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 312] <... open resumed>) = 4 [pid 311] <... open resumed>) = 4 [pid 314] mount("/dev/loop2", "./file0", "ext4", MS_NOSUID|MS_SILENT|MS_STRICTATIME, "grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_it"... [pid 312] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 311] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 312] <... futex resumed>) = 1 [pid 309] <... futex resumed>) = 0 [pid 312] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 311] <... futex resumed>) = 1 [pid 309] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] <... futex resumed>) = 0 [pid 312] <... open resumed>) = 5 [pid 311] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 309] <... futex resumed>) = 0 [pid 307] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 312] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 311] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 309] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 307] <... futex resumed>) = 0 [ 23.864158][ T304] EXT4-fs (loop3): mounted filesystem without journal. Opts: grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_itable=0x0000000000000003,usrquota,max_dir_size_kb=0x00000000000040d2,,errors=continue. Quota mode: writeback. [ 23.868722][ T30] audit: type=1400 audit(1684299478.396:72): avc: denied { mounton } for pid=308 comm="syz-executor264" path="/root/file0" dev="loop1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 23.916104][ T314] loop2: detected capacity change from 0 to 1024 [pid 312] <... futex resumed>) = 0 [pid 312] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 311] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 307] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 311] <... open resumed>) = 5 [pid 309] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 312] <... futex resumed>) = 0 [pid 311] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] <... futex resumed>) = 1 [pid 312] ftruncate(5, 33587199 [pid 311] <... futex resumed>) = 1 [pid 309] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 307] <... futex resumed>) = 0 [pid 312] <... ftruncate resumed>) = 0 [pid 311] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 307] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 312] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 311] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 307] <... futex resumed>) = 0 [pid 312] <... futex resumed>) = 1 [pid 311] ftruncate(5, 33587199 [pid 309] <... futex resumed>) = 0 [pid 307] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 312] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 311] <... ftruncate resumed>) = 0 [pid 309] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 312] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 311] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] <... futex resumed>) = 0 [pid 312] sendfile(4, 5, NULL, 281474978811909 [pid 311] <... futex resumed>) = 1 [pid 309] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 307] <... futex resumed>) = 0 [pid 311] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 307] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 311] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 307] <... futex resumed>) = 0 [pid 311] sendfile(4, 5, NULL, 281474978811909 [ 23.939543][ T30] audit: type=1400 audit(1684299478.416:73): avc: denied { write } for pid=302 comm="syz-executor264" name="/" dev="loop3" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 23.940210][ T318] EXT4-fs (loop5): mounted filesystem without journal. Opts: grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_itable=0x0000000000000003,usrquota,max_dir_size_kb=0x00000000000040d2,,errors=continue. Quota mode: writeback. [ 23.961247][ T30] audit: type=1400 audit(1684299478.416:74): avc: denied { add_name } for pid=302 comm="syz-executor264" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 23.961283][ T30] audit: type=1400 audit(1684299478.416:75): avc: denied { create } for pid=302 comm="syz-executor264" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [pid 307] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 318] <... mount resumed>) = 0 [pid 309] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 307] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 302] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 309] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] <... futex resumed>) = 0 [pid 307] <... futex resumed>) = 0 [pid 302] <... futex resumed>) = 0 [pid 309] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 307] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 309] <... mmap resumed>) = 0x7ff29ae8a000 [pid 307] <... mmap resumed>) = 0x7ff29ae8a000 [pid 302] <... mmap resumed>) = 0x7ff29ae8a000 [pid 309] mprotect(0x7ff29ae8b000, 131072, PROT_READ|PROT_WRITE [pid 307] mprotect(0x7ff29ae8b000, 131072, PROT_READ|PROT_WRITE [pid 302] mprotect(0x7ff29ae8b000, 131072, PROT_READ|PROT_WRITE [pid 309] <... mprotect resumed>) = 0 [pid 307] <... mprotect resumed>) = 0 [pid 302] <... mprotect resumed>) = 0 [pid 309] clone(child_stack=0x7ff29aeaa3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 307] clone(child_stack=0x7ff29aeaa3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 302] clone(child_stack=0x7ff29aeaa3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 