./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4130908393 <...> Warning: Permanently added '10.128.0.231' (ED25519) to the list of known hosts. execve("./syz-executor4130908393", ["./syz-executor4130908393"], 0x7ffe8cd02db0 /* 10 vars */) = 0 brk(NULL) = 0x555564676000 brk(0x555564676d00) = 0x555564676d00 arch_prctl(ARCH_SET_FS, 0x555564676380) = 0 set_tid_address(0x555564676650) = 5079 set_robust_list(0x555564676660, 24) = 0 rseq(0x555564676ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4130908393", 4096) = 28 getrandom("\xfa\x03\x78\x67\x6e\x14\x12\x8a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555564676d00 brk(0x555564697d00) = 0x555564697d00 brk(0x555564698000) = 0x555564698000 mprotect(0x7f1bd18e5000, 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./strace-static-x86_64: Process 5080 attached , child_tidptr=0x555564676650) = 5080 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] set_robust_list(0x555564676660, 24) = 0 [pid 5080] mkdir("./syzkaller.JqJtBf", 0700./strace-static-x86_64: Process 5081 attached [pid 5079] <... clone resumed>, child_tidptr=0x555564676650) = 5081 [pid 5081] set_robust_list(0x555564676660, 24 [pid 5080] <... mkdir resumed>) = 0 [pid 5080] chmod("./syzkaller.JqJtBf", 0777) = 0 [pid 5080] chdir("./syzkaller.JqJtBf" [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... set_robust_list resumed>) = 0 [pid 5081] mkdir("./syzkaller.nYB1Bn", 0700 [pid 5080] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5082 attached [pid 5080] mkdir("./0", 0777 [pid 5082] set_robust_list(0x555564676660, 24 [pid 5079] <... clone resumed>, child_tidptr=0x555564676650) = 5082 [pid 5082] <... set_robust_list resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] mkdir("./syzkaller.z1jMUn", 0700 [pid 5080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ./strace-static-x86_64: Process 5083 attached [pid 5082] <... mkdir resumed>) = 0 [pid 5081] chmod("./syzkaller.nYB1Bn", 0777 [pid 5083] set_robust_list(0x555564676660, 24 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5079] <... clone resumed>, child_tidptr=0x555564676650) = 5083 [pid 5083] <... set_robust_list resumed>) = 0 [pid 5082] chmod("./syzkaller.z1jMUn", 0777 [pid 5080] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] mkdir("./syzkaller.EiM6oT", 0700 [pid 5081] <... chmod resumed>) = 0 [pid 5080] close(3./strace-static-x86_64: Process 5084 attached [pid 5083] <... mkdir resumed>) = 0 [pid 5082] <... chmod resumed>) = 0 [pid 5081] chdir("./syzkaller.nYB1Bn" [pid 5080] <... close resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555564676650) = 5084 [pid 5083] chmod("./syzkaller.EiM6oT", 0777 [pid 5081] <... chdir resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] <... chmod resumed>) = 0 [pid 5084] set_robust_list(0x555564676660, 24 [pid 5082] chdir("./syzkaller.z1jMUn" [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5084] <... set_robust_list resumed>) = 0 [pid 5082] <... chdir resumed>) = 0 [pid 5081] mkdir("./0", 0777 [pid 5083] chdir("./syzkaller.EiM6oT") = 0 [pid 5083] mkdir("./0", 0777 [pid 5082] mkdir("./0", 0777 [pid 5084] mkdir("./syzkaller.WZ1zBY", 0700 [pid 5083] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5086 attached ./strace-static-x86_64: Process 5085 attached [pid 5084] <... mkdir resumed>) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x555564676650) = 5085 [pid 5085] set_robust_list(0x555564676660, 24 [pid 5080] <... clone resumed>, child_tidptr=0x555564676650) = 5086 [pid 5086] set_robust_list(0x555564676660, 24 [pid 5085] <... set_robust_list resumed>) = 0 [pid 5084] chmod("./syzkaller.WZ1zBY", 0777 [pid 5083] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5086] <... set_robust_list resumed>) = 0 [pid 5085] mkdir("./syzkaller.gHlXlK", 0700 [pid 5084] <... chmod resumed>) = 0 [pid 5083] <... openat resumed>) = 3 [pid 5086] chdir("./0" [pid 5084] chdir("./syzkaller.WZ1zBY" [pid 5086] <... chdir resumed>) = 0 [pid 5084] <... chdir resumed>) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5084] mkdir("./0", 0777 [pid 5086] <... prctl resumed>) = 0 