Ashish Mhetre ae282d2c22 video: tegra: nvmap: Fix error pointer dereference ...

In nvmap_try_duplicate_by_ivmid(), the return pointer from
nvmap_duplicate_handle() is getting dereferenced without checking
whether the pointer is error or valid. This is causing kernel panic.
Fix this by checking if the return pointer is invalid then return error.

Bug 3766497

Change-Id: I010893c9ebda60e313c4f776044a123073399ef2
Signed-off-by: Ashish Mhetre <amhetre@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2846180
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Ketan Patil <ketanp@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>

2023-04-11 05:54:22 +00:00

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tegra

video: tegra: nvmap: Fix error pointer dereference

2023-04-11 05:54:22 +00:00