From: Zhipeng Lu <alexious@zju.edu.cn> stable inclusion from stable-v4.19.308 commit 2e4f9f20b32658ef3724aa46f7aef4908d2609e3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9HJPD CVE: CVE-2024-26839 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit 809aa64ebff51eb170ee31a95f83b2d21efa32e2 ] When dma_alloc_coherent fails to allocate dd->cr_base[i].va, init_credit_return should deallocate dd->cr_base and dd->cr_base[i] that allocated before. Or those resources would be never freed and a memleak is triggered. Fixes: 7724105686e7 ("IB/hfi1: add driver files") Signed-off-by: Zhipeng Lu <alexious@zju.edu.cn> Link: https://lore.kernel.org/r/20240112085523.3731720-1-alexious@zju.edu.cn Acked-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Zhenzeng Su <suzhenzeng@huawei.com> --- drivers/infiniband/hw/hfi1/pio.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hfi1/pio.c b/drivers/infiniband/hw/hfi1/pio.c index 752057647f09..d6d18bb94f73 100644 --- a/drivers/infiniband/hw/hfi1/pio.c +++ b/drivers/infiniband/hw/hfi1/pio.c @@ -2117,7 +2117,7 @@ int init_credit_return(struct hfi1_devdata *dd) "Unable to allocate credit return DMA range for NUMA %d\n", i); ret = -ENOMEM; - goto done; + goto free_cr_base; } } set_dev_node(&dd->pcidev->dev, dd->node); @@ -2125,6 +2125,10 @@ int init_credit_return(struct hfi1_devdata *dd) ret = 0; done: return ret; + +free_cr_base: + free_credit_return(dd); + goto done; } void free_credit_return(struct hfi1_devdata *dd) -- 2.25.1