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5082] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5081] <... openat resumed>) = 3 [pid 5086] setpgid(0, 0 [pid 5085] <... mkdir resumed>) = 0 [pid 5084] <... mkdir resumed>) = 0 [pid 5083] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5082] <... openat resumed>) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5086] <... setpgid resumed>) = 0 [pid 5083] close(3 [pid 5081] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... close resumed>) = 0 [pid 5081] close(3 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5081] <... close resumed>) = 0 [pid 5085] chmod("./syzkaller.gHlXlK", 0777 [pid 5084] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5086] <... openat resumed>) = 3 [pid 5085] <... chmod resumed>) = 0 [pid 5084] <... openat resumed>) = 3 [pid 5082] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5085] chdir("./syzkaller.gHlXlK" [pid 5084] ioctl(3, LOOP_CLR_FD [pid 5085] <... chdir resumed>) = 0 [pid 5084] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5086] write(3, "1000", 4) = 4 [pid 5086] close(3) = 0 [pid 5086] symlink("/dev/binderfs", "./binderfs" [pid 5085] mkdir("./0", 0777 [pid 5084] close(3 [pid 5086] <... symlink resumed>) = 0 [pid 5084] <... close resumed>) = 0 [pid 5084] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5087 attached ./strace-static-x86_64: Process 5088 attached [pid 5086] memfd_create("syzkaller", 0 [pid 5085] <... mkdir resumed>) = 0 [pid 5082] close(3 [pid 5087] set_robust_list(0x555564676660, 24 [pid 5088] set_robust_list(0x555564676660, 24 [pid 5086] <... memfd_create resumed>) = 3 [pid 5085] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5083] <... clone resumed>, child_tidptr=0x555564676650) = 5087 [pid 5082] <... close resumed>) = 0 [pid 5087] <... set_robust_list resumed>) = 0 [pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5085] <... openat resumed>) = 3 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] chdir("./0" [pid 5086] <... mmap resumed>) = 0x7f1bc9400000 [pid 5087] <... chdir resumed>) = 0 [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5087] setpgid(0, 0) = 0 [pid 5088] <... set_robust_list resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x555564676650) = 5088 [pid 5084] <... clone resumed>, child_tidptr=0x555564676650) = 5090 [pid 5088] chdir("./0" [pid 5085] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5090 attached [pid 5088] <... chdir resumed>) = 0 [pid 5090] set_robust_list(0x555564676660, 24 [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5090] <... set_robust_list resumed>) = 0 [pid 5088] <... prctl resumed>) = 0 [pid 5085] close(3 [pid 5090] chdir("./0" [pid 5088] setpgid(0, 0 [pid 5085] <... close resumed>) = 0 [pid 5090] <... chdir resumed>) = 0 [pid 5088] <... setpgid resumed>) = 0 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5090] setpgid(0, 0 [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5085] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] <... setpgid resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] <... openat resumed>) = 3 [pid 5082] <... clone resumed>, child_tidptr=0x555564676650) = 5089 ./strace-static-x86_64: Process 5089 attached [pid 5087] write(3, "1000", 4 [pid 5088] <... openat resumed>) = 3 [pid 5089] set_robust_list(0x555564676660, 24 [pid 5087] <... write resumed>) = 4 [pid 5085] <... clone resumed>, child_tidptr=0x555564676650) = 5091 [pid 5090] <... openat resumed>) = 3 [pid 5088] write(3, "1000", 4 [pid 5089] <... set_robust_list resumed>) = 0 [pid 5087] close(3 [pid 5088] <... write resumed>) = 4 [pid 5089] chdir("./0" [pid 5090] write(3, "1000", 4 [pid 5087] <... close resumed>) = 0 [pid 5088] close(3 [pid 5089] <... chdir resumed>) = 0 [pid 5087] symlink("/dev/binderfs", "./binderfs" [pid 5088] <... close resumed>) = 0 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] <... write resumed>) = 4 [pid 5087] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5091 attached [pid 5089] <... prctl resumed>) = 0 [pid 5091] set_robust_list(0x555564676660, 24 [pid 5089] setpgid(0, 