This is a note to let you know that I've just added the patch titled
apparmor: fix aa_label_asxprint return check
to the 5.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
apparmor-fix-aa_label_asxprint-return-check.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 3e2a3a0830a2090e766d0d887d52c67de2a6f323 Mon Sep 17 00:00:00 2001
From: Tom Rix <trix@xxxxxxxxxx>
Date: Sun, 13 Feb 2022 13:32:28 -0800
Subject: apparmor: fix aa_label_asxprint return check
From: Tom Rix <trix@xxxxxxxxxx>
commit 3e2a3a0830a2090e766d0d887d52c67de2a6f323 upstream.
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@xxxxxxxxxx>
Signed-off-by: John Johansen <john.johansen@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
security/apparmor/label.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/security/apparmor/label.c
+++ b/security/apparmor/label.c
@@ -1744,7 +1744,7 @@ void aa_label_xaudit(struct audit_buffer
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
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,
int len;
len = aa_label_asxprint(&str, ns, label, flags, gfp);
- if (len == -1) {
+ if (len < 0) {
AA_DEBUG("label print error");
return;
}
Patches currently in stable-queue which might be from trix@xxxxxxxxxx are
queue-5.19/apparmor-fix-aa_label_asxprint-return-check.patch
