From: farah kassabri fkassabri@habana.ai
[ Upstream commit 679e968908a4997d02c2a7df294e97b066f9149f ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/misc/habanalabs/common/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c index 61bc1bfe984a..751f8c751b72 100644 --- a/drivers/misc/habanalabs/common/memory.c +++ b/drivers/misc/habanalabs/common/memory.c @@ -2097,7 +2097,7 @@ 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;