./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2399092296 <...> Warning: Permanently added '10.128.0.32' (ED25519) to the list of known hosts. execve("./syz-executor2399092296", ["./syz-executor2399092296"], 0x7fffd66713b0 /* 10 vars */) = 0 brk(NULL) = 0x5555574d3000 brk(0x5555574d3d00) = 0x5555574d3d00 arch_prctl(ARCH_SET_FS, 0x5555574d3380) = 0 set_tid_address(0x5555574d3650) = 5003 set_robust_list(0x5555574d3660, 24) = 0 rseq(0x5555574d3ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2399092296", 4096) = 28 getrandom("\xf9\x6c\x5e\xdb\x30\xab\x15\x10", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555574d3d00 brk(0x5555574f4d00) = 0x5555574f4d00 brk(0x5555574f5000) = 0x5555574f5000 mprotect(0x7f1a2a686000, 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=0x5555574d3650) = 5004 ./strace-static-x86_64: Process 5004 attached [pid 5004] set_robust_list(0x5555574d3660, 24) = 0 [pid 5004] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5004] setsid() = 1 [pid 5004] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5004] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5004] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5004] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5004] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5004] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5004] unshare(CLONE_NEWNS) = 0 [pid 5004] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5004] unshare(CLONE_NEWIPC) = 0 [pid 5004] unshare(CLONE_NEWCGROUP) = 0 [pid 5004] unshare(CLONE_NEWUTS) = 0 [pid 5004] unshare(CLONE_SYSVSEM) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "16777216", 8) = 8 [pid 5004] close(3) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "536870912", 9) = 9 [pid 5004] close(3) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "1024", 4) = 4 [pid 5004] close(3) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "8192", 4) = 4 [pid 5004] close(3) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "1024", 4) = 4 [pid 5004] close(3) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "1024", 4) = 4 [pid 5004] close(3) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5004] close(3) = 0 [pid 5004] getpid() = 1 [pid 5004] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5006] set_robust_list(0x5555574d3660, 24) = 0 [pid 5006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5004] <... clone resumed>, child_tidptr=0x5555574d3650) = 2 [pid 5006] setpgid(0, 0) = 0 [pid 5006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5006] write(3, "1000", 4) = 4 [pid 5006] close(3) = 0 [pid 5006] clone(child_stack=0x20000540, flags=CLONE_SETTLS, tls=NULL) = 3 ./strace-static-x86_64: Process 5007 attached [pid 5007] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5006] close(3) = -1 EBADF (Bad file descriptor) [pid 5006] close(4) = -1 EBADF (Bad file descriptor) [pid 5006] close(5) = -1 EBADF (Bad file descriptor) [pid 5006] close(6) = -1 EBADF (Bad file descriptor) [pid 5006] close(7) = -1 EBADF (Bad file descriptor) [pid 5006] close(8) = -1 EBADF (Bad file descriptor) [pid 5006] close(9) = -1 EBADF (Bad file descriptor) [pid 5006] close(10) = -1 EBADF (Bad file descriptor) [pid 5006] close(11) = -1 EBADF (Bad file descriptor) [pid 5006] close(12) = -1 EBADF (Bad file descriptor) [pid 5006] close(13) = -1 EBADF (Bad file descriptor) [pid 5006] close(14) = -1 EBADF (Bad file descriptor) [pid 5006] close(15) = -1 EBADF (Bad file descriptor) [pid 5006] close(16) = -1 EBADF (Bad file descriptor) [pid 5006] close(17) = -1 EBADF (Bad file descriptor) [pid 