309] <... clone resumed>, parent_tid=[325], tls=0x7ff29aeaa700, child_tidptr=0x7ff29aeaa9d0) = 325 [pid 307] <... clone resumed>, parent_tid=[324], tls=0x7ff29aeaa700, child_tidptr=0x7ff29aeaa9d0) = 324 [pid 302] <... clone resumed>, parent_tid=[326], tls=0x7ff29aeaa700, child_tidptr=0x7ff29aeaa9d0) = 326 [pid 309] futex(0x7ff2a33247b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] futex(0x7ff2a33247b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] futex(0x7ff2a33247b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] <... futex resumed>) = 0 [pid 307] <... futex resumed>) = 0 [pid 302] <... futex resumed>) = 0 [pid 309] futex(0x7ff2a33247bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 307] futex(0x7ff2a33247bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] futex(0x7ff2a33247bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [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(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 310] <... futex resumed>) = 0 [pid 310] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 310] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 318] <... futex resumed>) = 1 [pid 318] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000./strace-static-x86_64: Process 326 attached ./strace-static-x86_64: Process 325 attached ./strace-static-x86_64: Process 324 attached [pid 326] set_robust_list(0x7ff29aeaa9e0, 24 [pid 325] set_robust_list(0x7ff29aeaa9e0, 24 [pid 324] set_robust_list(0x7ff29aeaa9e0, 24 [pid 326] <... set_robust_list resumed>) = 0 [pid 325] <... set_robust_list resumed>) = 0 [pid 324] <... set_robust_list resumed>) = 0 [pid 326] mount("/dev/loop3", "./bus", NULL, MS_BIND, NULL [pid 325] mount("/dev/loop4", "./bus", NULL, MS_BIND, NULL [pid 324] mount("/dev/loop1", "./bus", NULL, MS_BIND, NULL [pid 326] <... mount resumed>) = 0 [pid 318] <... open resumed>) = 4 [pid 325] <... mount resumed>) = 0 [pid 318] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 310] <... futex resumed>) = 0 [pid 310] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 324] <... mount resumed>) = 0 [pid 310] <... futex resumed>) = 0 [pid 326] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 325] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 324] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 310] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 326] <... futex resumed>) = 1 [pid 325] <... futex resumed>) = 1 [pid 324] <... futex resumed>) = 1 [pid 318] <... futex resumed>) = 1 [pid 311] <... sendfile resumed>) = 376832 [pid 309] <... futex resumed>) = 0 [pid 307] <... futex resumed>) = 0 [pid 304] <... sendfile resumed>) = 376832 [pid 302] <... futex resumed>) = 0 [pid 309] futex(0x7ff2a33247b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 326] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 325] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 324] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 307] futex(0x7ff2a33247b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] futex(0x7ff2a33247b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 326] <... open resumed>) = 6 [pid 325] <... open resumed>) = 6 [pid 309] <... futex resumed>) = 0 [pid 307] <... futex resumed>) = 0 [pid 304] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 324] <... open resumed>) = 6 [pid 302] <... futex resumed>) = 0 [pid 326] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 325] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 324] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] futex(0x7ff2a33247bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 307] futex(0x7ff2a33247bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = 0 [pid 302] futex(0x7ff2a33247bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 326] <... futex resumed>) = 0 [pid 325] <... futex resumed>) = 0 [pid 324] <... futex resumed>) = 0 [pid 309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 307] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 304] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 326] futex(0x7ff2a33247b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 309] futex(0x7ff2a33247b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] futex(0x7ff2a33247b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] <... futex resumed>) = 0 [pid 307] <... futex resumed>) = 0 [pid 304] <... futex resumed>) = 0 [pid 302] <... futex resumed>) = 1 [pid 325] 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 [pid 324] 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 [pid 318] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 311] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] futex(0x7ff2a33247bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 307] futex(0x7ff2a33247bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] 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 [pid 302] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 318] <... open resumed>) = 5 [pid 311] <... futex resumed>) = 0 [ 24.008497][ T315] EXT4-fs (loop0): mounted filesystem without journal. Opts: grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_itable=0x0000000000000003,usrquota,max_dir_size_kb=0x00000000000040d2,,errors=continue. Quota mode: writeback. [pid 318] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 311] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 