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-rw-r--r--security/keys/keyctl.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 993be63..acc9c89 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -731,10 +731,16 @@ long keyctl_chown_key(key_serial_t id, uid_t uid, gid_t gid)
/* transfer the quota burden to the new user */
if (test_bit(KEY_FLAG_IN_QUOTA, &key->flags)) {
+ unsigned maxkeys = (uid == 0) ?
+ key_quota_root_maxkeys : key_quota_maxkeys;
+ unsigned maxbytes = (uid == 0) ?
+ key_quota_root_maxbytes : key_quota_maxbytes;
+
spin_lock(&newowner->lock);
- if (newowner->qnkeys + 1 >= KEYQUOTA_MAX_KEYS ||
- newowner->qnbytes + key->quotalen >=
- KEYQUOTA_MAX_BYTES)
+ if (newowner->qnkeys + 1 >= maxkeys ||
+ newowner->qnbytes + key->quotalen >= maxbytes ||
+ newowner->qnbytes + key->quotalen <
+ newowner->qnbytes)
goto quota_overrun;
newowner->qnkeys++;
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