5006] close(18) = -1 EBADF (Bad file descriptor) [pid 5006] close(19) = -1 EBADF (Bad file descriptor) [pid 5006] close(20) = -1 EBADF (Bad file descriptor) [pid 5006] close(21) = -1 EBADF (Bad file descriptor) [pid 5006] close(22) = -1 EBADF (Bad file descriptor) [pid 5006] close(23) = -1 EBADF (Bad file descriptor) [pid 5006] close(24) = -1 EBADF (Bad file descriptor) [pid 5006] close(25) = -1 EBADF (Bad file descriptor) [pid 5006] close(26) = -1 EBADF (Bad file descriptor) [pid 5006] close(27) = -1 EBADF (Bad file descriptor) [pid 5006] close(28) = -1 EBADF (Bad file descriptor) [pid 5006] close(29) = -1 EBADF (Bad file descriptor) [pid 5006] exit_group(0) = ? [pid 5006] +++ exited with 0 +++ [pid 5004] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5004] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5008 attached [pid 5008] set_robust_list(0x5555574d3660, 24) = 0 [pid 5008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5008] setpgid(0, 0 [pid 5004] <... clone resumed>, child_tidptr=0x5555574d3650) = 4 [pid 5008] <... setpgid resumed>) = 0 [pid 5008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5008] write(3, "1000", 4) = 4 [pid 5008] close(3) = 0 [pid 5008] clone(child_stack=0x20000540, flags=CLONE_SETTLS./strace-static-x86_64: Process 5009 attached [pid 5007] +++ killed by SIGSEGV (core dumped) +++ [pid 5009] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5008] <... clone resumed>, tls=NULL) = 5 [pid 5008] close(3) = -1 EBADF (Bad file descriptor) [pid 5004] --- 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 */} --- [pid 5008] close(4 [pid 5004] restart_syscall(<... resuming interrupted clone ...> [pid 5008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5004] <... restart_syscall resumed>) = 0 [pid 5008] close(5) = -1 EBADF (Bad file descriptor) [pid 5008] close(6) = -1 EBADF (Bad file descriptor) [pid 5008] close(7) = -1 EBADF (Bad file descriptor) [pid 5008] close(8) = -1 EBADF (Bad file descriptor) [pid 5008] close(9) = -1 EBADF (Bad file descriptor) [pid 5008] close(10) = -1 EBADF (Bad file descriptor) [pid 5008] close(11) = -1 EBADF (Bad file descriptor) [pid 5008] close(12) = -1 EBADF (Bad file descriptor) [pid 5008] close(13) = -1 EBADF (Bad file descriptor) [pid 5008] close(14) = -1 EBADF (Bad file descriptor) [pid 5008] close(15) = -1 EBADF (Bad file descriptor) [pid 5008] close(16) = -1 EBADF (Bad file descriptor) [pid 5008] close(17) = -1 EBADF (Bad file descriptor) [pid 5008] close(18) = -1 EBADF (Bad file descriptor) [pid 5008] close(19) = -1 EBADF (Bad file descriptor) [pid 5008] close(20) = -1 EBADF (Bad file descriptor) [pid 5008] close(21) = -1 EBADF (Bad file descriptor) [pid 5008] close(22) = -1 EBADF (Bad file descriptor) [pid 5008] close(23) = -1 EBADF (Bad file descriptor) [pid 5008] close(24) = -1 EBADF (Bad file descriptor) [pid 5008] close(25) = -1 EBADF (Bad file descriptor) [pid 5008] close(26) = -1 EBADF (Bad file descriptor) [pid 5008] close(27) = -1 EBADF (Bad file descriptor) [pid 5008] close(28) = -1 EBADF (Bad file descriptor) [pid 5008] close(29) = -1 EBADF (Bad file descriptor) [pid 5008] exit_group(0) = ? [pid 5008] +++ exited with 0 +++ [pid 5004] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5004] restart_syscall(<... resuming interrupted restart_syscall ...