0 [pid 5090] close(3 [pid 5088] symlink("/dev/binderfs", "./binderfs" [pid 5091] <... set_robust_list resumed>) = 0 [pid 5089] <... setpgid resumed>) = 0 [pid 5090] <... close resumed>) = 0 [pid 5091] chdir("./0" [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] symlink("/dev/binderfs", "./binderfs" [pid 5088] <... symlink resumed>) = 0 [pid 5091] <... chdir resumed>) = 0 [pid 5089] <... openat resumed>) = 3 [pid 5087] memfd_create("syzkaller", 0 [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5089] write(3, "1000", 4 [pid 5091] setpgid(0, 0 [pid 5089] <... write resumed>) = 4 [pid 5087] <... memfd_create resumed>) = 3 [pid 5091] <... setpgid resumed>) = 0 [pid 5089] close(3 [pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] <... symlink resumed>) = 0 [pid 5088] memfd_create("syzkaller", 0 [pid 5091] <... openat resumed>) = 3 [pid 5090] memfd_create("syzkaller", 0 [pid 5088] <... memfd_create resumed>) = 3 [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5091] write(3, "1000", 4) = 4 [pid 5091] close(3 [pid 5088] <... mmap resumed>) = 0x7f1bc9400000 [pid 5091] <... close resumed>) = 0 [pid 5089] <... close resumed>) = 0 [pid 5087] <... mmap resumed>) = 0x7f1bc9400000 [pid 5090] <... memfd_create resumed>) = 3 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5091] symlink("/dev/binderfs", "./binderfs" [pid 5089] symlink("/dev/binderfs", "./binderfs" [pid 5091] <... symlink resumed>) = 0 [pid 5089] <... symlink resumed>) = 0 [pid 5090] <... mmap resumed>) = 0x7f1bc9400000 [pid 5091] memfd_create("syzkaller", 0 [pid 5089] memfd_create("syzkaller", 0) = 3 [pid 5091] <... memfd_create resumed>) = 3 [pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5091] <... mmap resumed>) = 0x7f1bc9400000 [pid 5089] <... mmap resumed>) = 0x7f1bc9400000 [pid 5086] 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"..., 16777216 [pid 5088] 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"..., 16777216 [pid 5090] 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"..., 16777216 [pid 5087] 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"..., 16777216 [pid 5089] 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"..., 16777216 [pid 5091] 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"..., 16777216 [pid 5086] <... write resumed>) = 16777216 [pid 5091] <... write resumed>) = 16777216 [pid 5091] munmap(0x7f1bc9400000, 138412032 [pid 5088] <... write resumed>) = 16777216 [pid 5086] munmap(0x7f1bc9400000, 138412032 [pid 5088] munmap(0x7f1bc9400000, 138412032 [pid 5091] <... munmap resumed>) = 0 [pid 5091] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5090] <... write resumed>) = 16777216 [pid 5091] ioctl(4, LOOP_SET_FD, 3 [pid 5087] <... write resumed>) = 16777216 [pid 5087] munmap(0x7f1bc9400000, 138412032 [pid 5090] munmap(0x7f1bc9400000, 138412032 [pid 5091] <... ioctl resumed>) = 0 [pid 5091] close(3) = 0 [pid 5091] close(4) = 0 [pid 5091] mkdir("./bus", 0777 [pid 5086] <... munmap resumed>) = 0 [pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 111.645085][ T5091] loop5: detected capacity change from 0 to 32768 [pid 5086] ioctl(4, LOOP_SET_FD, 3 [pid 5091] <... mkdir resumed>) = 0 [pid 5088] <... munmap resumed>) = 0 [pid 5091] mount("/dev/loop5", "./bus", "jfs", MS_I_VERSION, "errors=remount-ro,iocharset=iso8859-15,nointegrity,quota,errors=continue,errors=remount-ro,usrquota" [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5088] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5087] <... munmap resumed>) = 0 [pid 5086] <... ioctl resumed>) = 0 [pid 5090] <... munmap resumed>) = 0 [pid 5086] close(3 [pid 5090] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5086] <... close resumed>) = 0 [pid 5090] <... openat resumed>) = 4 [ 111.689656][ T5086] loop0: detected capacity change from 0 to 32768 [ 111.705995][ T5088] loop1: detected capacity change from 0 to 32768 [pid 5090] ioctl(4, LOOP_SET_FD, 3 [pid 5089] <... write resumed>) = 16777216 [pid 5086] close(4) = 0 [pid 5086] mkdir("./bus", 0777 [pid 5087] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5086] <... mkdir