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[Qemu-devel] [PATCH 2/2] qga: try to unlink just created guest-file if f
From: |
Laszlo Ersek |
Subject: |
[Qemu-devel] [PATCH 2/2] qga: try to unlink just created guest-file if fchmod() fails on it |
Date: |
Tue, 7 May 2013 18:56:48 +0200 |
We shouldn't allow guest filesystem pollution on error paths.
Suggested-by: Eric Blake <address@hidden>
Signed-off-by: Laszlo Ersek <address@hidden>
---
qga/commands-posix.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 2eec712..d301b1f 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -341,6 +341,7 @@ safe_open_or_create(const char *path, const char *mode,
Error **err)
error_setg_errno(&local_err, errno, "failed to set permission "
"0%03o on new file '%s' (mode: '%s')",
(unsigned)DEFAULT_NEW_FILE_MODE, path, mode);
+ unlink(path);
} else {
FILE *f;
--
1.7.1
Re: [Qemu-devel] [PATCH] qga: set umask 0077 when daemonizing (CVE-2013-2007), mdroth, 2013/05/07