./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4162792741 <...> Warning: Permanently added '10.128.1.32' (ED25519) to the list of known hosts. execve("./syz-executor4162792741", ["./syz-executor4162792741"], 0x7ffc0adec650 /* 10 vars */) = 0 brk(NULL) = 0x55557c767000 brk(0x55557c767d00) = 0x55557c767d00 arch_prctl(ARCH_SET_FS, 0x55557c767380) = 0 set_tid_address(0x55557c767650) = 5044 set_robust_list(0x55557c767660, 24) = 0 rseq(0x55557c767ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4162792741", 4096) = 28 getrandom("\xdd\xa0\xdb\xd5\xa7\x31\x15\xe0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557c767d00 brk(0x55557c788d00) = 0x55557c788d00 brk(0x55557c789000) = 0x55557c789000 mprotect(0x7f5fdcf73000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557c767650) = 5045 ./strace-static-x86_64: Process 5045 attached [pid 5045] set_robust_list(0x55557c767660, 24) = 0 [pid 5045] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5045] setsid() = 1 [pid 5045] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5045] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5045] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5045] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5045] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5045] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5045] unshare(CLONE_NEWNS) = 0 [pid 5045] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5045] unshare(CLONE_NEWIPC) = 0 [pid 5045] unshare(CLONE_NEWCGROUP) = 0 [pid 5045] unshare(CLONE_NEWUTS) = 0 [pid 5045] unshare(CLONE_SYSVSEM) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "16777216", 8) = 8 [pid 5045] close(3) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "536870912", 9) = 9 [pid 5045] close(3) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "1024", 4) = 4 [pid 5045] close(3) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "8192", 4) = 4 [pid 5045] close(3) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "1024", 4) = 4 [pid 5045] close(3) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "1024", 4) = 4 [pid 5045] close(3) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5045] close(3) = 0 [pid 5045] getpid() = 1 [pid 5045] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<) = 0 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5049 attached , child_tidptr=0x55557c767650) = 3 [pid 5049] set_robust_list(0x55557c767660, 24) = 0 [pid 5049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5049] setpgid(0, 0) = 0 [pid 5049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5049] write(3, "1000", 4) = 4 [pid 5049] close(3) = 0 executing program [pid 5049] write(1, "executing program\n", 18) = 18 [pid 5049] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5049] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5049] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=3, si_uid=0} --- [ 166.371221][ T29] audit: type=1800 audit(1717355326.945:3): pid=5049 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor416" name="bus" dev="sda1" ino=1928 res=0 errno=0 [pid 5049] +++ killed by SIGXFSZ (core dumped) +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=3, si_uid=0, si_status=SIGXFSZ, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557c767650) = 4 ./strace-static-x86_64: Process 5050 attached [pid 5050] set_robust_list(0x55557c767660, 24) = 0 [pid 5050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5050] setpgid(0, 0) = 0 [pid 5050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] write(3, "1000", 4) = 4 [pid 5050] close(3) = 0 executing program [pid 5050] write(1, "executing program\n", 18) = 18 [pid 5050] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5050] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5050] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=4, si_uid=0} --- [ 166.630213][ T29] audit: type=1800 audit(1717355327.195:4): pid=5050 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor416" name="bus" dev="sda1" ino=1928 res=0 errno=0 [pid 5050] +++ killed by SIGXFSZ (core dumped) +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=4, si_uid=0, si_status=SIGXFSZ, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5051 attached , child_tidptr=0x55557c767650) = 5 [pid 5051] set_robust_list(0x55557c767660, 24) = 0 [pid 5051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5051] setpgid(0, 0) = 0 [pid 5051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5051] write(3, "1000", 4) = 4 executing program [pid 5051] close(3) = 0 [pid 5051] write(1, "executing program\n", 18) = 18 [pid 5051] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5051] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5051] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=5, si_uid=0} --- [ 166.879534][ T29] audit: type=1800 audit(1717355327.445:5): pid=5051 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor416" name="bus" dev="sda1" ino=1928 res=0 errno=0 [pid 5051] +++ killed by SIGXFSZ (core dumped) +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=5, si_uid=0, si_status=SIGXFSZ, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5052 attached [pid 5052] set_robust_list(0x55557c767660, 24) = 0 [pid 5052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5052] setpgid(0, 0) = 0 [pid 5045] <... clone resumed>, child_tidptr=0x55557c767650) = 6 [pid 5052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5052] write(3, "1000", 4) = 4 [pid 5052] close(3executing program ) = 0 [pid 5052] write(1, "executing program\n", 18) = 18 [pid 5052] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5052] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5052] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=6, si_uid=0} --- [ 167.125028][ T29] audit: type=1800 audit(1717355327.695:6): pid=5052 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor416" name="bus" dev="sda1" ino=1928 res=0 errno=0 [pid 5052] +++ killed by SIGXFSZ (core dumped) +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=6, si_uid=0, si_status=SIGXFSZ, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5053 attached , child_tidptr=0x55557c767650) = 7 [pid 5053] set_robust_list(0x55557c767660, 24) = 0 [pid 5053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5053] setpgid(0, 0) = 0 [pid 5053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5053] write(3, "1000", 4) = 4 [pid 5053] close(3) = 0 [pid 5053] write(1, "executing program\n", 18executing program ) = 18 [pid 5053] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5053] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5053] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=7, si_uid=0} --- [ 167.376421][ T29] audit: type=1800 audit(1717355327.945:7): pid=5053 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor416" name="bus" dev="sda1" ino=1928 res=0 errno=0 [pid 5053] +++ killed by SIGXFSZ (core dumped) +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=7, si_uid=0, si_status=SIGXFSZ, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5054 attached , child_tidptr=0x55557c767650) = 8 [pid 5054] set_robust_list(0x55557c767660, 24) = 0 [pid 5054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5054] setpgid(0, 0) = 0 [pid 5054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5054] write(3, "1000", 4) = 4 [pid 5054] close(3) = 0 executing program [pid 5054] write(1, "executing program\n", 18) = 18 [pid 5054] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5054] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5054] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=8, si_uid=0} --- [ 167.635244][ T29] audit: type=1800 audit(1717355328.205:8): pid=5054 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor416" name="bus" dev="sda1" ino=1928 res=0 errno=0 [pid 5054] +++ killed by SIGXFSZ (core dumped) +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=8, si_uid=0, si_status=SIGXFSZ, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5055 attached , child_tidptr=0x55557c767650) = 9 [pid 5055] set_robust_list(0x55557c767660, 24) = 0 [pid 5055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5055] setpgid(0, 0) = 0 [pid 5055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5055] write(3, "1000", 4) = 4 executing program [pid 5055] close(3) = 0 [pid 5055] write(1, "executing program\n", 18) = 18 [pid 5055] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5055] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5055] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=9, si_uid=0} --- [ 