>) = 0 [pid 5004] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555574d3650) = 6 ./strace-static-x86_64: Process 5010 attached [pid 5010] set_robust_list(0x5555574d3660, 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=0x20000540, flags=CLONE_SETTLS, tls=NULL) = 7 [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) ./strace-static-x86_64: Process 5011 attached [pid 5010] close(6 [pid 5011] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5010] close(7 [pid 5009] +++ killed by SIGSEGV (core dumped) +++ [pid 5010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5004] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=5, si_uid=0, si_status=SIGSEGV, si_utime=0, si_stime=12 /* 0.12 s */} --- [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 5004] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5004] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5004] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555574d3650) = 8 ./strace-static-x86_64: Process 5012 attached [pid 5012] set_robust_list(0x5555574d3660, 24) = 0 [pid 5012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5012] setpgid(0, 0) = 0 [pid 5012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5012] write(3, "1000", 4) = 4 [pid 5012] close(3) = 0 [pid 5012] clone(child_stack=0x20000540, flags=CLONE_SETTLS, tls=NULL) = 9 ./strace-static-x86_64: Process 5013 attached [pid 5012] close(3 [pid 5013] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5012] close(4) = -1 EBADF (Bad file descriptor) [pid 5012] close(5) = -1 EBADF (Bad file descriptor) [pid 5012] close(6) = -1 EBADF (Bad file descriptor) [pid 5012] close(7) = -1 EBADF (Bad file descriptor) [pid 5012] close(8 [pid 5011] +++ killed by SIGSEGV (core dumped) +++ [pid 5004] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=7, si_uid=0, si_status=SIGSEGV, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5004] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5012] close(9) = -1 EBADF (Bad file descriptor) [pid 5012] close(10) = -1 EBADF (Bad file descriptor) [pid 5012] close(11) = -1 EBADF (Bad file descriptor) [pid 5012] close(12) = -1 EBADF (Bad file descriptor) [pid 5012] close(13) = -1 EBADF (Bad file descriptor) [pid 5012] close(14) = -1 EBADF (Bad file descriptor) [pid 5012] close(15) = -1 EBADF (Bad file descriptor) [pid 5012] close(16) = -1 EBADF (Bad file descriptor) [pid 5012] close(17) = -1 EBADF (Bad file descriptor) [pid 5012] close(18) = -1 EBADF (Bad file descriptor) [pid 5012] close(19) = -1 EBADF (Bad file descriptor) [pid 5012] close(20) = -1 EBADF (Bad file descriptor) [pid 5012] close(21) = -1 EBADF (Bad file descriptor) [pid 5012] close(22) = -1 EBADF (Bad file descriptor) [pid 5012] close(23) = -1 EBADF (Bad file descriptor) [pid 5012] close(24) = -1 EBADF (Bad file descriptor) [pid 5012] close(25) = -1 EBADF (Bad file descriptor) [pid 5012] close(26) = -1 EBADF (Bad file descriptor) [pid 5012] close(27) = -1 EBADF (Bad file descriptor) [pid 5012] close(28) = -1 EBADF (Bad file descriptor) [pid 5012] close(29) = -1 EBADF (Bad file descriptor) [pid 5012] exit_group(0) = ? [pid 5012] +++ exited with 0 +++ [pid 5004] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5004] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555574d3650) = 10 ./strace-static-x86_64: Process 5014 attached [pid 5014] set_robust_list(0x5555574d3660, 24) = 0 [pid 5014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5014] setpgid(0, 0) = 0 [pid 5014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5014] write(3, "1000", 4) = 4 [pid 5014] close(3) = 0 [pid 5014] clone(child_stack=0x20000540, flags=CLONE_SETTLS./strace-static-x86_64: Process 5015 attached [pid 5015] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5014] <... clone resumed>, tls=NULL) = 11 [pid 5013] +++ killed by SIGSEGV (core dumped) +++ [pid 5014] close(3 [pid 