resumed>) = 0 [pid 5087] <... openat resumed>) = 4 [pid 5086] mount("/dev/loop0", "./bus", "jfs", MS_I_VERSION, "errors=remount-ro,iocharset=iso8859-15,nointegrity,quota,errors=continue,errors=remount-ro,usrquota" [pid 5087] ioctl(4, LOOP_SET_FD, 3 [pid 5088] close(3) = 0 [pid 5088] close(4) = 0 [pid 5088] mkdir("./bus", 0777) = 0 [pid 5088] mount("/dev/loop1", "./bus", "jfs", MS_I_VERSION, "errors=remount-ro,iocharset=iso8859-15,nointegrity,quota,errors=continue,errors=remount-ro,usrquota" [pid 5089] munmap(0x7f1bc9400000, 138412032 [pid 5087] <... ioctl resumed>) = 0 [pid 5087] close(3 [pid 5091] <... mount resumed>) = 0 [pid 5087] <... close resumed>) = 0 [pid 5090] <... ioctl resumed>) = 0 [pid 5087] close(4 [pid 5090] close(3) = 0 [pid 5087] <... close resumed>) = 0 [pid 5091] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5090] close(4 [pid 5091] <... openat resumed>) = 3 [pid 5090] <... close resumed>) = 0 [pid 5087] mkdir("./bus", 0777 [pid 5091] chdir("./bus" [pid 5090] mkdir("./bus", 0777 [pid 5091] <... chdir resumed>) = 0 [pid 5090] <... mkdir resumed>) = 0 [pid 5087] <... mkdir resumed>) = 0 [pid 5091] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5090] mount("/dev/loop4", "./bus", "jfs", MS_I_VERSION, "errors=remount-ro,iocharset=iso8859-15,nointegrity,quota,errors=continue,errors=remount-ro,usrquota" [pid 5091] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5087] mount("/dev/loop3", "./bus", "jfs", MS_I_VERSION, "errors=remount-ro,iocharset=iso8859-15,nointegrity,quota,errors=continue,errors=remount-ro,usrquota" [pid 5091] exit_group(0) = ? [ 111.732319][ T5090] loop4: detected capacity change from 0 to 32768 [ 111.752067][ T5087] loop3: detected capacity change from 0 to 32768 [pid 5086] <... mount resumed>) = 0 [pid 5086] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5087] <... mount resumed>) = 0 [pid 5091] +++ exited with 0 +++ [pid 5087] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5086] chdir("./bus" [pid 5087] <... openat resumed>) = 3 [pid 5087] chdir("./bus" [pid 5086] <... chdir resumed>) = 0 [pid 5085] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=43 /* 0.43 s */} --- [pid 5087] <... chdir resumed>) = 0 [pid 5088] <... mount resumed>) = 0 [pid 5085] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5090] <... mount resumed>) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5085] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5090] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5088] <... openat resumed>) = 3 [pid 5085] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5090] <... openat resumed>) = 3 [pid 5088] chdir("./bus" [pid 5085] <... openat resumed>) = 3 [pid 5090] chdir("./bus" [pid 5088] <... chdir resumed>) = 0 [pid 5086] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5085] newfstatat(3, "", [pid 5090] <... chdir resumed>) = 0 [pid 5087] exit_group(0 [pid 5088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5086] exit_group(0 [pid 5085] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5087] <... exit_group resumed>) = ? [pid 5088] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5086] <... exit_group resumed>) = ? [pid 5085] getdents64(3, [pid 5087] +++ exited with 0 +++ [pid 5086] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=42 /* 0.42 s */} --- [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=47 /* 0.47 s */} --- [pid 5080] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5090] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5088] exit_group(0 [pid 5085] <... getdents64 resumed>0x5555646776f0 /* 4 entries */, 32768) = 104 [pid 5090] exit_group(0 [pid 5085] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5090] <... exit_group resumed>) = ? [pid 5090] +++ exited with 0 +++ [pid 5083] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5088] <... exit_group resumed>) = ? [pid 5084] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=38 /* 0.38 s */} --- [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5088] +++ exited with 0 +++ [pid 5083] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5083] <... openat resumed>) = 3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=41 /* 0.41 s */} --- [pid 5080] <... openat resumed>) = 3 [pid 5084] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5083] newfstatat(3, "", [pid 5081] restart_syscall(<... resuming interrupted clone ...