9f6afb2449
WITH_SHAPER requires WITH_CTRLS [1] PR: ports/163941 [1] Reported by: Matthew Pounsett <matt@conundrum.com> [1]
44 lines
908 B
C
44 lines
908 B
C
--- src/fsio.c.orig 2010-04-12 21:00:00.000000000 +0200
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+++ src/fsio.c 2011-12-29 21:51:33.844925577 +0100
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@@ -50,6 +50,10 @@
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# include <acl/libacl.h>
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#endif
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+#if defined(__FreeBSD__)
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+#include <dlfcn.h>
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+#endif
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+
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typedef struct fsopendir fsopendir_t;
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struct fsopendir {
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@@ -284,7 +288,30 @@
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#endif
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}
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+#if defined(__FreeBSD__)
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+static int
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+enter_freebsd_restricted_mode()
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+{
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+ typedef void frmode_t();
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+ frmode_t *frmode;
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+
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+ frmode = (frmode_t *)dlfunc(
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+ RTLD_NEXT, "__FreeBSD_libc_enter_restricted_mode");
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+ if (frmode == NULL) {
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+ pr_log_pri(PR_LOG_ERR,
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+ "error: FreeBSD with vulnerable chroot (FreeBSD-SA-11:07.chroot)");
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+ return 1;
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+ }
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+ frmode();
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+ return 0;
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+}
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+#endif
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+
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static int sys_chroot(pr_fs_t *fs, const char *path) {
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+#if defined(__FreeBSD__)
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+ if (enter_freebsd_restricted_mode() != 0)
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+ return -1;
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+#endif
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if (chroot(path) < 0)
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return -1;
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