systemd/fix-potential-bad-mem-access.patch
Robert Milasan 294700e6ce - udev: re-add persistent network rules (bnc#809843).
add: 1026-re-add-persistent-net.patch
- rebase all patches, ensure that they apply properly.

OBS-URL: https://build.opensuse.org/package/show/Base:System/systemd?expand=0&rev=357
2013-03-20 10:29:34 +00:00

46 lines
1.9 KiB
Diff

From ac97e2c559f5d386a332aba4a24bf9930cdb1c51 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Mon, 19 Nov 2012 16:36:38 +0100
Subject: [PATCH] core/load-fragment: fix (potential) bad memory access
strncmp() could be used with size bigger then the size of the string,
because MAX was used instead of MIN.
If failing, print just the offending mount flag.
---
src/core/load-fragment.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
Index: systemd-195/src/core/load-fragment.c
===================================================================
--- systemd-195.orig/src/core/load-fragment.c
+++ systemd-195/src/core/load-fragment.c
@@ -1083,15 +1083,22 @@ int config_parse_exec_mount_flags(
assert(rvalue);
assert(data);
- FOREACH_WORD_QUOTED(w, l, rvalue, state) {
- if (strncmp(w, "shared", MAX(l, 6U)) == 0)
+ FOREACH_WORD_SEPARATOR(w, l, rvalue, ", ", state) {
+ char _cleanup_free_ *t;
+
+ t = strndup(w, l);
+ if (!t)
+ return -ENOMEM;
+
+ if (streq(t, "shared"))
flags |= MS_SHARED;
- else if (strncmp(w, "slave", MAX(l, 5U)) == 0)
+ else if (streq(t, "slave"))
flags |= MS_SLAVE;
- else if (strncmp(w, "private", MAX(l, 7U)) == 0)
+ else if (streq(w, "private"))
flags |= MS_PRIVATE;
else {
- log_error("[%s:%u] Failed to parse mount flags, ignoring: %s", filename, line, rvalue);
+ log_error("[%s:%u] Failed to parse mount flag %s, ignoring: %s",
+ filename, line, t, rvalue);
return 0;
}
}