https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238035
--- Comment #2 from Andrew Turner <[email protected]> --- The reproducer Syzkaller found is below. // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include <pwd.h> #include <stdarg.h> #include <stdbool.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/endian.h> #include <sys/syscall.h> #include <unistd.h> uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; int main(void) { syscall(SYS_mmap, 0x20000000, 0x1000000, 3, 0x1012, -1, 0); intptr_t res = 0; memcpy((void*)0x20000040, "/dev///\000", 8); res = syscall(SYS_openat, 0xffffffffffffff9c, 0x20000040, 0, 0); if (res != -1) r[0] = res; res = syscall(SYS_dup2, r[0], r[0]); if (res != -1) r[1] = res; syscall(SYS_fcntl, r[1], 0xf, 0); return 0; } -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "[email protected]"
