./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2494578184 <...> Warning: Permanently added '10.128.1.171' (ED25519) to the list of known hosts. execve("./syz-executor2494578184", ["./syz-executor2494578184"], 0x7fffa166c2b0 /* 10 vars */) = 0 brk(NULL) = 0x555558718000 brk(0x555558718d00) = 0x555558718d00 arch_prctl(ARCH_SET_FS, 0x555558718380) = 0 set_tid_address(0x555558718650) = 5087 set_robust_list(0x555558718660, 24) = 0 rseq(0x555558718ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2494578184", 4096) = 28 getrandom("\x85\x64\x0e\x4d\x40\x2f\xda\x46", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555558718d00 brk(0x555558739d00) = 0x555558739d00 brk(0x55555873a000) = 0x55555873a000 mprotect(0x7fdfe5456000, 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 5088 attached , child_tidptr=0x555558718650) = 5088 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] set_robust_list(0x555558718660, 24) = 0 [pid 5088] mkdir("./syzkaller.eZTc56", 0700./strace-static-x86_64: Process 5089 attached [pid 5087] <... clone resumed>, child_tidptr=0x555558718650) = 5089 [pid 5089] set_robust_list(0x555558718660, 24 [pid 5088] <... mkdir resumed>) = 0 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... set_robust_list resumed>) = 0 [pid 5088] chmod("./syzkaller.eZTc56", 0777 [pid 5089] mkdir("./syzkaller.elT6k0", 0700 [pid 5088] <... chmod resumed>) = 0 [pid 5088] chdir("./syzkaller.eZTc56"./strace-static-x86_64: Process 5090 attached [pid 5089] <... mkdir resumed>) = 0 [pid 5088] <... chdir resumed>) = 0 [pid 5089] chmod("./syzkaller.elT6k0", 0777 [pid 5088] mkdir("./0", 0777 [pid 5087] <... clone resumed>, child_tidptr=0x555558718650) = 5090 [pid 5090] set_robust_list(0x555558718660, 24 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] <... set_robust_list resumed>) = 0 [pid 5089] <... chmod resumed>) = 0 [pid 5089] chdir("./syzkaller.elT6k0") = 0 [pid 5088] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5091 attached [pid 5090] mkdir("./syzkaller.ocidL0", 0700 [pid 5089] mkdir("./0", 0777 [pid 5088] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5087] <... clone resumed>, child_tidptr=0x555558718650) = 5091 [pid 5091] set_robust_list(0x555558718660, 24 [pid 5088] <... openat resumed>) = 3 [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5091] <... set_robust_list resumed>) = 0 [pid 5091] mkdir("./syzkaller.oPNSTq", 0700 [pid 5090] <... mkdir resumed>) = 0 [pid 5089] <... mkdir resumed>) = 0 [pid 5088] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5092 attached [pid 5087] <... clone resumed>, child_tidptr=0x555558718650) = 5092 [pid 5091] <... mkdir resumed>) = 0 [pid 5090] chmod("./syzkaller.ocidL0", 0777 [pid 5089] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5088] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5087] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] <... chmod resumed>) = 0 [pid 5089] <... openat resumed>) = 3 [pid 5088] close(3 [pid 5091] chmod("./syzkaller.oPNSTq", 0777) = 0 [pid 5090] chdir("./syzkaller.ocidL0" [pid 5091] chdir("./syzkaller.oPNSTq") = 0 [pid 5090] <... chdir resumed>) = 0 [pid 5092] set_robust_list(0x555558718660, 24 [pid 5091] mkdir("./0", 0777 [pid 5090] mkdir("./0", 0777 [pid 5089] ioctl(3, LOOP_CLR_FD [pid 5088] <... close resumed>) = 0 [pid 5092] <... set_robust_list resumed>) = 0 [pid 5092] mkdir("./syzkaller.psyu3S", 0700 [pid 5091] <... mkdir resumed>) = 0 [pid 5090] <... mkdir resumed>) = 0 [pid 5089] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5093 attached [pid 5092] <... mkdir resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] close(3) = 0 [pid 5093] set_robust_list(0x555558718660, 24 [pid 5091] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5092] chmod("./syzkaller.psyu3S", 0777 [pid 5087] <... clone resumed>, child_tidptr=0x555558718650) = 5093 [pid 5093] <... set_robust_list resumed>) = 0 [pid 5092] <... chmod resumed>) = 0 [pid 5091] <... openat resumed>) = 3 [pid 5093] mkdir("./syzkaller.ArtyU1", 0700 [pid 5090] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5092] chdir("./syzkaller.psyu3S" [pid 5093] <... mkdir resumed>) = 0 [pid 5091] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5094 attached ./strace-static-x86_64: Process 5095 attached [pid 5093] chmod("./syzkaller.ArtyU1", 0777 [pid 5092] <... chdir resumed>) = 0 [pid 5091] close(3 [pid 5090] <... openat resumed>) = 3 [pid 5095] set_robust_list(0x555558718660, 24 [pid 5091] <... close resumed>) = 0 [pid 5094] set_robust_list(0x555558718660, 24 [pid 5095] <... set_robust_list resumed>) = 0 [pid 5093] <... chmod resumed>) = 0 [pid 5092] mkdir("./0", 0777 [pid 5091] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] ioctl(3, LOOP_CLR_FD [pid 5089] <... clone resumed>, child_tidptr=0x555558718650) = 5094 [pid 5088] <... clone resumed>, child_tidptr=0x555558718650) = 5095 [pid 5094] <... set_robust_list resumed>) = 0 [pid 5095] chdir("./0" [pid 5092] <... mkdir resumed>) = 0 [pid 5094] chdir("./0") = 0 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5095] <... chdir resumed>) = 0 [pid 5093] chdir("./syzkaller.ArtyU1" [pid 5094] <... prctl resumed>) = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] <... chdir resumed>) = 0 [pid 5094] setpgid(0, 0 [pid 5095] <... prctl resumed>) = 0 [pid 5093] mkdir("./0", 0777 [pid 5094] <... setpgid resumed>) = 0 [pid 5095] setpgid(0, 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5095] <... setpgid resumed>) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] <... mkdir resumed>) = 0 [pid 5094] <... openat resumed>) = 3 [pid 5095] <... openat resumed>) = 3 [pid 5091] <... clone resumed>, child_tidptr=0x555558718650) = 5097 [pid 5095] write(3, "1000", 4) = 4 [pid 5095] close(3) = 0 [pid 5090] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5095] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5097 attached [pid 5094] write(3, "1000", 4 [pid 5095] <... symlink resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5092] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5090] close(3 [pid 5094] <... write resumed>) = 4 [pid 5090] <... close resumed>) = 0 [pid 5094] close(3) = 0 [pid 5092] <... openat resumed>) = 3 [pid 5097] set_robust_list(0x555558718660, 24 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] symlink("/dev/binderfs", "./binderfs" [pid 5093] <... openat resumed>) = 3 [pid 5094] <... symlink resumed>) = 0 [pid 5097] <... set_robust_list resumed>) = 0 [pid 5095] memfd_create("syzkaller", 0 [pid 5093] ioctl(3, LOOP_CLR_FD [pid 5097] chdir("./0"./strace-static-x86_64: Process 5098 attached ) = 0 [pid 5093] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5092] ioctl(3, LOOP_CLR_FD [pid 5090] <... clone resumed>, child_tidptr=0x555558718650) = 5098 [pid 5098] set_robust_list(0x555558718660, 24 [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5094] memfd_create("syzkaller", 0 [pid 5095] <... memfd_create resumed>) = 3 [pid 5093] close(3 [pid 5092] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5098] <... set_robust_list resumed>) = 0 [pid 5097] <... prctl resumed>) = 0 [pid 5092] close(3 [pid 5098] chdir("./0" [pid 5097] setpgid(0, 0 [pid 5092] <... close resumed>) = 0 [pid 5097] <... setpgid resumed>) = 0 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5093] <... close resumed>) = 0 [pid 5092] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5098] <... chdir resumed>) = 0 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5094] <... memfd_create resumed>) = 3 [pid 5095] <... mmap resumed>) = 0x7fdfdce00000 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5098] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5100 attached [pid 5097] <... openat