./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3073671161 <...> Warning: Permanently added '10.128.0.228' (ED25519) to the list of known hosts. execve("./syz-executor3073671161", ["./syz-executor3073671161"], 0x7ffe35cf44c0 /* 10 vars */) = 0 brk(NULL) = 0x55555717e000 brk(0x55555717ed00) = 0x55555717ed00 arch_prctl(ARCH_SET_FS, 0x55555717e380) = 0 set_tid_address(0x55555717e650) = 5003 set_robust_list(0x55555717e660, 24) = 0 rseq(0x55555717eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3073671161", 4096) = 28 getrandom("\x1f\xfa\x35\xf9\xbf\x2f\x27\xc9", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555717ed00 brk(0x55555719fd00) = 0x55555719fd00 brk(0x5555571a0000) = 0x5555571a0000 mprotect(0x7f5df3900000, 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./strace-static-x86_64: Process 5005 attached , child_tidptr=0x55555717e650) = 5005 [pid 5005] set_robust_list(0x55555717e660, 24) = 0 [pid 5005] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5005] setsid() = 1 [pid 5005] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5005] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5005] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5005] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5005] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5005] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5005] unshare(CLONE_NEWNS) = 0 [pid 5005] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5005] unshare(CLONE_NEWIPC) = 0 [pid 5005] unshare(CLONE_NEWCGROUP) = 0 [pid 5005] unshare(CLONE_NEWUTS) = 0 [pid 5005] unshare(CLONE_SYSVSEM) = 0 [pid 5005] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5005] write(3, "16777216", 8) = 8 [pid 5005] close(3) = 0 [pid 5005] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5005] write(3, "536870912", 9) = 9 [pid 5005] close(3) = 0 [pid 5005] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5005] write(3, "1024", 4) = 4 [pid 5005] close(3) = 0 [pid 5005] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5005] write(3, "8192", 4) = 4 [pid 5005] close(3) = 0 [pid 5005] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5005] write(3, "1024", 4) = 4 [pid 5005] close(3) = 0 [pid 5005] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5005] write(3, "1024", 4) = 4 [pid 5005] close(3) = 0 [pid 5005] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5005] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5005] close(3) = 0 [pid 5005] getpid() = 1 [pid 5005] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5009] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5007] <... clone resumed>) = 3 [pid 5007] close(3) = -1 EBADF (Bad file descriptor) [pid 5007] close(4) = -1 EBADF (Bad file descriptor) [pid 5007] close(5) = -1 EBADF (Bad file descriptor) [pid 5007] close(6) = -1 EBADF (Bad file descriptor) [pid 5007] close(7) = -1 EBADF (Bad file descriptor) [pid 5007] close(8) = -1 EBADF (Bad file descriptor) [pid 5007] close(9) = -1 EBADF (Bad file descriptor) [pid 5007] close(10) = -1 EBADF (Bad file descriptor) [pid 5007] close(11) = -1 EBADF (Bad file descriptor) [pid 5007] close(12) = -1 EBADF (Bad file descriptor) [pid 5007] close(13) = -1 EBADF (Bad file descriptor) [pid 5007] close(14) = -1 EBADF (Bad file descriptor) [pid 5007] close(15) = -1 EBADF (Bad file descriptor) [pid 5007] close(16) = -1 EBADF (Bad file descriptor) [pid 5007] close(17) = -1 EBADF (Bad file descriptor) [pid 5007] close(18) = -1 EBADF (Bad file descriptor) [pid 5007] close(19) = -1 EBADF (Bad file descriptor) [pid 