325] <... writev resumed>) = 1099 [pid 324] <... writev resumed>) = 1099 [pid 304] <... writev resumed>) = 1099 [pid 318] <... futex resumed>) = 1 [pid 310] <... futex resumed>) = 0 [pid 304] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 318] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 310] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 304] <... futex resumed>) = 1 [pid 302] <... futex resumed>) = 0 [pid 318] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 310] <... futex resumed>) = 0 [pid 304] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 302] exit_group(0 [pid 318] ftruncate(5, 33587199 [pid 310] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = ? [pid 302] <... exit_group resumed>) = ? [pid 326] <... futex resumed>) = ? [pid 325] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 324] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 318] <... ftruncate resumed>) = 0 [pid 314] <... mount resumed>) = 0 [pid 309] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 307] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 304] +++ exited with 0 +++ [pid 318] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 314] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 307] exit_group(0 [pid 318] <... futex resumed>) = 1 [pid 314] <... openat resumed>) = 3 [pid 311] <... futex resumed>) = ? [pid 310] <... futex resumed>) = 0 [pid 307] <... exit_group resumed>) = ? [pid 326] +++ exited with 0 +++ [pid 325] <... futex resumed>) = 0 [pid 324] <... futex resumed>) = ? [pid 318] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 314] chdir("./file0" [pid 311] +++ exited with 0 +++ [pid 310] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] +++ exited with 0 +++ [pid 318] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 314] <... chdir resumed>) = 0 [pid 310] <... futex resumed>) = 0 [pid 318] sendfile(4, 5, NULL, 281474978811909 [pid 314] ioctl(4, LOOP_CLR_FD [pid 310] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 325] futex(0x7ff2a33247b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 324] +++ exited with 0 +++ [pid 307] +++ exited with 0 +++ [pid 299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=302, si_uid=0, si_status=0, si_utime=0, si_stime=6} --- [pid 314] <... ioctl resumed>) = 0 [pid 299] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=307, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 314] close(4 [pid 299] <... openat resumed>) = 3 [pid 314] <... close resumed>) = 0 [pid 299] ioctl(3, LOOP_CLR_FD) = 0 [pid 314] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] close(3 [pid 314] <... futex resumed>) = 1 [pid 301] <... futex resumed>) = 0 [pid 299] <... close resumed>) = 0 [pid 314] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 301] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 314] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 301] <... futex resumed>) = 0 [pid 314] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 [pid 301] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] <... clone resumed>, child_tidptr=0x555556bc05d0) = 329 [pid 297] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 297] ioctl(3, LOOP_CLR_FD) = 0 [pid 297] close(3) = 0 [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 314] <... open resumed>) = 4 [pid 314] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 297] <... clone resumed>, child_tidptr=0x555556bc05d0) = 330 [pid 314] <... futex resumed>) = 1 [pid 301] <... futex resumed>) = 0 [ 24.097957][ T312] EXT4-fs error (device loop4): __ext4_get_inode_loc:4347: comm syz-executor264: Invalid inode table block 5 in block_group 0 [ 24.104261][ T314] EXT4-fs (loop2): mounted filesystem without journal. Opts: grpquota,debug_want_extra_isize=0x0000000000000082,nodiscard,nojournal_checksum,data=ordered,init_itable=0x0000000000000003,usrquota,max_dir_size_kb=0x00000000000040d2,,errors=continue. Quota mode: writeback. [ 24.113614][ T304] syz-executor264 (304) used greatest stack depth: 22096 bytes left [pid 301] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 329 attached [pid 314] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 314] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 301] <... futex resumed>) = 0 [pid 314] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 301] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 314] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 301] <... futex resumed>) = 0 [pid 314] ftruncate(5, 33587199 [pid 301] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 330 attached [pid 329] set_robust_list(0x555556bc05e0, 24 [pid 314] <... ftruncate resumed>) = 0 [pid 330] set_robust_list(0x555556bc05e0, 24 [pid 329] <... set_robust_list resumed>) = 0 [pid 330] <... set_robust_list resumed>) = 0 [pid 329] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 330] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 329] <... prctl resumed>) = 0 [pid 330] <... prctl resumed>) = 0 [pid 329] setpgid(0, 0 [pid 330] setpgid(0, 0 [pid 329] <... setpgid resumed>) = 0 [pid 330] <... setpgid resumed>) = 0 [pid 329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 329] <... openat resumed>) = 3 [pid 330] <... openat resumed>) = 3 [pid 329] write(3, "1000", 4 [pid 330] write(3, "1000", 4 [pid 329] <... write resumed>) = 4 [pid 330] <... write resumed>) = 4 [pid 