Files
linux-nvgpu/drivers/gpu/nvgpu/os/linux
Debarshi Dutta e616b2ba4d gpu: nvgpu: fix access-out-of-bounds issue
As part of the function gp10b_clk_get_freqs, the code walksthrough
the H/W frequency table and populates the gp10b_freq_table by picking
only GP10B_NUM_SUPPORTED_FREQS =
 GP10B_MAX_SUPPORTED_FREQS/GP10B_FREQ_SELECT_STEP frequencies at max.

The access-out-of-bounds happen when sel_freq_count reaches
GP10B_NUM_SUPPORTED_FREQS and new_rate equals max_rate, resulting
in one additional update that is beyond the size of gp10b_freq_table
table.

Also, removed the warning as it will never be true.

Bug 3407276

Change-Id: Ic496ccdda1784130e7139bd93d068be58eb60a35
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2617850
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
2021-11-02 14:04:47 -07:00
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