5007] close(20) = -1 EBADF (Bad file descriptor) [pid 5007] close(21) = -1 EBADF (Bad file descriptor) [pid 5007] close(22) = -1 EBADF (Bad file descriptor) [pid 5007] close(23) = -1 EBADF (Bad file descriptor) [pid 5007] close(24) = -1 EBADF (Bad file descriptor) [pid 5007] close(25) = -1 EBADF (Bad file descriptor) [pid 5007] close(26) = -1 EBADF (Bad file descriptor) [pid 5007] close(27) = -1 EBADF (Bad file descriptor) [pid 5007] close(28) = -1 EBADF (Bad file descriptor) [pid 5007] close(29) = -1 EBADF (Bad file descriptor) [pid 5007] exit_group(0) = ? [pid 5007] +++ exited with 0 +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5005] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555717e650) = 4 ./strace-static-x86_64: Process 5010 attached [pid 5010] set_robust_list(0x55555717e660, 24) = 0 [pid 5010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5010] setpgid(0, 0) = 0 [pid 5010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5010] write(3, "1000", 4) = 4 [pid 5010] close(3) = 0 [pid 5010] clone(child_stack=0x20000500, flags=CLONE_NEWIPC|CLONE_NEWNET [pid 5009] +++ killed by SIGSEGV (core dumped) +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=3, si_uid=0, si_status=SIGSEGV, si_utime=0, si_stime=9 /* 0.09 s */} --- ./strace-static-x86_64: Process 5012 attached [pid 5012] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5010] <... clone resumed>) = 5 [pid 5010] close(3) = -1 EBADF (Bad file descriptor) [pid 5010] close(4) = -1 EBADF (Bad file descriptor) [pid 5010] close(5) = -1 EBADF (Bad file descriptor) [pid 5010] close(6) = -1 EBADF (Bad file descriptor) [pid 5010] close(7) = -1 EBADF (Bad file descriptor) [pid 5010] close(8) = -1 EBADF (Bad file descriptor) [pid 5010] close(9) = -1 EBADF (Bad file descriptor) [pid 5010] close(10) = -1 EBADF (Bad file descriptor) [pid 5010] close(11) = -1 EBADF (Bad file descriptor) [pid 5010] close(12) = -1 EBADF (Bad file descriptor) [pid 5010] close(13) = -1 EBADF (Bad file descriptor) [pid 5010] close(14) = -1 EBADF (Bad file descriptor) [pid 5010] close(15) = -1 EBADF (Bad file descriptor) [pid 5010] close(16) = -1 EBADF (Bad file descriptor) [pid 5010] close(17) = -1 EBADF (Bad file descriptor) [pid 5010] close(18) = -1 EBADF (Bad file descriptor) [pid 5010] close(19) = -1 EBADF (Bad file descriptor) [pid 5010] close(20) = -1 EBADF (Bad file descriptor) [pid 5010] close(21) = -1 EBADF (Bad file descriptor) [pid 5010] close(22) = -1 EBADF (Bad file descriptor) [pid 5010] close(23) = -1 EBADF (Bad file descriptor) [pid 5010] close(24) = -1 EBADF (Bad file descriptor) [pid 5010] close(25) = -1 EBADF (Bad file descriptor) [pid 5010] close(26) = -1 EBADF (Bad file descriptor) [pid 5010] close(27) = -1 EBADF (Bad file descriptor) [pid 5010] close(28) = -1 EBADF (Bad file descriptor) [pid 5010] close(29) = -1 EBADF (Bad file descriptor) [pid 5010] exit_group(0) = ? [pid 5010] +++ exited with 0 +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5005] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555717e650) = 6 ./strace-static-x86_64: Process 5013 attached [pid 5013] set_robust_list(0x55555717e660, 24) = 0 [pid 5013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5013] setpgid(0, 0) = 0 [pid 5013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5013] write(3, "1000", 4) = 4 [pid 5013] close(3) = 0 [pid 5013] clone(child_stack=0x20000500, flags=CLONE_NEWIPC|CLONE_NEWNET [pid 5012] +++ killed by SIGSEGV (core dumped) +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=5, si_uid=0, si_status=SIGSEGV, si_utime=0, si_stime=15 /* 0.15 s */} --- ./strace-static-x86_64: Process 5015 attached [pid 5013] <... clone resumed>) = 7 [pid 5013] close(3) = -1 EBADF (Bad file descriptor) [pid 5013] close(4) = -1 EBADF (Bad file descriptor) [pid 5013] close(5) = -1 EBADF (Bad file descriptor) [pid 5013] close(6) = -1 EBADF (Bad file descriptor) [pid 5013] close(7) = -1 EBADF (Bad file descriptor) [pid 5013] close(8) = -1 EBADF (Bad file descriptor) [pid 5013] close(9) = -1 EBADF (Bad file descriptor) [pid 5013] close(10) = -1 EBADF (Bad file descriptor) [pid 5013] close(11 [pid 5015] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5013] close(12) = -1 EBADF (Bad file descriptor) [pid 5013] close(13) = -1 EBADF (Bad file descriptor) [pid 5013] close(14) = -1 EBADF (Bad file descriptor) [pid 5013] close(15) = -1 EBADF (Bad file descriptor) [pid 5013] close(16) = -1 EBADF (Bad file descriptor) [pid 5013] close(17) = -1 EBADF (Bad file descriptor) [pid 5013] close(18) = -1 EBADF (Bad file descriptor) [pid 5013] close(19) = -1 EBADF (Bad file descriptor) [pid 5013] close(20) = -1 EBADF (Bad file descriptor) [pid 5013] close(21) = -1 EBADF (Bad file descriptor) [pid 5013] close(22) = -1 EBADF (Bad file descriptor) [pid 5013] close(23) = -1 EBADF (Bad file descriptor) [pid 5013] close(24) = -1 EBADF (Bad file descriptor) [pid 5013] close(25) = -1 EBADF (Bad file descriptor) [pid 5013] close(26) = -1 EBADF (Bad file descriptor) [pid 5013] close(27) = -1 EBADF (Bad file descriptor) [pid 5013] close(28) = -1 EBADF (Bad file descriptor) [pid 5013] close(29) = -1 EBADF (Bad file descriptor) [pid 5013] exit_group(0) = ? [pid 5013] +++ exited with 0 +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5005] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5005] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5016 attached [pid 5016] set_robust_list(0x55555717e660, 24) = 0 [pid 5016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5016] setpgid(0, 0) = 0 [pid 5005] <... clone resumed>, child_tidptr=0x55555717e650) = 8 [pid 5016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5016] write(3, "1000", 4) = 4 [pid 5016] close(3) = 0 [pid 5016] clone(child_stack=0x20000500, flags=CLONE_NEWIPC|CLONE_NEWNET [pid 5015] +++ killed by SIGSEGV (core dumped) +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=7, si_uid=0, si_status=SIGSEGV, si_utime=0, si_stime=14 /* 0.14 s */} --- ./strace-static-x86_64: Process 5018 attached [pid 5018] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5016] <... clone resumed>) = 9 [pid 5016] close(3) = -1 EBADF (Bad file descriptor) [pid 5016] close(4) = -1 EBADF (Bad file descriptor) [pid 5016] close(5) = -1 EBADF (Bad file descriptor) [pid 5016] close(6) = -1 EBADF (Bad file descriptor) [pid 5016] close(7) = -1 EBADF (Bad file descriptor) [pid 5016] close(8) = -1 EBADF (Bad file descriptor) [pid 5016] close(9) = -1 EBADF (Bad file descriptor) [pid 5016] close(10) = -1 EBADF (Bad file descriptor) [pid 5016] close(11) = -1 EBADF (Bad file descriptor) [pid 5016] close(12) = -1 EBADF (Bad file descriptor) [pid 5016] close(13) = -1 EBADF (Bad file descriptor) [pid 5016] close(14) = -1 EBADF (Bad file descriptor) [pid 5016] close(15) = -1 EBADF (Bad file descriptor) [pid 5016] close(16) = -1 EBADF (Bad file descriptor) [pid 5016] close(17) = -1 EBADF (Bad file descriptor) [pid 5016] close(18) = -1 EBADF (Bad file descriptor) [pid 5016] close(19) = -1 EBADF (Bad file descriptor) [pid 5016] close(20) = -1 EBADF (Bad file descriptor) [pid 5016] close(21) = -1 EBADF (Bad file descriptor) [pid 