> [pid 5080] newfstatat(3, "", [pid 5089] <... munmap resumed>) = 0 [pid 5084] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] <... restart_syscall resumed>) = 0 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5084] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5083] getdents64(3, [pid 5080] getdents64(3, [pid 5084] <... openat resumed>) = 3 [pid 5084] newfstatat(3, "", [pid 5083] <... getdents64 resumed>0x5555646776f0 /* 4 entries */, 32768) = 104 [pid 5080] <... getdents64 resumed>0x5555646776f0 /* 4 entries */, 32768) = 104 [pid 5084] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5084] getdents64(3, [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5084] <... getdents64 resumed>0x5555646776f0 /* 4 entries */, 32768) = 104 [pid 5081] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5084] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... openat resumed>) = 3 [pid 5081] newfstatat(3, "", [pid 5089] <... openat resumed>) = 4 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5089] ioctl(4, LOOP_SET_FD, 3 [pid 5081] getdents64(3, 0x5555646776f0 /* 4 entries */, 32768) = 104 [ 111.896827][ T5089] loop2: detected capacity change from 0 to 32768 [ 111.905804][ T5081] general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 111.918104][ T5081] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 111.926560][ T5081] CPU: 0 PID: 5081 Comm: syz-executor413 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 111.936691][ T5081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 111.946772][ T5081] RIP: 0010:write_special_inodes+0xa9/0x170 [ 111.952735][ T5081] Code: 2e e8 6b 04 ce 07 48 8d 7b 28 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 b1 00 00 00 4c 8b 6b 28 49 8d 7d 30 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 8e 00 00 00 49 8b 7d 30 2e e8 33 04 ce 07 48 8d [ 111.972386][ T5081] RSP: 0018:ffffc900043f7bb8 EFLAGS: 00010216 [ 111.978485][ T5081] RAX: 0000000000000006 RBX: ffff88802376de00 RCX: ffffffff81bf2e0e [ 111.986484][ T5081] RDX: 0000000000000000 RSI: ffffffff81bf2dc1 RDI: 0000000000000030 [ 111.994479][ T5081] RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 [ 112.002474][ T5081] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff81bfefc0 [ 112.010471][ T5081] R13: 0000000000000000 R14: ffff88807fe7e800 R15: ffff88801f50f8c0 [ 112.018477][ T5081] FS: 0000555564676380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 112.027465][ T5081] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 112.034075][ T5081] CR2: 00007ffe13963c38 CR3: 000000007895a000 CR4: 0000000000350ef0 [ 112.042102][ T5081] Call Trace: [ 112.045398][ T5081] [ 112.048345][ T5081] ? show_regs+0x8c/0xa0 [ 112.052736][ T5081] ? die_addr+0x4f/0xd0 [ 112.056954][ T5081] ? exc_general_protection+0x155/0x230 [ 112.062564][ T5081] ? asm_exc_general_protection+0x26/0x30 [ 112.068377][ T5081] ? __pfx_filemap_flush+0x10/0x10 [ 112.073530][ T5081] ? filemap_fdatawrite_wbc+0xce/0x1c0 [ 112.079164][ T5081] ? filemap_fdatawrite_wbc+0x81/0x1c0 [ 112.084683][ T5081] ? write_special_inodes+0xa9/0x170 [ 112.090013][ T5081] ? write_special_inodes+0x85/0x170 [ 112.095343][ T5081] lmLogSync+0x4a0/0x820 [ 112.099633][ T5081] ? __pfx_lmLogSync+0x10/0x10 [ 112.104443][ T5081] ? __pfx_dquot_writeback_dquots+0x10/0x10 [ 112.110399][ T5081] jfs_syncpt+0x89/0xa0 [ 112.114597][ T5081] jfs_sync_fs+0x83/0xb0 [ 112.118893][ T5081] ? __pfx_jfs_sync_fs+0x10/0x10 [ 112.123908][ T5081] sync_filesystem+0x110/0x290 [ 112.128893][ T5081] generic_shutdown_super+0x7e/0x3d0 [ 112.134225][ T5081] kill_block_super+0x3b/0x90 [ 112.138966][ T5081] deactivate_locked_super+0xc1/0x1a0 [ 112.144415][ T5081] deactivate_super+0xde/0x100 [ 112.149237][ T5081] cleanup_mnt+0x222/0x450 [ 112.153693][ T5081] task_work_run+0x151/0x250 [ 