Commit c772be52319de9756fd82f36d37a6d3e003441e3
1 parent
574732c73d
param: fix uninitialized read with CONFIG_DEBUG_LOCK_ALLOC
ignore_lockdep is uninitialized, and sysfs_attr_init() doesn't initialize it, so memset to 0. Reported-by: Huang Ying <ying.huang@intel.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Showing 1 changed file with 1 additions and 0 deletions Side-by-side Diff
kernel/params.c
| ... | ... | @@ -642,6 +642,7 @@ |
| 642 | 642 | mk->mp->grp.attrs = new_attrs; |
| 643 | 643 | |
| 644 | 644 | /* Tack new one on the end. */ |
| 645 | + memset(&mk->mp->attrs[mk->mp->num], 0, sizeof(mk->mp->attrs[0])); | |
| 645 | 646 | sysfs_attr_init(&mk->mp->attrs[mk->mp->num].mattr.attr); |
| 646 | 647 | mk->mp->attrs[mk->mp->num].param = kp; |
| 647 | 648 | mk->mp->attrs[mk->mp->num].mattr.show = param_attr_show; |