329] close(3 [pid 330] close(3 [pid 329] <... close resumed>) = 0 [pid 314] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 330] <... close resumed>) = 0 [pid 329] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 314] <... futex resumed>) = 1 [pid 301] <... futex resumed>) = 0 [pid 330] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 329] <... futex resumed>) = 0 [pid 314] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 301] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 330] <... futex resumed>) = 0 [pid 329] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 314] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 312] <... sendfile resumed>) = 262144 [pid 301] <... futex resumed>) = 0 [pid 330] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 329] <... mmap resumed>) = 0x7ff2a322b000 [pid 314] sendfile(4, 5, NULL, 281474978811909 [pid 312] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 330] <... mmap resumed>) = 0x7ff2a322b000 [pid 329] mprotect(0x7ff2a322c000, 131072, PROT_READ|PROT_WRITE [pid 330] mprotect(0x7ff2a322c000, 131072, PROT_READ|PROT_WRITE [pid 329] <... mprotect resumed>) = 0 [pid 312] <... futex resumed>) = 0 [pid 309] exit_group(0 [pid 330] <... mprotect resumed>) = 0 [pid 329] clone(child_stack=0x7ff2a324b3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 325] <... futex resumed>) = ? [pid 309] <... exit_group resumed>) = ? [pid 330] clone(child_stack=0x7ff2a324b3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 325] +++ exited with 0 +++ [pid 329] <... clone resumed>, parent_tid=[331], tls=0x7ff2a324b700, child_tidptr=0x7ff2a324b9d0) = 331 [pid 330] <... clone resumed>, parent_tid=[332], tls=0x7ff2a324b700, child_tidptr=0x7ff2a324b9d0) = 332 [pid 329] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 330] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 329] <... futex resumed>) = 0 [pid 330] <... futex resumed>) = 0 [pid 329] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 330] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 314] <... sendfile resumed>) = 376832 ./strace-static-x86_64: Process 331 attached [pid 315] <... mount resumed>) = 0 [pid 314] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 332 attached [pid 332] set_robust_list(0x7ff2a324b9e0, 24) = 0 [pid 332] memfd_create("syzkaller", 0) = 3 [pid 332] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff29ae2b000 [pid 331] set_robust_list(0x7ff2a324b9e0, 24 [pid 314] <... futex resumed>) = 1 [pid 315] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 310] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 301] <... futex resumed>) = 0 [pid 332] 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 332] munmap(0x7ff29ae2b000, 524288) = 0 [pid 332] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 332] ioctl(4, LOOP_SET_FD, 3 [pid 331] <... set_robust_list resumed>) = 0 [pid 315] <... openat resumed>) = 3 [pid 314] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL [pid 310] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 331] memfd_create("syzkaller", 0 [pid 315] chdir("./file0" [pid 314] <... mount resumed>) = 0 [pid 310] <... futex resumed>) = 0 [pid 301] <... futex resumed>) = 0 [pid 331] <... memfd_create resumed>) = 3 [pid 318] <... sendfile resumed>) = 376832 [pid 315] <... chdir resumed>) = 0 [pid 314] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 301] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 318] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 315] ioctl(4, LOOP_CLR_FD [pid 314] <... futex resumed>) = 0 [pid 310] <... mmap resumed>) = 0x7ff29ae8a000 [pid 301] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 331] <... mmap resumed>) = 0x7ff29ae2b000 [pid 318] <... futex resumed>) = 0 [pid 315] <... ioctl resumed>) = 0 [pid 314] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 24.193197][ T312] ------------[ cut here ]------------ [ 24.212823][ T312] kernel BUG at fs/ext4/ext4.h:3355! [ 24.218311][ T312] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 24.224213][ T312] CPU: 1 PID: 312 Comm: syz-executor264 Not tainted 5.15.106-syzkaller-00249-g19c0ed55a470 #0 [pid 310] mprotect(0x7ff29ae8b000, 131072, PROT_READ|PROT_WRITE [pid 301] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 331] 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 [pid 318] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 315] close(4 [pid 314] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 310] <... mprotect resumed>) = 0 [pid 301] <... futex resumed>) = 0 [pid 331] <... write resumed>) = 524288 [pid 315] <... close resumed>) = 0 [ 24.234280][ T312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 24.244178][ T312] RIP: 0010:ext4_mb_load_buddy_gfp+0xee5/0xf00 [ 24.250178][ T312] Code: 11 0f c8 ff e9 0d f4 ff ff e8 87 c7 86 ff 48 c7 c7 80 81 a9 86 4c 89 fe 4c 89 f2 e8 05 93 9a 00 e9 87 f2 ff ff e8 6b c7 86 ff <0f> 0b e8 64 c7 86 ff 0f 0b e8 5d c7 86 ff 0f 0b 66 2e 0f 1f 84 00 [ 24.269733][ T312] RSP: 0018:ffffc90000b176c0 EFLAGS: 00010293 [ 24.275643][ T312] RAX: ffffffff81e92455 RBX: 00000000ffff821c RCX: ffff88811f0ce2c0 [ 24.283449][ T312] RDX: 0000000000000000 RSI: 00000000ffff821c RDI: 0000000000000001 [ 24.291257][ T312] RBP: ffffc90000b17750 R08: ffffffff81e91684 R09: ffffed1021235f2a [ 24.299070][ T312] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11023d14079 [ 24.306970][ T312] R13: ffff88811e8a03c8 R14: 0000000000000001 R15: ffff88811f460000 [ 24.315042][ T312] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 24.323807][ T312] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.330227][ T312] CR2: 00007ff2a32f0398 CR3: 000000011e280000 CR4: 00000000003506a0 [ 24.338048][ T312] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.345852][ T312] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.353665][ T312] Call Trace: [ 24.356787][ T312] [ 24.359564][ T312] ext4_discard_preallocations+0x79c/0xef0 [ 24.365206][ T312] ? mb_test_and_clear_bits+0x240/0x240 [ 24.370592][ T312] ? rwsem_write_trylock+0x15b/0x290 [ 24.375705][ T312] ? kmem_cache_free+0x116/0x2e0 [ 24.380482][ T312] ext4_release_file+0x16e/0x310 [ 24.385255][ T312] ? ext4_file_open+0x700/0x700 [ 24.389949][ T312] __fput+0x3fe/0x910 [ 24.393765][ T312] ____fput+0x15/0x20 [ 24.397574][ T312] task_work_run+0x129/0x190 [ 24.402000][ T312] do_exit+0xc60/0x2b60 [ 24.405991][ T312] ? __switch_to+0x62a/0x1190 [ 24.410504][ T312] ? put_task_struct+0x80/0x80 [ 24.415103][ T312] ? __kasan_check_read+0x11/0x20 [ 24.419968][ T312] ? __kasan_check_write+0x14/0x20 [ 24.424910][ T312] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 24.429858][ T312] ? _raw_spin_lock_irqsave+0x210/0x210 [ 24.435242][ T312] do_group_exit+0x141/0x310 [ 24.439666][ T312] get_signal+0x7a3/0x1630 [ 24.443920][ T312] arch_do_signal_or_restart+0xbd/0x1680 [ 24.449387][ T312] ? __kasan_check_write+0x14/0x20 [ 24.454332][ T312] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 24.459281][ T312] ? _raw_spin_lock_irqsave+0x210/0x210 [ 24.464663][ T312] ? _raw_spin_unlock_irq+0x4e/0x70 [ 24.469785][ T312] ? __kasan_check_write+0x14/0x20 [ 24.474728][ T312] ? ptrace_stop+0x6ff/0xa90 [ 24.479154][ T312] ? get_sigframe_size+0x10/0x10 [ 24.483939][ T312] exit_to_user_mode_loop+0xa0/0xe0 [ 24.488966][ T312] exit_to_user_mode_prepare+0x5a/0xa0 [ 24.494259][ T312] syscall_exit_to_user_mode+0x26/0x160 [ 24.499645][ T312] do_syscall_64+0x49/0xb0 [ 24.503894][ T312] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.509618][ T312] RIP: 0033:0x7ff2a329f729 [ 24.513873][ T312] Code: Unable to access opcode bytes at RIP 0x7ff2a329f6ff. [ 24.521078][ T312] RSP: 002b:00007ff2a324b2f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 24.529322][ T312] RAX: 0000000000000000 RBX: 00007ff2a33247a0 RCX: 00007ff2a329f729 [pid 314] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 310] clone(child_stack=0x7ff29aeaa3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 301] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 332] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 331] munmap(0x7ff29ae2b000, 524288 [pid 315] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 314] <... open resumed>) = 6 [pid 332] ioctl(4, LOOP_CLR_FD [pid 331] <... munmap resumed>) = 0 [pid 315] <... futex resumed>) = 1 [pid 314] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 310] <... clone resumed>, parent_tid=[333], tls=0x7ff29aeaa700, child_tidptr=0x7ff29aeaa9d0) = 333 [pid 332] <... ioctl resumed>) = 0 [pid 331] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 315] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 314] <... futex resumed>) = 1 [pid 310] futex(0x7ff2a33247b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... futex resumed>) = 0 [pid 331] <... openat resumed>) = 4 [pid 314] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 310] <... futex resumed>) = 0 [pid 301] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 331] ioctl(4, LOOP_SET_FD, 3 [pid 314] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 310] futex(0x7ff2a33247bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 301] <... futex resumed>) = 0 [pid 332] ioctl(4, LOOP_SET_FD, 3 [pid 331] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 314] 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 [pid 301] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 332] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 331] ioctl(4, LOOP_CLR_FD [pid 314] <... writev resumed>) = 1099 [pid 332] close(4 [pid 331] <... ioctl resumed>) = 0 [pid 314] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 332] <... close resumed>) = 0 [pid 314] <... futex resumed>) = 1 [pid 301] <... futex resumed>) = 0 [pid 332] close(3 [pid 314] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 301] exit_group(0 [pid 332] <... close resumed>) = 0 [pid 314] <... futex resumed>) = ? [pid 301] <... exit_group resumed>) = ? [pid 332] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 331] ioctl(4, LOOP_SET_FD, 3 [pid 314] +++ exited with 0 +++ [pid 301] +++ exited with 0 +++ [pid 332] <... futex resumed>) = 1 [pid 331] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 330] <... futex resumed>) = 0 [pid 332] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 331] close(4 [pid 330] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=301, si_uid=0, si_status=0, si_utime=0, si_stime=5} --- [pid 332] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 331] <... close resumed>) = 0 [pid 330] <... futex resumed>) = 0 [pid 298] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 332] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 [pid 331] close(3 [pid 330] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 298] <... openat