112.158331][ T5081] ? __pfx_task_work_run+0x10/0x10 [ 112.163491][ T5081] ptrace_notify+0x10e/0x130 [ 112.168138][ T5081] syscall_exit_to_user_mode_prepare+0x126/0x240 [ 112.174552][ T5081] syscall_exit_to_user_mode+0x11/0x2a0 [ 112.180166][ T5081] do_syscall_64+0xe2/0x260 [ 112.184751][ T5081] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 112.190707][ T5081] RIP: 0033:0x7f1bd186c6b7 [ 112.195144][ T5081] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 112.214886][ T5081] RSP: 002b:00007ffe139643e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 112.223336][ T5081] RAX: 0000000000000000 RBX: 000000000001ae29 RCX: 00007f1bd186c6b7 [ 112.231334][ T5081] RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffe139644a0 [ 112.239330][ T5081] RBP: 00007ffe139644a0 R08: 0000000000000000 R09: 0000000000000000 [pid 5081] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5089] <... ioctl resumed>) = 0 [pid 5083] <... umount2 resumed>) = 0 [pid 5089] close(3 [pid 5083] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5089] <... close resumed>) = 0 [pid 5089] close(4 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5089] <... close resumed>) = 0 [pid 5083] newfstatat(AT_FDCWD, "./0/bus", [pid 5089] mkdir("./bus", 0777 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5089] <... mkdir resumed>) = 0 [pid 5083] umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5089] mount("/dev/loop2", "./bus", "jfs", MS_I_VERSION, "errors=remount-ro,iocharset=iso8859-15,nointegrity,quota,errors=continue,errors=remount-ro,usrquota" [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55556467f730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55556467f730 /* 0 entries */, 32768) = 0 [ 112.247329][ T5081] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffe13965510 [ 112.255325][ T5081] R13: 00005555646776c0 R14: 431bde82d7b634db R15: 00007ffe13965530 [ 112.263335][ T5081] [ 112.266369][ T5081] Modules linked in: [ 112.286458][ T5081] ---[ end trace 0000000000000000 ]--- [ 112.291991][ T5081] RIP: 0010:write_special_inodes+0xa9/0x170 [pid 5083] close(4) = 0 [pid 5083] rmdir("./0/bus") = 0 [pid 5083] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./0/binderfs") = 0 [pid 5083] getdents64(3, 0x5555646776f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./0") = 0 [pid 5083] mkdir("./1", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD) = 0 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555564676650) = 5095 ./strace-static-x86_64: Process 5095 attached [pid 5095] set_robust_list(0x555564676660, 24) = 0 [pid 5095] chdir("./1") = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5095] setpgid(0, 0) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5095] write(3, "1000", 4) = 4 [pid 5095] close(3) = 0 [pid 5095] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5095] memfd_create("syzkaller", 0) = 3 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1bc9400000 [ 112.351723][ T5081] Code: 2e e8 6b 04 ce 07 48 8d 7b 28 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 b1 00 00 00 4c 8b 6b 28 49 8d 7d 30 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 8e 00 00 00 49 8b 7d 30 2e e8 33 04 ce 07 48 8d [ 112.374794][ T5081] RSP: 0018:ffffc900043f7bb8 EFLAGS: 00010216 [ 112.416197][ T5081] RAX: 0000000000000006 RBX: ffff88802376de00 RCX: ffffffff81bf2e0e [ 112.437078][ T5081] RDX: 0000000000000000 RSI: ffffffff81bf2dc1 RDI: 0000000000000030 [ 112.458917][ T5081] RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 [ 112.495698][ T5081] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff81bfefc0 [ 112.534659][ T5081] R13: 0000000000000000 R14: ffff88807fe7e800 R15: ffff88801f50f8c0 [ 112.549610][ T5081] FS: 0000555564676380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 112.568644][ T5081] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 112.581346][ T5081] CR2: 0000560edf64b668 CR3: 000000007895a000 CR4: 0000000000350ef0 [ 112.589721][ T5081] Kernel panic - not syncing: Fatal exception [ 112.596090][ T5081] Kernel Offset: disabled [ 112.600421][ T5081] Rebooting in 86400 seconds..