5004] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=9, si_uid=0, si_status=SIGSEGV, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5014] close(4) = -1 EBADF (Bad file descriptor) [pid 5014] close(5) = -1 EBADF (Bad file descriptor) [pid 5014] close(6) = -1 EBADF (Bad file descriptor) [pid 5014] close(7) = -1 EBADF (Bad file descriptor) [pid 5014] close(8) = -1 EBADF (Bad file descriptor) [pid 5014] close(9) = -1 EBADF (Bad file descriptor) [pid 5014] close(10) = -1 EBADF (Bad file descriptor) [pid 5014] close(11) = -1 EBADF (Bad file descriptor) [pid 5014] close(12) = -1 EBADF (Bad file descriptor) [pid 5014] close(13) = -1 EBADF (Bad file descriptor) [pid 5014] close(14) = -1 EBADF (Bad file descriptor) [pid 5014] close(15) = -1 EBADF (Bad file descriptor) [pid 5014] close(16) = -1 EBADF (Bad file descriptor) [pid 5014] close(17) = -1 EBADF (Bad file descriptor) [pid 5014] close(18) = -1 EBADF (Bad file descriptor) [pid 5014] close(19) = -1 EBADF (Bad file descriptor) [pid 5014] close(20) = -1 EBADF (Bad file descriptor) [pid 5014] close(21) = -1 EBADF (Bad file descriptor) [pid 5014] close(22) = -1 EBADF (Bad file descriptor) [pid 5014] close(23) = -1 EBADF (Bad file descriptor) [pid 5014] close(24) = -1 EBADF (Bad file descriptor) [pid 5014] close(25) = -1 EBADF (Bad file descriptor) [pid 5014] close(26) = -1 EBADF (Bad file descriptor) [pid 5014] close(27) = -1 EBADF (Bad file descriptor) [pid 5014] close(28) = -1 EBADF (Bad file descriptor) [pid 5014] close(29) = -1 EBADF (Bad file descriptor) [pid 5014] exit_group(0) = ? [pid 5014] +++ exited with 0 +++ [pid 5004] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5004] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5016 attached , child_tidptr=0x5555574d3650) = 12 [pid 5016] set_robust_list(0x5555574d3660, 24) = 0 [pid 5016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5016] setpgid(0, 0) = 0 [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=0x20000540, flags=CLONE_SETTLS, tls=NULL) = 13 [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./strace-static-x86_64: Process 5017 attached ) = -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 5017] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [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 5004] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5004] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5015] +++ killed by SIGSEGV +++ [pid 5004] <... clone resumed>, child_tidptr=0x5555574d3650) = 14 [pid 5004] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=11, si_uid=0, si_status=SIGSEGV, si_utime=0, si_stime=4 /* 0.04 s */} --- ./strace-static-x86_64: Process 5018 attached [pid 5018] set_robust_list(0x5555574d3660, 24) = 0 [pid 5018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5018] setpgid(0, 0) = 0 [pid 5018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5018] write(3, "1000", 4) = 4 [pid 5018] close(3) = 0 [pid 5018] clone(child_stack=0x20000540, flags=CLONE_SETTLS, tls=NULL) = 15 ./strace-static-x86_64: Process 5019 attached [pid 5018] close(3) = -1 EBADF (Bad file descriptor) [pid 5018] close(4) = -1 EBADF (Bad file descriptor) [pid 5018] close(5) = -1 EBADF (Bad file descriptor) [pid 5018] close(6) = -1 EBADF (Bad file descriptor) [pid 5018] close(7) = -1 EBADF (Bad file descriptor) [pid 5018] close(8) = -1 EBADF (Bad file descriptor) [pid 5018] close(9) = -1 EBADF (Bad file descriptor) [pid 5018] close(10) = -1 EBADF (Bad file descriptor) [pid 5018] close(11) = -1 EBADF (Bad file descriptor) [pid 5018] close(12) = -1 EBADF (Bad file descriptor) [pid 