5016] close(22) = -1 EBADF (Bad file descriptor) [pid 5016] close(23) = -1 EBADF (Bad file descriptor) [pid 5016] close(24) = -1 EBADF (Bad file descriptor) [pid 5016] close(25) = -1 EBADF (Bad file descriptor) [pid 5016] close(26) = -1 EBADF (Bad file descriptor) [pid 5016] close(27) = -1 EBADF (Bad file descriptor) [pid 5016] close(28) = -1 EBADF (Bad file descriptor) [pid 5016] close(29) = -1 EBADF (Bad file descriptor) [pid 5016] exit_group(0) = ? [pid 5016] +++ exited with 0 +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5005] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5019 attached , child_tidptr=0x55555717e650) = 10 [pid 5019] set_robust_list(0x55555717e660, 24) = 0 [pid 5019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5019] setpgid(0, 0) = 0 [pid 5019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "1000", 4) = 4 [pid 5019] close(3) = 0 [pid 5019] clone(child_stack=0x20000500, flags=CLONE_NEWIPC|CLONE_NEWNET [pid 5018] +++ killed by SIGSEGV (core dumped) +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=9, si_uid=0, si_status=SIGSEGV, si_utime=0, si_stime=13 /* 0.13 s */} --- ./strace-static-x86_64: Process 5021 attached [pid 5021] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5019] <... clone resumed>) = 11 [pid 5019] close(3) = -1 EBADF (Bad file descriptor) [pid 5019] close(4) = -1 EBADF (Bad file descriptor) [pid 5019] close(5) = -1 EBADF (Bad file descriptor) [pid 5019] close(6) = -1 EBADF (Bad file descriptor) [pid 5019] close(7) = -1 EBADF (Bad file descriptor) [pid 5019] close(8) = -1 EBADF (Bad file descriptor) [pid 5019] close(9) = -1 EBADF (Bad file descriptor) [pid 5019] close(10) = -1 EBADF (Bad file descriptor) [pid 5019] close(11) = -1 EBADF (Bad file descriptor) [pid 5019] close(12) = -1 EBADF (Bad file descriptor) [pid 5019] close(13) = -1 EBADF (Bad file descriptor) [pid 5019] close(14) = -1 EBADF (Bad file descriptor) [pid 5019] close(15) = -1 EBADF (Bad file descriptor) [pid 5019] close(16) = -1 EBADF (Bad file descriptor) [pid 5019] close(17) = -1 EBADF (Bad file descriptor) [pid 5019] close(18) = -1 EBADF (Bad file descriptor) [pid 5019] close(19) = -1 EBADF (Bad file descriptor) [pid 5019] close(20) = -1 EBADF (Bad file descriptor) [pid 5019] close(21) = -1 EBADF (Bad file descriptor) [pid 5019] close(22) = -1 EBADF (Bad file descriptor) [pid 5019] close(23) = -1 EBADF (Bad file descriptor) [pid 5019] close(24) = -1 EBADF (Bad file descriptor) [pid 5019] close(25) = -1 EBADF (Bad file descriptor) [pid 5019] close(26) = -1 EBADF (Bad file descriptor) [pid 5019] close(27) = -1 EBADF (Bad file descriptor) [pid 5019] close(28) = -1 EBADF (Bad file descriptor) [pid 5019] close(29) = -1 EBADF (Bad file descriptor) [pid 5019] exit_group(0) = ? [pid 5019] +++ exited with 0 +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5005] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5005] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5022 attached [pid 5022] set_robust_list(0x55555717e660, 24) = 0 [pid 5022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5022] setpgid(0, 0) = 0 [pid 5005] <... clone resumed>, child_tidptr=0x55555717e650) = 12 [pid 5022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5022] write(3, "1000", 4) = 4 [pid 5022] close(3) = 0 [pid 5022] clone(child_stack=0x20000500, flags=CLONE_NEWIPC|CLONE_NEWNET [pid 5021] +++ killed by SIGSEGV (core dumped) +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=11, si_uid=0, si_status=SIGSEGV, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5005] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5024 