If source string longer than max, kstrndup will alloc max+1 space. So, we should make sure the result will not over limit.
Signed-off-by: Ma Shimiao <[email protected]> --- drivers/nvme/target/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index b54748ad5f48..0ca259ee4dea 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -975,7 +975,7 @@ struct nvmet_subsys *nvmet_subsys_alloc(const char *subsysnqn, return NULL; } subsys->type = type; - subsys->subsysnqn = kstrndup(subsysnqn, NVMF_NQN_SIZE, + subsys->subsysnqn = kstrndup(subsysnqn, NVMF_NQN_SIZE - 1, GFP_KERNEL); if (!subsys->subsysnqn) { kfree(subsys); -- 2.13.6
