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| author | MichelleJin <shjy180909@gmail.com> | 2021-09-27 06:34:57 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-17 11:19:49 +0300 |
| commit | 15a51ab442b46ff442ae410ecabe9f19ff7f7902 (patch) | |
| tree | 04b6d9a80eb4f66b38d29cae62cb43ecce61f516 /net/mac80211/mesh_pathtbl.c | |
| parent | 65492b05f4a4a18300863f00c51481cd8b32c689 (diff) | |
| download | linux-15a51ab442b46ff442ae410ecabe9f19ff7f7902.tar.xz | |
mac80211: check return value of rhashtable_init
[ Upstream commit 111461d573741c17eafad029ac93474fa9adcce0 ]
When rhashtable_init() fails, it returns -EINVAL.
However, since error return value of rhashtable_init is not checked,
it can cause use of uninitialized pointers.
So, fix unhandled errors of rhashtable_init.
Signed-off-by: MichelleJin <shjy180909@gmail.com>
Link: https://lore.kernel.org/r/20210927033457.1020967-4-shjy180909@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/mac80211/mesh_pathtbl.c')
| -rw-r--r-- | net/mac80211/mesh_pathtbl.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index 6dc5f93b1e4d..06b44c3c831a 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -63,7 +63,10 @@ static struct mesh_table *mesh_table_alloc(void) atomic_set(&newtbl->entries, 0); spin_lock_init(&newtbl->gates_lock); spin_lock_init(&newtbl->walk_lock); - rhashtable_init(&newtbl->rhead, &mesh_rht_params); + if (rhashtable_init(&newtbl->rhead, &mesh_rht_params)) { + kfree(newtbl); + return NULL; + } return newtbl; } |