5018] close(13) = -1 EBADF (Bad file descriptor) [pid 5018] close(14) = -1 EBADF (Bad file descriptor) [pid 5018] close(15) = -1 EBADF (Bad file descriptor) [pid 5018] close(16) = -1 EBADF (Bad file descriptor) [pid 5018] close(17) = -1 EBADF (Bad file descriptor) [pid 5018] close(18) = -1 EBADF (Bad file descriptor) [pid 5018] close(19) = -1 EBADF (Bad file descriptor) [pid 5018] close(20) = -1 EBADF (Bad file descriptor) [pid 5018] close(21) = -1 EBADF (Bad file descriptor) [pid 5018] close(22) = -1 EBADF (Bad file descriptor) [pid 5018] close(23 [pid 5019] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5018] close(24) = -1 EBADF (Bad file descriptor) [pid 5018] close(25) = -1 EBADF (Bad file descriptor) [pid 5018] close(26) = -1 EBADF (Bad file descriptor) [pid 5018] close(27) = -1 EBADF (Bad file descriptor) [pid 5018] close(28) = -1 EBADF (Bad file descriptor) [pid 5018] close(29) = -1 EBADF (Bad file descriptor) [pid 5018] exit_group(0) = ? [ 139.791666][ T23] ===================================================== [ 139.798928][ T23] BUG: KMSAN: uninit-value in virtqueue_add+0x21c6/0x6530 [ 139.806198][ T23] virtqueue_add+0x21c6/0x6530 [ 139.811214][ T23] virtqueue_add_sgs+0x186/0x1a0 [ 139.816368][ T23] virtscsi_add_cmd+0x838/0xad0 [ 139.821395][ T23] virtscsi_queuecommand+0x896/0xa60 [ 139.826861][ T23] scsi_queue_rq+0x4874/0x5790 [ 139.831794][ T23] blk_mq_dispatch_rq_list+0x13f8/0x3600 [pid 5018] +++ exited with 0 +++ [pid 5004] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5004] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5020 attached [pid 5020] set_robust_list(0x5555574d3660, 24) = 0 [pid 5020] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5004] <... clone resumed>, child_tidptr=0x5555574d3650) = 16 [pid 5020] <... prctl resumed>) = 0 [ 139.837620][ T23] __blk_mq_sched_dispatch_requests+0x10af/0x2500 [ 139.844217][ T23] blk_mq_sched_dispatch_requests+0x160/0x2d0 [ 139.850463][ T23] blk_mq_run_work_fn+0xd0/0x280 [ 139.855600][ T23] process_scheduled_works+0x104e/0x1e70 [ 139.861411][ T23] worker_thread+0xf45/0x1490 [ 139.866243][ T23] kthread+0x3ed/0x540 [ 139.870494][ T23] ret_from_fork+0x66/0x80 [ 139.875178][ T23] ret_from_fork_asm+0x11/0x20 [ 139.880110][ T23] [ 139.882497][ T23] Uninit was created at: [ 139.887026][ T23] __alloc_pages+0x9a4/0xe00 [ 139.891777][ T23] alloc_pages_mpol+0x62b/0x9d0 [ 139.896774][ T23] folio_alloc+0x1da/0x380 [ 139.901329][ T23] filemap_alloc_folio+0xa5/0x430 [ 139.906507][ T23] __filemap_get_folio+0xa5a/0x1760 [ 139.911866][ T23] ext4_da_write_begin+0x7f8/0xec0 [ 139.917136][ T23] generic_perform_write+0x3f5/0xc40 [ 139.922585][ T23] ext4_buffered_write_iter+0x564/0xaa0 [ 139.928261][ T23] ext4_file_write_iter+0x20f/0x3460 [ 139.933761][ T23] __kernel_write_iter+0x329/0x930 [ 139.938998][ T23] dump_user_range+0x593/0xcd0 [ 139.946167][ T23] elf_core_dump+0x528d/0x5a40 [ 139.951126][ T23] do_coredump+0x32c9/0x4920 [ 139.955842][ T23] get_signal+0x2185/0x2d10 [ 139.960503][ T23] arch_do_signal_or_restart+0x53/0xca0 [ 139.966195][ T23] exit_to_user_mode_loop+0xe8/0x320 [ 139.971638][ T23] exit_to_user_mode_prepare+0x163/0x220 [ 139.977425][ T23] irqentry_exit_to_user_mode+0xd/0x30 [ 139.983085][ T23] irqentry_exit+0x16/0x40 [ 139.987663][ T23] exc_page_fault+0x246/0x6f0 [ 139.992504][ T23] asm_exc_page_fault+0x2b/0x30 [ 139.997508][ T23] [ 139.999896][ T23] Bytes 0-4095 of 4096 are uninitialized [ 140.005613][ T23] Memory access of size 4096 starts at ffff888124d91000 [ 140.012638][ T23] [ 140.015030][ T23] CPU: 1 PID: 23 Comm: kworker/1:0H Not tainted 