resumed>) = 3 [pid 332] <... open resumed>) = 3 [pid 331] <... close resumed>) = 0 [pid 298] ioctl(3, LOOP_CLR_FD [pid 332] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 331] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... ioctl resumed>) = 0 [pid 332] <... futex resumed>) = 1 [pid 331] <... futex resumed>) = 1 [pid 330] <... futex resumed>) = 0 [pid 329] <... futex resumed>) = 0 [pid 298] close(3 [pid 332] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 331] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 330] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 329] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... close resumed>) = 0 [pid 332] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 331] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 330] <... futex resumed>) = 0 [pid 329] <... futex resumed>) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 332] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 331] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 [pid 330] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 329] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 332] <... open resumed>) = 4 [pid 331] <... open resumed>) = 3 [pid 298] <... clone resumed>, child_tidptr=0x555556bc05d0) = 334 [pid 332] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 331] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 332] <... futex resumed>) = 1 [pid 331] <... futex resumed>) = 1 [pid 330] <... futex resumed>) = 0 [pid 329] <... futex resumed>) = 0 [pid 332] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 331] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 330] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 329] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 332] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 331] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 330] <... futex resumed>) = 0 [pid 329] <... futex resumed>) = 0 [pid 332] ftruncate(4, 33587199 [pid 331] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 330] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 329] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 332] <... ftruncate resumed>) = 0 [pid 331] <... open resumed>) = 4 [pid 332] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 331] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 332] <... futex resumed>) = 1 [pid 331] <... futex resumed>) = 1 [pid 330] <... futex resumed>) = 0 [pid 329] <... futex resumed>) = 0 ./strace-static-x86_64: Process 334 attached [pid 332] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 331] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 330] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 329] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 334] set_robust_list(0x555556bc05e0, 24 [pid 332] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 331] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 330] <... futex resumed>) = 0 [pid 329] <... futex resumed>) = 0 [pid 334] <... set_robust_list resumed>) = 0 [pid 332] sendfile(3, 4, NULL, 281474978811909 [pid 331] ftruncate(4, 33587199 [pid 330] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 329] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 331] <... ftruncate resumed>) = 0 [pid 334] <... prctl resumed>) = 0 [pid 331] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 334] setpgid(0, 0 [pid 331] <... futex resumed>) = 1 [pid 329] <... futex resumed>) = 0 [pid 334] <... setpgid resumed>) = 0 [pid 331] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 329] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 331] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 329] <... futex resumed>) = 0 [pid 334] <... openat resumed>) = 3 [pid 331] sendfile(3, 4, NULL, 281474978811909 [pid 329] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 334] write(3, "1000", 4) = 4 [pid 334] close(3) = 0 [pid 334] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff2a322b000 [pid 334] mprotect(0x7ff2a322c000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 334] clone(child_stack=0x7ff2a324b3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[335], tls=0x7ff2a324b700, child_tidptr=0x7ff2a324b9d0) = 335 [pid 334] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 334] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 335 attached [pid 335] set_robust_list(0x7ff2a324b9e0, 24) = 0 [pid 310] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 310] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 318] <... futex resumed>) = 0 [pid 310] <... futex resumed>) = 1 [pid 318] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 310] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 335] memfd_create("syzkaller", 0 [pid 318] <... open resumed>) = 6 [pid 335] <... memfd_create resumed>) = 3 [pid 318] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 335] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 318] <... futex resumed>) = 1 [pid 310] <... futex resumed>) = 0 [pid 335] <... mmap resumed>) = 0x7ff29ae2b000 [pid 318] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 310] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 318] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 310] <... futex resumed>) = 0 [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 [pid 310] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 