resumed>) = 3 [pid 5094] <... mmap resumed>) = 0x7fdfdce00000 ./strace-static-x86_64: Process 5099 attached [pid 5100] set_robust_list(0x555558718660, 24 [pid 5098] setpgid(0, 0 [pid 5097] write(3, "1000", 4 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5098] <... setpgid resumed>) = 0 [pid 5099] set_robust_list(0x555558718660, 24 [pid 5100] chdir("./0" [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5097] <... write resumed>) = 4 [pid 5092] <... clone resumed>, child_tidptr=0x555558718650) = 5099 [pid 5099] <... set_robust_list resumed>) = 0 [pid 5097] close(3) = 0 [pid 5099] chdir("./0" [pid 5100] <... chdir resumed>) = 0 [pid 5098] <... openat resumed>) = 3 [pid 5097] symlink("/dev/binderfs", "./binderfs" [pid 5093] <... clone resumed>, child_tidptr=0x555558718650) = 5100 [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5098] write(3, "1000", 4 [pid 5099] <... chdir resumed>) = 0 [pid 5100] <... prctl resumed>) = 0 [pid 5098] <... write resumed>) = 4 [pid 5097] <... symlink resumed>) = 0 [pid 5098] close(3) = 0 [pid 5098] symlink("/dev/binderfs", "./binderfs" [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5098] <... symlink resumed>) = 0 [pid 5097] memfd_create("syzkaller", 0 [pid 5099] <... prctl resumed>) = 0 [pid 5100] setpgid(0, 0 [pid 5098] memfd_create("syzkaller", 0 [pid 5099] setpgid(0, 0 [pid 5100] <... setpgid resumed>) = 0 [pid 5097] <... memfd_create resumed>) = 3 [pid 5099] <... setpgid resumed>) = 0 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5100] <... openat resumed>) = 3 [pid 5098] <... memfd_create resumed>) = 3 [pid 5097] <... mmap resumed>) = 0x7fdfdce00000 [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5099] <... openat resumed>) = 3 [pid 5100] write(3, "1000", 4 [pid 5098] <... mmap resumed>) = 0x7fdfdce00000 [pid 5099] write(3, "1000", 4 [pid 5100] <... write resumed>) = 4 [pid 5099] <... write resumed>) = 4 [pid 5099] close(3) = 0 [pid 5099] symlink("/dev/binderfs", "./binderfs" [pid 5100] close(3) = 0 [pid 5100] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5099] <... symlink resumed>) = 0 [pid 5099] memfd_create("syzkaller", 0) = 3 [pid 5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdfdce00000 [pid 5100] memfd_create("syzkaller", 0) = 3 [pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdfdce00000 [pid 5097] 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 5095] 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 5094] 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 5099] 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 5098] 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 5100] 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 5099] <... write resumed>) = 16777216 [pid 5097] <... write resumed>) = 16777216 [pid 5097] munmap(0x7fdfdce00000, 138412032 [pid 5099] munmap(0x7fdfdce00000, 138412032 [pid 5097] <... munmap resumed>) = 0 [pid 5094] <... write resumed>) = 16777216 [pid 5095] <... write resumed>) = 16777216 [pid 5098] <... write resumed>) = 16777216 [pid 5094] munmap(0x7fdfdce00000, 138412032 [pid 5095] munmap(0x7fdfdce00000, 138412032 [pid 5097] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5097] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5099] <... munmap resumed>) = 0 [pid 5098] munmap(0x7fdfdce00000, 138412032 [pid 5099] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5099] ioctl(4, LOOP_SET_FD, 3 [pid 5097] close(3) = 0 [pid 5097] close(4 [pid 5099] <... ioctl resumed>) = 0 [pid 5097] <... close resumed>) = 0 [pid 5097] mkdir("./bus", 0777 [pid 5099] close(3 [pid 5097] <... mkdir resumed>) = 0 [pid 5099] <... close resumed>) = 0 [pid 5099] close(4) = 0 [pid 5099] mkdir("./bus", 0777) = 0 [pid 5097] mount("/dev/loop3", "./bus", "jfs", 0, "discard=0x0000000000000004,usrquota,iocharset=ascii,errors=remount-ro,nointegrity,noquota,nodiscard" [ 