From: farah kassabri <fkassabri@habana.ai>
Date: Tue, 20 Sep 2022 08:48:40 +0000 (+0300)
Subject: habanalabs: zero ts registration buff when allocated
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=679e968908a4997d02c2a7df294e97b066f9149f;p=linux.git

habanalabs: zero ts registration buff when allocated

To avoid memory corruption in kernel memory while using timestamp
registration nodes, zero the kernel buff memory when its allocated.

Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---

diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c
index 99b1d6ce26aef..541e1b6a2176d 100644
--- a/drivers/misc/habanalabs/common/memory.c
+++ b/drivers/misc/habanalabs/common/memory.c
@@ -2109,7 +2109,7 @@ static int hl_ts_alloc_buf(struct hl_mmap_mem_buf *buf, gfp_t gfp, void *args)
 
 	/* Allocate the internal kernel buffer */
 	size = num_elements * sizeof(struct hl_user_pending_interrupt);
-	p = vmalloc(size);
+	p = vzalloc(size);
 	if (!p)
 		goto free_user_buff;