diff options
Diffstat (limited to 'security/keys/keyctl.c')
| -rw-r--r-- | security/keys/keyctl.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c index 993be634a5ef..acc9c89e40a8 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++; |