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Red Hat Bugzilla – Attachment 155559 Details for
Bug 241609
fexecve() fails after calling setuid() or seteuid()
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A program that demonstrates the bug.
fexec.c (text/x-csrc), 540 bytes, created by
Rennie deGraaf
on 2007-05-28 21:12:18 UTC
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Description:
A program that demonstrates the bug.
Filename:
MIME Type:
Creator:
Rennie deGraaf
Created:
2007-05-28 21:12:18 UTC
Size:
540 bytes
patch
obsolete
>#define _GNU_SOURCE >#include <unistd.h> >#include <sys/types.h> >#include <sys/stat.h> >#include <fcntl.h> >#include <stdio.h> >#include <errno.h> > >int main() >{ > char* file = "/bin/true"; > char* prog_argv[2] = {file, NULL}; > char* prog_env[1] = {NULL}; > int retval; > int fd; > > fd = open("/bin/true", O_RDONLY); > > setuid(99); /* nobody */ > /*seteuid(99);*/ > > retval = fexecve(fd, prog_argv, prog_env); > if (retval == -1) > printf("fexecve() failed; errno = %u\n", errno); > > return -1; >}
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bug 241609
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