attached ) = 0 [pid 5024] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5022] <... clone resumed>) = 13 [pid 5022] close(3) = -1 EBADF (Bad file descriptor) [pid 5022] close(4) = -1 EBADF (Bad file descriptor) [pid 5022] close(5) = -1 EBADF (Bad file descriptor) [pid 5022] close(6) = -1 EBADF (Bad file descriptor) [pid 5022] close(7) = -1 EBADF (Bad file descriptor) [pid 5022] close(8) = -1 EBADF (Bad file descriptor) [pid 5022] close(9) = -1 EBADF (Bad file descriptor) [pid 5022] close(10) = -1 EBADF (Bad file descriptor) [pid 5022] close(11) = -1 EBADF (Bad file descriptor) [pid 5022] close(12) = -1 EBADF (Bad file descriptor) [pid 5022] close(13) = -1 EBADF (Bad file descriptor) [pid 5022] close(14) = -1 EBADF (Bad file descriptor) [pid 5022] close(15) = -1 EBADF (Bad file descriptor) [pid 5022] close(16) = -1 EBADF (Bad file descriptor) [pid 5022] close(17) = -1 EBADF (Bad file descriptor) [pid 5022] close(18) = -1 EBADF (Bad file descriptor) [pid 5022] close(19) = -1 EBADF (Bad file descriptor) [pid 5022] close(20) = -1 EBADF (Bad file descriptor) [pid 5022] close(21) = -1 EBADF (Bad file descriptor) [pid 5022] close(22) = -1 EBADF (Bad file descriptor) [pid 5022] close(23) = -1 EBADF (Bad file descriptor) [pid 5022] close(24) = -1 EBADF (Bad file descriptor) [pid 5022] close(25) = -1 EBADF (Bad file descriptor) [pid 5022] close(26) = -1 EBADF (Bad file descriptor) [pid 5022] close(27) = -1 EBADF (Bad file descriptor) [pid 5022] close(28) = -1 EBADF (Bad file descriptor) [pid 5022] close(29) = -1 EBADF (Bad file descriptor) [pid 5022] exit_group(0) = ? [pid 5022] +++ exited with 0 +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5005] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555717e650) = 14 ./strace-static-x86_64: Process 5025 attached [pid 5025] set_robust_list(0x55555717e660, 24) = 0 [pid 5025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5025] setpgid(0, 0) = 0 [pid 5025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "1000", 4) = 4 [pid 5025] close(3) = 0 [pid 5025] clone(child_stack=0x20000500, flags=CLONE_NEWIPC|CLONE_NEWNET [pid 5024] +++ killed by SIGSEGV (core dumped) +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=13, si_uid=0, si_status=SIGSEGV, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5025] <... clone resumed>) = 15 ./strace-static-x86_64: Process 5027 attached [pid 5027] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5025] close(3) = -1 EBADF (Bad file descriptor) [pid 5025] close(4) = -1 EBADF (Bad file descriptor) [pid 5025] close(5) = -1 EBADF (Bad file descriptor) [pid 5025] close(6) = -1 EBADF (Bad file descriptor) [pid 5025] close(7) = -1 EBADF (Bad file descriptor) [pid 5025] close(8) = -1 EBADF (Bad file descriptor) [pid 5025] close(9) = -1 EBADF (Bad file descriptor) [pid 5025] close(10) = -1 EBADF (Bad file descriptor) [pid 5025] close(11) = -1 EBADF (Bad file descriptor) [pid 5025] close(12) = -1 EBADF (Bad file descriptor) [pid 5025] close(13) = -1 EBADF (Bad file descriptor) [pid 5025] close(14) = -1 EBADF (Bad file descriptor) [pid 5025] close(15) = -1 EBADF (Bad file descriptor) [pid 5025] close(16) = -1 EBADF (Bad file descriptor) [pid 5025] close(17) = -1 EBADF (Bad file descriptor) [pid 5025] close(18) = -1 EBADF (Bad file descriptor) [pid 5025] close(19) = -1 EBADF (Bad file descriptor) [pid 5025] close(20) = -1 EBADF (Bad file descriptor) [pid 5025] close(21) = -1 EBADF (Bad file descriptor) [pid 5025] close(22) = -1 EBADF (Bad file descriptor) [pid 