167.888543][ T29] audit: type=1800 audit(1717355328.455:9): pid=5055 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor416" name="bus" dev="sda1" ino=1928 res=0 errno=0 [pid 5055] +++ killed by SIGXFSZ (core dumped) +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=9, si_uid=0, si_status=SIGXFSZ, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5045] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5056 attached , child_tidptr=0x55557c767650) = 10 [pid 5056] set_robust_list(0x55557c767660, 24) = 0 [pid 5056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5056] setpgid(0, 0) = 0 [pid 5056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5056] write(3, "1000", 4) = 4 [pid 5056] close(3executing program ) = 0 [pid 5056] write(1, "executing program\n", 18) = 18 [pid 5056] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5056] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5056] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=10, si_uid=0} --- [ 168.151691][ T29] audit: type=1800 audit(1717355328.715:10): pid=5056 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor416" name="bus" dev="sda1" ino=1928 res=0 errno=0 [pid 5056] +++ killed by SIGXFSZ (core dumped) +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=10, si_uid=0, si_status=SIGXFSZ, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5057 attached , child_tidptr=0x55557c767650) = 11 [pid 5057] set_robust_list(0x55557c767660, 24) = 0 [pid 5057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5057] setpgid(0, 0) = 0 [pid 5057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5057] write(3, "1000", 4) = 4 [pid 5057] close(3) = 0 executing program [pid 5057] write(1, "executing program\n", 18) = 18 [pid 5057] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5057] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5057] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=11, si_uid=0} --- [ 168.408342][ T29] audit: type=1800 audit(1717355328.975:11): pid=5057 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor416" name="bus" dev="sda1" ino=1928 res=0 errno=0 [pid 5057] +++ killed by SIGXFSZ (core dumped) +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=11, si_uid=0, si_status=SIGXFSZ, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5058 attached , child_tidptr=0x55557c767650) = 12 [pid 5058] set_robust_list(0x55557c767660, 24) = 0 [pid 5058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5058] setpgid(0, 0) = 0 [pid 5058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "1000", 4executing program ) = 4 [pid 5058] close(3) = 0 [pid 5058] write(1, "executing program\n", 18) = 18 [pid 5058] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5058] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5058] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=12, si_uid=0} --- [pid 5058] +++ killed by SIGXFSZ (core dumped) +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=12, si_uid=0, si_status=SIGXFSZ, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5045] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5059 attached , child_tidptr=0x55557c767650) = 13 [pid 5059] set_robust_list(0x55557c767660, 24) = 0 [pid 5059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5059] setpgid(0, 0) = 0 [pid 5059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5059] write(3, "1000", 4) = 4 [pid 5059] close(3) = 0 executing program [pid 5059] write(1, "executing program\n", 18) = 18 [pid 5059] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5059] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5059] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=13, si_uid=0} --- [pid 5059] +++ killed by SIGXFSZ (core dumped) +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=13, si_uid=0, si_status=SIGXFSZ, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5060 attached , child_tidptr=0x55557c767650) = 14 [pid 5060] set_robust_list(0x55557c767660, 24) = 0 [pid 5060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5060] setpgid(0, 0) = 0 [pid 5060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] write(3, "1000", 4) = 4 [pid 