[PATCH] apparmor: signedness bug in aa_xattrs_match()

Dan Carpenter dan.carpenter at oracle.com
Mon Mar 19 10:34:44 UTC 2018

The "size" variable needs to be signed ssize_t so that the error
handling works correctly.

Fixes: 8e51f9087f40 ("apparmor: Add support for attaching profiles via xattr, presence and value")
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
index 57cc892e05a2..590b7e8cd21c 100644
--- a/security/apparmor/domain.c
+++ b/security/apparmor/domain.c
@@ -314,7 +314,7 @@ static int aa_xattrs_match(const struct linux_binprm *bprm,
 			   struct aa_profile *profile, unsigned int state)
 	int i;
-	size_t size;
+	ssize_t size;
 	struct dentry *d;
 	char *value = NULL;
 	int value_size = 0, ret = profile->xattr_count;
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