Messages in this thread | | | Date | Sun, 13 Feb 2022 19:40:18 -0800 | Subject | Re: [PATCH] apparmor: fix aa_label_asxprint return check | From | John Johansen <> |
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On 2/13/22 13:32, trix@redhat.com wrote: > 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>
Acked-by: John Johansen <john.johansen@canonical.com>
thanks I have pulled this into my tree
> --- > 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; > }
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