5060] close(3executing program ) = 0 [pid 5060] write(1, "executing program\n", 18) = 18 [pid 5060] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5060] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5060] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=14, si_uid=0} --- [pid 5060] +++ killed by SIGXFSZ (core dumped) +++ [pid 5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=14, si_uid=0, si_status=SIGXFSZ, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5061 attached , child_tidptr=0x55557c767650) = 15 [pid 5061] set_robust_list(0x55557c767660, 24) = 0 [pid 5061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5061] setpgid(0, 0) = 0 [pid 5061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5061] write(3, "1000", 4) = 4 [pid 5061] close(3) = 0 [pid 5061] write(1, "executing program\n", 18executing program ) = 18 [pid 5061] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 000) = 3 [pid 5061] fallocate(3, 0, 0, 2147483647) = -1 EFBIG (File too large) [pid 5061] --- SIGXFSZ {si_signo=SIGXFSZ, si_code=SI_USER, si_pid=15, si_uid=0} --- [ 169.639208][ T98] ===================================================== [ 169.646555][ T98] BUG: KMSAN: uninit-value in virtqueue_add+0x1e86/0x65c0 [ 169.653885][ T98] virtqueue_add+0x1e86/0x65c0 [ 169.658848][ T98] virtqueue_add_sgs+0x186/0x1b0 [ 169.663989][ T98] virtscsi_add_cmd+0x838/0xad0 [ 169.669040][ T98] virtscsi_queuecommand+0x898/0xa60 [ 169.674529][ T98] scsi_queue_rq+0x4cc7/0x5a80 [ 169.679493][ T98] blk_mq_dispatch_rq_list+0x79b/0x3440 [ 169.685265][ T98] __blk_mq_sched_dispatch_requests+0x11b7/0x26e0 [ 169.691917][ T98] blk_mq_sched_dispatch_requests+0x12f/0x270 [ 169.698213][ T98] blk_mq_run_work_fn+0xd0/0x280 [ 169.703347][ T98] process_scheduled_works+0xa81/0x1bd0 [ 169.709088][ T98] worker_thread+0xea5/0x1560 [ 169.713952][ T98] kthread+0x3e2/0x540 [ 169.718212][ T98] ret_from_fork+0x6d/0x90 [ 169.722820][ T98] ret_from_fork_asm+0x1a/0x30 [ 169.727803][ T98] [ 169.730235][ T98] Uninit was stored to memory at: [ 169.735610][ T98] copy_page_from_iter_atomic+0x12b7/0x2ae0 [ 169.741720][ T98] generic_perform_write+0x4c1/0xc60 [ 169.747250][ T98] ext4_buffered_write_iter+0x564/0xaa0 [ 169.752997][ T98] ext4_file_write_iter+0x208/0x3450 [ 169.758465][ T98] __kernel_write_iter+0x64d/0xc80 [ 169.763807][ T98] dump_user_range+0x8dc/0xee0 [ 169.768787][ T98] elf_core_dump+0x57c7/0x5ae0 [ 169.773770][ T98] do_coredump+0x32d5/0x4920 [ 169.778556][ T98] get_signal+0x267e/0x2d00 [ 169.783270][ T98] arch_do_signal_or_restart+0x53/0xcb0 [ 169.789061][ T98] syscall_exit_to_user_mode+0x5d/0x160 [ 169.794864][ T98] do_syscall_64+0xdc/0x1e0 [ 169.799571][ T98] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 169.805705][ T98] [ 169.808121][ T98] Uninit was created at: [ 169.812593][ T98] __alloc_pages+0x9d6/0xe70 [ 169.817347][ T98] alloc_pages_mpol+0x299/0x990 [ 169.822375][ T98] alloc_pages+0x1bf/0x1e0 [ 169.826979][ T98] dump_user_range+0x4a/0xee0 [ 169.831852][ T98] elf_core_dump+0x57c7/0x5ae0 [ 169.836822][ T98] do_coredump+0x32d5/0x4920 [ 169.841596][ T98] get_signal+0x267e/0x2d00 [ 169.846390][ T98] arch_do_signal_or_restart+0x53/0xcb0 [ 169.852210][ T98] syscall_exit_to_user_mode+0x5d/0x160 [ 169.857975][ T98] do_syscall_64+0xdc/0x1e0 [ 169.862708][ T98] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 169.868832][ T98] [ 169.871262][ T98] Bytes 0-4095 of 4096 are uninitialized [ 169.877014][ T98] Memory access of size 4096 starts at ffff88812231e000 [ 169.884072][ T98] [ 169.886504][ T98] CPU: 0 PID: 98 Comm: kworker/0:1H Not tainted 6.9.0-syzkaller-02707-g614da38e2f7a #0 [ 169.896332][ T98] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 169.906559][ T98] Workqueue: kblockd blk_mq_run_work_fn [ 169.912323][ T98] ===================================================== [ 169.919365][ T98] Disabling lock debugging due to kernel taint [ 169.925647][ T98] Kernel panic - not syncing: kmsan.panic set ... [ 169.932298][ T98] CPU: 0 PID: 98 Comm: kworker/0:1H Tainted: G B 6.9.0-syzkaller-02707-g614da38e2f7a #0 [ 169.943596][ T98] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 169.953804][ T98] Workqueue: kblockd blk_mq_run_work_fn [ 169.959569][ T98] Call Trace: [ 