318] <... writev resumed>) = 1099 [pid 318] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 310] <... futex resumed>) = 0 [pid 318] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [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 [pid 308] <... futex resumed>) = 0 [pid 308] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 315] <... futex resumed>) = 0 [pid 308] <... futex resumed>) = 1 [pid 315] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 [pid 308] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 333 attached [pid 335] <... write resumed>) = 524288 [pid 315] <... open resumed>) = 4 [pid 333] set_robust_list(0x7ff29aeaa9e0, 24 [pid 315] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 333] <... set_robust_list resumed>) = 0 [pid 315] <... futex resumed>) = 1 [pid 308] <... futex resumed>) = 0 [pid 333] mount("/dev/loop5", "./bus", NULL, MS_BIND, NULL [pid 315] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 24.571242][ T312] Modules linked in: [ 24.575636][ T312] ---[ end trace 99a38424ce953f7f ]--- [ 24.584008][ T312] RIP: 0010:ext4_mb_load_buddy_gfp+0xee5/0xf00 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 343 attached ./strace-static-x86_64: Process 342 attached [pid 340] <... set_robust_list resumed>) = 0 [pid 339] <... set_robust_list resumed>) = 0 [pid 336] <... mount resumed>) = 0 [pid 335] <... ftruncate resumed>) = 0 [pid 336] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 335] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 336] <... futex resumed>) = 0 [pid 335] <... futex resumed>) = 0 [pid 336] futex(0x7ff2a33247b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 335] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 341] <... set_robust_list resumed>) = 0 [pid 341] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 341] futex(0x7ff2a33247cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 329] <... futex resumed>) = 0 [pid 329] futex(0x7ff2a33247c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 329] futex(0x7ff2a33247cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] <... futex resumed>) = 1 [pid 341] 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 341] futex(0x7ff2a33247cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 329] <... futex resumed>) = 0 [pid 341] <... futex resumed>) = 1 [pid 341] futex(0x7ff2a33247c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] <... mount resumed>) = 0 [pid 337] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 337] futex(0x7ff2a33247b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 343] set_robust_list(0x555556bc05e0, 24) = 0 [pid 343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 343] setpgid(0, 0) = 0 [pid 343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 343] write(3, "1000", 4) = 4 [pid 343] close(3) = 0 [pid 343] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff2a322b000 [pid 343] mprotect(0x7ff2a322c000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 343] clone(child_stack=0x7ff2a324b3f0, 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=0x7ff2a324b700, child_tidptr=0x7ff2a324b9d0) = 345 [pid 343] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 343] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 345 attached [pid 345] set_robust_list(0x7ff2a324b9e0, 24) = 0 [pid 342] set_robust_list(0x7ff2a324b9e0, 24 [pid 340] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 339] sendfile(3, 4, NULL, 281474978811909 [pid 296] <... clone resumed>, child_tidptr=0x555556bc05d0) = 343 [pid 342] <... set_robust_list resumed>) = 0 [pid 342] memfd_create("syzkaller", 0 [pid 340] <... open resumed>) = 5 [pid 342] <... memfd_create resumed>) = 3 [pid 340] futex(0x7ff2a33247cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 345] memfd_create("syzkaller", 0) = 3 [pid 345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff29ae2b000 [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 [pid 342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff29ae2b000 [pid 342] 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 [pid 340] <... futex resumed>) = 1 [pid 330] <... futex resumed>) = 0 [pid 340] futex(0x7ff2a33247c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 330] futex(0x7ff2a33247b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] <... write resumed>) = 524288 [pid 342] munmap(0x7ff29ae2b000, 524288) = 0 [pid 342] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 342] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 342] ioctl(4, LOOP_CLR_FD) = 0 [pid 342] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 342] close(4 [pid 336] <... futex resumed>) = 0 [pid 330] <... futex resumed>) = 1 [pid 336] 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 336] futex(0x7ff2a33247bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 24.590796][ T312] Code: 11 0f c8 ff e9 0d f4 ff ff e8 87 c7 86 ff 48 c7 c7 80 81 a9 86 4c 89 fe 4c 89 f2 e8 05 93 9a 00 e9 87 f2 ff ff e8 6b c7 86 ff <0f> 0b e8 64 c7 86 ff 0f 0b e8 5d c7 86 ff 0f 0b 66 2e 0f 1f 84 00 [ 24.611813][ T312] RSP: 0018:ffffc90000b176c0 EFLAGS: 00010293 [ 24.619850][ T312] RAX: ffffffff81e92455 RBX: 00000000ffff821c RCX: ffff88811f0ce2c0 [ 24.629071][ T312] RDX: 0000000000000000 RSI: 00000000ffff821c RDI: 0000000000000001 [ 24.637472][ T312] RBP: ffffc90000b17750 R08: ffffffff81e91684 R09: ffffed1021235f2a [pid 336] futex(0x7ff2a33247b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 334] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 330] futex(0x7ff2a33247bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 342] <... close resumed>) = 0 [pid 342] close(3) = 0 [pid 342] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 342] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 345] <... write resumed>) = 524288 [pid 345] munmap(0x7ff29ae2b000, 524288 [pid 334] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 330] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 338] <... futex resumed>) = 0 [pid 345] <... munmap resumed>) = 0 [pid 338] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 345] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 335] <... futex resumed>) = 0 [pid 338] <... futex resumed>) = 1 [pid 334] <... futex resumed>) = 1 [pid 335] mount("/dev/loop2", "./bus", NULL, MS_BIND, NULL) = 0 [pid 335] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 335] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 342] <... futex resumed>) = 0 [pid 342] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 3 [pid 342] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 345] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 345] ioctl(4, LOOP_CLR_FD) = 0 [pid 338] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 338] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] <... futex resumed>) = 0 [pid 338] <... futex resumed>) = 1 [pid 342] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 338] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 342] <... open resumed>) = 4 [pid 342] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 338] <... futex resumed>) = 0 [pid 342] ftruncate(4, 33587199 [pid 338] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] <... ftruncate resumed>) = -1 EINVAL (Invalid argument) [pid 338] <... futex resumed>) = 0 [pid 342] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 342] <... futex resumed>) = 0 [pid 338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 342] sendfile(3, 4, NULL, 281474978811909 [pid 338] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 334] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 338] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 345] close(4) = 0 [pid 334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 345] close(3 [pid 334] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 335] <... futex resumed>) = 0 [pid 334] <... futex resumed>) = 1 [pid 335] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 345] <... close resumed>) = 0 [pid 345] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 343] <... futex resumed>) = 0 [pid 345] <... futex resumed>) = 1 [pid 343] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 345] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 [pid 343] <... futex resumed>) = 0 [pid 345] <... open resumed>) = 3 [pid 343] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 343] <... futex resumed>) = 0 [pid 345] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 343] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 345] <... open resumed>) = 4 [pid 343] <... futex resumed>) = 0 [pid 345] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 343] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 0 [pid 343] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 345] ftruncate(4, 33587199 [pid 343] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 345] <... ftruncate resumed>) = -1 EINVAL (Invalid argument) [pid 343] <... futex resumed>) = 0 [pid 345] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 343] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 335] <... open resumed>) = 5 [pid 334] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] <... futex resumed>) = 0 [pid 343] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 345] sendfile(3, 4, NULL, 281474978811909 [pid 343] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 343] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 335] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 335] <... futex resumed>) = 0 [ 24.645386][ T312] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11023d14079 [ 24.654746][ T312] R13: ffff88811e8a03c8 R14: 0000000000000001 R15: ffff88811f460000 [ 24.665608][ T312] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 24.675479][ T312] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.682687][ T312] CR2: 0000000020001000 CR3: 000000011bdb9000 CR4: 00000000003506a0 [pid 334] futex(0x7ff2a33247a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 335] 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 [pid 334] <... futex resumed>) = 0 [pid 334] futex(0x7ff2a33247ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 335] <... writev resumed>) = 1099 [pid 335] futex(0x7ff2a33247ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 335] futex(0x7ff2a33247a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 334] <... futex resumed>) = 0 [pid 338] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 24.691651][ T312] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.700764][ T312] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.709366][ T312] Kernel panic - not syncing: Fatal exception [ 24.715403][ T312] Kernel Offset: disabled [ 24.719542][ T312] Rebooting in 86400 seconds..