5025] close(23) = -1 EBADF (Bad file descriptor) [pid 5025] close(24) = -1 EBADF (Bad file descriptor) [pid 5025] close(25) = -1 EBADF (Bad file descriptor) [pid 5025] close(26) = -1 EBADF (Bad file descriptor) [pid 5025] close(27) = -1 EBADF (Bad file descriptor) [pid 5025] close(28) = -1 EBADF (Bad file descriptor) [pid 5025] close(29) = -1 EBADF (Bad file descriptor) [pid 5025] exit_group(0) = ? [pid 5025] +++ exited with 0 +++ [pid 5005] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5005] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5028 attached [pid 5028] set_robust_list(0x55555717e660, 24) = 0 [pid 5005] <... clone resumed>, child_tidptr=0x55555717e650) = 16 [pid 5028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5028] setpgid(0, 0) = 0 [pid 5028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5028] write(3, "1000", 4) = 4 [pid 5028] close(3) = 0 [ 140.590215][ T997] ===================================================== [ 140.597473][ T997] BUG: KMSAN: uninit-value in virtqueue_add+0x21c6/0x6530 [ 140.604736][ T997] virtqueue_add+0x21c6/0x6530 [ 140.609620][ T997] virtqueue_add_sgs+0x186/0x1a0 [ 140.614682][ T997] virtscsi_add_cmd+0x838/0xad0 [ 140.619674][ T997] virtscsi_queuecommand+0x896/0xa60 [ 140.625217][ T997] scsi_queue_rq+0x4874/0x5790 [ 140.630149][ T997] blk_mq_dispatch_rq_list+0x13f8/0x3600 [ 140.635982][ T997] __blk_mq_sched_dispatch_requests+0x10af/0x2500 [ 140.642575][ T997] blk_mq_sched_dispatch_requests+0x160/0x2d0 [ 140.648813][ T997] blk_mq_run_work_fn+0xd0/0x280 [ 140.653928][ T997] process_scheduled_works+0x104e/0x1e70 [ 140.659705][ T997] worker_thread+0xf45/0x1490 [ 140.664574][ T997] kthread+0x3ed/0x540 [ 140.668921][ T997] ret_from_fork+0x66/0x80 [ 140.673526][ T997] ret_from_fork_asm+0x11/0x20 [ 140.678476][ T997] [ 140.680871][ T997] Uninit was created at: [ 140.685341][ T997] __alloc_pages+0x9a4/0xe00 [ 140.690092][ T997] alloc_pages_mpol+0x62b/0x9d0 [ 140.695117][ T997] folio_alloc+0x1da/0x380 [ 140.699715][ T997] filemap_alloc_folio+0xa5/0x430 [ 140.704935][ T997] __filemap_get_folio+0xa5a/0x1760 [ 140.710369][ T997] ext4_da_write_begin+0x7f8/0xec0 [ 140.715666][ T997] generic_perform_write+0x3f5/0xc40 [ 140.721124][ T997] ext4_buffered_write_iter+0x564/0xaa0 [ 140.726812][ T997] ext4_file_write_iter+0x20f/0x3460 [ 140.732236][ T997] __kernel_write_iter+0x329/0x930 [ 140.737481][ T997] dump_user_range+0x593/0xcd0 [ 140.742387][ T997] elf_core_dump+0x528d/0x5a40 [ 140.747351][ T997] do_coredump+0x32c9/0x4920 [ 140.752156][ T997] get_signal+0x2185/0x2d10 [ 140.756808][ T997] arch_do_signal_or_restart+0x53/0xca0 [ 140.762499][ T997] exit_to_user_mode_loop+0xe8/0x320 [ 140.767945][ T997] exit_to_user_mode_prepare+0x163/0x220 [ 140.773733][ T997] irqentry_exit_to_user_mode+0xd/0x30 [ 140.779388][ T997] irqentry_exit+0x16/0x40 [ 140.783964][ T997] exc_page_fault+0x246/0x6f0 [ 140.788906][ T997] asm_exc_page_fault+0x2b/0x30 [ 140.793912][ T997] [ 140.796295][ T997] Bytes 0-4095 of 4096 are uninitialized [ 140.802010][ T997] Memory access of size 4096 starts at ffff88812c79c000 [ 140.809043][ T997] [ 140.811432][ T997] CPU: 0 PID: 997 Comm: kworker/0:1H Not tainted 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #0 [ 140.822238][ T997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 140.832407][ T997] Workqueue: kblockd blk_mq_run_work_fn [ 140.838139][ T997] ===================================================== [ 140.845145][ T997] Disabling lock debugging due to kernel taint [ 140.851366][ T997] Kernel panic - not syncing: