mmap_min_addr check CAP_SYS_RAWIO only for write

[sfrench/cifs-2.6.git] / security / min_addr.c

diff --git a/security/min_addr.c b/security/min_addr.c
index e86f297522bfb9ea91de0ad929034bcccd59d57f..f728728f193bdc0b1a3d578c0f1fa69b016dfabb 100644 (file)
--- a/security/min_addr.c
+++ b/security/min_addr.c
@@ -33,7 +33,7 @@ int mmap_min_addr_handler(struct ctl_table *table, int write,
 {
        int ret;
 
-       if (!capable(CAP_SYS_RAWIO))
+       if (write && !capable(CAP_SYS_RAWIO))
                return -EPERM;
 
        ret = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);