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gpu: nvgpu: consider null character for strncat

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While forming string available length to strncat should consider null
character in last byte otherwise strncat can index the array out of
bounds.

CID 481139
CID 455841
Bug 3512546

Change-Id: I011be1deea40e276e681965deefb60fe8ab79479
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2710380
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Sagar Kamble
2022-05-10 15:54:23 +05:30
committed by mobile promotions
parent da884615d3
commit b7d436fd0e
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/nvgpu/os/linux/linux-dma.c
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@@ -48,7 +48,7 @@
*/ */
void nvgpu_dma_flags_to_str(struct gk20a *g, unsigned long flags, char *buf) void nvgpu_dma_flags_to_str(struct gk20a *g, unsigned long flags, char *buf)
{ {
int bytes_available = NVGPU_DMA_STR_SIZE; int bytes_available = NVGPU_DMA_STR_SIZE - 1;
memset(buf, 0, NVGPU_DMA_STR_SIZE); memset(buf, 0, NVGPU_DMA_STR_SIZE);