kmsan.panic set ... [ 140.857868][ T997] CPU: 0 PID: 997 Comm: kworker/0:1H Tainted: G B 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #0 [ 140.869549][ T997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 140.879732][ T997] Workqueue: kblockd blk_mq_run_work_fn [ 140.885486][ T997] Call Trace: [ 140.888851][ T997] [ 140.891866][ T997] dump_stack_lvl+0x1bf/0x240 [ 140.896722][ T997] dump_stack+0x1e/0x20 [ 140.901040][ T997] panic+0x4de/0xc90 [ 140.905145][ T997] ? add_taint+0x108/0x1a0 [ 140.909715][ T997] kmsan_report+0x2d0/0x2d0 [ 140.914437][ T997] ? __blk_mq_sched_dispatch_requests+0x10af/0x2500 [ 140.921213][ T997] ? kthread+0x3ed/0x540 [ 140.925614][ T997] ? ret_from_fork+0x66/0x80 [ 140.930366][ T997] ? ret_from_fork_asm+0x11/0x20 [ 140.935460][ T997] ? kmsan_internal_check_memory+0x476/0x530 [ 140.941659][ T997] ? kmsan_handle_dma+0xac/0xc0 [ 140.946665][ T997] ? virtqueue_add+0x21c6/0x6530 [ 140.951729][ T997] ? virtqueue_add_sgs+0x186/0x1a0 [ 140.956964][ T997] ? virtscsi_add_cmd+0x838/0xad0 [ 140.962129][ T997] ? virtscsi_queuecommand+0x896/0xa60 [ 140.967732][ T997] ? scsi_queue_rq+0x4874/0x5790 [ 140.972824][ T997] ? blk_mq_dispatch_rq_list+0x13f8/0x3600 [ 140.978805][ T997] ? __blk_mq_sched_dispatch_requests+0x10af/0x2500 [ 140.985556][ T997] ? blk_mq_sched_dispatch_requests+0x160/0x2d0 [ 140.991944][ T997] ? blk_mq_run_work_fn+0xd0/0x280 [ 140.997222][ T997] ? process_scheduled_works+0x104e/0x1e70 [ 141.003176][ T997] ? worker_thread+0xf45/0x1490 [ 141.008255][ T997] ? kthread+0x3ed/0x540 [ 141.012675][ T997] ? ret_from_fork+0x66/0x80 [ 141.017523][ T997] ? ret_from_fork_asm+0x11/0x20 [ 141.022632][ T997] ? kmem_cache_alloc+0x68/0xa90 [ 141.027719][ T997] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 141.033807][ T997] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 141.039788][ T997] ? kmsan_slab_alloc+0xdd/0x150 [ 141.044880][ T997] ? slab_post_alloc_hook+0x129/0xa70 [ 141.050395][ T997] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 141.056386][ T997] kmsan_internal_check_memory+0x476/0x530 [ 141.062467][ T997] kmsan_handle_dma+0xac/0xc0 [ 141.067306][ T997] virtqueue_add+0x21c6/0x6530 [ 141.072298][ T997] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 141.078325][ T997] virtqueue_add_sgs+0x186/0x1a0 [ 141.083408][ T997] virtscsi_add_cmd+0x838/0xad0 [ 141.088490][ T997] virtscsi_queuecommand+0x896/0xa60 [ 141.093940][ T997] ? virtscsi_kick_event_all+0x3f0/0x3f0 [ 141.099723][ T997] scsi_queue_rq+0x4874/0x5790 [ 141.104660][ T997] ? scsi_complete+0x480/0x480 [ 141.109565][ T997] blk_mq_dispatch_rq_list+0x13f8/0x3600 [ 141.115398][ T997] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 141.121399][ T997] __blk_mq_sched_dispatch_requests+0x10af/0x2500 [ 141.127995][ T997] ? __blk_mq_sched_dispatch_requests+0xea1/0x2500 [ 141.134671][ T997] blk_mq_sched_dispatch_requests+0x160/0x2d0 [ 141.140894][ T997] blk_mq_run_work_fn+0xd0/0x280 [ 141.146012][ T997] ? blk_mq_alloc_and_init_hctx+0x17c0/0x17c0 [ 141.152272][ T997] process_scheduled_works+0x104e/0x1e70 [ 141.158090][ T997] worker_thread+0xf45/0x1490 [ 141.162924][ T997] kthread+0x3ed/0x540 [ 141.167169][ T997] ? pr_cont_work+0xce0/0xce0 [ 141.171997][ T997] ? kthread_blkcg+0x120/0x120 [ 141.176931][ T997] ret_from_fork+0x66/0x80 [ 141.181514][ T997] ? kthread_blkcg+0x120/0x120 [ 141.186443][ T997] ret_from_fork_asm+0x11/0x20 [ 141.191382][ T997] [ 142.573557][ T997] Shutting down cpus with NMI [ 142.578595][ T997] Kernel Offset: disabled [ 142.582970][ T997] Rebooting in 86400 seconds..