diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/devres.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/base/devres.c b/drivers/base/devres.c index 95b67281cd2a..f98a097e73f2 100644 --- a/drivers/base/devres.c +++ b/drivers/base/devres.c @@ -84,9 +84,14 @@ static struct devres_group * node_to_group(struct devres_node *node) static __always_inline struct devres * alloc_dr(dr_release_t release, size_t size, gfp_t gfp, int nid) { - size_t tot_size = sizeof(struct devres) + size; + size_t tot_size; struct devres *dr; + /* We must catch any near-SIZE_MAX cases that could overflow. */ + if (unlikely(check_add_overflow(sizeof(struct devres), size, + &tot_size))) + return NULL; + dr = kmalloc_node_track_caller(tot_size, gfp, nid); if (unlikely(!dr)) return NULL; |