File: | src/lib/libc/sys/w_vfork.c |
Warning: | line 29, column 10 Call to function 'vfork' is insecure as it can lead to denial of service situations in the parent process. Replace calls to vfork with calls to the safer 'posix_spawn' function |
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1 | /* $OpenBSD: w_vfork.c,v 1.1 2016/05/07 19:05:22 guenther Exp $ */ |
2 | /* |
3 | * Copyright (c) 2015 Philip Guenther <guenther@openbsd.org> |
4 | * |
5 | * Permission to use, copy, modify, and distribute this software for any |
6 | * purpose with or without fee is hereby granted, provided that the above |
7 | * copyright notice and this permission notice appear in all copies. |
8 | * |
9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
16 | */ |
17 | |
18 | #include <tib.h> |
19 | #include <unistd.h> |
20 | #include "thread_private.h" |
21 | |
22 | pid_t |
23 | WRAP(vfork)_libc_vfork_wrap(void) |
24 | { |
25 | pid_t newid; |
26 | |
27 | if (_thread_cb.tc_vfork != NULL((void *)0)) |
28 | return (_thread_cb.tc_vfork()); |
29 | newid = vfork(); |
Call to function 'vfork' is insecure as it can lead to denial of service situations in the parent process. Replace calls to vfork with calls to the safer 'posix_spawn' function | |
30 | if (newid == 0) |
31 | TIB_GET()((struct tib *)((char *)(__amd64_read_tcb(0)) - (__builtin_offsetof (struct tib, __tib_self) + 0)))->tib_tid = getthrid(); |
32 | return newid; |
33 | } |
34 | DEF_WRAP(vfork)__asm__(".weak " "vfork" " ; " "vfork" " = " "_libc_vfork_wrap" ); |