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authorXiaotian Feng <dfeng@redhat.com>2010-02-09 08:22:24 +1100
committerJames Morris <jmorris@namei.org>2010-02-09 08:22:24 +1100
commit8007f10259d04f37044c2c731bf9ccdd9161d825 (patch)
tree6accff6b70b4780bc62824c419582f4cace56f23 /security/selinux
parentea13ddbad0eb4be9cdc406cd7e0804fa4011f6e4 (diff)
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selinux: fix memory leak in sel_make_bools
In sel_make_bools, kernel allocates memory for bool_pending_names[i] with security_get_bools. So if we just free bool_pending_names, those memories for bool_pending_names[i] will be leaked. This patch resolves dozens of following kmemleak report after resuming from suspend: unreferenced object 0xffff88022e4c7380 (size 32): comm "init", pid 1, jiffies 4294677173 backtrace: [<ffffffff810f76b5>] create_object+0x1a2/0x2a9 [<ffffffff810f78bb>] kmemleak_alloc+0x26/0x4b [<ffffffff810ef3eb>] __kmalloc+0x18f/0x1b8 [<ffffffff811cd511>] security_get_bools+0xd7/0x16f [<ffffffff811c48c0>] sel_write_load+0x12e/0x62b [<ffffffff810f9a39>] vfs_write+0xae/0x10b [<ffffffff810f9b56>] sys_write+0x4a/0x6e [<ffffffff81011b82>] system_call_fastpath+0x16/0x1b [<ffffffffffffffff>] 0xffffffffffffffff Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/selinux')
-rw-r--r--security/selinux/selinuxfs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index a1cfc464bbb..cd191bbec03 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -977,6 +977,8 @@ static int sel_make_bools(void)
u32 sid;
/* remove any existing files */
+ for (i = 0; i < bool_num; i++)
+ kfree(bool_pending_names[i]);
kfree(bool_pending_names);
kfree(bool_pending_values);
bool_pending_names = NULL;