109.828387][ T5097] loop3: detected capacity change from 0 to 32768 [ 109.850061][ T5099] loop4: detected capacity change from 0 to 32768 [pid 5099] mount("/dev/loop4", "./bus", "jfs", 0, "discard=0x0000000000000004,usrquota,iocharset=ascii,errors=remount-ro,nointegrity,noquota,nodiscard" [pid 5094] <... munmap resumed>) = 0 [pid 5094] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5100] <... write resumed>) = 16777216 [pid 5098] <... munmap resumed>) = 0 [pid 5094] ioctl(4, LOOP_SET_FD, 3 [pid 5095] <... munmap resumed>) = 0 [pid 5100] munmap(0x7fdfdce00000, 138412032 [pid 5098] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5099] <... mount resumed>) = 0 [pid 5098] <... openat resumed>) = 4 [pid 5095] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5098] ioctl(4, LOOP_SET_FD, 3 [pid 5095] <... openat resumed>) = 4 [pid 5098] <... ioctl resumed>) = 0 [pid 5095] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5099] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5099] chdir("./bus") = 0 [pid 5099] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5094] <... ioctl resumed>) = 0 [pid 5094] close(3) = 0 [pid 5094] close(4) = 0 [pid 5094] mkdir("./bus", 0777) = 0 [pid 5099] exit_group(0 [pid 5094] mount("/dev/loop1", "./bus", "jfs", 0, "discard=0x0000000000000004,usrquota,iocharset=ascii,errors=remount-ro,nointegrity,noquota,nodiscard" [pid 5099] <... exit_group resumed>) = ? [pid 5099] +++ exited with 0 +++ [pid 5098] close(3 [pid 5092] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=41 /* 0.41 s */} --- [pid 5098] <... close resumed>) = 0 [pid 5098] close(4 [pid 5092] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5098] <... close resumed>) = 0 [pid 5092] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5092] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5095] close(3 [pid 5092] newfstatat(3, "", [pid 5095] <... close resumed>) = 0 [pid 5098] mkdir("./bus", 0777 [pid 5092] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5095] close(4 [pid 5092] getdents64(3, [pid 5095] <... close resumed>) = 0 [pid 5098] <... mkdir resumed>) = 0 [pid 5095] mkdir("./bus", 0777 [pid 5092] <... getdents64 resumed>0x5555587196f0 /* 4 entries */, 32768) = 104 [pid 5098] mount("/dev/loop2", "./bus", "jfs", 0, "discard=0x0000000000000004,usrquota,iocharset=ascii,errors=remount-ro,nointegrity,noquota,nodiscard" [pid 5097] <... mount resumed>) = 0 [pid 5095] <... mkdir resumed>) = 0 [pid 5097] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5092] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5097] <... openat resumed>) = 3 [ 109.933109][ T5094] loop1: detected capacity change from 0 to 32768 [ 109.949591][ T5098] loop2: detected capacity change from 0 to 32768 [ 109.958121][ T5095] loop0: detected capacity change from 0 to 32768 [pid 5098] <... mount resumed>) = 0 [pid 5097] chdir("./bus" [pid 5094] <... mount resumed>) = 0 [pid 5098] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5097] <... chdir resumed>) = 0 [pid 5098] <... openat resumed>) = 3 [pid 5097] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5098] chdir("./bus" [pid 5097] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5095] mount("/dev/loop0", "./bus", "jfs", 0, "discard=0x0000000000000004,usrquota,iocharset=ascii,errors=remount-ro,nointegrity,noquota,nodiscard" [pid 5098] <... chdir resumed>) = 0 [pid 5097] exit_group(0 [pid 5094] <... openat resumed>) = 3 [pid 5098] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5094] chdir("./bus") = 0 [pid 5098] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5097] <... exit_group resumed>) = ? [pid 5094] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5098] exit_group(0 [pid 5097] +++ exited with 0 +++ [pid 5094] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5094] exit_group(0 [pid 5091] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=37 /* 0.37 s */} --- [pid 5094] <... exit_group resumed>) = ? [pid 5098] <... exit_group resumed>) = ? [pid 5091] restart_syscall(<... resuming interrupted clone ...