[PATCH] apparmor: fix aa_label_asxprint return check
flat view
STALE1706d
From: trix@redhat.com
Date: 2022-02-13 21:32:42
Also in:
lkml, llvm
Subsystem:
apparmor security module, security subsystem, the rest · Maintainers:
John Johansen, John Johansen, Georgia Garcia, Paul Moore, James Morris, "Serge E. Hallyn", Linus Torvalds
From: Tom Rix <trix@redhat.com>
Clang static analysis reports this issue
label.c:1802:3: warning: 2nd function call argument
is an uninitialized value
pr_info("%s", str);
^~~~~~~~~~~~~~~~~~
str is set from a successful call to aa_label_asxprint(&str, ...)
On failure a negative value is returned, not a -1. So change
the check.
Fixes: f1bd904175e8 ("apparmor: add the base fns() for domain labels")
Signed-off-by: Tom Rix <trix@redhat.com>
---
security/apparmor/label.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/security/apparmor/label.c b/security/apparmor/label.c
index 9eb9a9237926..a658b67c784c 100644
--- a/security/apparmor/label.c
+++ b/security/apparmor/label.c@@ -1744,7 +1744,7 @@ void aa_label_xaudit(struct audit_buffer *ab, struct aa_ns *ns, if (!use_label_hname(ns, label, flags) || display_mode(ns, label, flags)) { len = aa_label_asxprint(&name, ns, label, flags, gfp); - if (len == -1) { + if (len < 0) { AA_DEBUG("label print error"); return; }
@@ -1772,7 +1772,7 @@ void aa_label_seq_xprint(struct seq_file *f, struct aa_ns *ns, int len; len = aa_label_asxprint(&str, ns, label, flags, gfp); - if (len == -1) { + if (len < 0) { AA_DEBUG("label print error"); return; }
@@ -1795,7 +1795,7 @@ void aa_label_xprintk(struct aa_ns *ns, struct aa_label *label, int flags, int len; len = aa_label_asxprint(&str, ns, label, flags, gfp); - if (len == -1) { + if (len < 0) { AA_DEBUG("label print error"); return; }
--
2.26.3