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #0 [ 140.025166][ T23] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 140.035359][ T23] Workqueue: kblockd blk_mq_run_work_fn [ 140.041104][ T23] ===================================================== [ 140.048112][ T23] Disabling lock debugging due to kernel taint [ 140.054336][ T23] Kernel panic - not syncing: kmsan.panic set ... [ 140.060832][ T23] CPU: 1 PID: 23 Comm: kworker/1:0H Tainted: G B 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #0 [ 140.072435][ T23] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 140.082614][ T23] Workqueue: kblockd blk_mq_run_work_fn [ 140.088343][ T23] Call Trace: [ 140.091707][ T23] [ 140.094722][ T23] dump_stack_lvl+0x1bf/0x240 [ 140.099569][ T23] dump_stack+0x1e/0x20 [ 140.103870][ T23] panic+0x4de/0xc90 [ 140.107963][ T23] ? add_taint+0x108/0x1a0 [ 140.112525][ T23] kmsan_report+0x2d0/0x2d0 [ 140.117205][ T23] ? kmsan_internal_check_memory+0x476/0x530 [ 140.123351][ T23] ? kmsan_handle_dma+0xac/0xc0 [ 140.128362][ T23] ? virtqueue_add+0x21c6/0x6530 [ 140.133436][ T23] ? virtqueue_add_sgs+0x186/0x1a0 [ 140.138703][ T23] ? virtscsi_add_cmd+0x838/0xad0 [ 140.143881][ T23] ? virtscsi_queuecommand+0x896/0xa60 [ 140.149583][ T23] ? scsi_queue_rq+0x4874/0x5790 [ 140.154670][ T23] ? blk_mq_dispatch_rq_list+0x13f8/0x3600 [ 140.160654][ T23] ? __blk_mq_sched_dispatch_requests+0x10af/0x2500 [ 140.167402][ T23] ? blk_mq_sched_dispatch_requests+0x160/0x2d0 [ 140.173794][ T23] ? blk_mq_run_work_fn+0xd0/0x280 [ 140.179088][ T23] ? process_scheduled_works+0x104e/0x1e70 [ 140.185045][ T23] ? worker_thread+0xf45/0x1490 [ 140.190032][ T23] ? kthread+0x3ed/0x540 [ 140.194428][ T23] ? ret_from_fork+0x66/0x80 [ 140.199186][ T23] ? ret_from_fork_asm+0x11/0x20 [ 140.204305][ T23] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 140.210294][ T23] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 140.216286][ T23] ? iowrite16+0x38/0x1d0 [ 140.220774][ T23] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 140.226757][ T23] ? iowrite16+0x38/0x1d0 [ 140.231246][ T23] kmsan_internal_check_memory+0x476/0x530 [ 140.237235][ T23] kmsan_handle_dma+0xac/0xc0 [ 140.242084][ T23] virtqueue_add+0x21c6/0x6530 [ 140.246982][ T23] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 140.253017][ T23] virtqueue_add_sgs+0x186/0x1a0 [ 140.258117][ T23] virtscsi_add_cmd+0x838/0xad0 [ 140.263156][ T23] virtscsi_queuecommand+0x896/0xa60 [ 140.268633][ T23] ? virtscsi_kick_event_all+0x3f0/0x3f0 [ 140.274420][ T23] scsi_queue_rq+0x4874/0x5790 [ 140.279357][ T23] ? scsi_complete+0x480/0x480 [ 140.284263][ T23] blk_mq_dispatch_rq_list+0x13f8/0x3600 [ 140.290100][ T23] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 140.296125][ T23] __blk_mq_sched_dispatch_requests+0x10af/0x2500 [ 140.302718][ T23] ? __blk_mq_sched_dispatch_requests+0xea1/0x2500 [ 140.309419][ T23] blk_mq_sched_dispatch_requests+0x160/0x2d0 [ 140.315692][ T23] blk_mq_run_work_fn+0xd0/0x280 [ 140.320823][ T23] ? blk_mq_alloc_and_init_hctx+0x17c0/0x17c0 [ 140.327083][ T23] process_scheduled_works+0x104e/0x1e70 [ 140.332922][ T23] worker_thread+0xf45/0x1490 [ 140.337763][ T23] kthread+0x3ed/0x540 [ 140.342000][ T23] ? pr_cont_work+0xce0/0xce0 [ 140.346813][ T23] ? kthread_blkcg+0x120/0x120 [ 140.351934][ T23] ret_from_fork+0x66/0x80 [ 140.356511][ T23] ? kthread_blkcg+0x120/0x120 [ 140.361443][ T23] ret_from_fork_asm+0x11/0x20 [ 140.366375][ T23] [ 141.753923][ T23] Shutting down cpus with NMI [ 141.758957][ T23] Kernel Offset: disabled [ 141.763355][ T23] Rebooting in 86400 seconds..