VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: John Johansen <john.johansen@canonical.com> 2023-03-10 15:59:45 -0800 committer: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2023-07-19 16:36:49 +0200 commit: 6108e25cfe4336de0583872d402884178b6ef8f1 parent: 33b1fe578f7d3cf6cdf0765ef9376644b1905c68
Commit Summary:
apparmor: fix policy_compat permission remap with extended permissions
Diffstat:
1 file changed, 19 insertions, 12 deletions
diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c
index 72aac376d3ed..d50774a16494 100644
--- a/security/apparmor/policy_unpack.c
+++ b/security/apparmor/policy_unpack.c
@@ -860,10 +860,12 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 		}
 		profile->attach.xmatch_len = tmp;
 		profile->attach.xmatch.start[AA_CLASS_XMATCH] = DFA_START;
-		error = aa_compat_map_xmatch(&profile->attach.xmatch);
-		if (error) {
-			info = "failed to convert xmatch permission table";
-			goto fail;
+		if (!profile->attach.xmatch.perms) {
+			error = aa_compat_map_xmatch(&profile->attach.xmatch);
+			if (error) {
+				info = "failed to convert xmatch permission table";
+				goto fail;
+			}
 		}
 	}
 
@@ -983,10 +985,13 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 				      AA_CLASS_FILE);
 		if (!aa_unpack_nameX(e, AA_STRUCTEND, NULL))
 			goto fail;
-		error = aa_compat_map_policy(&rules->policy, e->version);
-		if (error) {
-			info = "failed to remap policydb permission table";
-			goto fail;
+		if (!rules->policy.perms) {
+			error = aa_compat_map_policy(&rules->policy,
+						     e->version);
+			if (error) {
+				info = "failed to remap policydb permission table";
+				goto fail;
+			}
 		}
 	} else {
 		rules->policy.dfa = aa_get_dfa(nulldfa);
@@ -1001,10 +1006,12 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 	if (error) {
 		goto fail;
 	} else if (rules->file.dfa) {
-		error = aa_compat_map_file(&rules->file);
-		if (error) {
-			info = "failed to remap file permission table";
-			goto fail;
+		if (!rules->file.perms) {
+			error = aa_compat_map_file(&rules->file);
+			if (error) {
+				info = "failed to remap file permission table";
+				goto fail;
+			}
 		}
 	} else if (rules->policy.dfa &&
 		   rules->policy.start[AA_CLASS_FILE]) {