> [pid 5094] +++ exited with 0 +++ [pid 5091] <... restart_syscall resumed>) = 0 [pid 5100] <... munmap resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=39 /* 0.39 s */} --- [pid 5091] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5091] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5091] newfstatat(3, "", [pid 5089] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5091] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5089] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5098] +++ exited with 0 +++ [pid 5091] getdents64(3, [pid 5089] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5091] <... getdents64 resumed>0x5555587196f0 /* 4 entries */, 32768) = 104 [pid 5091] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=42 /* 0.42 s */} --- [pid 5090] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5089] <... openat resumed>) = 3 [pid 5100] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5090] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5089] newfstatat(3, "", [pid 5100] <... openat resumed>) = 4 [ 110.061374][ T5091] general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 110.073718][ T5091] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 110.082160][ T5091] CPU: 1 PID: 5091 Comm: syz-executor249 Not tainted 6.9.0-rc5-syzkaller-00036-g9d1ddab261f3 #0 [ 110.092632][ T5091] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 110.102735][ T5091] RIP: 0010:write_special_inodes+0x71/0x170 [ 110.108720][ T5091] Code: df e8 b3 b2 82 fe 48 8d 7b 10 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 c0 00 00 00 4c 8b 6b 10 49 8d 7d 30 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 da 00 00 00 49 8b 7d 30 2e e8 1b bc d3 07 48 8d [ 110.128375][ T5091] RSP: 0018:ffffc9000301fbb8 EFLAGS: 00010216 [ 110.134484][ T5091] RAX: 0000000000000006 RBX: ffff888022df9000 RCX: ffffffff81c02f1e [ 110.142489][ T5091] RDX: ffff888021ab0000 RSI: ffffffff830c514d RDI: 0000000000000030 [ 110.150499][ T5091] RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 [ 110.158512][ T5091] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff81c0f1a0 [ 110.166512][ T5091] R13: 0000000000000000 R14: ffff88801fcf0800 R15: ffff888017ef1380 [ 110.174509][ T5091] FS: 0000555558718380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 110.183463][ T5091] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.190070][ T5091] CR2: 00007ffde1b6f88c CR3: 000000007af96000 CR4: 0000000000350ef0 [ 110.198066][ T5091] Call Trace: [ 110.201356][ T5091] [ 110.204296][ T5091] ? show_regs+0x8c/0xa0 [ 110.208566][ T5091] ? die_addr+0x4f/0xd0 [ 110.212747][ T5091] ? exc_general_protection+0x155/0x230 [ 110.218359][ T5091] ? asm_exc_general_protection+0x26/0x30 [ 110.224107][ T5091] ? __pfx_filemap_flush+0x10/0x10 [ 110.229256][ T5091] ? filemap_fdatawrite_wbc+0xce/0x1c0 [ 110.234742][ T5091] ? write_special_inodes+0x4d/0x170 [ 110.240062][ T5091] ? write_special_inodes+0x71/0x170 [ 110.245732][ T5091] ? write_special_inodes+0x4d/0x170 [ 110.251058][ T5091] lmLogSync+0x4a0/0x820 [ 110.255355][ T5091] ? __pfx_lmLogSync+0x10/0x10 [ 110.260183][ T5091] ? __pfx_dquot_writeback_dquots+0x10/0x10 [ 110.266139][ T5091] jfs_syncpt+0x89/0xa0 [ 110.270365][ T5091] jfs_sync_fs+0x83/0xb0 [ 110.274638][ T5091] ? __pfx_jfs_sync_fs+0x10/0x10 [ 110.279615][ T5091] sync_filesystem+0x110/0x290 [ 110.284427][ T5091] generic_shutdown_super+0x7e/0x3d0 [ 110.289780][ T5091] kill_block_super+0x3b/0x90 [ 110.294527][ T5091] deactivate_locked_super+0xc1/0x1a0 [ 110.299948][ T5091] deactivate_super+0xde/0x100 [ 110.304759][ T5091] cleanup_mnt+0x222/0x450 [ 110.309221][ T5091] task_work_run+0x151/0x250 [ 110.313845][ T5091] ? __pfx_task_work_run+0x10/0x10 [ 110.319023][ T5091] ptrace_notify+0x10e/0x130 [ 110.323672][ T5091] syscall_exit_to_user_mode_prepare+0x126/0x260 [ 110.330053][ T5091] syscall_exit_to_user_mode+0x11/0x2a0 [ 110.335658][ T5091] do_syscall_64+0xdc/0x260 [ 110.340198][ T5091] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 110.346129][ T5091] RIP: 0033:0x7fdfe53dd437 [ 110.350565][ T5091] 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 [ 110.370202][ T5091] RSP: 002b:00007ffde1b6f878 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 110.378641][ T5091] RAX: 0000000000000000 RBX: 000000000001a724 RCX: 00007fdfe53dd437 [ 110.386723][ T5091] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffde1b6f930 [ 110.394714][ T5091] RBP: 00007ffde1b6f930 R08: 0000000000000000 R09: 0000000000000000 [ 110.402733][ T5091] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffde1b70990 [pid 5090] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5089] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5100] ioctl(4, LOOP_SET_FD, 3 [pid 5095] <... mount resumed>) = 0 [pid 5089] getdents64(3, [pid 5095] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5095] chdir("./bus") = 0 [pid 5095] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5095] exit_group(0) = ? [pid 5095] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=40 /* 0.40 s */} --- [pid 5088] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5088] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5089] <... getdents64 resumed>0x5555587196f0 /* 4 entries */, 32768) = 104 [pid 5088] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5100] <... ioctl resumed>) = 0 [pid 5090] <... openat resumed>) = 3 [pid 5088] getdents64(3, [pid 5100] close(3 [pid 5090] newfstatat(3, "", [pid 5088] <... getdents64 resumed>0x5555587196f0 /* 4 entries */, 32768) = 104 [pid 5100] <... close resumed>) = 0 [pid 5090] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5088] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5090] getdents64(3, [pid 5100] close(4 [pid 5090] <... getdents64 resumed>0x5555587196f0 /* 4 entries */, 32768) = 104 [pid 5090] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5100] <... close resumed>) = 0 [pid 5100] mkdir("./bus", 0777) = 0 [pid 5089] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [ 110.410947][ T5091] R13: 00005555587196c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 110.418963][ T5091] [ 110.421997][ T5091] Modules linked in: [ 110.438381][ T5100] loop5: detected capacity change from 0 to 32768 [ 110.472348][ T5091] ---[ end trace 0000000000000000 ]--- [ 110.478593][ T5091] RIP: 0010:write_special_inodes+0x71/0x170 [ 110.485579][ T5091] Code: df e8 b3 b2 82 fe 48 8d 7b 10 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 c0 00 00 00 4c 8b 6b 10 49 8d 7d 30 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 da 00 00 00 49 8b 7d 30 2e e8 1b bc d3 07 48 8d [ 110.505978][ T5091] RSP: 0018:ffffc9000301fbb8 EFLAGS: 00010216 [ 110.513283][ T5091] RAX: 0000000000000006 RBX: ffff888022df9000 RCX: ffffffff81c02f1e [ 110.521728][ T5091] RDX: ffff888021ab0000 RSI: ffffffff830c514d RDI: 0000000000000030 [ 110.530437][ T5091] RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 [ 110.538484][ T5091] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff81c0f1a0 [ 110.546518][ T5091] R13: 0000000000000000 R14: ffff88801fcf0800 R15: ffff888017ef1380 [ 110.554516][ T5091] FS: 0000555558718380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 110.563519][ T5091] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.570160][ T5091] CR2: 00007ffde1b71000 CR3: 000000007af96000 CR4: 0000000000350ef0 [ 110.578212][ T5091] Kernel panic - not syncing: Fatal exception [ 110.584615][ T5091] Kernel Offset: disabled [ 110.588946][ T5091] Rebooting in 86400 seconds..