169.962983][ T98] [ 169.966024][ T98] dump_stack_lvl+0x216/0x2d0 [ 169.970936][ T98] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 169.976953][ T98] dump_stack+0x1e/0x30 [ 169.981315][ T98] panic+0x4e2/0xcd0 [ 169.985417][ T98] ? kmsan_get_metadata+0xf1/0x1d0 [ 169.990744][ T98] kmsan_report+0x2d5/0x2e0 [ 169.995456][ T98] ? kmsan_get_metadata+0x146/0x1d0 [ 170.000837][ T98] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 170.007329][ T98] ? kmsan_internal_check_memory+0x48c/0x560 [ 170.013547][ T98] ? kmsan_handle_dma+0xac/0xc0 [ 170.018573][ T98] ? virtqueue_add+0x1e86/0x65c0 [ 170.023708][ T98] ? virtqueue_add_sgs+0x186/0x1b0 [ 170.029027][ T98] ? virtscsi_add_cmd+0x838/0xad0 [ 170.034248][ T98] ? virtscsi_queuecommand+0x898/0xa60 [ 170.039903][ T98] ? scsi_queue_rq+0x4cc7/0x5a80 [ 170.045025][ T98] ? blk_mq_dispatch_rq_list+0x79b/0x3440 [ 170.050976][ T98] ? __blk_mq_sched_dispatch_requests+0x11b7/0x26e0 [ 170.057804][ T98] ? blk_mq_sched_dispatch_requests+0x12f/0x270 [ 170.064293][ T98] ? blk_mq_run_work_fn+0xd0/0x280 [ 170.069584][ T98] ? process_scheduled_works+0xa81/0x1bd0 [ 170.075512][ T98] ? worker_thread+0xea5/0x1560 [ 170.080546][ T98] ? kthread+0x3e2/0x540 [ 170.085034][ T98] ? ret_from_fork+0x6d/0x90 [ 170.089819][ T98] ? ret_from_fork_asm+0x1a/0x30 [ 170.094966][ T98] ? scsi_queue_rq+0x4335/0x5a80 [ 170.100095][ T98] ? blk_mq_dispatch_rq_list+0x79b/0x3440 [ 170.106048][ T98] ? __blk_mq_sched_dispatch_requests+0x11b7/0x26e0 [ 170.112882][ T98] ? blk_mq_sched_dispatch_requests+0x12f/0x270 [ 170.119359][ T98] ? blk_mq_run_work_fn+0xd0/0x280 [ 170.124651][ T98] ? process_scheduled_works+0xa81/0x1bd0 [ 170.130567][ T98] ? worker_thread+0xea5/0x1560 [ 170.135623][ T98] ? kthread+0x3e2/0x540 [ 170.140037][ T98] ? ret_from_fork+0x6d/0x90 [ 170.144785][ T98] ? ret_from_fork_asm+0x1a/0x30 [ 170.149934][ T98] ? kmsan_get_metadata+0x146/0x1d0 [ 170.155311][ T98] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 170.161309][ T98] ? kmsan_get_metadata+0x146/0x1d0 [ 170.166695][ T98] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 170.172718][ T98] ? should_fail_ex+0x4a/0x800 [ 170.177697][ T98] ? kmsan_get_metadata+0x146/0x1d0 [ 170.183083][ T98] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 170.189093][ T98] ? kmsan_get_metadata+0x146/0x1d0 [ 170.194481][ T98] kmsan_internal_check_memory+0x48c/0x560 [ 170.200549][ T98] kmsan_handle_dma+0xac/0xc0 [ 170.205412][ T98] virtqueue_add+0x1e86/0x65c0 [ 170.210397][ T98] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 170.216406][ T98] ? kmsan_get_metadata+0x146/0x1d0 [ 170.221796][ T98] ? kmsan_get_metadata+0x146/0x1d0 [ 170.227191][ T98] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 170.233220][ T98] virtqueue_add_sgs+0x186/0x1b0 [ 170.238383][ T98] virtscsi_add_cmd+0x838/0xad0 [ 170.243466][ T98] virtscsi_queuecommand+0x898/0xa60 [ 170.248962][ T98] ? __pfx_virtscsi_queuecommand+0x10/0x10 [ 170.254964][ T98] scsi_queue_rq+0x4cc7/0x5a80 [ 170.259950][ T98] ? __pfx_scsi_queue_rq+0x10/0x10 [ 170.265247][ T98] blk_mq_dispatch_rq_list+0x79b/0x3440 [ 170.271021][ T98] ? sbitmap_get+0x431/0x670 [ 170.275794][ T98] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 170.281823][ T98] ? dd_dispatch_request+0x9a1/0xa20 [ 170.287342][ T98] __blk_mq_sched_dispatch_requests+0x11b7/0x26e0 [ 170.294010][ T98] ? finish_task_switch+0x1c8/0x8f0 [ 170.299428][ T98] ? __blk_mq_sched_dispatch_requests+0x1031/0x26e0 [ 170.306263][ T98] blk_mq_sched_dispatch_requests+0x12f/0x270 [ 170.312579][ T98] blk_mq_run_work_fn+0xd0/0x280 [ 170.317709][ T98] ? __pfx_blk_mq_run_work_fn+0x10/0x10 [ 170.323441][ T98] process_scheduled_works+0xa81/0x1bd0 [ 170.329222][ T98] worker_thread+0xea5/0x1560 [ 170.334104][ T98] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 170.340124][ T98] kthread+0x3e2/0x540 [ 170.344388][ T98] ? __pfx_worker_thread+0x10/0x10 [ 170.349727][ T98] ? __pfx_kthread+0x10/0x10 [ 170.354527][ T98] ret_from_fork+0x6d/0x90 [ 170.359115][ T98] ? __pfx_kthread+0x10/0x10 [ 170.363920][ T98] ret_from_fork_asm+0x1a/0x30 [ 170.368911][ T98] [ 171.896531][ T98] Shutting down cpus with NMI [ 171.901795][ T98] Kernel Offset: disabled [ 171.906201][ T98] Rebooting in 86400 seconds..