nvme_nvm_id->ppaf is 4 bytes larger than nvm_id->ppaf. We're using the larger size struct for the sizeof() so we end up corrupting the first four bytes of nvm_id->groups[]. It doesn't look like we actually want to copy those last bytes anyway.
Signed-off-by: Dan Carpenter <[email protected]> --- Static analysis, not tested. Please review this one carefully, I think this bug would show up in testing. diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c index 5cd3725..0f0864f 100644 --- a/drivers/nvme/host/lightnvm.c +++ b/drivers/nvme/host/lightnvm.c @@ -319,7 +319,7 @@ static int nvme_nvm_identity(struct nvm_dev *nvmdev, struct nvm_id *nvm_id) nvm_id->cap = le32_to_cpu(nvme_nvm_id->cap); nvm_id->dom = le32_to_cpu(nvme_nvm_id->dom); memcpy(&nvm_id->ppaf, &nvme_nvm_id->ppaf, - sizeof(struct nvme_nvm_addr_format)); + sizeof(struct nvm_addr_format)); ret = init_grps(nvm_id, nvme_nvm_id); out:
